Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 79, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 9, 1993, 6:57 AM CDT for Fillmore County, Mower County, Minnesota. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1993, 6:57 AM CDT (11:57 UTC)
- Expired
- Aug 9, 1993, 7:45 AM CDT
- In force
- 48 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Fillmore County, MN, Mower County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 12.0 hours before the alert went out and 161 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
- 791 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KRST 091159 RRA SVRRST MNC045-099-091245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROCHESTER MINNESOTA ISSUED BY MINNEAPOLIS MN 657 AM CDT MON AUG 9 1993 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST MINNESOTA ...FILMORE COUNTY...MOWER COUNTY AT 657 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 12 MILES SOUTH OF THE CITY OF ROCHESTER. THE SEVERE THUNDERSTORM WAS MOVING TOWARD THE SOUTHEAST AT 25 MPH. BY 745 AM...THE SEVERE THUNDERSTORM WILL HAVE PASSED NEAR OR THROUGH THE CITIES OF RACINE...WASHINGTON...SPRING VALLEY...AND CHERRY GROVE. EXPECT LARGE HAIL WITH THIS STORM. 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. NAISTAT/REC/JF
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, Aug 9, 1:50 AM CDT, 5 hours 7 minutes before
WIZ003-006-MNZALL-090730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 150 AM CDT MON AUG 9 1993 ...STRONG THUNDERSTORMS CONTINUING IN TWIN CITIES METRO AREA... STRONG THUNDERSTORMS CONTINUED TO RE/DEVELOP OVER THE TWIN CITY METRO AREA AT 130 AM. THE LEADING EDGE OF THESE THUNDERSTORMS WENT FROM...WYOMING JUST NORTH OF THE TWIN CITIES...DOWN THROUGH THE INTERNATIONAL AIRPORT TO HASTINGS. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. THEY ARE STILL CAPABLE OF PRODUCING FREQUENT DEADLY LIGHTNING...SMALL HAIL...AND STRONG GUSTY WINDS... AS WELL AS VERY HEAVY RAINFALL. ONE UNUSUAL FEATURE WITH THESE THUNDERSTORM/S IS...THAT THEY ARE REDEVELOPING RIGHT ACROSS THE TWIN CITY METRO AREA AND THEN...WEAKENING AS THEY MOVE INTO WISCONSIN. THESE THUNDERSTORMS ARE PART OF A WIDE AREA OF RAIN THAT WAS DETECTED BY RADAR OVER MOST OF CENTRAL AND EAST CENTRAL MINNESOTA AND ACROSS WEST CENTRAL AND NORTHWEST WISCONSIN. THE LEADING EDGE OF THE RAIN WENT FROM...BLACK RIVER FALLS TO EAU CLAIRE AND HAYWARD WISCONSIN. THE TRAILING EDGE WENT FROM ALEAXNDRIA TO ST CLOUD DOWN TO LITCHFIELD...GLENCOE...OWATONNA AND ROCHESTER MINNESOTA. MOVEMENT OF THE RAIN WAS TO THE EAST AT 20 MILES AN HOUR. CARLYON
Special weather statement, Aug 9, 1:53 AM CDT, 5 hours 4 minutes before
WIZ003-006-MNZALL-090730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 150 AM CDT MON AUG 9 1993 ...STRONG THUNDERSTORMS CONTINUING IN TWIN CITIES METRO AREA... STRONG THUNDERSTORMS CONTINUED TO RE/DEVELOP OVER THE TWIN CITY METRO AREA AT 130 AM. THE LEADING EDGE OF THESE THUNDERSTORMS WENT FROM...WYOMING JUST NORTH OF THE TWIN CITIES...DOWN THROUGH THE INTERNATIONAL AIRPORT TO HASTINGS. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. THEY ARE STILL CAPABLE OF PRODUCING FREQUENT DEADLY LIGHTNING...SMALL HAIL...AND STRONG GUSTY WINDS... AS WELL AS VERY HEAVY RAINFALL. ONE UNUSUAL FEATURE WITH THESE THUNDERSTORM/S IS...THAT THEY ARE REDEVELOPING RIGHT ACROSS THE TWIN CITY METRO AREA AND THEN...WEAKENING AS THEY MOVE INTO WISCONSIN. THESE THUNDERSTORMS ARE PART OF A WIDE AREA OF RAIN THAT WAS DETECTED BY RADAR OVER MOST OF CENTRAL AND EAST CENTRAL MINNESOTA AND ACROSS WEST CENTRAL AND NORTHWEST WISCONSIN. THE LEADING EDGE OF THE RAIN WENT FROM...BLACK RIVER FALLS TO EAU CLAIRE AND HAYWARD WISCONSIN. THE TRAILING EDGE WENT FROM ALEAXNDRIA TO ST CLOUD DOWN TO LITCHFIELD...GLENCOE...OWATONNA AND ROCHESTER MINNESOTA. MOVEMENT OF THE RAIN WAS TO THE EAST AT 20 MILES AN HOUR. CARLYON
