Tuesday, July 31, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



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 again have a 20% chance for pop-up Thunder Storms to develop during the afternoon hours for the Crestline/Lake Arrowhead areas with daytime highs from the mid to upper 80s.
Big Bear, GVL, and Running Springs will have a 40% chance for T-Storms this afternoon with daytime highs from 78-85*. Periods of heavy rain could accompany any storms that may develop so the possibility of Flash Flooding as always will be possible. As always be aware of your surroundings during heavy rain events and seek higher ground. Tomorrow will likely be the end of the T-Storms for a few days as the Monsoon Moisture will slowly move East over the few days, so the threat of T-Storms will subside as well. Temperatures will return to normal for this time of year by Thursday through the weekend. The Marine layer will return to the coastal areas along with a stronger onshore flow as the Tropical Moisture moves East. Sunday, a trough of Low pressure will affect our area as it moves through the NW part of California. This will help to deepen the Marine layer and continue the cooling trend into early next week. Beyond that, it looks like a return of the Monsoonal Moisture will bring possible T-Storms to the area. RC

Yesterday’s High and Low temperatures were:
Crestline-87/68*, Twin Peaks-84/69*, Lake Arrowhead-92/64*, Running Springs-82/67*, Big Bear-82/57*, San Bernardino-99/75*.
Average local temps for today are: 57*-82* – MAX-94*(1980)-MIN-47*(1975)
Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:


 

 

 

 



 

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Monday, July 30, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



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 start the day with mostly clear skies. A broad area of Tropical Moisture is East of our area this morning, and should bring increasing clouds with T-Storms later today for the Big Bear area, and the North side of Arrowhead again today. Some of these storms may drift further West to Crestline this afternoon as well. Temperatures will be a little cooler again today as High pressure slowly weakens and we see more cloud cover today through Wednesday. PWAT levels are not as high as expected so rain showers will be less widespread as hoped for. RC

Yesterday’s High and Low temperatures were:
Crestline-88/69*, Twin Peaks-88/68*, Lake Arrowhead-89/65*, Running Springs-79/68*, Big Bear-82/55*, San Bernardino-101/71*.
Average local temps for today are: 57*-82* – MAX-95*(2000)-MIN-42*(1968)
Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:

Crestline, Twin Peaks, and Lake Arrowhead:                         Running Springs:                                                                  Big Bear:

 

 

 

 

 



 

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Sunday, July 29, 2018

 

TODAY’S LATEST SATELLITE PICTURES:

 


TODAY’S FORECAST GRAPHICS:



TODAY’S WEATHER DISCUSSION AND FORECAST:


Today’s Forecast for Crestline, Twin Peaks, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.

Tropical Moisture is currently moving into the SoCal Lower Desert and Mountain areas at the upper elevations of the atmosphere. There are also three waves of energy moving through the atmosphere that will pass through from the East to West over the next two to three days. Together this will help to increase the chances for Thunderstorm development this afternoon and evening across the area. Precipital water (PWAT) levels will go from 1.00″ over the Crestline area, to as much as 1.50″ or higher over Big Bear in the next couple of days.
As the PWAT increases and T-Storms develop through Tuesday or Wednesday, the chances for Flash Flooding will increase as well. So if you are out in the back country or in areas prone to Flash Flooding such as Deep Creek, Forest Falls, or Big Bear, be aware of your surroundings as things can rapidly change. Thunderstorms will be possible late tonight into tomorrow morning as wave #1 rolls through. The first two of the three of these waves look to be around 12 hours apart, then the next one in lagging behind that as of this morning, so tomorrow morning, afternoon, and Tuesday afternoon will be the best chances for T-Storms locally.
For today, temperatures will be cooler with highs in the 80-86* range for the Crestline and Lake Arrowhead areas. Overnight lows will be in the low to mid 60s.
Big Bear, Running Springs, and GVL will have highs in the upper 70s to low 80s today and overnight lows in the mid to upper 50s to low 60s.
All areas will have possible Thunderstorms this afternoon through Wednesday afternoon. Big Bear will have a 50% chance each day through Tuesday and 30% Wednesday. Light and variable winds can be expected except in areas where T-Storms develop where strong gusty winds will occur.
The area of High pressure over the West will slowly weaken and move a little North East in the coming days. Temperatures will be closer to normal for this time of year for the next five to seven days.
As for the Fire Danger level today, VERY HIGH to EXTREME in some areas. So please be careful! the fires to our North in Redding and the Lake Shasta area have been especially devastating. Hundreds of homes have burned, and sadly another Dozer operator has been killed fighting that fire, along with a Fireman, and a Grandmother with two grandchildren. Prayers for their families. RC

