Storm System Moving Out Today For Most; Leaving Damaging Santa Ana Winds and For The Cajon Pass They Will Be Strongest Tuesday Morning at Over 80 mph!


Many big-rigs are tipped over on I-215 and I-15 below the Cajon Pass where I warned of it with my wind model and guess what?  The wind model is even stronger for Tuesday morning for below the Cajon Pass with over 80 mph projected, and if today is showing how strong it is then wait till you see Tuesday morning so read on for more …

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First I’ll dive right into the wind event.  This wind event thus far is the strongest of the season as previously projected.  We have seen downed power-lines and trees everywhere the Santa Ana Winds normally touch.  However, the amount of sinking air coming in overnight tonight, mainly Tuesday morning for the morning commute is nearly 2x stronger than now.  I have given the warning to truckers already and many are waiting it out.  You will be waiting all day and all night,and most of Tuesday.  Attempting Tuesday morning is a certain roll-over and load balance will not work.  This is a rare Level 8 out of 8 setup below the Cajon Pass.

Other areas include The Ortega Highway.  You are sitting at Level 6 and 7.  This is a roll-over area as well in spots where the wind becomes a cross-wind.  The wind model was adjusted to only show Level 4,5,6,7 and 8.  It is available below this write-up and is the center of the article image.

For the rest of today storm-wise.  A Thunderstorm Watch was issued yesterday for the following areas; Imperial County … Eastern Riverside Deserts from Desert Center to Blythe … CO River San Bernardino County Parker to Lake Havasu … and it read; A very potent upper level low will move through the region starting Monday morning and going through the day.  Instability/Lift parameters are widespread enough for a thunderstorm watch to be issued for widespread thunderstorms.  The storms will extend from Imperial County to around Lake Havasu City and Parker but probably will not go as far north as Needles, but just as a precaution of error you are also in this zone.  Storms will contain gusty winds and even hail at times … and be out by Monday evening …

This morning I issued a Weather Advisory for San Diego for convective activity moving through.  These did form and isolated lightning strikes hit the county.  It read; Showers out of the east will cross the San Diego area this morning in the storm’s last breath.  The SCWF Thunderstorm Model does peg isolated thunderstorm activity with a small area of instability passing through so with the showers there will be the chance of isolated thunderstorms.  This activity will be gone by afternoon.

The long range is showing a system into the forecast area around the 16th, however trends are drier with it and with an inside slider projection.  This means that after the 16th we will strong Santa Ana Winds yet again as the cold air behind the system produces the thermal support needed.  That’s about it.  After this event I’ll be going into ‘hibernation’ for a few days as the weather quiets down.  I’ll be back when it ramps up again.

Martin 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

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.

Santa Clarita
Cajon Pass
Ortega Highway
Yucca Valley Grade

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