Monday, Dec 31, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

Good Morning
As we close out 2018, I would like to thank all of you for your support to lakegregoryweather.com over the last several years. I hope that my weather posts have been beneficial to you in some way, whether it’s the Webcams, Forecasts, or some of the many other options here on the website, and will continue to be in the future. Thank you. lakegregoryweather.com. RC.
Today we have Fog along the Rim as expected. An area of Low pressure is currently sliding South along the Coast of SoCal and is just offshore as of 7am. This will bring increasing clouds today with a slight chance for a rain or snow shower to the local mountains. Most of the energy from this Low will stay West of the Mountains toward the Riverside, and the San Diego areas, where that area will have a much better chance for Rain or Snow above the 4500′ level. All of this will clear out by late this afternoon, or early evening, today. Behind the departing Low, High pressure will build into Utah and the Great Basin, turning our onshore flow to a strong offshore flow. The NWS has issued a HIGH WIND WARNING for all of SoCal from 9pm tonight through 2am Wednesday. (A detailed text can be seen on the WX ALERTS page) As High pressure builds over the Great Basin and the Winds increase, cold air advection will bring very cold temperatures to the area. For Tuesday and Wednesday, mostly clear skies, strong gusty winds, and cold temperatures will be the Forecast. Thursday and Friday will be a little warmer as the High pressure over the West begins to break down. Then another change is on it’s way. An area of Low pressure will move towards the West Coast Saturday. Along with that there is a good chance for a warm Tropical fetch of Moisture to mix with the Low (Atmospheric River-AR). Sunday and Monday we may see a good soaking system move through SoCal.RC

That’s it for today. Enjoy the long Holiday weekend and be safe! Don’t drink and drive. Thank you for joining me @ lakegregoryweather.com.

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-11*-1990, HIGH-59*-1980.

Yesterday’s High and Low temperatures were:
Crestline-57/33*, Twin Peaks-50/30*, N-Lake Arrowhead-61/32*, Running Springs-48/29*, Big Bear-53/30*, San Bernardino-69/52*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Mon-35-40*/22-29*, Tues-32-36*/23-29*, Wed-42-48*/28-35*.

Running Springs, Arrowbear:
Mon-32-38*/20-26*, Tues-30-36*/20-26*, Wed-36-42*/24-30*.

Big Bear, Green Valley Lake:
Mon-25-34*/12-18*, Tues-25-34*/12-18*, Wed-32-38*/24-29*.

San Bernardino:
Mon-55-60*/36-44*, Tues-55-60*/35-40*, Wed-58-63*/36-44*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Sunday, Dec 30, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

Good Morning
First. The NWS has issued a HIGH WIND WARNING FOR OUR AREA, MONDAY-PM THROUGH TUESDAY-PM Details on the WX Alerts page.
There have been a few changes to our Forecast for the next couple of days.
The surface pressure gradient from tonopah to the Coast have equalized so the winds will be absent for most of today. A Ridge of High pressure aloft @ 570dm will keep us under clear skies today with some warming in the mountains. Tomorrow morning a 540dm Trough of Low pressure will drop quickly into the Great Basin. This will spin off a strong short wave that will pass through SoCal tomorrow evening into Tuesday morning. Very cold air will accompany this Trough, but the arrival of the coldest air is the big question. As this Trough moves through the area, a Vort Max will give us a chance for a rain and or a snow shower along the Mountains and West from here. This is a very complicated course of events so pinning this down will be tough. As it looks this morning, we could see freezing levels lower to around the 3500′ level early New Years Day. So if we still have moisture we could see snow to that elevation. Fog and low clouds will accompany this system moving in around 3am Monday morning. Tuesday afternoon, this system will quickly move to Arizona as a Ridge of High pressure builds into the West.
This is when the High Wind Warning will go into effect. A strong pressure gradient is expected from Tonopah to the Coast which will give us winds from 20-60mph in the wind prone areas. So travel in high profile vehicles is not a good idea. Wednesday through Friday we should have warmer weather and mostly clear skies along with dying winds. Then another change may take shape. The Madden Julian Oscillation (MJO) is forecast to move into phase 6 around the 5th. If this does occur we could see a weak Sub Tropical flow of moisture into the SoCal region. Also at that time a Cold Trough is forecast to move into the West Coast of California, Jan5-8. So there is a chance for rain at that time. Then as the MJO moves into phase 7 from Jan-10-18, we could see a strong flow of Sub Tropical Moisture head directly into SoCal with the possibility of a good soaking rain with higher elevation snow. So as always, be prepared for changing weather conditions in the mountains. RC
That’s it for today. Enjoy the long Holiday weekend and be safe! Don’t drink and drive. Thank you for joining me @ lakegregoryweather.com.

