Alert archive / California / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 4, NWS Reno, NV

July 22, 2003Plumas County, Sierra County, California

NWS Reno, NV issued this severe thunderstorm warning at Jul 22, 2003, 5:26 PM PDT for Plumas County, Sierra County, California. It was in force for 34 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: Jul 22, 2003, 5:26 PM PDT (00:26 UTC)
Expired: Jul 22, 2003, 6:00 PM PDT
In force: 34 min
Issued by: NWS Reno, NV
Area: Whole counties

Counties Plumas County, CA, Sierra County, CA

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 0.4 hours before the alert went out and 213 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: 458 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 3636 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

734 
WUUS55 KREV 230026
SVRREV
CAC063-091-230100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
525 PM PDT TUE JUL 22 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 600 PM PDT

* AT 514 PM PDT...THE CALIFORNIA HIGHWAY PATROL REPORTED A SEVERE    
  THUNDERSTORM OVER BECKWOURTH...OR ABOUT 4 MILES EAST OF            
  BECKWOURTH...MOVING SOUTHWEST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE...OVER NORTHERN SIERRA VALLEY      
  BETWEEN PORTOLA AND CHILCOOT UNTIL 6 P.M.

* OTHER LOCATIONS IN THE WARNING INCLUDE VINTON

GOLFBALL SIZE HAIL HAS BEEN REPORTED WITH THIS STORM. IF YOU ARE IN 
THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A 
SUBSTANTIAL SHELTER.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY
MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO
RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS.

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

$$

LAT...LON 3981 12016 3991 12035 3979 12050 3964 12027

The office that day

Everything else NWS Reno, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 6:40 PM PDT	Flash Flood Warning	REV	Lassen	35 min
Jul 23, 2:39 PM PDT	Severe Thunderstorm Warning	REV	Nevada	21 min
Jul 23, 2:56 PM PDT	Severe Thunderstorm Warning	REV	Nevada	34 min
Jul 23, 3:00 PM PDT	Flash Flood Warning	REV	Nevada	2 hr
Jul 23, 3:07 PM PDT	Severe Thunderstorm Warning	REV	Lassen	33 min
Jul 23, 3:20 PM PDT	Severe Thunderstorm Warning	REV	Placer	25 min
Jul 23, 4:39 PM PDT	Severe Thunderstorm Warning	REV	Lassen	26 min
Jul 23, 4:46 PM PDT	Flash Flood Warning	REV	Lassen	119 min
Jul 23, 4:59 PM PDT	Severe Thunderstorm Warning	REV	Lassen	31 min

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.