Thursday, November 30, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Not much change in the weather pattern for the next several days other than a inside slider late in the weekend. Light and variable winds with high clouds and cool temps is the forecast for today. The Polar Jet will remain to the North and the Sub Tropical Jet to our South. Here, we will be in the middle in a Zonal flow. High pressure will continue to dominate the SoCal weather pattern and doesn’t look like it will change soon. The Northern Hemispheric pattern shows a blocking pattern setting up over the Northeastern Part of Canada which will keep the storm track well to our North. Cold air will drop South from Canada into the mid western part of the Country and the Great Lakes region bringing cold and Wintery weather there. Here, a long wave Ridge of High pressure along the West Coast will be the focus for the next five to ten days, or more. This will keep us in a boring weather pattern with cool daytime temps and lots of high clouds. Temperatures around the area today will be in the mid to upper 50s across the mountain. Overnight lows will be in the 20s to 30s as well. For the Valley, Highs today will be in the mid to upper 70s with overnight lows in the upper 40s to low 50s. That’s about it for today Have a good day and enjoy the nice Mountain Weather. Thank You for joining me @ lakegregoryweather.com *RC

Wednesday, November 29, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Clear and cool will be the weather outlook for the next five days. A cut off low will continue to help spread high clouds across the sky making for nice morning and evening pictures. A NE flow across SoCal will keep us clear of fog, and clouds, through the weekend. Temperatures will remain cool with highs in the upper 50s to low 60s for the Crestline and Lake Arrowhead areas. Overnight Lows will be in the 30s for most areas. Big Bear, Green Valley Lake, and Running Springs, will have temps in the 50s during the day and in the upper 20s to low 30s at night. All areas will be subject to gusty NE winds over the next few days. There will be weather to our North over the next few days with rain and snow to some areas of NorCal. However, here we will remain dry with a zonal flow aloft. The weather that was forecast for Sunday and Monday has been replaced by La Nada for the SoCal region. On the long range outlook this morning, nothing is on the horizon through the middle of December. Of course this is just an outlook, but as long as we have High pressure blocking everything to the North, we will get nothing here. Thank You for joining me @ lakegregoryweather.com *RC

Tuesday, November 28, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
As expected, we had fog and low clouds yesterday with light precipitation in most areas followed by very gusty NE winds. For today, clear skies with decreasing winds along with slightly warmer temperatures will be the forecast for the day. Currently as of 5am, winds in the local canyons and along the ridges are blowing pretty good with gusts to 46mph at Playground drive W/S, and Waterman Canyon is showing winds from 15-34mph. So be careful if you are driving down the hill this morning. Rocks and debris may be on the road. Daytime high temperatures today will be from 55-62* across the area with overnight lows falling to the mid 30s for Crestline, Lake Arrowhead and Twin Peaks. Running Springs, Green Valley Lake, and Big Bear, will be a little cooler with lows in the 20s to low 30s. High pressure will build into SoCal over the next few days with warmer overall temperatures. This will be the forecast through Saturday. Then things get iffy. As it looks this morning, Sunday through Tuesday we will have a chance for stormy weather. The freezing level is expected to remain above the 7500′ level so snow will only be on the highest areas. I’m not totally buying the Weekend forecast, but that’s what they say at this time. As we get closer to the weekend I’m sure there will be lots of changes to that forecast. But for now, it looks like nice weather through Friday. One other item, a cut off Low will pass by SoCal just off shore Wednesday, so we may see an increase in high clouds making for a nice picturesque Sunset Wednesday evening. Today in San Bernardino, High temps will be in the mid 70s with decreasing winds. Fortunately, with the precipitation we just had, the humidity levels are in pretty good shape to keep the fire danger levels down. Have a good day and look for daily updates on the weather here. Thank You for joining me @ lakegregoryweather.com *RC

Monday, November 27, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Fog and low clouds have moved into the area early this morning. Strong gusty winds are blowing in most areas as well. The NWS has issued a WIND ADVISORY for gusty winds for our area through tonight. This morning the tail end of a weak trough will pass through SoCal. This will bring clouds and fog to the local area and a chance for light precipitation for the morning, affecting the commute off the hill on HWYS 330 and 18. Clearing will begin by noon today and fairly strong NE (Santa Ana) winds will develop by this afternoon behind the departing trough. High pressure will set up in the Great Basin for Tuesday and Wednesday keeping the NE winds in our local forecast. A cut off low will pass along the Coastal areas Wednesday ending the NE winds and a return to a onshore flow. The next weather maker for SoCal will come Saturday and or Sunday. Again, we will be on the bottom of the trough for this system so the strength of this system is not looking to be much for our area other than clouds, fog, and some light precipitation. This will be a cold system so temperatures will be quite cool next weekend as it looks today. Today’s high temperatures will be cool as well with highs in the mid to upper 40s with a few areas in the 50s today. Overnight as the NE winds blow in cold air from the north, lows will be in the 20s and 30s across the Mountain. Tomorrow will be a little warmer with highs in the mid 50s and maybe a few areas in the low 60s. San Bernardino will have high temps around the mid to upper 60s today and in the low to mid 70s Tuesday and Wednesday. Also on the long range global patterns, a long wave troughing pattern is looking like a possibility along the West Coast for the first ten days of December. So this could mean the storm track will be in a favorable position for SoCal to see a wet pattern during that time frame. Thank You for joining me @ lakegregoryweather.com *RC