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-11*-1990, HIGH-59*-1980.

Yesterday’s High and Low temperatures were:
Crestline-39-32*, Twin Peaks-36/31*, N-Lake Arrowhead-42/33*, Running Springs-39/34*, Big Bear-35/22*, San Bernardino-52/41*.

Forecast Temperatures for the next three days:

 

Crestline,Twin Peaks, Lake Arrowhead
Sun-48-54*/30-36*, Mon-35-40*/22-29*, Tues-28-36*/23-29*, Wed-40-48*/32-38*.

Running Springs, Arrowbear:
Sun-42-47*/25-32*, Mon-32-38*/20-26*, Tues-28-35*/20-26*, Wed-34-38*/24-30*.

Big Bear, Green Valley Lake:
Sun-38-45*/22-28*, Mon-25-34*/12-18*, Tues-25-34*/12-18*.

San Bernardino:
Sun-58-64*/40-48*, Mon-55-60*/36-44*, Tues-55-60*/35-40*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Saturday, Dec 29, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

Good Morning
First. The NWS has issued a WIND ADVISORY FOR OUR AREA THROUGH LATE THIS AFTERNOON.
Gusty North East winds are blowing across the mountain this morning. Peak gusts are ranging from 15-49mph locally. The Surface pressure Gradient is running around 7-8mbs from Tonopah to San Diego and will likely increase over the next several days with a few lulls in between. The winds should taper off later later today and tomorrow but will increase again Monday and Tuesday with a pressure gradient of close to 20mbs from the Great Basin to the South Coast. For New Years Day, very strong and gusty North East winds are expected. High pressure over the Pacific Ocean will expand toward the Great Basin during this period. This will keep our area free from any storms through early January. Cold air advection will arrive with the winds so daytime High temperatures will be running quite cool for the next five days, or so. Sunday looks like the warmest day of the next five as the winds take a short break. New Years Day will likely be the coldest. On the longer range outlook, it looks like we will see a pattern change around the 6th of January. The long range models show several systems working their way through the West from the 6th through the 18th. Of course this is a long way out so this will be worth watching as we get closer to that time frame. However, this may be the first of El Nino affected systems for SoCal. The ENSO 3.4 is expected to peak from late January through March with SST’s of 1.5*c warmer than normal. This will coincide with the peak of our Winter rainy season. So keep your fingers crossed for cold wet storms. So something to watch for. That’s it for today. Enjoy the long Holiday weekend and be safe! Don’t drink and drive. Thank you for joining me @ lakegregoryweather.com. RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-17*-1971, HIGH-68*-1980.

Yesterday’s High and Low temperatures were:
Crestline-35-28*, Twin Peaks-30/24*, N-Lake Arrowhead-36/25*, Running Springs-26/23*, Big Bear-25/10*, San Bernardino-55/46*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Sat-42-48*/29-35*, Sun-48-540*/28-35*, Mon-38-44*/24-30*, Tues-32-36*/23-29*.

Running Springs, Arrowbear:
Sat-26-34*/19-25-*, Sun-39-44*/22-28*, Mon-32-36*/17-25*.

Big Bear, Green Valley Lake:
Sat-28-35*/19-26*, Sun-35-40*/22-28*, Mon-28-34*/12-18*.

San Bernardino:
Sat-59-65*/40-45*, Sun-55-62*/40-48*, Mon-55-60*/36-44*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Friday, Dec 28, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

