Alert archive / Washington / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 4, NWS Spokane, WA

May 24, 2003Stevens County, Washington

NWS Spokane, WA issued this severe thunderstorm warning at May 24, 2003, 7:05 PM PDT for Stevens County, Washington. It was in force for 40 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
May 24, 2003, 7:05 PM PDT (02:05 UTC)
Expired
May 24, 2003, 7:45 PM PDT
In force
40 min
Issued by
NWS Spokane, WA
Area
Counties, with a storm outline in the text

County Stevens County, WA

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 2.1 hours before the alert went out and 133 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, Spokane, WA at 00:00Z on 2003-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 492 joules per kilogram.LCLLFCEL10008507005003002001001 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, Spokane, WA at 00:00Z on 2003-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.19395878Sfc1 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
492 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
2814 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS56 KOTX 250205
SVROTX
WAC065-250230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
701 PM PDT SAT MAY 24 2003

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN STEVENS COUNTY IN NORTHEAST WASHINGTON

* UNTIL 745 PM PDT

* AT 652 PM PDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 
MILES SOUTH OF FRUITLAND...OR   ABOUT 42 MILES NORTHWEST OF 
SPOKANE...MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL SOUTHERN STEVENS COUNTY AT 720 PM PDT

EXPECT WIND GUSTS TO 70 MPH AND HAIL UP TO 1 INCH IN DIAMETER WITH 
THIS STORM.

LAT...LON 4799 11834 4792 11811 4809 11777 4825 11800

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 7:19 PM PDTSevere Thunderstorm WarningOTXSpokane26 min
May 24, 7:36 PM PDTSevere Thunderstorm WarningOTXStevens39 min

Nearby

Severe Thunderstorm Warnings in Washington, 2003Every 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.