Alert archive / Montana / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 21, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Jul 23, 1992, 11:30 PM MDT for Custer County, Prairie County, Montana. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1992, 11:30 PM MDT (05:30 UTC)
- Expired
- Jul 24, 1992, 12:30 AM MDT
- In force
- 60 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
Counties Custer County, MT, Prairie County, MT
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 5.5 hours before the alert went out and 203 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
- 937 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1648 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBIL 240531 SVRBIL MTC017-079-240630- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BILLINGS MT 1130 PM MDT THU JUL 23 1992 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM MDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN SOUTHEAST MONTANA ...NORTHERN CUSTER COUNTY...PRAIRIE COUNTY...INCLUDING THE CITIES OF MILES CITY AND TERRY... AT 1125 BILLINGS RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHEAST ROSEBUD COUNTY. THIS STORM WAS MOVING TO THE EAST AT 30 MPH AND WILL BE MOVING THROUGH NORTHERN CUSTER AND PRAIRIE COUNTIES IN THE NEXT HOUR. THIS STORM WAS PRODUCING HEAVY RAIN...HAIL AND STRONG GUSTY WINDS. 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 RAI NS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE 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, Jul 23, 5:40 PM MDT, 5 hours 50 minutes before
WYZ006-007-018-019-050-051-056-057-240115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHERIDAN WY 440 PM MDT THU JUL 23 1992 ...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 10PM FOR SHERIDAN AND JOHNSON COUNTIES... A LINE OF STRONG THUNDERSTORMS EXTENDED FROM JUST NORTHEAST OF SHERIDAN SOUTH INTO JOHNSON COUNTY SOUTH OF BUFFALO. THIS LINE IS MOVING EAST AT 30 MILES AN HOUR. STRONG WINDS...LARGE HAIL...AND DANGEROUS LIGHTNING MAY BE NOTED AS THESE STORMS MOVE EAST. AS THIS LINE MOVES THROUGH EASTERN SECTIONS OF THE AREA...PERSONS NEED TO SEEK A PLACE OF SHELTER. DARROW
Local storm report, Jul 23, 6:31 PM MDT, 4 hours 59 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SHERIDAN WY
630 PM MDT JUL 23 1992
TIME EVENT
350 PM MDT HAIL IN EXCESS OF 3/4 INCH IN WORLAND. FIRST
REPORT WAS FROM SH>ERIFFS DEPARTMENT. NUMEROUS
OTHER REPORTS WERE RECIEVED OF 3/4 INCH HAIL BY
PUBLIC WITH THE LAST ONE BEING AT 406 PM MDT.Special weather statement, Jul 23, 7:01 PM MDT, 4 hours 29 minutes before
WYZ-051-057-240115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHERIDAN WY 701 PM MDT THU JUL 23 1992 ...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELED FOR SHERIDAN AND JOHNSON COUNTIES... THE THUNDERSTORM ACTIVITY WHICH HAD BEEN NOTED AROUND NORTH CENTRAL WYOMING THIS AFTERNOON HAS MOVED EAST. ISOLATED THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING...BUT THEY ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. THEREFORE...THE SEVERE THUNDERSTORM WATCH FOR SHERIDAN AND JOHNSON COUNTIES HAS BEEN CANCELED. EVANS
Special weather statement, Jul 23, 7:21 PM MDT, 4 hours 9 minutes before
MTZ005-006-007-008-009-WYZ001-002-003-004-005-006-240300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 720 PM MDT THU JUL 23 1992 ...SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR PARTS OF CENTRAL AND EASTERN MONTANA UNTIL 10 PM MDT... AT 705 PM MDT...THUNDERSTORMS WITH HEAVY RAINS...POSSIBLE HAIL AND STRONG GUSTY WINDS WERE OVER SOUTHERN POWDER RIVER COUNTY MONTANA OR 25 MILES SOUTH OF BROADUS MONTANA. MOVEMENT WAS NORTHEAST AT 25 MPH. PEOPLE IN POWDER RIVER AND CARTER COUNTIES OF EXTREME SOUTHEAST MONTANA SHOULD KEEP AN EYE ON THESE STORMS UNTIL 9 PM MDT. THUNDERSTORMS WITH HEAVY RAINS WERE ALSO NOTED IN GARFIELD COUNTY AND IN EASTERN WHEATLAND COUNTY OF CENTRAL AND EAST CENTRAL MONTANA. OTHER ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER OTHER SECTIONS OF EAST CENTRAL AND CENTRAL MONTANA. THESE STORMS WERE MOVING EAST AT 25 MPH. KARR
Special weather statement, Jul 23, 8:42 PM MDT, 2 hours 48 minutes before
MTZ005-006-007-008-009-WYZ-005-006-240430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BILLINGS MT 840 PM MDT THU JUL 23 1992 ...SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR PARTS OF CENTRAL AND EASTERN MONTANA UNTIL 10 PM MDT... SEVERE THUNDERSTORMS WERE NO LONGER INDICATED OVER CENTRAL AND EASTERN MONTANA AT 835 PM. HOWEVER...PEOPLE IN AND NEAR THE WATCH AREA SHOULD KEEP AN EYE ON APPROACHING THUNDERSTORMS SHOULD SEVERE STORMS REDEVELOP. AT 830 PM MDT...THUNDERSTORMS WITH HEAVY RAINS AND GUSTY WINDS WERE SOUTH THROUGH SOUTHEAST GREAT FALLS...NORTH OF LEWISTOWN...WEST OF HYSHAM...WEST OF WINNETT...AND SOUTH OF EKALAKA...ALL IN MONTANA. THESE STORMS WERE MOVING EAST TO NORTHEAST AT 25 MPH. OTHER ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER CENTRAL AND EASTERN MONTANA. KARR
Local storm report, Jul 23, 9:05 PM MDT, 2 hours 25 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS, MT
905 PM MDT THU JUL 23 1992
TIME EVENT
330 PM MDT HEAVY RAIN AT RYEGATE MONTANA.
325 PM MDT DIME SIZE HAIL 6 MILES SOUTHWEST OF RYEGATE BY WEATHER
SPOTTER.
436 PM MDT 1/4 INCH HAIL AT ROUNDUP MONTANA.
505 PM MDT PEA TO 1/2 INCH HAIL AT MELSTONE MONTANA.
KARR
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&
PLACE CURSOR HERE-----------------------------The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 10:41 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 64 min |
| Jul 23, 11:10 PM MDT | Tornado Warning | BYZ | Rosebud | 35 min |
| Jul 23, 11:18 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 57 min |
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.