Alert archive / Montana / Tornado Warnings in 1991
Tornado Warning 1, NWS Missoula, MT
NWS Missoula, MT issued this tornado warning at Jun 21, 1991, 5:23 PM MDT for Meagher County, Montana. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1991, 5:23 PM MDT (23:23 UTC)
- Expired
- Jun 21, 1991, 6:30 PM MDT
- In force
- 67 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Meagher County, MT
The nearest sounding before it
Great Falls, MT (KGTF), launched 12:00Z, 11.4 hours before the alert went out and 103 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1217 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHLN 212325 TORHLN MTC059-220030- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HELENA MT 523 PM MDT FRI JUN 21 1991 THE NATIONAL WEATHER SERVICE IN HELENA MT HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST MONTANA ...EASTERN MEAGHER COUNTY AT 5:18 PM MDT...THE MEAGHER COUNTY SHERIFF S OFFICE REPORTED FUNNEL CLOUDS NEAR THE TOWN OF RINGLING MONTANA WHICH IS SOUTH OF WHITE SULPHUR SPRINGS MONTANA ON US HIGHWAY 89. THE FUNNEL CLOUDS ARE ASSOCIATED WITH AN INTENSE THUNDERSTORM AS INDICATED BY NATIONAL WEATHER SERVICE RADAR TO BE LOCATED IN THAT AREA. THE THUNDERSTORM WAS MOVING NORTHEAST AT 30 MILES AN HOUR. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MEAGHER AND GALLATIN COUNTIES OF SOUTHEST MONTANA UNTIL 9 PM MDT THIS FRIDAY EVENING. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENxCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. MHOON
Nearby
Tornado Warnings in Montana, 1991Every tornado warning in 1991Tornadoes in 1991
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.