Monday, April 30, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
04/30/2018.
Good Morning.
As we close out April, and welcome May, Rain, and maybe Snow is in the forecast.
This morning there is fog from around the 3500-6000′ level. So plan a little extra time if you are heading out on the local HWY’s and By-ways. An area of Low pressure will slowly move South along the West Coast today. This will bring a chance for rain showers late this afternoon into the evening. Rain will be light with a chance for snow showers down to the 5800′ level at times through Wednesday. We will be at the bottom of a Long Wave Trough that will hang around through Wednesday. This will continue to give us periods of showers through that time. Tuesday and Wednesday morning will be the best chances for rain, and snow showers as low as the 5500′ level. Rain fall amounts are forecast to be from .50-1.00″ for the local area with the upslope areas receiving the greatest amounts. Snowfall amounts for the areas above the 6000′ level are from 1-3″. We will have a short period of temperatures cold enough to produce the lower snow levels Tuesday into Wednesday morning. The freezing levels will vary from 7,000′ to ~6,000′. The ground temperatures are warm, so what does fall in the way of snow should melt quickly. Along with the rain/snow, there will be a possibility of a few Thunder Storms as the system passes through the area. If the T-Storms should develop, periods of heavy Rain or Snowfall/Hail could occur. Gusty SW winds from 5-20mph can be expected locally. Thursday, a warming trend will move into the SoCal region with temperatures in the upper 80s to low 90s for the Valley by Saturday.
That’s it for today. More on this tomorrow. Have a great Day, and enjoy the interesting Mountain Weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 52-58*/35-40*
Running Springs, GVL, and Big Bear: 47-54*/28-34*
San Bernardino: 68-74*/48-55*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory weather group, Rim Weather, or, San Bernardino Mountains.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Sunday, April 29, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
04/28/2018.
Good Morning.
The Forecast for the next several days, is quite complicated. Today, an area of Low pressure that has been sitting off of the Northern California Coast has moved into the Great Basin. This Low will remain stationary over the Idaho, Utah, and Nevada today. Then, a compact Low will develop offshore of Washington State Monday. This system will merge with the system over Idaho Monday. As this transition develops, the combined system will elongate toward SoCal spreading rain and snow along it’s path. Today as this pattern develops, the first of several waves will pass through SoCal, mid level moisture has moved from the San Diego area into the Inland Empire producing fog and low clouds all the way to our local Mountains below the 5500′ level. Locally, we should see some partial clearing today for the Crestline and Arrowhead areas. Big Bear, Running Springs, Arrowbear, and Green Valley Lake are all above the moisture and have humidity levels in the low 20s, while Sky Forest, Crestline, and the surrounding area have humidity levels around the 90% and above. This is due to a temperature inversion at ~6000′ level and a fairly strong onshore surface pressure gradient of ~7.5mbs from San Diego to Tonopah. Later this evening, the Moisture will deepen across the area as the second wave moves closer to the area. Fog and low clouds will thicken by Monday morning, so expect to have a foggy commute in the morning. Gusty winds will be likely through the period from the South West. A WIND ADVISORY is in effect for the local area through 4am Monday. For gusty SW winds 10-25mph.
Now is when things get tricky. As the area of Low pressure moves into SoCal, Thunderstorms, Rain, with Snow possible above the 5500′ level at times, will be the Forecast through Wednesday Morning. Rainfall totals are expected to be in the .50-1.00″ range, and snowfall amounts at the higher elevations (~6000’+) is expected to range from 1-3″ possible through Wednesday morning. Here is where the models break down, the Compact Low that will merge with the other system Monday, is looking like it will separate once again and set up off of Baja California Thursday. If this happens, we could see Tropical Moisture feed into SoCal for the latter part of the week. This could mean more warm showers and the possibility of T-Storms local especially in the Big Bear area. So overall, it looks like May will come in strong. That’s it for today. More on this tomorrow. Have a great Day, and enjoy the interesting Mountain Weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 50-56*/ 34-40*
Running Springs, GVL, and Big Bear: 50-59*/30-35*
San Bernardino: 70-75*/48-55*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory weather group, Rim Weather, or, San Bernardino Mountains.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Saturday, April 28, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
04/28/2018.
Good Morning.
Today we will have another nice day across the mountains. Clear skies today with cooler temperatures will be the forecast. Light Fog and Haze will stay in the Valley today. The weather pattern across the Country, and locally, has changed to a more typical Spring like pattern. The first of several weak waves will pass through the area tonight. This along with a Catalina Eddy will help to deepen, and push the Marine layer further Inland tonight, and tomorrow morning. A 552mb area of Low pressure will come onshore along the Coast of Oregon today. This system will remain mostly stationary over Oregon, and NorCal today through Sunday morning. As this system moves South Sunday night, the Marine layer will deepen locally to the 5000′ level by Sunday evening. We will also have gusty winds from 10-35mph at times through Monday. The Marine layer should deepen sufficiently to affect the Monday morning commute with fog possible to the 6000′ level.
Monday and Tuesday a slow moving long wave trough will develop bringing a chance for rain to SoCal through Wednesday morning. Thunderstorms will be a possibility Tuesday with lowering snow levels to around the 6500-7000′ level as well. The current moisture accumulation expected is from .25-.75″ for the San Bernardino Mountains. Snow accumulations above the 6500′ level are for 1-4″ possible. If Thunderstorms do develop, both of those amounts can increase in the affected areas. These type of systems are typical of this time of year. Cut Off Lows that form into short and long wave troughs over the West can change dynamics quickly making forecasting this time of year even more challenging. Also as they move from West to East, they can cause severe weather in the mid West with Tornados and strong Thunderstorms. RC