Good Morning
As expected, yesterday we had snow showers around the area. Big Bear had some accumulation, all other areas received just a dusting.
Today, another weak wave will pass through this afternoon but I don’t think we will see any snow from this one. We will see a few clouds passing over the area with only a slight chance for a snow shower today. Gusty North East winds will continue to blow across the mountains and passes through most of the weekend along with cold air advection from the Great Basin. This morning we have a 7mb spread from Tonopah to the Coast. This will increase through the next couple days as High pressure builds in the Great Basin bringing gusty NE winds to the area. A large area of High pressure ~800 miles to our West centered this morning off of the Oregon and California border, will expand later in the weekend helping to equalize the surface pressure from the GB to San Diego. Therefore slowing the offshore flow by Sunday. Temperatures will also be a concern due to the cold air advection. Daytime highs will run in the mid 20s to mid 30s above 6000′. Overnight lows will run in the teens to mid 20s for the same elevations. Crestline and Lake Arrowhead will be in the low to mid 30s during the day, and at night and in the mid 20s to mid 30s. Add the wind chill and it will feel very cold. Your outdoor pets and plants may need to come in as it will be too cold for then outside without warm shelter. For the longer range outlook, the weekend looks like we will have mostly clear skies through New Years. At this time, no rain is in the five day window for SoCal. For the crystal ball outlook, we may see a cut off Low develop off of SoCal around the 6th of January. Also there will be a chance for the Atmospheric River to enhance this system as the long awaited El Nino possibly begins to affect our SoCal weather. So something to watch for. That’s it for today. Enjoy the long Holiday weekend and be safe! Don’t drink and drive. Thank you for joining me @ lakegregoryweather.com. RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-15*-1948, HIGH-59*-1950.

Yesterday’s High and Low temperatures were:
Crestline-43-27*, Twin Peaks-40/23*, N-Lake Arrowhead-47/23*-.04″, Running Springs-39/20*-.01″, Big Bear/Shay Meadows-37/19*-Trace, San Bernardino-62/44*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Fri-32-38*/24-30*, Sat-38-45*/28-32*, Sun-45-50*/28-35*, Mon-43-50*/24-30*.

Running Springs, Arrowbear:
Fri-28-34*/22-28*, Sat-31-36*/19-25*, Sun-38-44*/22-28*.

Big Bear, Green Valley Lake:
Fri-25-32*/10-18*, Sat-28-35*/19-26*, Sun-35-40*/22-28*.

San Bernardino:
Fri-55-60*/35-40*, Sat-59-65*/40-45*, Sun-55-62*/40-48*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Thursday, Dec 27, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

Good Morning
This morning a quick moving weak Atmospheric wave will pass over SoCal. This will bring a slight chance for a snow shower to the local Mountains on it’s way through. The surface pressure in the Great Basin this morning is running at ~ 1014.5mbs while San Diego is at ~ 1016.0, this will result in a weak onshore flow this morning. As the area of Low pressure slides South along the East Pacific Ridge, High pressure will build into the Great Basin behind the departing Trough to around 1041mbs by Saturday. As the pressure builds to our North, the winds locally will switch to offshore. Cold air advection from the Great Basin, HIGH, along with strong and gusty winds from 10-40mph, will make for very cold temperatures locally through Saturday. The NWS has issued a Wind Advisory for our area from today at 10pm through Friday at 4pm. This may be extended as needed. Details are on the WX ALERTS Page. (Website) After the trough passes today, we will have mostly clear and cold weather through Sunday. The coldest day will be Friday when daytime highs are expected to be in the upper 20s-low 30s.
Thank you for joining me @ lakegregoryweather.com. RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-12*-1988, HIGH-61*-1950.

Yesterday’s High and Low temperatures were:
Crestline-43-28*, Twin Peaks-38/33*, N-Lake Arrowhead-46/36*, Running Springs-41/33*, Big Bear/Shay Meadows-44/19*, San Bernardino-64/43*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Thur-40-46*/24-28*, Fri-32-36*/22-27*, Sat-40-47*/25-32*, Sun-44-50*/28-35*..

Running Springs, Arrowbear:
Thur-35-39*/20-27*, Fri-25-31*/15-25*, Sat-33-37*/19-25*.

Big Bear, Green Valley Lake:
Thur-30-37*/10-15*, Fri-24-30*/10-18*, Sat-28-34*/19-26*.

