Alert archive / Washington / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS Spokane, WA

June 26, 2002Asotin County, Garfield County, Washington

NWS Spokane, WA issued this severe thunderstorm warning at Jun 26, 2002, 7:29 PM PDT for Asotin County, Garfield County, Washington. It was in force for 46 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
Jun 26, 2002, 7:29 PM PDT (02:29 UTC)
Expired
Jun 26, 2002, 8:15 PM PDT
In force
46 min
Issued by
NWS Spokane, WA
Area
Counties, with a storm outline in the text

Counties Asotin County, WA, Garfield County, WA

The radar

The Pendleton radar (KPDT), 115 km from the middle of the area, began a volume at 02:32 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

Spokane, WA (KOTX), launched 00:00Z, 2.5 hours before the alert went out and 198 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 2002-06-27Temperature 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, Spokane, WA at 00:00Z on 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
3525 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
67 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.

000 
WUUS56 KOTX 270229
SVROTX
WAC003-023-270315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
728 PM PDT WED JUN 26 2002

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ASOTIN COUNTY IN SOUTHEAST WASHINGTON
  SOUTH CENTRAL GARFIELD COUNTY IN SOUTHEAST WASHINGTON

* UNTIL 815 PM PDT

AT 722 PM PDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS FROM 25 
MILES SOUTH OF PEOLA TO 14 MILES SOUTHEAST OF ANATONE...OR 30 MILES 
SOUTH-SOUTHWEST OF LEWISTON...MOVING NORTH AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
   ANATONE AT 755 PM PDT
   PEOLA AT 815 PM PDT

THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE NICKLE-SIZED HAIL...AND 
WINDS UP TO 60 MPH.

IN ADDITION TO HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4590 11768 4590 11687 4635 11714 4634 11804

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:18 PM PDTSevere Thunderstorm WarningOTXGarfield42 min

Nearby

Severe Thunderstorm Warnings in Washington, 2002Every severe thunderstorm warning in 2002

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.