Alert archive / California / Special Weather Statements in 2016

Special Weather Statement, NWS Sacramento, CA

March 21, 2016Tehama County, California

NWS Sacramento, CA issued this special weather statement at Mar 21, 2016, 1:15 PM PDT for Tehama County, California. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 21, 2016, 1:15 PM PDT (20:15 UTC)
Expired
Mar 21, 2016, 2:00 PM PDT
In force
45 min
Issued by
NWS Sacramento, CA

County Tehama County, CA

The radar

The Beale AFB radar (KBBX), 93 km from the middle of the area, began a volume at 20:18 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

Oakland, CA (KOAK), launched 12:00Z, 8.3 hours before the alert went out and 291 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.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 12:00Z on 2016-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 12:00Z on 2016-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sacramento, CA wrote its last area forecast discussion before this special weather statement went out at Mar 21, 8:47 AM PDT, 4 hours 28 minutes earlier.

Area forecast discussion, Mar 21, 8:47 AM PDT, 4 hours 28 minutes before
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In the hours before

Local storm report, Mar 21, 7:16 AM PDT, 5 hours 59 minutes before
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Local storm report, Mar 21, 8:40 AM PDT, 4 hours 35 minutes before
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Special weather statement, Mar 21, 1:10 PM PDT, 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
110 PM PDT MON MAR 21 2016

CAZ014>016-066-068-212100-
CENTRAL SACRAMENTO VALLEY CA-WESTERN PLUMAS COUNTY/LASSEN PARK CA-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY CA-
BURNEY BASIN / EASTERN SHASTA COUNTY CA-
NORTHERN SACRAMENTO VALLEY CA-
110 PM PDT MON MAR 21 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PLUMAS...
SOUTHEASTERN SHASTA...EASTERN GLENN...EASTERN TEHAMA AND NORTHWESTERN
BUTTE COUNTIES UNTIL 200 PM PDT...

AT 104 PM PDT...A TRAINED WEATHER SPOTTER REPORTED PENNY HAIL IN RED
BLUFF WITH TORRENTIAL RAIN AND PONDING OF WATER ON ROADS. STRONG
THUNDERSTORMS EXTEND ALONG A LINE EXTENDING JEST EAST OF REDDING
THROUGH RED BLUFF TO JUST WEST OF WILLOWS WITH PEA SIZED HAIL AND
TORRENTIAL RAIN. MOTORISTS ALONG AREA ROADS SUCH AS I5 ARE URGED TO
SLOW DOWN AND USE CAUTION. MOVEMENT OF THE LINE WAS NORTHEAST AT 50
MPH.

PEA SIZE HAIL AND QUICKLY SHIFTING WINDS IN EXCESS OF 45 MPH WILL BE
POSSIBLE WITH THESE STORMS.

SOME LOCATIONS IMPACTED INCLUDE...
CHICO...PARADISE...CORNING...ORLAND...WILLOWS...MINERAL...SHINGLETOWN
...GLENN...TEHAMA...VINA...PAYNES CREEK...DURHAM... LASSEN NATIONAL
PARK...MAGALIA...ORDBEND...AND NORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4096 12137 3957 12166 3946 12239 4068 12205
TIME...MOT...LOC 2004Z 226DEG 43KT 4046 12202 3952 12233

EK
Special weather statement, Mar 21, 1:15 PM PDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
115 PM PDT MON MAR 21 2016

CAZ014>016-066-068-212100-
CENTRAL SACRAMENTO VALLEY CA-WESTERN PLUMAS COUNTY/LASSEN PARK CA-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY CA-
BURNEY BASIN / EASTERN SHASTA COUNTY CA-
NORTHERN SACRAMENTO VALLEY CA-
115 PM PDT MON MAR 21 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PLUMAS...
SOUTHEASTERN SHASTA...EASTERN GLENN...EASTERN TEHAMA AND NORTHWESTERN
BUTTE COUNTIES UNTIL 200 PM PDT...

AT 104 PM PDT...A TRAINED WEATHER SPOTTER REPORTED PEA SIZED HAIL IN
RED BLUFF WITH TORRENTIAL RAIN AND PONDING OF WATER ON ROADS. STRONG
THUNDERSTORMS EXTEND ALONG A LINE EXTENDING JUST EAST OF REDDING
THROUGH RED BLUFF TO JUST WEST OF WILLOWS. MOTORISTS ALONG AREA
ROADS SUCH AS I5 ARE URGED TO SLOW DOWN AND USE CAUTION. MOVEMENT OF
THE LINE WAS TO THE NORTHEAST AT 50 MPH.

PEA SIZE HAIL AND QUICKLY SHIFTING WINDS IN EXCESS OF 45 MPH WILL BE
POSSIBLE WITH THESE STORMS.

SOME LOCATIONS IMPACTED INCLUDE...
CHICO...PARADISE...CORNING...ORLAND...WILLOWS...MINERAL...SHINGLETOWN
...GLENN...TEHAMA...VINA...PAYNES CREEK...DURHAM... LASSEN NATIONAL
PARK...MAGALIA...ORDBEND...AND NORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4096 12137 3957 12166 3946 12239 4068 12205
TIME...MOT...LOC 2004Z 226DEG 43KT 4046 12202 3952 12233

EK

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 6:31 PM PDTSpecial Weather StatementSTOTehama29 min
Mar 21, 1:50 AM PDTWind AdvisorySTO15 hr
Mar 21, 1:10 PM PDTSpecial Weather StatementSTOTehama50 min
Mar 21, 3:13 PM PDTSpecial Weather StatementSTOButte, Sutter, Yuba47 min

Nearby

Special Weather Statements in California, 2016Every special weather statement in 2016

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.