San Bernardino:
Thur-60-65*/38-44*-Fri-55-60*/35-40*, Sat-55-60*/35-42*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Wednesday, Dec 26, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:

 
Good Morning
 
I hope you all had a nice Christmas Day. It was nice to see a little snow across the area and some always needed rain too.
Today the NE winds are blowing across the area. Gusts from 10-35mph as of 5am are blowing across all of the mountain. This is due to High pressure building into the Great Basin behind the departing Trough that went through there yesterday. These winds should calm down by tonight. An area of High pressure will build Offshore over the next several days giving us mostly clear skies locally. However, an inside slider will move onshore to our North in the PAC-NW tomorrow and slide South along the East side of the Sierras late Thursday and Friday. There will be a chance for a snow shower Friday along the Desert side slopes of the San Bernardino Mountains, Friday. Big Bear will be the most likely area affected. Behind that Trough, very cold Arctic air will follow. Temperatures for Friday will be hard pressed to get to the mid 30s as it looks this morning. Overnight lows will plummet into the tens and 20s for most areas, Big Bear could see single digit temps Thursday and Friday nights. NE winds will be likely for most of this time period to add a “wind chill” factor to the temperatures. Be sure to make necessary accommodations for you pets as it will be too cold to leave them outside. Looking Into the Crystal Ball forecast, the long range GFS Forecast model is showing what looks like our first EL NINO storm of the season to arrive between the 4th and the 6th of January. With another to follow mid month. So to wrap up the forecast, Cold, Windy with mostly clear skies through the rest of the work week.
Thank you for joining me @ lakegregoryweather.com. RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-12*-1948, HIGH-64*-1950.

Yesterday’s High and Low temperatures were:
Crestline-42/35*-.78″, Twin Peaks-35/30*, N-Lake Arrowhead-43/32*-.73″, Running Springs-35/27*, Big Bear/Shay Meadows-37/18*, San Bernardino-64/51*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Wed-45-51*/29-35*, Thur-40-46*/24-28*, Fri-33-37*/22-27*.

Running Springs, Arrowbear:
Wed-39-45*/24-32*, Thur-35-39*/20-27*, Fri-25-30*/15-25*.

Big Bear, Green Valley Lake:
Wed-35-40*/21-28*, Thur-30-36*/10-15*, Fri-24-30*/9-18*.

San Bernardino:
Wed-60-65*/38-44*, Thur-60-65*/38-44*-Fri-55-60*/35-40*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Tuesday, Dec 25, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:



Good Morning!


Merry Christmas to all! And a special Thank You, to all who helped support lakegregoryweather.com this last year!
A few lightening bolts and claps of Thunder rolled through early this morning as the cold front arrived to the area. Heavy rain and Hail accompanied that passing. More rain/snow will pass through this morning as the center of the Low arrives around 9am. We should clear out beginning early this afternoon. The coldest air will arrive with the center of the Low so snow levels will lower at that time to their lowest then.

WATCHES/WARNINGS/ADVISORIES…
CA…Winter Weather Advisory from 8 AM this morning to 6 PM PST this
evening for San Diego County Mountains.

Wind Advisory until noon PST today for San Diego County Deserts-
San Diego County Mountains-San Gorgonio Pass Near Banning.

Winter Weather Advisory until 2 PM PST this afternoon for
Riverside County Mountains-San Bernardino County Mountains.

Beach Hazards Statement from 6 AM PST this morning through this
evening for Orange County Coastal Areas-San Diego County
Coastal Areas.

Wind Advisory until 4 PM PST this afternoon for Orange County
Coastal Areas-San Diego County Coastal Areas-San Diego
County Valleys.

Merry Christmas and Thank you for joining me @ lakegregoryweather.com..RC
I will update the rest of this page later today. RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-10*-1948, HIGH-61*-1950.

Yesterday’s High and Low temperatures were:
Crestline-59/37*, Twin Peaks-55/39*, N-Lake Arrowhead-63/41*, Running Springs-53/41*, Big Bear/Shay Meadows-58/30*, San Bernardino-73/46*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Mon-52-58*/34-37*, Tues-34-39*/26-34*, Wed-45-51*/29-35*, Thur-40-46*/24-28*.

Running Springs, Arrowbear:
Mon-50-54*/29-33*, Tues-32-38*/24-28*, Wed-42-48*/25-32*.

Big Bear, Green Valley Lake:
Mon-45-52*/24-31*, Tues-28-34*/19-25*, Wed-35-40*/21-28*, Thur-30-36*/10-15*.

San Bernardino:
Mon-68-71*/44-49*, Tues-53-58*/40-48*, Wed-60-65*/38-44*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Monday, Dec 24, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:



Good Morning!