Yesterday’s High and Low temperatures were:
Crestline-92/70*, Twin Peaks-85/68*, Lake Arrowhead-94/66*, Running Springs-84/70*, Big Bear-86/52*, San Bernardino-99/71*.
Average local temps for today are: 57*-82* – MAX-95*(1995)-MIN-48*(2001)
Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:

Crestline, Twin Peaks, and Lake Arrowhead:                         Running Springs:                                                                  Big Bear:

 

 

 

 

 



 

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Saturday, July 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.
Good Morning.

We continue to be in a stagnant weather pattern across the West. Other than subtle changes, this will be the forecast for the next five days. We will see an increase in Thunderstorm activity again through Tuesday, but most of the action will be from Big Bear, East, toward the Colorado River. PWAT levels will increase from 1.0″ today to 1.5″ by Tuesday so any storms that do develop Sunday through Tuesday will likely contain rainshowers with them. Also remember, flash Flooding is always a possibility so be aware of your surroundings at all times especially during T-Storms. The High pressure area that has been stagnant over the West, will remain in place through the end of the work week ahead. Nighttime lows should begin to cool off more as the High weakens slightly, but daytime highs will continue to remain in the mid to upper 80s with a few areas in the low 90s through Thursday of next week. The exception will be if your area is affected by a thunderstorm, then you will see a nice reprieve from the heat, temporarily. Humidity levels are running very low this morning so please be careful out there with any fire, BBQ’s, Welding, etc. So now for the good news! It looks like we will finally break out of the heat next Friday as a long wave trough moves across the North West. This will upset the stationary High that has brought this long lasting heat wave to SoCal and push it East. This will be around the 3rd of August. Then it looks like we will see a change in the weather pattern and finally have a couple Hurricanes develop to the South of Baja. These storms are forecast on the ECMWF forecast model to move North along the West Coast of Baja bringing Tropical Moisture into SoCal from the 10th through the 20th of August including Thunderstorms with rain for our area. So keep your fingers crossed that this comes to fruition. Rain this time of year would greatly help to reduce the Fire Danger, for awhile anyway. As for the Fire Danger level today, VERY HIGH to EXTREME in some areas. So please be careful! the fires to our North in Redding and the Lake Shasta area have been especially devastating. Hundreds of homes have burned, and sadly another Dozer operator has been killed fighting that fire, along with a Fireman as well. Prayers for their families. RC

Yesterday’s High and Low temperatures were:
Crestline-93/66*, Twin Peaks-87/69*, Lake Arrowhead-91/68*, Running Springs-85/70*, Big Bear-88/50*, San Bernardino-103/69*.
Average local temps for today are: 57*-82* – MAX-96*(1995)-MIN-46*(1990)

Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
SAT-85-90*/62-66*, SUN-80-85*/60-65*, MON-82-86*/60-65* T/S 25%, Tues-85-90*/60-65*-T/S 25% .
Running Springs, GVL, and Big Bear:
SAT-82-88*/55-65*, SUN-79-86*/57-65*-30%T/S, MON-79-84*/52-62* 40%-T/S.
San Bernardino:
SAT-99-105*/65-70*, SUN-97-103*/65-70*, MON-97-102*/65-70* 10% T/S.
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
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Friday, July 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.

