Alert archive / Montana / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 5, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jun 28, 1992, 6:40 PM MDT for Lake County, Montana. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1992, 6:40 PM MDT (00:40 UTC)
- Expired
- Jun 28, 1992, 7:30 PM MDT
- In force
- 50 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Lake County, MT
The nearest sounding before it
Great Falls, MT (KGTF), launched 00:00Z, 0.7 hours before the alert went out and 210 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
- 213 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1279 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSO 290039 SVRMSO MTC047-290130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 640 PM MDT SUN JUN 28 1992 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN WEST CENTRAL MONTANA ...NORTHEASTERN LAKE COUNTY MISSOULA RADAR AND A WEATHER SPOTTER REPORTED A SEVERE THUNDERSTORM NEAR SWAN LAKE IN NORTHEAST LAKE COUNTY MOVING TO THE NORTHEAST AT 20 TO 25 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 28, 2:26 PM MDT, 4 hours 14 minutes before
MTZ002-282300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MISSOULA MT 215 PM MDT SUN JUN 28 1992 AT 2 PM MISSOULA WEATHER RADAR WAS DETECTING STRONG THUNDERSTORMS OVER MUCH OF RAVALLI AND GRANITE COUNTIES. THESE THUNDERSTORMS ARE MOVING NORTHEAST AT 15 TO 20 MPH. THE STRONGEST STORM CONTINUES TO BE THE ONE LOCATED IN RAVALLI COUNTY WHICH WILL PROBABLY CROSS U.S. HIGHWAY 93 BETWEEN SULA AND CONNER IN A HALF HOUR OR SO. ANOTHER STRONG STORM WAS LOCATED JUST WEST OF DRUMMOND AND WILL MOVE UP THROUGH THE HELMVILLE AREA IN THE NEXT HOUR. THESE THUNDERSTORMS WILL LIKELY CONTAIN HEAVY RAIN...POSSIBLY LARGE HAIL AND STRONG WINDS. IN ADDITION...A SEVERE THUNDERSTORM WATCH IS IN EFFECT THROUGH THIS EVENING FOR ALL OF WESTERN MONTANA AS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. REMEMBER...A WATCH MEANS SEVERE THUNDERSTORMS ARE POSSIBLE...BUT NOT ACTUALLY OCCURRING. WARNINGS WILL BE ISSUED FOR SEVERE THUNDERSTORMS AS THEY OCCUR. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL T.V. AND RADIO FOR MORE INFORMATION. END/RICHMOND
Special weather statement, Jun 28, 5:01 PM MDT, 1 hour 39 minutes before
MTZ002-282300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MISSOULA MT 4 PM MDT SUN JUN 28 1992 MISSOULA WEATHER RADAR CONTINUES TO SHOW STRONG THUNDERSTORMS AROUND WESTERN MONTANA...ALTHOUGH THE PAST COUPLE OF HOURS THEY HAVE BEEN BUILDING RATHER RAPIDLY AND THEN BEGIN TO DECREASE IN INTENSITY NEARLY AS FAST. MOST OF THIS ACTIVITY HAS BEEN OCCURRING FROM JUST NORTHEAST OF MISSOULA SOUTHWARD TO VICINITY OF SALMON IDAHO...HOWEVER SOME THUNDER- STORMS HAVE ALSO DEVELOPED TO THE WEST AND SOUTHWEST OF THE MISSOULA AREA. THIS THUNDERSTORM ACTIVITY IS MOVING GENERALLY TO THE NORTHEAST AT 15 TO 20 MPH. THESE THUNDERSTORMS WILL LIKELY CONTAIN HEAVY RAIN...SOME HAIL...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING. IN ADDITION...A SEVERE THUNDERSTORM WATCH THROUGH THIS EVENING FOR ALL OF WESTERN MONTANA AS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS. REMEMBER...A WATCH MEANS SEVERE THUNDERSTORMS ARE POSSIBLE...BUT NOT ACTUALLY OCCURRING. WARNINGS WILL BE ISSUED FOR SEVERE THUNDERSTORMS AS THEY OCCUR. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL T. V. AND RADIO STATIONS FOR MORE INFORMATION. END/SHARP
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.