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Storm updates 8th & 9th November 2022

Storm updates 8th & 9th November 2022

The first significant Pacific storm of winter 2022/23 is currently impacting the San Jacinto mountains.

UPDATE on Wednesday 9th at 0540

Photo: Near San Jacinto Peak, early morning on 8th November 2022.

San Jacinto Peak added about six inches of snow overnight for a current total depth of 10-12 onches (although it continues to snow very lightly).

Long Valley (at 8600 ft) has an estimated total snow depth of 4-5 inches of snow, on top of over three inches of rain in the previous 36 hours.

One inch of snow fell overnight in Idyllwild (at 5550 ft).

UPDATE on Tuesday 8th at 1910

Thankfully the precipitation has largely turned back into snow at San Jacinto Peak, where the storm total is now close to 6 inches. Hopeful for significantly more overnight.

The storm total for rain in Idyllwild (at 5550ft) is now at a really impressive 2.32 inches, with 1.76 inches in the last 12 hours.

Kyle Eubanks reported that hiking through Long Valley was like walking through a river. The rain is starting to turn to snow there now, with about 0.5 inch accumulating so far, on top of more than two inches of rain today.

UPDATE on Tuesday 8th at 1600

Idyllwild has added an impressive 1.25 inches of rain since 0700 this morning, for a storm total already of about 1.8 inches.

Having reached a depth of about 4.5 inches of snow at San Jacinto Peak, there has been negligible new accumulation in the last hour or more. Hiking around I was disappointed to find that the precipitation had turned to freezing rain again, and I quickly got soaked.

The same seems to be happening in Long Valley where the air temperature is fluctuating just above freezing. An impressive rainfall total of at least two inches was accompanied by about 0.25 inch of snow, but some of that seems to have melted in the past hour or so.

UPDATE on Tuesday 8th at 1230

Idyllwild has added another 0.5 inch of rain since 0700 this morning, for a storm total already exceeding one inch.

Steady snowfall at a rate of about one inch per hour in the past couple of hours has accumulated at San Jacinto Peak to a total depth of 3.0 inches.

The freeze level had remained stubbornly high in this relatively mild “atmospheric river” storm. However the air temperature has dropped significantly since 1200, and at Long Valley (8600 ft) the heavy rain has turned to wet snow in the past half hour. Prior to that, Long Valley had about 1.5 inch of rain.

UPDATE on Tuesday 8th at 1030

Idyllwild received a good rain overnight with 0.56 inch recorded by 0700 (at 5550ft).

A barely measurable dusting of 0.25 inch of snow fell at San Jacinto Peak overnight following an estimated 0.2 inch of freezing rain that plastered all the rocks with verglas.

A light snow of fine rounded grains started at about 0800, and current accumulation at San Jacinto Peak is near 1.0 inch. Snow level on my hike this morning was at about 9500 ft, and it is currently raining steadily in Long Valley at 8600 ft.


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