Special weather statement, Aug 9, 4:55 AM CDT, 2 hours 2 minutes before
MNZ010-016-121045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS MN 455 AM CDT MON AUG 9 1993 ...STRONG THUNDERSTORM OVER WEST CENTRAL MINNESOTA... AT 445 AM CDT...THE TWIN CITIES WEATHER RADAR SHOWED A STRONG THUNDERSTORM OVER DOUGLAS COUNTY NEAR THE CITY OF ALEXANDRIA. THIS STORM WAS PRODUCING SOME VERY HEAVY RAINS...DANGEROUS LIGHTNING STRIKES AND POSSIBLY SOME SMALL HAIL. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR AND WILL BE MOVING THROUGH THE OSAKIS AREA BETWEEN 5 AND 530 AM THIS MORNING. PERSONS IN THE PATH OF THIS STORM ESPECIALLY BOATERS ON AREA LAKES SHOULD SEEK SAFE SHELTER UNTIL THE STORM PASSES. THE STORM WAS PART OF A BAND OF SHOWERS AND THUNDERSTORMS THAT EXTENDED ACROSS CENTRAL SECTIONS OF MINNESOTA FROM GLENWOOD UP THROUGH STAPLES TO NEAR PARK RAPIDS. MOVEMENT WAS EAST AT 25 MILES AN HOUR. SES
Special weather statement, Aug 9, 5:05 AM CDT, 1 hour 52 minutes before
WIZ003-006-MNZALL-091230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 505 AM CDT MON AUG 9 1993 ...POWERFULL THUNDERSTORMS IN WEST CENTRAL WISCONSIN AND SOUTHEAST MINNESOTA... AT 445 AM...A BAND OF THUNDERSTORMS WITH TORENTAIL RAIN AND HAIL WAS DETECTED FROM GLENWOOD CITY SOUTH TO ELLSWORTH WISCONSIN DOWN TO RED WING AND KENYON MINNESOTA. THESE STORMS ARE MOVING TO THE EAST AT 25 MPH. EXPECT THEM TO REACH MENOMONIE...DURAND...WABASHA AND ZUMBRO FALLS BY 530 AM. THESE ARE POTENTIALLY DANGEROUS THUNDERSTORMS. IF YOU SEE...BAD WEATHER APPROACHING FIND A DRY AND SAFE PLACE TO STAY. THESE THUNDERSTORMS WERE PART OF A BROAD AREA STEADY RAIN AND SCATTERED STORMS THAT HAS BEEN FALLING ALL NIGHT ACROSS EASTERN MINNESOTA AND WESTERN WISCONSIN. THE STEADY RAIN WAS DETECTED IN AN AREA 130 MILES WIDE. THE TRAILING EDGE OF THIS RAIN AREA WAS EAST OF THE TWIN CITY METRO AREA...WESTERN WISCONSIN AND SOUTHEAST MINNESOTA FROM...GRANTSBURG SOUTH TO HUDSON DOWN TO HASTINGS AND OWATONNA MINNESOTA. MOVEMENT WAS TO THE EAST A 20 MPH. CARLYON
Special weather statement, Aug 9, 5:05 AM CDT, 1 hour 52 minutes before
WIZ003-006-MNZALL-091230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 505 AM CDT MON AUG 9 1993 ...POWERFULL THUNDERSTORMS IN WEST CENTRAL WISCONSIN AND SOUTHEAST MINNESOTA... AT 445 AM...A BAND OF THUNDERSTORMS WITH TORENTAIL RAIN AND HAIL WAS DETECTED FROM GLENWOOD CITY SOUTH TO ELLSWORTH WISCONSIN DOWN TO RED WING AND KENYON MINNESOTA. THESE STORMS ARE MOVING TO THE EAST AT 25 MPH. EXPECT THEM TO REACH MENOMONIE...DURAND...WABASHA AND ZUMBRO FALLS BY 530 AM. THESE ARE POTENTIALLY DANGEROUS THUNDERSTORMS. IF YOU SEE...BAD WEATHER APPROACHING FIND A DRY AND SAFE PLACE TO STAY. THESE THUNDERSTORMS WERE PART OF A BROAD AREA STEADY RAIN AND SCATTERED STORMS THAT HAS BEEN FALLING ALL NIGHT ACROSS EASTERN MINNESOTA AND WESTERN WISCONSIN. THE STEADY RAIN WAS DETECTED IN AN AREA 130 MILES WIDE. THE TRAILING EDGE OF THIS RAIN AREA WAS EAST OF THE TWIN CITY METRO AREA...WESTERN WISCONSIN AND SOUTHEAST MINNESOTA FROM...GRANTSBURG SOUTH TO HUDSON DOWN TO HASTINGS AND OWATONNA MINNESOTA. MOVEMENT WAS TO THE EAST A 20 MPH. CARLYON
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:30 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 45 min |
| Aug 9, 6:25 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 35 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.