Alert archive / California / Winter Storm Warnings in 2010

Winter Storm Warning 6, NWS San Diego, CA

February 9, 2010Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this winter storm warning at Feb 9, 2010, 2:31 AM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Feb 9, 2010, 4:00 PM PST. It was in force for 5 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
Feb 9, 2010, 2:31 AM PST (10:31 UTC)
In effect from
Feb 9, 2010, 4:00 PM PST
Expired
Feb 9, 2010, 8:52 PM PST
In force
5 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 10:34 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.

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 Feb 8, 9:30 PM PST, 5 hours 1 minute earlier.

Area forecast discussion, Feb 8, 9:30 PM PST, 5 hours 1 minute before
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Hazardous weather outlook, Feb 8, 4:00 PM PST, 10 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
400 PM PST MON FEB 8 2010

CAZ042-CAZ043-048-050-055>058-060>062-PZZ750-PZZ775-091200-
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
400 PM PST MON FEB 8 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ALL OF EXTREME SOUTHWESTERN
CALIFORNIA.

.DAY ONE...REMAINDER OF TODAY AND TONIGHT.

NO WEATHER HAZARDS ARE EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY.

LATE TUESDAY INTO WEDNESDAY...UPPER LEVEL LOW PRESSURE WILL MOVE
OVER SOUTHERN CALIFORNIA BRINGING THE OF ISOLATED THUNDERSTORMS WITH
BRIEF HEAVY RAIN...LOCALLY HEAVY MOUNTAIN SNOW. SNOW LEVELS DOWN TO
NEAR 3000 FEET.

.SPOTTER INFORMATION STATEMENT...SKYWARN SPOTTER ACTIVATION IS NOT
REQUESTED FOR THIS AREA...HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO
REPORT SIGNIFICANT WEATHER CONDITIONS.

ATKIN

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 9, 2:31 AM PSTWinter Weather AdvisorySGXOrange, Riverside, San Bernardino, San Diego31 hr
Feb 9, 4:00 AM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego22 hr
Feb 9, 9:08 AM PSTSpecial Marine WarningSGX26 min
Feb 9, 3:01 PM PSTAreal Flood AdvisorySGXOrange, Riverside, San Bernardino, San Diego3 hr

Nearby

Winter Storm Warnings in California, 2010Every winter storm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.