Sunday, November 26, 2017

 

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Accum precip 2day ttls


Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
A nice colorful Sunrise over the mountain this morning made for a nice start to the day. Temperatures overnight were pretty mild except Big Bear where the overnight low was in the low 30s. Around the Crestline, Twin Peaks and Lake Arrowhead areas overnight temps were in the mid 50s to around 60*. Today, we will have daytime temperatures in the low 70s for most areas below 6000′ and in the upper 60s in the communities above that. Later today, a trough of low pressure will begin to affect SoCal with increasing clouds overnight and drizzle, fog along with a chance for a quick shower early tomorrow morning. South West Winds will also pick up today with gusts from 5-15mph locally. The Marine layer this morning is hanging close to the Coastal areas. Overnight tonight it will push Inland to the foothills and possibly up to the 4500′ level against the local mountains by tomorrow morning as the trough comes through. This may impact driving on the local HWYS 18 and 330 for the morning commute. On this mornings 48 hour RAP precipitation forecast, it shows the rain dissipating rapidly as it moves south toward our area. So I don’t expect to see much moisture from this weak system as it passes through. Skies will begin to clear out by the afternoon and a return of gusty NE winds will follow the departing trough. High pressure will set up in the Great Basin tomorrow and help to push cold air toward SoCal. This will keep our local daytime temperatures in the upper 40s to low 50s Monday, and in the mid to upper 50s Tuesday, and Wednesday. Nighttime temperatures will cool off into the 30s for Crestline, and Lake Arrowhead, while Big Bear, Green Valley Lake, and Running Springs will be in the upper 20s to low 30s. On the longer range outlook, the next chance for a storm will arrive over the weekend of December 2nd. This system has the potential to be cold enough to bring snow to the local Ski Resorts, if it does materialize. Also on the long range global patterns, a long wave troughing pattern is looking like a possibility along the West Coast for the first ten days of December. So this could mean the storm track will be in a favorable position for SoCal to see a wet pattern during that time frame. Thank You for joining me @ lakegregoryweather.com *RC

Saturday, November 25, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Today High pressure to our West is still keeping daytime High temperatures above normal across the Mountain region of SoCal. This will end today. As the High to our West weakens, an area of Low pressure will slide South along the West Coast over the next couple of days. This will bring an increasing South West flow, cooler temperatures, along with a return of the Marine layer for tomorrow and Monday. A trough will pass through SoCal Monday morning of which we will be on the trailing end. This will again increase the depth of the Marine layer for Monday morning to around the 4500′ level locally. So expect to have low clouds and fog for the Monday morning commute at or about, and below that elevation. Also there will be a chance for drizzle, and or a light rain shower across the local mountain range and along the foothill areas Monday morning through mid afternoon. Then we will have another change in our weather as High pressure rebuilds in the Great Basin. The pressure gradient from the Great Basin to San Diego is expected to be around 12mbs from the Northeast to the Southwest. This will bring strong gusty winds from the NE across SoCal for about an 18 hour period late Monday, and through the day Tuesday. Cold air advection from the Great Basin will keep temperatures rather cool in the Mountain areas through the first part of the work week ahead. Temperatures today will be in the mid 70s for Lake Arrowhead and Crestline, with overnight lows in the 48-54* range. For Running Springs, Green Valley Lake, and Big Bear, highs today will be in the upper 60s to low 70s with overnight lows in the 30-40* range depending on your elevation. High temperatures tomorrow will be around 5-10* cooler across the area. Monday,high temperatures will be in the upper 40s to mid 50s. Winds today will be light and variable as we change to a SW flow by tonight. Clear skies will end the picturesque views at sunset or sunrise we have had for the last week. On the longer range outlook, December 2nd, a Cut-Off Low may come onshore in SoCal. If this does occur, we may see our first wet storm of this Winter Season. As it looks this morning on the long range charts, there will be some pockets of cold air mixed in the Cut-off Low that may bring a chance for local snow, yes Ray, SNOW, to our local Ski Resorts next weekend. So keep your fingers crossed for that! That’s it for today. Sorry I’ve been so late with the updates I should be on track by tomorrow. Have a great Day and enjoy the Holiday weekend. RC. Thank You for joining me @ lakegregoryweather.com *RC

