Alert archive / California / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 25, NWS Reno, NV

September 4, 2003Plumas County, California

NWS Reno, NV issued this severe thunderstorm warning at Sep 4, 2003, 5:19 PM PDT for Plumas County, California. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 4, 2003, 5:19 PM PDT (00:19 UTC)
Expired: Sep 4, 2003, 5:45 PM PDT
In force: 26 min
Issued by: NWS Reno, NV
Area: Whole counties

County Plumas County, CA

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 0.3 hours before the alert went out and 231 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 208 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 2281 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KREV 050019
SVRREV
CAC063-050045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
518 PM PDT THU SEP 4 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL PLUMAS COUNTY IN NORTHERN CALIFORNIA
  THIS INCLUDES THE CITY OF BECKWOURTH

* UNTIL 545 PM PDT

* AT 516 PM PDT...A SEVERE THUNDERSTORM WAS REPORTED OVER
  BECKWOURTH...MOVING NORTH AT 15 MPH.

HAIL...INTENSE RAIN AND DANGEROUS LIGHTNING ARE LIKELY WITH THIS
STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES.

LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

REPORT DAMAGING WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

$$

LAT...LON 4017 12044 4010 12037 4010 12028 3978 12030
          3978 12051 3995 12052 4017 12054

What forecasters said that day

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

NWS Reno, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 4, 2:50 PM PDT, 2 hours 29 minutes earlier.

Area forecast discussion, Sep 4, 2:50 PM PDT, 2 hours 29 minutes before

WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
250 PM PDT THU SEP 4 2003

WEST WINDS DID NOT MATERIALIZE AND SCATTERED THUNDERSTORMS...SOME
WITH LARGE HAIL...HAVE DEVELOPED FROM THE TAHOE AREA TO SOUTHERN
LASSEN COUNTY.  ISOLATED STORMS IN THE WESTERN NEVADA VALLEYS AS
WELL.  THIS WILL CONTINUE INTO THE EVENING BUT SHOULD DISSIPATE
AFTER SUNSET.

ETA HANGS ONTO MORE LOW LEVEL MOISTURE AND INSTABILITY TOMORROW
WHILE GFS BRINGS IN A BIT MORE WEST WIND...DRYING OUT THE WESTERN
AREAS.  GIVEN WHAT HAPPENED TODAY WILL TREND TOWARDS THE MORE
PESSIMISTIC AND SLOWER ETA MODEL AND CONTINUE TO MENTION ISOLATED TO
SCATTERED SHOWERS AND THUNDERSTORMS AGAIN TOMORROW ACROSS THE
REGION.  THESE WILL AGAIN BE DIURNAL IN NATURE.  FRIDAY NIGHT AND
SATURDAY ATMOSPHERE WILL DRY OUT AS A SHORT WAVE MOVES INTO THE
PACIFIC NORTHWEST.  THIS FEATURE WILL PUSH A DRY COLD FRONT INTO
NORTHERN NEVADA SUNDAY...BRINGING COOLER AND BREEZY TO LOCALLY WINDY
CONDITIONS.  SG

IN THE EXTENDED...MONDAY THROUGH THURSDAY...
MODEL RUNS DURING THE DAY TODAY CONT TO WEAK PACIFIC NW TROF.
TROF WILL PASS TO THE NORTH EARLY MONDAY WITH A TRAILING COLD
FRONT MOVING THROUGH THE CWA.  COOLER TEMPERATURES LIKELY TO SETTLE
INTO THE CWA WITH WINDS SHIFTING TO THE NORTH.  BY THURSDAY WE SEE A
BUILD OF A SIGNIFICANT RIDGE IN THE EASTERN PACIFIC WHICH LEAVES A
DRY NW FLOW INTO WESTERN NEVADA AND THE NRN SIERRA. JF

.REV...NONE.

Hazardous weather outlook, Sep 4, 6:50 AM PDT, 10 hours 29 minutes before

CAZ070>073-NVZ001>005-051400-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RENO NV
650 AM PDT THU SEP 04 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN
SIERRA AND NORTHEASTERN CALIFORNIA.

.DAY ONE...TODAY

SCATTERED THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL TODAY ACROSS THE REGION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

Nearby

Severe Thunderstorm Warnings in California, 2003 Every severe thunderstorm warning in 2003

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.