Alert archive / California / Winter Storm Warnings in 2019
Winter Storm Warning 10, NWS San Diego, CA
NWS San Diego, CA issued this winter storm warning at Nov 25, 2019, 1:16 PM PST for 4 counties in California. It took effect at Nov 27, 2019, 4:00 AM PST. It was in force for 66 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 25, 2019, 1:16 PM PST (21:16 UTC)
- In effect from
- Nov 27, 2019, 4:00 AM PST
- Expired
- Nov 29, 2019, 10:00 PM PST
- In force
- 66 hr
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 21:17 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.3 hours before the alert went out and 124 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2257 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before this winter storm warning went out at Nov 25, 9:45 AM PST, 3 hours 31 minutes earlier.
Area forecast discussion, Nov 25, 9:45 AM PST, 3 hours 31 minutes before
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</html>The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 9:43 PM PST | Small Craft Advisory | SGX | 29 hr | |
| Nov 25, 2:15 AM PST | High Wind Warning | SGX | Riverside, San Bernardino | 17 hr |
| Nov 25, 2:15 AM PST | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 17 hr |
| Nov 25, 1:24 PM PST | Dust Storm Warning | SGX | San Bernardino | 96 min |
Nearby
Winter Storm Warnings in California, 2019Every winter storm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.