Alert archive / Montana / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 4, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at May 28, 1993, 4:31 PM MDT for Mineral County, Missoula County, Ravalli County, Montana. It was in force for 119 min.
The area
The counties it named.
The facts
- Issued
- May 28, 1993, 4:31 PM MDT (22:31 UTC)
- Expired
- May 28, 1993, 6:30 PM MDT
- In force
- 119 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
Counties Mineral County, MT, Missoula County, MT, Ravalli County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 10.5 hours before the alert went out and 187 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
- 1631 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 113 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 KMSO 282231 RRA SVRMSO MTC061-063-081-290030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 431 PM MDT FRI MAY 28 1993 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN WEST CENTRAL MONTANA ...SOUTHERN MINERAL COUNTY...MISSOULA COUNTY...RAVALLI COUNTY MISSOULA RADAR INDICATED STRONG THUNDERSTORMS WITH VERY HEAVY RAIN AND HAIL. THE PUBLIC REPORTED 1/2 INCH HAIL BETWEEN HAMILTON AND DARBY AT 4:05 PM MDT. THESE THUNDERSTORMS WILL CONTINUE TO MOVE NORTH AT ABOUT 25 TO 30 MPH FOR THE NEXT SEVERAL HOURS. 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 WHVERE WATER COVERS THE ROAD.
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, May 28, 3:45 PM MDT, 46 minutes before
MTZ001-290400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KALISPELL MT 345 PM MST FRI FEB 28 1993 ...SEVERE THUNDERSTORM WATCH ISSUED FOR LINCOLN AND FLATHEAD COUNTIES UNTIL 900 PM MDT... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR BOTH LINCOLN AND FLATHEAD COUNTIES...INCLUDING THE CITIES OF KALISPELL...LAKESIDE...BIGFORK...COLUMBIA FALLS...AND LIBBY... FROM 300 PM MDT UNTIL 900 PM MDT THIS FRIDAY AFTERNOON AND EVENING. MISSOULA WEATHER RADAR INDICATES STRONG THUNDERSTORMS HAVE DEVELOPED IN THE NORTHCENTRAL MOUNTAINS OF IDAHO. TOPS OF THESE STORMS HAVE REACHED THE 40 THOUSAND FOOT LEVEL. MOVEMENT OF THE STORMS IS TO THE NORTH AT ABOUT 25 KNOTS. THE STORMS WILL LIKELY PRODUCE LARGE HAIL, DANGEROUS LIGHTNING, AND DAMAGING THUNDERSTORM WINDS AS THEY MOVE INTO FLATHEAD AND LINCOLN COUNTIES. RMEMEBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERST ORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS. END/JLP
Special weather statement, May 28, 4:02 PM MDT, 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA, MT 945 PM MDT THU MAY 27 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN MONTANA TONIGHT... RADAR INDICATED INTENSE THUNDERSTORMS AND HEAVY RAIN SHOWERS WERE IN IDAHO AND CLEARWATER COUNTIES MOVING NORTH TOWARD MINERAL...SANDERS AND MISSOULA CONTIES IN MONTANA. FREQUENT DANGEROUS LIGHTNING LARGE HAIL AND STRONG WINDS ARE EXPECTED WITH THESE THUNDERSTORMS. IF YOUR IN THE PATH OF, THESE STORMS SEEK SHELTER. LISTEN TO THIS STATION FOR FURTHER IMFOMATION AS THEY DEVELOPE. END/RDE
Special weather statement, May 28, 4:09 PM MDT, 22 minutes before
SPECIAL WEATHER STATEMENT...COR... NATIONAL WEATHER SERVICE MISSOULA, MT 415 PM MDT FRI MAY 28 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN MONTANA TONIGHT... RADAR INDICATED VERY STRONG THUNDERSTORMS AND HEAVY RAIN SHOWERS WERE IN NORTHERN IDAHO AND CLEARWATER COUNTIES MOVING NORTH TOWARD MINERAL... SANDERS AND MISSOULA COUNTIES IN MONTANA. FREQUENT DANGEROUS LIGHTNING LARGE HAIL AND STRONG WINDS ARE EXPECTED WITH THESE THUNDERST0ORMS. IF YOUR IN THE PATH OF THESE STORMS SEEK SHELTER. LISTEN TO THIS STATION FOR FURTHER IMFOMATION AS THEY DEVELOPE. END/RDE
Special weather statement, May 28, 4:15 PM MDT, 16 minutes before
SPECIAL WEATHER STATEMENT...COR... NATIONAL WEATHER SERVICE MISSOULA, MT 415 PM MDT FRI MAY 28 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN MONTANA TONIGHT... RADAR INDICATED VERY STRONG THUNDERSTORMS AND HEAVY RAIN SHOWERS WERE IN NORTHERN IDAHO AND CLEARWATER COUNTIES MOVING NORTH TOWARD MINERAL... SANDERS AND MISSOULA COUNTIES IN MONTANA. FREQUENT DANGEROUS LIGHTNING LARGE HAIL AND STRONG WINDS ARE EXPECTED WITH THESE THUNDERSTORMS. IF YOUR IN THE PATH OF THESE STORMS SEEK SHELTER. LISTEN TO THIS STATION FOR FURTHER IMFOMATION AS THEY DEVELOPE. END/RDE
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 10:13 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 32 min |
| May 27, 11:04 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 56 min |
Nearby
Severe Thunderstorm Warnings in Montana, 1993Every severe thunderstorm warning in 1993
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.