Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 91, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 18, 1993, 8:07 AM CDT for Dodge County, Steele County, Minnesota. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Aug 18, 1993, 8:07 AM CDT (13:07 UTC)
- Expired
- Aug 18, 1993, 8:45 AM CDT
- In force
- 38 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Dodge County, MN, Steele County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 1.1 hours before the alert went out and 102 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
- 12 J/kg
- Mixed-layer CIN
- -421 J/kg
- Mixed-layer LCL
- 1027 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 100 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 KRST 181308 RRA SVRRST MNC147-039-181345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROCHESTER MN 807 AM CDT WED AUG 18 1993 THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL MINNESOTA ...STEELE COUNTY IN SOUTHEAST MINNESOTA ...DODGE COUNTY AT 800AM ROCHESTER RADAR WAS DETECTING A SEVERE THUNDERSTORM 5 MILES TO THE WEST OF OWATONNA. AS THESE THUNDERSTORMS MOVED THROUGH THE CITY OF WASECA...THEY BLEW DOWN QUITE A FEW POWER LINES AS WELL AS SEVERAL TREES. THESE THUNDERSTORMS WERE MOVING TO THE EAST AT 40 MPH AND SHOULD MOVE INTO THE CITY OF WEST CONCORD BY 820AM AND INTO DODGE CENTER BY 830AM. WHEN SEVERE THUNDERSTORMS ARE OCCURRING...STAY INSIDE A STRONG BUILDING. PROTECT YOURSELF FROM DAMAGING WINDS OR HAIL BY KEEPING AWAY FROM WINDOWS. LISTEN TO YOUR RADIO OR TELEVISION... BUT TURN OFF ALL OTHER ELECTRICAL APPLIANCES. DO NOT USE THE PHONE DURING PERIODS OF FREQUENT LIGHTNING. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOE S WITH LITTLE OR NO WARNING. STAY INDOORS...REMAIN CALM AND BE READY TO MOVE QUICKLY TO THE BASEMENT. &
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 18, 6:57 AM CDT, 1 hour 10 minutes before
MNZALL-181500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 650 AM CDT WED AUG 18 1993 SEVERE URBAN FLOODING IS REPORTED AT EXCELSIOR MINNESOTA ON LAKE MINNETONKA. ON SHADY OAK ROAD WATER IS UP TO THE HOOD OF CARS AND REPORTEDLY HAS PONDED. AN URBAN AND SMALL STREAM FLOOD ADVISORY REMAINS VALID FOR THE TWIN CITIES METRO AREA THIS MORNING. WET
Special weather statement, Aug 18, 7:58 AM CDT, 9 minutes before
MNZ016-WIZ003-006-181400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 758 AM CDT WED AUG 18 1993 ...TORRENTIAL RAINS SOUTHEAST METRO AREA AND WEST CENTRAL WISCONSIN... AT 750 AM...TORRENTIAL RAINS EXTENDED FROM EASTERN DAKOTA COUNTY ACROSS PIERCE AND ST CROIX COUNTIES OF WEST CENTRAL WISCONSIN. AN INTENSE LINE OF THUNDERSTORMS THAT EXTENDED FROM NORTHFIELD TO HASTINGS..IN MINNESOTA ..TO RIVER FALLS TO BALDWIN IN WISCONSIN WAS RESPONSIBLE FOR THESE HEAVY RAINS. A SEVERE THUNDERSTORM WARNING FOR DAMAGING WINDS IS STILL IN EFFECT ALONG THIS LINE OF STORM UNTIL 815 AM FOR PIERCE..ST CROIX AND POLD COUNTIES. RAINFALL OVER AN INCH AN HOUR HAS BEEN REPORTED WITH THESE STORMS. THIS AMOUNT OF RAIN IN A RELATIVELY SHORT PERIOD OF TIME IS USUALLY ENOUGH TO CAUSE RAPID RUNOFF AND LOCALIZED FLOODING. CAUTION IS ADVISED AROUND UNDERPASSES..SMALL STREAMS AND DRAINAGE DITCHES WHERE FLOODING IS LIKELY. THE LINE OF INTENSE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. e *L> > 993. ^6WWUS 4 CROSSING THE NO7q4WSUSd& HIS AFTERNOON :a`WWUSH 0XWSUSr: XNORTHERNANCO ISLAND BEFO36WWUS IDERABLE CLOWELL AS A FEW SHS ARE EXPECTED AYHWWNZ 2x6WWUS@ 3U^WSUSz &sWWAK S6WWUSD T8p6WWUSN 0-SsWWAKb 6WWUS x=g6WWUS, PS. LOW CLOUD AND FOG PATCHf~HOURS BUT THIS Wgf6WWUS q6WWUS^ \k WUUS }.sWWAK6 8q6WWUSn 0dbWWIN tL BE MODE RAG FROM 6.3 IP6WWUS NORTH. M`WWUS0 INTENSITY IN FUL]96WWUSR E6WWUSf M=HWWJP THICK CLOUD COVEARIABLE CLOUDI STILL ALLOWMWWUSt E SUNNY PERIODS.Q6WWUSj
Special weather statement, Aug 18, 7:59 AM CDT, 8 minutes before
