Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 159, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 1994, 4:56 AM CDT for Meeker County, Minnesota. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1994, 4:56 AM CDT (09:56 UTC)
- Expired
- Jul 31, 1994, 5:30 AM CDT
- In force
- 34 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Meeker County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 9.9 hours before the alert went out and 79 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
- 1405 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1199 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KSTC 310956 RRA SVRSTC MNC093-311030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MN ISSUED BY MINNEAPOLIS MN 456 AM CDT SUN JUL 31 1994 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL MINNESOTA ...SOUTHERN MEEKER COUNTY AT 452 AM...GOLFBALL SIZE HAIL WAS REPORTED NEAR STROUT...ABOUT 10 MILES SOUTHWEST OF LITCHFIELD. RADAR INDICATED THE STORM WAS REMAINING STRONG...AND LARGE HAIL IS POSSIBLE THROUGH 530 AM. THE STORM WAS MOVING SOUTHEAST AT 20 MILES AN HOUR...AND SOME CITIES INCLUDED IN THE WARNING ARE STROUT AND GREENLEAF. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL... DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM. PEOPLE IN MOBILE HOMES SHOULD GO TO A STORM SHELTER. & TDK
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 31, 1:47 AM CDT, 3 hours 9 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-310750- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION TO HEADING NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 146 AM CDT SUN JUL 31 1994 ...STRONG THUNDERSTORMS OVER SOUTHWEST AND EAST CENTRAL MINNESOTA... AT 135 AM...STRONG THUNDERSTORMS WERE OCCURRING ABOUT 15 MILES WEST OF WILLMAR IN WEST CENTRAL MINNESOTA...AND JUST NORTH OF SANDSTONE IN EXTREME EAST CENTRAL MINNESOTA. THESE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL...STRONG GUSTY WINDS... VERY HEAVY RAIN...AND FREQUENT DEADLY LIGHTNING. MOVEMENT WAS TO THE SOUTHEAST AT 25 MILES AN HOUR. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD BE READY TO SEEK SAFE SHELTER. THUNDERSHOWERS WERE ALSO SCATTERED FROM SOUTHWEST THROUGH CENTRAL AND EAST CENTRAL MINNESOTA...AND WERE BEGINNING TO MOVE INTO EXTREME NORTHWEST WISCONSIN. THEY WERE MAINLY WEST OF A LINE FROM SUPERIOR WISCONSIN TO AMERY TO FAIRMONT MINNESOTA. MOVEMENT. WAS TO THE SOUTHEAST AT 25 MILES AN HOUR. KRAFT
Special weather statement, Jul 31, 2:00 AM CDT, 2 hours 56 minutes before
MNZ042>044-046-048>051-054>058-064-310800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 200 AM CDT SUN JUL 31 1994 ...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL MINNESOTA... AT 2 AM RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS WAS LOCATED IN WEST-CENTRAL MINNESOTA MAINLY IN KANDIYOHI...BIG STONE AND YELLOW MEDICINE COUNTIES. THESE STORMS WERE MOVING SOUTHEAST AT 25 MPH. AT 145 AM THE YELLOW MEDICINE COUNTY SHERIFFS OFFICE REPORTED HEAVY RAIN IN CANBY AND GRANITE FALLS. AT 150 AM THE SWIFT COUNTY SHERIFFS OFFICE REPORTED HEAVY RAIN IN CLARA CITY...18 MILES SOUTHWEST OF WILLMAR. THESE STORMS ARE CAPABLE OF PRODUCING HAIL...GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND BRIEF HEAVY RAIN AND WILL MOVE THROUGH KANDIYOHI COUNTY BETWEEN 215 AND 3 AM. YOU SHOULD LISTEN FOR STATEMENT AND UPDATES ON LOCAL MEDIA AND NOAA WEATHER RADIO. FRASER
Special weather statement, Jul 31, 2:09 AM CDT, 2 hours 47 minutes before
