Severe Thunderstorm Warning 23, NWS Spokane, WA

Issued

Jun 21, 1997, 12:40 PM PDT (19:40 UTC)

Expired

Jun 21, 1997, 1:30 PM PDT

In force

50 min

Issued by

NWS Spokane, WA

Area

Whole counties

County Chelan County, WA

The Seattle radar (KATX), 144 km from the middle of the area, began a volume at 19:41 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.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

753 
WUUS1 KGEG 211942 RRA
SVRGEG
WAC007-212030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
1240 PM PDT SAT JUN 21 1997
 
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL WASHINGTON
 
   ...EASTERN CHELAN COUNTY
 
A SEVERE THUNDERSTORM WILL MOVE NORTHEAST ACROSS EXTREME EASTERN CHELAN
COUNTY TO JUST NORTH OF THE CITY OF CHELAN BY ABOUT 1250 PM PDT. THE
STORMS WILL BE ACCOMPANIED BY LARGE HAIL AND BRIEF HEAVY RAINFALL.
 
AT 1235 PM PDT A SEVERE THUNDERSTORM WAS LOCATED ABOUT 15 MILES NORTH OF
ENTIAT MOVING NORTHEST AT ABOUT 12 MPH. WEATHER SPOTTERS IN THE AREA
HAVE REPORTED HAIL TO .50 INCH AND HEAVY RAINFALL
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DONT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
 
&

NWS Spokane, WA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 8:30 AM PDT, 4 hours 10 minutes earlier.

EASTERN WASHINGTON AND NORTH IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WASHINGTON
830 AM PDT SAT JUN 21 1997

STRONG LOW WITH CONSIDERABLE COOL AIR WILL MOVE ACROSS CWA THIS
AFTERNOON. MODELS IN FAIRLY GOOD AGREEMENT ON THIS FEATURE WITH AVN
HAVING BEST RECORD ON TIMING. NEW ETA CONTINUES TO PUT CAPE VALUES OF
NEAR 400 IN NORTHERN IDAHO PANHANDLE THIS AFTERNOON SO SPRING TYPE
SHOWERS WITH SOME THUNDERSTORMS STILL LOOKS GOOD IN CURRENT FORECAST.
FRONT TO MOVE TO NEAR WASHINGTON/IDAHO BOARDER BY AROUND 00Z.

ON SUNDAY...H85 LOW SHOWN STALLING OVER SOUTHERN BC AND WILL TAP INTO
MOISTURE TO THE NORTH AND EAST. THIS WILL SPREAD HIGH RH OVER CWA
PARTICULARLY OVER NORTHERN AND EASTERN SECTIONS. CURRENT POPS ON
SUNDAY MAY BE A LITTLE HIGH BUT WILL GO WITH THEM FOR NOW.
TEMPERATURE TRENDS LOOK REASONABLE WITH WELL BELOW NORMAL MAXS NEXT
TWO DAYS. GRADIENT SHOULD TIGHTEN CONSIDERABLY THIS AFTERNOON WITH
WINDY CONDITIONS DEVELOPING.
KH

...PRODUCTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE...
...PLEASE SEE SEACCFSEA AND ZONE FORECAST PRODUCTS...

GEG 067/046/062  456
CQV 067/047/060  456
S86 065/045/059  456
COE 065/045/059  456
WWP 063/044/058  456

.GEG...FLOOD WARNING FOR PEND OREILLE RIVER
       FLOOD WARNING FOR LAKE PEND OREILLE

Severe Thunderstorm Warnings in Washington, 1997Every severe thunderstorm warning in 1997

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.