***THE EXCESSIVE HEAT WARNING IS STILL IN EFFECT FOR OUR AREA THROUGH TODAY @ 9PM.***
Today should be the last of the warmest days of this latest heat wave as High pressure now centered over SoCal will begin to weaken. Temperatures today, and through the weekend will still be very warm but will cool by a few degrees beginning tomorrow. We will continue to have a 10-20% chance for pop-up Thunderstorms mostly in the Deserts, and the Eastern side of Big Bear today. This weekends weather will be very nice for the mountains with temps in the mid to upper 80s along with less humidity and mostly clear skies. We may see drift smoke across the area as a South West flow aloft will likely bring smoke from the Cranston and Ribbon Fires into our area at times. Sunday afternoon as the area of High pressure relocates over Las Vegas, we will see an uptick in Monsoonal moisture that will bring an increase in Thunderstorm activity back into the local Mountains for Monday and Tuesday. Precipital Water (PWAT) levels will again increase across the area during that time frame increasing the chance for showers to accompany any T-Storms that do develop.
If you haven’t done your property clean up this is a good time to get that done as the fire activity that we have seen locally, and across the State is unparalleled. This is also a good time to get your evacuation kit together as this is again going to be a long Fire Season in California. RC

Yesterday’s High and Low temperatures were:
Crestline-93/66*, Twin Peaks-87/73*, Lake Arrowhead-97/61*, Running Springs-85/58*, Big Bear-87/53*, San Bernardino-102/72*.
Average local temps for today are: 57*-82* – MAX-95*(1995)-MIN-51*(1949)

Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
FRI-90-94*/62-67* SAT-86-92*/62-66* SUN-84-89*/60-65*.
Running Springs, GVL, and Big Bear:
FRI-83-88*/54-60* SAT-83-86*/53-57* SUN-80-84*/53-57*.
San Bernardino:
FRI-102-106*/70-75* SAT-100-105*/65-70* SUN-98-102*/65-70*.
Thank you for joining me @ lakegregoryweather.com, or on Facebook @ Lake Gregory Weather Group, Rim Weather, or, San Bernardino Mountains.
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Thursday, July 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.

***THE EXCESSIVE HEAT WARNING IS STILL IN EFFECT FOR OUR AREA THROUGH FRIDAY 9PM.***
Today we will continue to see very warm temperatures across all of the Inland SoCal region. Thunderstorms will be possible again over the Big Bear, and Green Valley Lake areas later today. Thunderstorms should become less likely for Friday and Saturday then pick up for Sunday through mid week, next week. High pressure will remain at around the 596dm today then slowly weaken Friday and Saturday as it relocates a little North from where it is now. As it does, the circulation around the High will become more favorable for Monsoonal moisture to return to the SoCal Mountains and Desert areas Sunday through early next week. PWAT levels will increase during that time period which will also increase the chances for heavy downpours to accompany any T-Storms that do develop. Temperatures will begin to slowly cool beginning tomorrow but will remain above normal for this time of year for the next five days. The humidity levels should dry out for a couple days before the next round of Monson Moisture returns Sunday. RC

Yesterday’s High and Low temperatures were:
Crestline-95/69*, Twin Peaks-91/73*, Lake Arrowhead-100/67*, Running Springs-89/72*, Big Bear-86/54*, San Bernardino-106/75*.
Average local temps for today are: 57*-82* – MAX-94*(1998)-MIN-49*(1949)

Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
THUR-88-94*/65-70* FRI-87-93*/62-67* SAT-87-93*/63-68* SUN-86-90*/63-67*.
Running Springs, GVL, and Big Bear:
THUR-84-89*/56-63* FRI-83-88*/54-60* SAT-83-86*/53-57* SUN-80-84*/53-57*.
San Bernardino:
THUR-100-105*/72-78* FRI-102-106*/70-75* SAT-100-105*/65-70* SUN-98-102*/65-70*.
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
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Wednesday, July 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.