MNZ042>044-046-048>051-054>058-064-310800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 200 AM CDT SUN JUL 31 1994 ...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL MINNESOTA... AT 2 AM RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS WAS LOCATED IN WEST-CENTRAL MINNESOTA MAINLY IN KANDIYOHI...BIG STONE AND YELLOW MEDICINE COUNTIES. THESE STORMS WERE MOVING SOUTHEAST AT 25 MPH. AT 145 AM THE YELLOW MEDICINE COUNTY SHERIFFS OFFICE REPORTED HEAVY RAIN IN CANBY AND GRANITE FALLS. AT 150 AM THE SWIFT COUNTY SHERIFFS OFFICE REPORTED HEAVY RAIN IN CLARA CITY...18 MILES SOUTHWEST OF WILLMAR. THESE STORMS ARE CAPABLE OF PRODUCING HAIL...GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND BRIEF HEAVY RAIN AND WILL MOVE THROUGH KANDIYOHI COUNTY BETWEEN 215 AND 3 AM. YOU SHOULD LISTEN FOR STATEMENT AND UPDATES ON LOCAL MEDIA AND NOAA WEATHER RADIO. FRASER
Special weather statement, Jul 31, 2:39 AM CDT, 2 hours 17 minutes before
MNZ052-053-059>063-065>070-073-WIZ014>016-023-028-310840- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 239 AM CDT SUN JUL 31 1994 ...STRONG THUNDERSTORMS IN WEST CENTRAL MINNESOTA... STRONG THUNDERSTORMS WERE OCCURRING NEAR WILLMAR IN WEST CENTRAL MINNESOTA AT 235 AM. HAIL...STRONG GUSTY WINDS...VERY HEAVY RAIN...AND LIGHTNING MAY BE EXPECTED. MOVEMENT WAS TO THE SOUTHEAST AT 25 MILES AN HOUR. TOWNS IN THE PATH OF THE STORM INCLUDE WILLMAR AND THORPE. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD BE READY TO SEEK SAFE SHELTER. THUNDERSTORMS WITH VERY HEAVY RAIN WERE ALSO OCCURRING IN THE AITKIN...SANDSTONE AREA OF EXTREME EAST CENTRAL MINNESOTA. OTHER THUNDERSTORMS AND RAINSHOWERS WERE SCATTERED FROM SOUTHWEST THROUGH CENTRAL AND EAST CENTRAL MINNESOTA INTO NORTHWEST WISCONSIN. THEY WERE MAINLY LOCATED TO THE WEST OF A LINE FROM NEAR HAYWARD IN NORTHWEST WISCONSIN TO REDWING MINNESOTA TO OWATONNA TO FAIRMONT. MOVEMENT WAS TO THE SOUTHEAST AT 25 MILES AN HOUR. KRAFT
Special weather statement, Jul 31, 3:55 AM CDT, 1 hour 1 minute before
MNZ057>059-065>067-311000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 355 AM CDT SUN JUL 31 1994 ...A PAIR OF STRONG THUNDERSTORMS IN CENTRAL MINNESOTA... HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAIN ARE POSSIBLE IN AN AREA WEST OF LITCHFIELD AND HUTCHINSON. AT 350 AM...RADAR INDICATED ONE STRONG STORM JUST SOUTHWEST OF GROVE CITY... OR ABOUT 10 MILES SOUTHWEST OF LITCHFIELD. ANOTHER STRONG STORM WAS JUST SOUTHWEST OF COSMOS...OR ABOUT 20 MILES WEST OF HUTCHINSON. HAIL IS LIKELY WITH BOTH STORMS. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS...IF THE STORMS BECOME ANY STRONGER. ALSO... REMEMBER TO STAY AWAY FROM TELEPHONES AND ELECTRICAL APPLIANCES DURING PERIODS OF FREQUENT LIGHTNING. TDK
Special weather statement, Jul 31, 3:56 AM CDT, 1 hour before
MNZ057>059-065>067-311000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 355 AM CDT SUN JUL 31 1994 ...A PAIR OF STRONG THUNDERSTORMS IN CENTRAL MINNESOTA... HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAIN ARE POSSIBLE IN AN AREA WEST OF LITCHFIELD AND HUTCHINSON. AT 350 AM...RADAR INDICATED ONE STRONG STORM JUST SOUTHWEST OF GROVE CITY... OR ABOUT 10 MILES SOUTHWEST OF LITCHFIELD. ANOTHER STRONG STORM WAS JUST SOUTHWEST OF COSMOS...OR ABOUT 20 MILES WEST OF HUTCHINSON. HAIL IS LIKELY WITH BOTH STORMS. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS...IF THE STORMS BECOME ANY STRONGER. ALSO... REMEMBER TO STAY AWAY FROM TELEPHONES AND ELECTRICAL APPLIANCES DURING PERIODS OF FREQUENT LIGHTNING. TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:58 AM CDT | Severe Thunderstorm Warning | MPX | Wright | 32 min |
| Jul 31, 4:15 PM CDT | Severe Thunderstorm Warning | MPX | Olmsted, Wabasha | 45 min |
| Jul 31, 5:05 PM CDT | Severe Thunderstorm Warning | MPX | Fillmore, Mower, Olmsted | 40 min |
| Jul 31, 5:41 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Mower | 34 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994
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.