February 19, 2023 at 12:15 pm

150 MPH Upper Jet Stream to Bring Windstorm to Much of Southern California Tuesday Evening into Wednesday

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Southern California Weather Force has issued a regional wind alert for most of Southern California as a classic northwest slider system moves into the region starting Tuesday evening, peaking on Tuesday night with some areas seeing damaging winds and others not, so for your area’s model forecasts read on for details and please pay attention to those details and images as I do not want to hear anyone complain their area is not seeing this event when the forecast clearly would confirm it …


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Wind gusts will start Tuesday evening for the mountain and desert regions as onshore flow starts to take hold.  The wind gusts through Tuesday night into Wednesday will increase in all areas then, including the coast/basin/valley areas.  Since this is regional, I will go ahead and outline the key areas.

  1. 95% of Southern California will have advisory level 30+ mph wind gusts.
  2. Trees and/or powerlines will be down in the stronger hit areas.
  3. Strong winds on Tuesday night and Wednesday should prevent small crafts from being out in the island region (bight) of Southern California.  If you plan on being out there, you will have 40-50 mph wind gusts out of the west-northwest then, so it is not recommended.
  4. The hardest hit area will be around the San Diego/Imperial Border along I-8 where high profile vehicles will be certain to tip over.
  5. The weakest of the rain/wind will be parts of the Ontario and San Bernardino zones, where I call it ‘The Screw Zone’, meaning if you want active weather then you won’t see much as other areas will.
  6. Winds will weaken on Wednesday night …
  7. The Raiden Storm Pattern prediction is still on tap, starting toward the end of a week as this wind-storm will mark the start of the pattern change to come.  Click here to read about the storm pattern.

Please use the information below for the SCWF wind models for Tuesday evening until Wednesday night …

DO NOT FORGET TO LOOK AT THE VALID TIMING IT IS FOR

Wind Model – TUESDAY EVENING THROUGH WEDNESDAY 2-22-2023
SUPPORTING MEMBERS:  Click Here To See The GPS Version Of This Model In Your Member Section Tab.

Raiden Storm Wind Gust Intensity Scale –

8. Extensive widespread damage.
7. Trees are broken or uprooted, building damage is considerable. – High Profile Vehicle Roll-Over CERTAIN.
6. SOME Trees are broken or uprooted, building damage is possible. – High Profile Vehicle Roll-Over Likely, Do NOT recommend Traveling in this zone.  This zone also is the starting zone where trees and powerlines will fall and damage cars and even kill people near or in them!
5. Slight damage occurs to buildings, shingles are blown off of roofs. HIGH WIND WARNING CRITERIA – High Profile Vehicle Roll-Over Possible if weight is not corrected.
4. Twigs and small branches are broken from trees, walking is difficult.
3. Large trees sway, becoming difficult to walk. POWER SHUTDOWN THRESHOLD DURING FIRE WEATHER / WIND ADVISORY CRITERIA 


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