***THE EXCESSIVE HEAT WARNING IS STILL IN EFFECT FOR OUR AREA THROUGH FRIDAY AM.***
Not much change from the last few days in the weather as High pressure remains the dominate feature across SoCal. High pressure @598dm will strengthen a little more today and slowly move toward the AZ/CA border area. Temperatures will be pretty close to what we had yesterday with highs reaching into the upper 90s locally, and into the mid to upper 80s for Big Bear, Running Springs, and Green Valley Lake. A couple of pop up T-Storms developed late in the day on the East side of Big Bear, with dry lightning that started a Brush Fire near Onyx Summit. Which was quickly extinguished at around 1/4 acre. Today there will also be a chance for more pop-up T-Storms during the afternoon hours across the mountain and Deserts. It looks like we will see a little more humidity today which will make things a little sticky. Mostly clear skies with light and variable winds with afternoon clouds will the days forecast. The area of High pressure will slowly weaken as we head in to the weekend. There will be an increase possibility of Thunder Storms for the weekend as Monsoonal Moisture will be drawn back into the area as the area of High pressure shrinks. Temperatures will cool a little each day beginning Friday with highs in the upper 80s expected for the upcoming weekend. Don’t forget about you pets as they need extra water and shade. Also DO NOT LEAVE YOUR KIDS OR PETS IN AN UNATTENDED VEHICLE. RC

Yesterday’s High and Low temperatures were:
Crestline-98/66*, Twin Peaks-98/70*, Lake Arrowhead-99/63*, Running Springs-87/72*, Big Bear-86/56*, San Bernardino-106/76*.
Average local temps for today are: 56*-82* – MAX-94*(2000)-MIN-42*(1977)

Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
WED-93-98*/66-70* THUR-88-94*/65-70 FRI-94-92*/62-67* SAT-84-90*/63-68*.
Running Springs, GVL, and Big Bear:
WED-85-90*/56-62* THUR-86-90*/56-63* FRI-83-88*/54-60*.
San Bernardino:
WED-106-110*/72-78* THUR-100-105*/72-78* FRI-102-105*/70-75*
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
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Tuesday, July 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.

Today we will see temperatures peak a little higher than Monday’s. A few clouds will build over the ridges locally today with a slight chance for a pop up T-Storm this afternoon. Winds today will be light and variable. Last night as I was heading home on the 14 FWY, as I drove through Santa Clarita around 8pm the outside temp was 101*. That’s HOT! Today High pressure will continue to build over the West to around 596-600dm. As the high builds so will the temperatures. Todays daytime highs are expected to reach the mid 90s across much of the local area, Big Bear will be a little cooler with highs expected to be around 85*. High pressure will slowly slide West over the next two days becoming centered over the CA/AZ border by Thursday. Friday the High will begin to weaken so we will see slightly cooler temperatures after that. However, the area of High pressure will still remain mostly stationary through the first of August at around 592-594dm so you can see the cooling trend will be only a few degrees through the period. Fortunately the humidity will be around the 20-35% range which will help with dealing with the heat. Next weekend, Tropical Moisture is expected to return to the area with an increasing chance for Thunderstorms locally along with higher humidity levels. The NWS has issued an EXCESSIVE HEAT ADVISORY that goes into effect through Thursday at 8pm. Don’t forget about you pets as they need extra water and shade. Also DO NOT LEAVE YOUR KIDS OR PETS IN AN UNATTENDED VEHICLE. RC

Yesterday’s High and Low temperatures were:
Crestline-95/65*, Twin Peaks-89/70*, Lake Arrowhead-97/60*, Running Springs-87/71*, Big Bear-84/53*, San Bernardino-106/75*.
Average local temps for today are: 56*-82* – MAX-95*(2000)-MIN-42*(1957)

Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
Tues-93-98*/65-70* WED-93-98*/65-72* THUR-88-95*.
Running Springs, GVL, and Big Bear:
TUES-85-92*/53-60* WED-85-90*/56-62* THUR-86-93*/56-63*
San Bernardino:
TUES-105-110*/72-78* WED-17-114*/72-78* THUR-104-109*/72-78*
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
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Monday, July 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.