Merry Christmas to all! And a special Thank You, to all who helped support lakegregoryweather.com this last year!
Today we will have another nice day around the mountain. Mostly clear skies for today, with increasing gusty winds but the temps will remain in the lower to mid 50s for most areas. Overnight tonight, a deepening “Compact Low” will rapidly slide South along the West Coast. This will bring cold air with rain/snow to the local region early Tuesday (Christmas) morning beginning around 1am, and lasting through mid morning to early afternoon. The snow level will start out at around the 5500′ elevation then lowering to around the 4500-5000′ level by around 6-7am. A WINTER WEATHER ADVISORY, and A WIND ADVISORY, (advisories are listed under the “TODAY’S WEATHER” menu / US WX ALERTS PAGE of the website) will be in effect for the local area through Tuesday night. Winds gusting from 15-45mph will cause blowing snow and poor driving conditions on the local roads along with snow accumulations of 1-4″ possible across the Mountain areas. Not to mention Fog along the Rim developing late or early Tuesday morning. So if you are planning a trip, get it done today. As I mentioned, this is a “Compact Low” and will move through the area rapidly Tuesday. Wednesday through Friday will be mostly clear but continued cold temperatures. Then Friday and Saturday, a very cold air mass will move into the area with very cold temps for all areas. Overnight lows look like they will drop in to the single digits in the higher elevations and into the teens and 20s elsewhere. Daytime highs are expected to be in the upper 20s to low 30s for the weekend. Friday we may see a few snow showers toward the Big Bear area as a weak inside slider passes by the Interior West. This system for Christmas will have very little moisture to work with locally, so melted snowfall/rainfall amounts will run around .25-.35″. Have a good Day today, and enjoy the Christmas Holiday. I may be plowing snow Tomorrow so the updated forecast may be very late. Merry Christmas and Thank you for joining me @ lakegregoryweather.com..RC

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-10*-1948, HIGH-61*-1950.

Yesterday’s High and Low temperatures were:
Crestline-59/37*, Twin Peaks-55/39*, N-Lake Arrowhead-63/41*, Running Springs-53/41*, Big Bear/Shay Meadows-58/30*, San Bernardino-73/46*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Mon-52-58*/34-37*, Tues-34-39*/26-34*, Wed-45-51*/29-35*, Thur-40-46*/24-28*.

Running Springs, Arrowbear:
Mon-50-54*/29-33*, Tues-32-38*/24-28*, Wed-42-48*/25-32*.

Big Bear, Green Valley Lake:
Mon-45-52*/24-31*, Tues-28-34*/19-25*, Wed-35-40*/21-28*, Thur-30-36*/10-15*.

San Bernardino:
Mon-68-71*/44-49*, Tues-53-58*/40-48*, Wed-60-65*/38-44*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Sunday, Dec 23, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:


Today’s Local Weather Outlook, for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Here are some preliminary storm totals….
I.E and Orange Co…..0.02-0.15″
Santa Ana Mts………0.06-0.25″
San Bernardino Mts….0.25-0.45″ with 1-4″ of snow above 5500 FT.
SD Co Coast/Valleys…0.15-0.35″
Riv and SD Co Mts…..0.40-1.00″…Light snow on highest peaks. Welcome to Winter!


Today we will continue to be in a Zonal flow across the South West. High based clouds will pass overhead from decaying weather systems to our North passing through the flow. For today and most of Tomorrow, we will continue to with the same pattern across SoCal. Then for Monday night into Tuesday Morning, a compact Low will rapidly move South through California from the North, arriving here late Monday night or early Tuesday Morning. This system will bring strong gusty winds to the mountain areas with fog, and low freezing levels, early Christmas morning. As this system moves through the area, we can expect to see light to moderate snow across the mountain above the 5000′ level. This is a quick moving storm with limited available moisture however, it is a cold core area of low pressure so things could change rapidly as it moves through the area. With this system there will be a chance for convective activity which can rapidly change the dynamics and snowfall rates. So be sure to carry chains and a blanket in your car just in case, also, Ice on the local roads will be likely after the storm clears, so slow down when driving so you don’t end up in a ditch, or worse. As this system clears, cold air will remain in place locally with freezing temperatures expected through the weekend. Daytime highs will run from 35-45* with overnight lows in the teens to upper 20s across the area. There will be another chance for light snow on Friday as an inside slider passes through the West. Again with limited available moisture as it looks today. RC
That’s it for now. Thank you for joining me @ lakegregoryweather.com

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-6*-1990, HIGH-62*-1950.

