Severe Thunderstorm Warning 36, NWS Missoula, MT

Issued

Aug 7, 1997, 1:35 PM MDT (19:35 UTC)

Expired

Aug 7, 1997, 2:15 PM MDT

In force

40 min

Issued by

NWS Missoula, MT

Area

Whole counties

County Flathead County, MT

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.

000 
TTAA00 KMSO 071935 RRA
SVRMSO
MTC029-072015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
135 PM MDT THU AUG 7 1997
 
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MONTANA
 
   ...SOUTH CENTRAL FLATHEAD COUNTY
 
AT 135 PM MDT...MISSOULA DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3
MILES SOUTH OF KALISPELL. THIS STORM IS MOVING EAST-NORTHEAST AT 25 MPH
AND WILL MOVE THROUGH CRESTON IN BY 145 PM MDT AND THEN OVER HUNGRY
HORSE RESERVIOR THEREAFTER. MARBLE SIZE HAIL HAS ALREADY BEEN REPORTED
WITH THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
&
 
CLEMMONS/BELTZ

NWS Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 7, 9:15 AM MDT, 4 hours 20 minutes earlier.

WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
915 AM MDT THU AUG 7 1997

WEAK SURFACE FRONT/TROUGH PUSHED THRU AREA OVERNIGHT WITH SECONDARY
STRONGER FRONT CURRENTLY EXTENDING FROM EXTREME NORTHWEST MT INTO
SOUTHEAST WA. WEAK VORT AHEAD OF THIS FRONT...BEST SEEN ON 03Z ETA IS
PUSHING ACROSS NORTH CENTRAL IDAHO. MODELS ALL INDICATE ATMOSPHERE
ALREADY UNSTABLE AS SEEN BY TSTMS ALREADY SOUTHEAST OF LOOKOUT PASS
IN MINERAL COUNTY. ATMOSPHERE FURTHER DESTABLIZES QUITE A BIT THIS
AFTERNOON IN WEST CENTRAL/SOUTHWEST MT AND EAST CENTRAL IDAHO AHEAD
OF FRONT. THIS IS ESPECIALLY SEEN BY STRONG CAPE...-5 LIS AND THETA-
E RIDGE OVER AREA. SO WILL INCREASE AREAL COVERAGE WEST CENTRAL/
SOUTHWEST MT AND ADD MENTION OF STRONG GUSTY WINDS DUE TO DRIER LOWER
LEVELS AS SEEN WITH INVERTED-V SOUNDINGS THIS AFTERNOON. IN NORTHWEST
...BEST CHANCES OF TSTMS NEAR DIVIDE AS REMAINDER OF AREA HAS LESSER
INSTABILITY BUT AFTER FRONTAL PASSAGE ANOTHER SHORTWAVE MOVES THRU
ALONG WITH A SURFACE TROUGH SO WILL KEEP MENTION OF SHOWERS/TSTMS.
WORK ZONES DO CONTAIN MANY SIGNIFICANT CHANGES.  BELTZ

...FORECASTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE...
LIB .. 085/050 077/... ... 27211
FCA BB 086/050 077/047 073 27211
POL .. 085/055 079/... ... 27211
MSO BU 086/052 082/050 079 27320
HMM .. 088/050 083/... ... 27320
BTM .. 082/048 081/... ... 27440
S80 .. 088/056 085/... ... 27210
P69 .. 090/062 087/... ... 27320
SMN .. 087/053 087/... ... 27330

Severe Thunderstorm Warnings in Montana, 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.