High pressure is starting to build in to the area this morning. As a result, temperatures will be on the rise for the next several days. This afternoon there will be a chance for high based T-Storms along the mountains as a weak atmospheric wave passes through. This could produce dry lightning but not much rain as it looks this morning. As always this time of year if you are out in the backcountry, you need to keep an eye out for changing weather conditions. The big change will be daytime high temperatures. For the mountain areas, temperatures will peak Wednesday and Thursday in the 90s locally. The Valley will see temperatures climb into the 105-110* range by Thursday before things start cooling off. Slowly. We will continue to have a weak chance for Thunderstorms through the period. On the seven day outlook Monsoonal Moisture will return around Sunday so the slightly cooler temperatures will have added humidity. Not much going on in the Tropics on the West or East Coast at this time. Have a good day. The NWS has issued an EXCESSIVE HEAT ADVISORY that goes into effect today through Thursday. Don’t forget about you pets as they need extra water and shade. Also DO NOT LEAVE YOUR KIDS OR PETS IN AN UNATTENDED VEHICLE. RC

Yesterday’s High and Low temperatures were:
Crestline-88/62*, Twin Peaks-83/63*, Lake Arrowhead-91/58*, Running Springs-82/67*, Big Bear-82/51*, San Bernardino-98/73*.
Average local temps for today are: 56*-82* – MAX-94*(2000)-MIN-45*(1957).
Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
MON-88-93*/63-68* Tues-90-95*/63-68* WED-92-98*/60-68* 10% chance for T-Storms.
Running Springs, GVL, and Big Bear:
MON-80-85*/63-67* TUES-83-86*/57-64* WED-85-88*/59-65*
San Bernardino:
MON-100-105*/74-77* TUES-105-108*/72-78* WED-105-110*/72-78*

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
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Sunday, July 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.

Today we will start the day with clear skies, then we may see a few clouds possible this afternoon. The Monsoonal Moisture has shifted East and should stay there through the work week ahead. Yesterday there were a couple T-Storms around the area but due to the high cloud cover blocking the heat from the Sun, nothing really got going. Today High pressure will expand across all of the Southwest and strengthen through the work week ahead. Temperatures will warm each day through Thursday with Wednesday and Thursday looking like the hottest days of the next five. Locally, temperatures will peaks around the low to mid 90s. San Bernardino and the Desert areas will see temperatures from 105-110* by Thursday. The good thing is that the humidity levels are already dropping so that will help some. High pressure will peak at the 500mb level at 597-598dm Wednesday and Thursday and be centered over SoCAL and Arizona. The by Friday the high will begin to weaken and a cooling trend will begin across SoCal. We also may see a return of a chance for Thunderstorms over next weekend as Tropical moisture once again returns. Currently across the Mountain region we have a weak NE flow helping to dry the air. The FIRE DANGER levels may reach the Extreme levels for a short period later in the week so as always, please be careful and report any unusual activity in the forested areas. The NWS has issued an EXCESSIVE HEAT ADVISORY that goes into effect tomorrow through Thursday. Don’t forget about you pets as they need extra water and shade. Also DO NOT LEAVE YOUR KIDS OR PETS IN AN UNATTENDED VEHICLE. RC

Yesterday’s High and Low temperatures were:
Crestline-83/62*, Twin Peaks-77/63*, Lake Arrowhead-81/57*, Running Springs-75/62*, Big Bear-77/50*, San Bernardino-98/65*.
Average local temps for today are: 56*-82* – MAX-9*(2000)-MIN-43*(1987).
Record High in July-100* 1972. Record Low-40* 1982.
Forecast Temperatures for the area Today and overnight:
Crestline, Twin Peaks, and Lake Arrowhead:
SUN-82-85*/62-68* MON-85-90*/60-65* Tues-90-95*/65-70* WED-92-97*
Running Springs, GVL, and Big Bear:
SUN-75-80*/50-60* MON-80-85*/57-65* TUES-82-88*/56-62* WED-83-88*/56-65*
San Bernardino:
SUN-98-103*/70-74* MON-100-105*/74-77* TUES-105-108*/72-78* WED-105-109*/72-78*

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, their website will come up. +