Yesterday’s High and Low temperatures were:
Crestline-58/36*, Twin Peaks-55/41*, N-Lake Arrowhead-61/46*, Running Springs-54/44*, Big Bear/Shay Meadows-54/25*, San Bernardino-76/42*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Sun-54-60*/36-45*, Mon-52-58*/34-37*, Tues-32-39*/28-33*, Wed-44-49*/29-34*

Running Springs, Arrowbear:
Sun-50-55*/36-42*, Mon-50-54*/29-33*, Tues-29-34*/24-28*.

Big Bear, Green Valley Lake:
Sun-49-54*/25-32*, Mon-45-52*/24-31*, Tues-28-34*/19-25*.

San Bernardino:
Sun-68-73*/45-50*, Mon-68-71*/44-49*, tues-55-60*/38-44*.

Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
On another note, there is a new source for local news that can be found at, mountainreporter.com
If you are interested in buying a rain gauge or any other weather instruments, click on the Ambient weather graphic toward the bottom of this page (website) to access their website.

Saturday, Dec 22, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:


Today’s Local Weather Outlook, for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains.

Good Morning.

Here are some preliminary storm totals….

I.E and Orange County…0.10-0.25″
Santa Ana Mts…0.15-0.45″
San Bernardino Mts…0.25-0.75″ with some 3-5 inch snowfall possible above 5500 FT, 1-2″ above 4500′.
San Diego County Coast/Valleys…0.25 to 0.50″
Riverside and San Diego County Mts…0.40-1.25″ Snowfall confined to the highest peaks.
Deserts…Trace to 0.10
Welcome to Winter!
I’ve been intently studying the Models this morning, and it looks like after Monday, Winter will make a strong appearance locally.
Today through early Monday, we should see High clouds and partly cloudy skies as we will be in a mostly Zonal flow from the NW to the SE. Temperatures will remain as they have been for the last couple days, through Sunday. Monday will be a transitional day as a deepening area of Low pressure rapidly slides South along the West Coast. Increasing clouds with low clouds and fog will be likely by Monday evening, Christmas Eve. Early Christmas Day, we should see snow as low as the 4500′ level with little accumulation below the 5000′ level. Above the 5500 foot level, we could see from 1-3″ of snow, or more. Along with this storm, we will see strong gusty winds from 10-30mph with higher gusts in the wind prone areas, so blowing snow could be a problem in some of the higher areas. As mentioned, this is a quick moving system and should be through by early afternoon Christmas Day. Icy, and snow covered roads will be likely so make sure your car has chains as they will likely be required on all local roads at times for a day or two. Temperatures will not rebound as an Artic Blast of cold air will follow this system. As it looks this morning, we may see another shot at snow on Friday from what looks like a wetter system, and again on Sunday. So unless the Tropical Moisture moves North during this period, we could see some pretty good fresh snow at the Resorts for the Holidays! Skiing will be great! Back to the temperatures expected for next week, be sure to check outdoor faucets, plants and anything else that will freeze. Yesterday I spent most of my day studying El Nino. Things are starting to look like they are coming together. We may see out first El Nino charged storms begin in mid to late January. Currently it looks like a strong Asian Jet is possible for mid January. I will be watching this as we go. I will be updating the El nino page Sunday with more info on that.

Have a good day and weekend ahead!! RC
That’s it for now. Thank you for joining me @ lakegregoryweather.com

December’s average High and Low temperatures for this day:
HIGH-44*, LOW-29*. RECORD LOW-9*-1990, HIGH-61*-1950.

Yesterday’s High and Low temperatures were:
Crestline-62/36*, Twin Peaks-56/38*, N-Lake Arrowhead-62/42*, Running Springs-56/42*, Big Bear/Shay Meadows-57/27*, San Bernardino-73/47*.

Forecast Temperatures for the next three days:

Crestline,Twin Peaks, Lake Arrowhead
Sat-52-59*/36-44*, Sun-52-57*/36-45*, Mon-50-56*/30-35*, Tues-33-38*/26-31*

Running Springs, Arrowbear:
Sat-50-55*/35-41*, Sun-50-55*/32-38*, Mon-50-54*/29-33*.

Big Bear, Green Valley Lake:
Sat-53-58*/25-32*, Sun-49-54*/25-32*, Mon-45-52*/24-31*.

San Bernardino:
Sat-69-75*/49-54*, Sun-68-73*/45-50*, Mon-68-71*/44-49*.

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