Have a good day and enjoy the nice Mountain weather. RC
Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 56-64*/ 40-45*
Running Springs, GVL, and Big Bear: 55-63*/34-40*
San Bernardino: 72-78*/51-57*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory weather group, Rim Weather, or, San Bernardino Mountains.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Friday, April 27, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning. 04/27/2018.
Today we will be in a divergent weather pattern across all of SoCal. Clear skies with the exception of the Valley will be the days forecast. For the Valley, fog has rolled in to the 3000′ level this morning. Currently, we are under a Ridge of High pressure that will move East later today. To our North, an area of Low pressure will move onshore with showers from NorCal, North. Yesterday, Thunderstorms developed along the Sierras from Reno, North. They may develop again later today as well. Here, as the Low moves onshore to our North, the Marine layer will deepen locally each day, with fog and low clouds to the 5000′ level by Sunday morning. Temperatures will cool each day through the middle of next week as a couple weak waves of vorticity move through SoCal. As the first of several areas of low pressure, move into the Great Basin, onshore flow will strengthen with gusty winds developing later tonight. By Sunday, the winds may be strong enough to warrant a strong wind advisory from the NWS for the SoCal mountains. On the longer range outlook, Rain, and the possibility of 1-3″ of snow at the higher elevations will be likely for Tuesday through Wednesday morning of next week. Then a slow warm up is expected as we head into the first weekend in May.
Have a good day and enjoy the nice Mountain weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 59-64*/ 36-42*
Running Springs, GVL, and Big Bear: 62-67*/34-40*
San Bernardino: 75-80*/52-56*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory weather group, Rim Weather, or, San Bernardino Mountains.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Thursday, April 26, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning. 04/26/2018.
High clouds will drift across the area today as the Sub Tropical jet moves close to SoCal. To the North, an area of Low pressure will slowly move onshore bringing a chance for rain for the Northern part of the State. For our area, temperatures will be a little cooler again today, that trend will continue through the weekend. As the area of Low pressure moves onshore to our North, we will see a deepening Marine layer over the next few days along with gusty South West winds. By Saturday and Sunday, fog and low clouds will filter into the IE to around the 4000-5000′ level during the morning hours and will be slow to clear for the afternoon hours. For next week, we will have a chance for a shower late Monday and Tuesday, as a cut off Low looks like it will move through SoCal at that time. The weekend daytime high temperatures are expected to be from the mid 50s to low 60s. This may be a good time to get a jump on the June 1st weed abatement due to the cool temperatures.
Have a good day and enjoy the nice Mountain weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 64-71*/42-48*
Running Springs, GVL, and Big Bear: 61-68*/34-40*
San Bernardino: 80-84*/52-56*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Wednesday, April 25, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning. 04/25/2018.
An upper level area of Low pressure to our North continues to sit offshore this morning. Thursday the low should begin to move onshore in N-Cal and Oregon. This will not have an immediate effect of SoCal other than increasing winds from the South West. As that system moves through the North West, temperatures will cool locally and gusty SW winds will develop especially on the ridges and wind prone areas. The marine layer will deepen for the weekend with fog and low clouds likely in the Valley and up against the foothills locally.
Today, A few High clouds will pass through but we will continue to have mostly clear skies overall. Temperatures today will be a little cooler by a couple of degrees over yesterdays high temperatures. For the weekend, continued cooling across the area with some mid level clouds moving through behind the departing Low to our North. Monday, another cut off Low will develop offshore of Northern California. This is forecast to move further South bringing increasing clouds and drizzle for SoCal. At this time, it doesn’t look like we will see any measurable precipitation from this system, but it’s not out of the equation. RC
Have a good day and enjoy the nice Mountain weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 68-74*/44-48*
Running Springs, GVL, and Big Bear: 65-70*/34-42*
San Bernardino: 84-88*/54-59*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Tuesday, April 24, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning. 04/24/2018.
Today we will have another nice day weatherwise around the Mountain. Temperatures will be very close to yesterday’s with highs in the low to mid 70s and overnight lows from 45-54* below the 6000′ level. For Big Bear, Running Springs, and GVL, temperatures will be a little cooler ranging from the upper 60s to 70* during the day to the mid to upper 30s to the low 40s in RS overnight. We will have mostly clear skies today with only a few high clouds from a system passing to the South of our area. This will be the pattern through Thursday. Friday, an area of Low pressure will move onshore in NorCal. This will bring an increase in onshore flow to SoCal with a deepening Marine layer Friday and Saturday. We may see fog up against the Mountain front country on those days. Temperatures will be cooler as well. At this time there is a very low possibility of any showers from this system. Another area of Low pressure will be just behind that one for Monday. This is showing signs of bringing showers to the local area. So don’t put away those Winter items just yet. There will be several systems that may bring wet weather to the area through the first week of May. The weather patterns are changing to a more typical pattern now. Spring has finally sprung! Have a good day and enjoy the nice Mountain weather. RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 70-75*/46-54*
Running Springs, GVL, and Big Bear: 66-72*/33-42*
San Bernardino: 85-92*/56-62*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Monday, April 23, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning.
04/23/2018.
Today through Thursday, we will be in a very nice weather pattern for the Mountain areas. Winds will be light and mostly from the South West during the day from 5-10mph. A few High clouds will pass over but that’s about it. Temperatures will be very close to what we had yesterday through the work week ahead with only slight cooling through the week. An area of Low pressure will slowly make it’s way onshore to our North Thursday, but all we will see here in an increase in the onshore flow along with a deeper Marine layer. This morning, Fog has moved onshore along the immediate Coastal areas from Mexico to Point Conception. The Marine layer may push Inland to the Western Riverside area by early morning, due to a Coastal Eddy. So overall, the weather for the next several days will be quite nice for the Mountains. On the long range outlook, there may be a chance for rain around the end of the month as the long range weather forecasts show an area of low pressure heading directly into SoCal at that time. That’s it for now.
Have a good day! RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 69-76*/46-54*
Running Springs, GVL, and Big Bear: 66-72*/33-42*
San Bernardino: 85-92*/56-62*
On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.
At the bottom of this page, I have added two pictures, of a suggested rain gauge, and a weather station. If you click on the Ambient weather graphic, their website will come up.

