Alert archive / Montana / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 3, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at May 27, 1993, 11:04 PM MDT for Lincoln County, Montana. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- May 27, 1993, 11:04 PM MDT (05:04 UTC)
- Expired
- May 28, 1993, 12:00 AM MDT
- In force
- 56 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Lincoln County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 5.1 hours before the alert went out and 119 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
- 808 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1555 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KFCA 280504 RRA SVRFCA MTC053-280600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KALISPELL MONTANA 1104 PM MDT THU MAY 27 1993 THE NATIONAL WEATHER SERVICE IN KALISPELL MONTANA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST MONTANA ...SOUTHERN LINCOLN COUNTY AT 1100 PM MDT NATIONAL WEATHER SERVICE RADAR IN MISSOULA INDICATED AT SEVERE THUNDERSTORM MOVING INTO SOUTHERN LINCOLN COUNTY. EARLIER THIS STORM DROPPED GOLF-BALL SIZED HAIL NEAR THOMPSON FALLS. WIND GUSTS OF NEARLY 40 MILES AN HOUR WERE ALSO REPORTED. THIS STORM IS MOVING NORTH AT 20 MILES AN HOUR. RADAR INDICATED STORM TOPS OF 37 THOUSAND FEET. SATELLITE PICTURES INDICATED THAT THESE STORMS MAY CONTINUE UNTIL MIDNIGHT MDT. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. 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. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE LATEST INFORMATION ON THIS STORM. NNNN
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 27, 5:10 PM MDT, 5 hours 54 minutes before
MTZ001-260200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KALISPELL MT 510 PM MDT WED MAY 27 1993 THUNDERSTORMS WITH HEAVY RAIN AND WINDS GUSTING TO NEAR 30 MILES AN HOUR WERE MOVING THROUGH FLATHEAD COUNTY EARLY THIS EVENING. NATIONAL WEATHER SERVICE RADAR IN MISSOULA INDICATED THESE STORMS WERE MOVING TO THE SOUTHEAST. THESE STORMS WILL CONTINUE EARLY THIS EVENING BUT SHOULD DECREASE BY SUNSET. MANY OF THESE STORMS CONTAIN FREQUENT LIGHTNING...STRONG GUSTY WINDS...AND BRIEF HEAVY RAIN. PERSONS CAUGHT OUTDOORS SHOULD SEEK SHELTER AWAY FROM TREES AND TALL OBJECTS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR TELEVISION FOR THE LATEST INFORMATION ON THIS STORM. END/DWB
Special weather statement, May 27, 6:47 PM MDT, 4 hours 17 minutes before
SPECIAL WEATHER STATEMENT/NARRATIVE RADAR SUMMARY NATIONAL WEATHER SERVICE MISSOULA, MT 647 PM MDT THU MAY 27 1993 AT 625 PM MDT...INTENSE THUNDERSTORMS WERE MOVING OUT OF NORTHERN IDAHO COUNTY IDAHO AND MOVING INTO RAVALLI AND MINERAL COUNTIES IN MONTANA. RADAR SHOWED AN AREA OF SCATTERED VERY HEAVEY RAIN SHOWERS AND INTENSE THUNDERSTORMS. THESE SHOWERS WERE 155 MILES WIDE AND EXTENDS FROM LEWISTON IDAHO EASTWARD TO BUTTE MONTANA. MAXIMUM TOPS OF THESE THUNDERSTORMS WAS 41 THOUSAND FEET. THE THUNDERSTORMS WERE MOVING NORTH AT 30 MILES AN HOUR END/RDE
Special weather statement, May 27, 6:59 PM MDT, 4 hours 5 minutes before
SPECIAL WEATHER STATEMENT/NARRATIVE RADAR SUMMARY NATIONAL WEATHER SERVICE MISSOULA, MT 647 PM MDT THU MAY 27 1993 AT 625 PM MDT...INTENSE THUNDERSTORMS WERE MOVING OUT OF NORTHERN IDAHO COUNTY IDAHO AND MOVING INTO RAVALLI AND MINERAL COUNTIES IN MONTANA. RADAR SHOWED AN AREA OF SCATTERED VERY HEAVEY RAIN SHOWERS AND INTENSE THUNDERSTORMS. THESE SHOWERS WERE 155 MILES WIDE AND EXTENDS FROM LEWISTON IDAHO EASTWARD TO BUTTE MONTANA. MAXIMUM TOPS OF& THESE THUNDERSTORMS WAS 41 THOUSAND FEET. THE THUNDERSTORMS WERE MOVING NORTH AT 30 MILES AN HOUR END/RDE
Special weather statement, May 27, 9:45 PM MDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA, MT 945 PM MDT THU MAY 27 1993 RADAR INDICATED INTENSE STRONG THUNDERSTORMS WERE IN SANDERS COUNTY NEAR THOMPSOM FALLS MONTANA AND MISSOULA COUNTY SOUTHWEST OF MISSOULA. GOLF BALL SIZE HAIL NEAR THOMPSON FALLS AND FREQUENT DANGEROUS LIGHTING HAVE BEEN REPORTED WITH THESE THUNDERSTORMS. WINDS GUSTING TO 40 MILES AN HOUR HAVE BEEN RECORDED AT MISSOULA AIRPORT. VERY HEAVY RAIN IS ALSO EXPECTED WITH THESE THUNDERSTORMS. WHEN THESE STORMS APPRAOCH SEEK SHELTER. THESE STORMS ARE MOVING NORTH AT 25 MILES AN HOUR. END/RDE
Special weather statement, May 27, 9:58 PM MDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA, MT 945 PM MDT THU MAY 27 1993 RADAR INDICATED INTENSE STRONG THUNDERSTORMS WERE IN SANDERS COUNTY NEAR THOMPSOM FALLS MONTANA AND MISSOULA COUNTY SOUTHWEST OF MISSOULA. GOLF BALL SIZE HAIL NEAR THOMPSON FALLS AND FREQUENT DANGEROUS LIGHTING HAVE BEEN REPORTED WITH THESE THUNDERSTORMS. WINDS GUSTING TO 40 MILES AN HOUR HAVE BEEN RECORDED AT MISSOULA AIRPORT. VERY HEAVY RAIN IS ALSO EXPECTED WITH THESE THUNDERSTORMS. WHEN THESE STORMS APPRAOCH SEEK SHELTER. THESE STORMS ARE MOVING NORTH AT 25 MILES AN HOUR. 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 28, 4:31 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Ravalli | 119 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.