MNZ016-WIZ003-006-181400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 758 AM CDT WED AUG 18 1993 ...TORRENTIAL RAINS SOUTHEAST METRO AREA AND WEST CENTRAL WISCONSIN... AT 750 AM...TORRENTIAL RAINS EXTENDED FROM EASTERN DAKOTA COUNTY ACROSS PIERCE AND ST CROIX COUNTIES OF WEST CENTRAL WISCONSIN. AN INTENSE LINE OF THUNDERSTORMS THAT EXTENDED FROM NORTHFIELD TO HASTINGS..IN MINNESOTA ..TO RIVER FALLS TO BALDWIN IN WISCONSIN WAS RESPONSIBLE FOR THESE HEAVY RAINS. A SEVERE THUNDERSTORM WARNING FOR DAMAGING WINDS IS STILL IN EFFECT ALONG THIS LINE OF STORM UNTIL 815 AM FOR PIERCE..ST CROIX AND POLD COUNTIES. RAINFALL OVER AN INCH AN HOUR HAS BEEN REPORTED WITH THESE STORMS. THIS AMOUNT OF RAIN IN A RELATIVELY SHORT PERIOD OF TIME IS USUALLY ENOUGH TO CAUSE RAPID RUNOFF AND LOCALIZED FLOODING. CAUTION IS ADVISED AROUND UNDERPASSES..SMALL STREAMS AND DRAINAGE DITCHES WHERE FLOODING IS LIKELY. THE LINE OF INTENSE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Aug 18, 8:02 AM CDT, 5 minutes before
MNZ016-WIZ003-006-181400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 758 AM CDT WED AUG 18 1993 ...TORRENTIAL RAINS SOUTHEAST METRO AREA AND WEST CENTRAL WISCONSIN... AT 750 AM...TORRENTIAL RAINS EXTENDED FROM EASTERN DAKOTA COUNTY ACROSS PIERCE AND ST CROIX COUNTIES OF WEST CENTRAL WISCONSIN. AN INTENSE LINE OF THUNDERSTORMS THAT EXTENDED FROM NORTHFIELD TO HASTINGS..IN MINNESOTA ..TO RIVER FALLS TO BALDWIN IN WISCONSIN WAS RESPONSIBLE FOR THESE HEAVY RAINS. A SEVERE THUNDERSTORM WARNING FOR DAMAGING WINDS IS STILL IN EFFECT ALONG THIS LINE OF STORM UNTIL 815 AM FOR PIERCE..ST CROIX AND POLD COUNTIES. RAINFALL OVER AN INCH AN HOUR HAS BEEN REPORTED WITH THESE STORMS. THIS AMOUNT OF RAIN IN A RELATIVELY SHORT PERIOD OF TIME IS USUALLY ENOUGH TO CAUSE RAPID RUNOFF AND LOCALIZED FLOODING. CAUTION IS ADVISED AROUND UNDERPASSES..SMALL STREAMS AND DRAINAGE DITCHES WHERE FLOODING IS LIKELY. THE LINE OF INTENSE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Aug 18, 8:04 AM CDT, 3 minutes before
MNZ016-WIZ003-006-181400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 758 AM CDT WED AUG 18 1993 ...TORRENTIAL RAINS SOUTHEAST METRO AREA AND WEST CENTRAL WISCONSIN... AT 750 AM...TORRENTIAL RAINS EXTENDED FROM EASTERN DAKOTA COUNTY ACROSS PIERCE AND ST CROIX COUNTIES OF WEST CENTRAL WISCONSIN. AN INTENSE LINE OF THUNDERSTORMS THAT EXTENDED FROM NORTHFIELD TO HASTINGS..IN MINNESOTA ..TO RIVER FALLS TO BALDWIN IN WISCONSIN WAS RESPONSIBLE FOR THESE HEAVY RAINS. A SEVERE THUNDERSTORM WARNING FOR DAMAGING WINDS IS STILL IN EFFECT ALONG THIS LINE OF STORM UNTIL 815 AM FOR PIERCE..ST CROIX AND POLD COUNTIES. RAINFALL OVER AN INCH AN HOUR HAS BEEN REPORTED WITH THESE STORMS. THIS AMOUNT OF RAIN IN A RELATIVELY SHORT PERIOD OF TIME IS USUALLY ENOUGH TO CAUSE RAPID RUNOFF AND LOCALIZED FLOODING. CAUTION IS ADVISED AROUND UNDERPASSES..SMALL STREAMS AND DRAINAGE DITCHES WHERE FLOODING IS LIKELY. THE LINE OF INTENSE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Aug 18, 8:05 AM CDT, 2 minutes before
MNZ016-WIZ003-006-181400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 758 AM CDT WED AUG 18 1993 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.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 4:46 AM CDT | Tornado Warning | MPX | Benton | 29 min |
| Aug 18, 5:20 AM CDT | Severe Thunderstorm Warning | MPX | McLeod, Wright | 40 min |
| Aug 18, 5:24 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 36 min |
| Aug 18, 5:52 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Wright | 53 min |
| Aug 18, 6:46 AM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Nicollet | 44 min |
| Aug 18, 6:58 AM CDT | Severe Thunderstorm Warning | MPX | Ramsey | 30 min |
| Aug 18, 6:58 AM CDT | Severe Thunderstorm Warning | MPX | Chisago, Washington | 47 min |
| Aug 18, 8:45 AM CDT | Severe Thunderstorm Warning | MPX | Olmsted | 15 min |
| Aug 18, 9:04 AM CDT | Severe Thunderstorm Warning | MPX | Wabasha, Winona | 41 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.