Sunday, April 22, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning.
Yesterday’s Mountain Weather will be hard to beat, but today will be very close. A weak low pressure area to our South has pushed High Clouds over most of SoCal for the last 24hours. This disturbance will slowly move East through Northern Baja, and SoCal today, taking the High clouds with it. A Ridge of High pressure will build to around 1020mbs over most of California for the next few days, so we will continue to have very nice weather through around Thursday. Temperatures will slowly cool as we head into the work week ahead, but will remain in the upper 60s to low 70s locally during the day. South West winds will bring a deepening Marine layer onshore Monday and Tuesday along the Coastal areas, but I don’t expect it to make into the San Bernardino Valley. During the early evening hours, gusty SW winds from 5-15mph will be likely across the area.
Toward the end of the work week, a Cut Off Low will make it’s way South along the California Coast. As it looks this morning, we could see some rain on Friday, and or Saturday, from this system. However, this is a long way out to forecast a Cut Off Low. Just a heads up on what may be coming weatherwise next weekend.
Locally, a couple of High Temperatures from around the area were, 81* at the Valley of the Moon in Crestline, and 80* in Cedar Pines Park. San Bernardino reached 88*, and Big Bear had 64* for their daytime high temperature. Have a good day! RC

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 70-77*/48-55*
Running Springs, GVL, and Big Bear: 65-72*/40-45*
San Bernardino: 85-92*/56-62*

On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.

At the bottom of this page, I have added two pictures, and two videos, for a suggested rain gauge, and weather station, as well as videos on how to set them up properly.

Saturday, April 21, 2018

 

TODAY’S LATEST SATELLITE PICTURES:


TODAY’S WEATHER DISCUSSION AND FORECAST:



Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains:
Good Morning.
Today we will have the best weather in the Mountains we have seen so far this year! High pressure will be the dominate feature in our weather for the next several days. Warm temperatures and clear skies will be the Forecast.
Temperatures will be in the mid to upper 60s and maybe a few areas into the low 70s. A cut off Low is moving through to our south today. We may see a few high clouds from that. Tomorrow will be about the same as today. Winds across the area will be light and variable as heating and cooling in Desert areas will control the airflow locally. Another cut off Low will affect SoCal later in the week, but as it looks this morning, it will not have much effect on us here. San Bernardino will be very warm this weekend with highs in the upper 80s to low 90s. Summer, here we come. Have a good day! RC
LOCAL TEMPERATURES:

Temperatures around the area for Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead: 65-70*/43-48*
Running Springs, GVL, and Big Bear: 60-65*/38-44*
San Bernardino: 85-90*/55-60*

On another note, there is a new source for local news that can be found at, mountainreporter.com
Thank you for joining me @ lakegregoryweather.com , Rim Weather, San Bernardino Mountains, and or lake Gregory weather group.

At the bottom of this page, I have added two pictures, and two videos, for a suggested rain gauge, and weather station, as well as videos on how to set them up properly.