Friday, November 24, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning. Hope you all had a Happy Thanksgiving!
Today will be a little warm as high pressure peaks across the area. Highs will be in the upper 70s today. Tomorrow, a cooling trend will begin as a trough of low pressure begins to affect the area. Late this afternoon or evening, the NE flow will become SW. A Catalina Eddy will form helping the marine layer to develop and push Inland over the next couple of days. We can expect to see temperatures drop by 5-8* per day through Sunday. Monday morning there will be fog and clouds with a chance for drizzle or even light rain. The temperatures will be much cooler for the mountains with a chance for a snow shower in some of the higher elevations, as it looks at this time, for Monday late morning or by the afternoon. All of this will clear out by Tuesday morning with NE winds returning on the heels of the departing trough. For tomorrows weather forecast I will have a better handle on this upcoming pattern change. Have a great Day and enjoy the Holiday weekend. RC. Thank You for joining me @ lakegregoryweather.com *RC

Thursday, November 23, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning. Hope you all have a Happy Thanksgiving!
This morning we have beautiful weather for the Holiday. Light and variable winds with above normally warm temperatures will be the days forecast. Temperatures should peak today then we will begin a slow cooling trend. High pressure that has given us such nice and abnormally warm weather will begin to weaken as a trough of low pressure arrives to the Pac-NW this weekend. We will see temperatures lower to the 60s by Monday. Sunday we may see an increase in clouds over the area with a chance for fog along the Rim a possibility as well, for Sunday night, and Monday morning, as the tail end of the trough moves through SoCal. Behind the departing trough Monday afternoon, we will see a return of NE winds possibly strong from Monday night through Tuesday morning as the pressure gradient from Tonopah to San Diego becomes fairly tight. Temperatures will be much cooler locally due to cold air advection over the Mountain regions. Highs today around the area will run from 72-77* with overnight lows in the 50s below 5800′, and in the mid 30s to low 40 above 6000′. No rain is expected other than the possibility of some drizzle Monday night through the next five days. I’m still holding hope for a system to come through the first of December. Have a great Day and enjoy the Holiday weekend. RC. Thank You for joining me @ lakegregoryweather.com *RC

Wednesday, November 22, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
Well it looks like Mother Nature has given us very nice weather for the Thanksgiving Weekend. Today we will have gusty NE winds across the area from 5-15mph except below the passes and in the canyons where gusty winds from 10-40mph will be possible. Temperatures will be quite warm for this time of year with the possibility of many locations around SoCal to break or tie the warmest recorded Highs for their area. A ridge of High pressure will keep temperatures warm through Saturday. Highs will be in the upper 60s to mid 70s across all of the local area. San Bernardino will be in the upper 80s to low 90s through Saturday. Sunday, the Ridge of High pressure will begin to break down as a trough of Low pressure will push it out of the area. Much cooler temperatures will move across the area as the trough passes through the West Coast of California. There will be a chance for increasing clouds on Monday and Tuesday as the trough passes through the SoCal region. As for a chance of rain? It’s hard to say at this time, but maybe. This morning it looks like the moisture will stay from the Mammoth/Central CA. Point Conception area and North from there, but there is a wave of vorticity that will pass through Monday/Tuesday so I’ll be watching this. On the longer range outlook, another chance for moisture will arrive on December 2nd, and again on the 5th as it looks this morning. Enjoy the Thanksgiving Holiday Weekend and if you are driving to a weekend destination, use extra caution. Have a good Day and Thank You for joining me @ lakegregoryweather.com *RC

Tuesday, November 21, 2017

 

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Today’s Forecast for Crestline, Lake Arrowhead and the San Bernardino Mountains.
Good Morning.
High clouds will continue to pass over today making for another colorful sunrise. Overall, today will be a little warmer as High pressure develops across most of the Southwest today. Temperatures will be on the rise especially in the Valleys, West of the mountains. This morning gusty NE winds are blowing along the foothills. Waterman Canyon and San Bernardino Weather Stations both have NE winds gusting to 25mph~. Highs today for Crestline and Lake Arrowhead will be from 68-74* with overnight lows from 45-50*. Big Bear, Running Springs and Green Valley Lake will see temperatures today running from 60-65* with overnight lows from 32* in Big Bear to 42* in the Running Springs and GVL areas. Temperatures around the area will peak on Thanksgiving Day with highs into the upper 60s to mid 70s in the warmer areas. For San Bernardino and the Inland Valleys, temperatures will peak Thursday at around 90-92*. Friday, a cooling trend will begin as the area of High pressure begins to weaken, and move to the East. Temperatures will be back to normal by Monday of next week. I’m still hopeful for a pattern change around the beginning of December. There are a couple of waves on the Thickness chart forecasted to pass through SoCal during the first week of December. Fingers crossed. December through March are typically our wettest months. So we are just getting started. January and February are typically the coldest months. March is a transitional time when storms from the North collide with warm wet air masses from the south. This is when we can get heavy wet snows and or rain. Have a good Day and Thank You for joining me @ lakegregoryweather.com *RC