Alert archive / Montana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 1, NWS Missoula, MT

May 30, 1995Granite County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at May 30, 1995, 11:26 AM MDT for Granite County, Montana. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
May 30, 1995, 11:26 AM MDT (17:26 UTC)
Expired
May 30, 1995, 12:00 PM MDT
In force
34 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Granite County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 5.4 hours before the alert went out and 267 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 12:00Z on 1995-05-30Temperature 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 12:00Z on 1995-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 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
2508 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
18 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 KMSO 301728
SVRMSO
MTC039-301800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
1126 AM MDT TUE MAY 30 1995
 
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN WEST CENTRAL MONTANA
 
   ...SOUTHWESTERN GRANITE COUNTY
 
AT 1125 AM MDT A SEVERE THUNDERSTORM WAS DETECTED BY DOPPLER RADAR IN
SOUTHWEST GRANITE COUNTY OVER HIGHWAY 38...20 MILES SOUTHWEST OF
PHILIPSBURG. LITTLE MOVEMENT OF THIS STORM WAS NOTED.
 
 
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.
 
 
BAILEY

Nearby

Severe Thunderstorm Warnings in Montana, 1995Every severe thunderstorm warning in 1995

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.