Alert archive / Montana / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 6, NWS Missoula, MT

July 5, 1992Flathead County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jul 5, 1992, 2:31 PM MDT for Flathead County, Montana. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1992, 2:31 PM MDT (20:31 UTC)
Expired
Jul 5, 1992, 3:15 PM MDT
In force
44 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Flathead County, MT

The nearest sounding before it

Great Falls, MT (KGTF), launched 12:00Z, 8.5 hours before the alert went out and 224 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, Great Falls, MT at 12:00Z on 1992-07-05Temperature 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, Great Falls, MT at 12:00Z on 1992-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939587897Sfc1 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
NaN m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
34 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 
TTAA00 KFCA 052031
SVRFCA
MTC029-052115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KALISPELL MONTANA
231 PM MDT SUN JUL 5 1992
 
THE NATIONAL WEATHER SERVICE IN KALISPELL MONTANA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MONTANA
 
   ...FLATHEAD COUNTY  INCLUDING THE CITY OF KALISPELL AND WHITEFISH
 
SURFACE AND RADAR REPORTS INDICATE A VERY STRONG THUNDERSTORM 25 MILES
SOUTHWEST OF KALISPELL AT 230 PM MDT THIS AFTERNOON.  THIS STORM IS
MOVING TO THE NORTHEAST AT APPROXIMATELY 25 MILES AN HOUR.  THIS STORM
MAY PRODUCE STRONG GUSTY WINDS AND HAIL ALONG WITH HEAVY RAIN AS IT
MOVES THROUGHT THE FLATHEAD VALLEY.
 
 
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.
 
NNNN

Nearby

Severe Thunderstorm Warnings in Montana, 1992Every severe thunderstorm warning in 1992

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.