Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 77, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 1993, 11:29 AM CDT for Stearns County, Minnesota. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1993, 11:29 AM CDT (16:29 UTC)
- Expired
- Jul 31, 1993, 12:30 PM CDT
- In force
- 61 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Stearns County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 4.5 hours before the alert went out and 111 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
- 3174 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KSTC 311629 RRA SVRSTC MNC145-311730- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 1129 AM CDT SAT JUL 31 1993 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL MINNESOTA ...EASTERN STEARNS COUNTY AT 1130 AM A LINE OF THUNDERSTORMS CONTINUED TO MOVE INTO EASTERN STEARNS COUNTY. THIS STORM HAS A HISTORY OF STRONG WINDS AND HEAVY RAIN. CITIES IN THE PATH OF THIS LINE OF STORMS INCLUDE ALBANY...RICHMOND...AND ST CLOUD. THIS WARNING IS AN EXTENSION OF THE PREVIOUS SEVERE THUNDERSTORM WARNING. YOU 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. PARKIN 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, Jul 31, 8:36 AM CDT, 2 hours 53 minutes before
MNZ016-311545- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 836 AM CDT SAT JUL 31 1993 ...THUNDERSTORMS APPROACHING THE TWIN CITIES METRO AREA... A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN WILL SURGE INTO THE TWIN CITIES THIS MORNING. THIS LINE OF THUNDERSTORMS WILL ARRIVE IN CARVER COUNTY SHORTLY AFTER 900 AM. THESE THUNDERSTORMS WILL MOVE EAST ACROSS THE REST OF METRO AREA AT 40 MPH. LOOK FOR HEAVY RAIN...GUSTY WIND AND FREQUENT LIGHTNING THROUGH THE DOWNTOWN AREA OF MINNEAPOLIS AROUND 930 AM AND ACROSS DAKOTA COUNTY BETWEEN 930 AM AND 1000 AM. THE THUNDERSTORMS HOLD THE POTENTIAL FOR DAMAGING WINDS AND HAIL AS WELL AT DOWNPOURS OF RAIN. URBAN FLOODING IS POSSIBLE IN UNDERPASSES AND LOW LYING AREAS. WJH
Special weather statement, Jul 31, 8:41 AM CDT, 2 hours 48 minutes before
MNZ016-311545- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 836 AM CDT SAT JUL 31 1993 ...THUNDERSTORMS APPROACHING THE TWIN CITIES METRO AREA... A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN WILL SURGE INTO THE TWIN CITIES THIS MORNING. THIS LINE OF THUNDERSTORMS WILL ARRIVE IN CARVER COUNTY SHORTLY AFTER 900 AM. THESE THUNDERSTORMS WILL MOVE EAST ACROSS THE REST OF METRO AREA AT 40 MPH. LOOK FOR HEAVY RAIN...GUSTY WIND AND FREQUENT LIGHTNING THROUGH THE DOWNTOWN AREA OF MINNEAPOLIS AROUND 930 AM AND ACROSS DAKOTA COUNTY BETWEEN 930 AM AND 1000 AM. THE THUNDERSTORMS HOLD THE POTENTIAL FOR DAMAGING WINDS AND HAIL AS WELL AT DOWNPOURS OF RAIN. URBAN FLOODING IS POSSIBLE IN UNDERPASSES AND LOW LYING AREAS. WJH
Special weather statement, Jul 31, 11:00 AM CDT, 29 minutes before
MNZ010>019-312000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1100 AM CDT SAT JUL 31 1993 ...STATUS OF WEATHER WATCHES IN MINNESOTA... FOR SOUTHEASTERN MINNESOTA... A SEVERE THUNDERSTORM AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 3 PM...INCLUDING THE CITIES OF ROCHESTER...RED WING...AND CALEDONIA. THE THREAT OF SEVERE WEATHER REMAINS THERE AND ADDITIONAL RAINFALL ATOP SATURATED GROUND POSES THE THREAT OF FLASH FLOODING THERE. FOR SOUTHWESTERN MINNESOTA... THERE ARE NO WATCHES ANY LONGER IN EFFECT. FOR THE REST OF CENTRAL AND SOUTHERN MINNESOTA... INCLUDING ST CLOUD...THE TWIN CITIES...AND MANKATO...HERE IS AN UPDATE ON YOUR SITUATION. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1 PM. RJN
Special weather statement, Jul 31, 11:01 AM CDT, 28 minutes before
MNZ010>019-312000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1100 AM CDT SAT JUL 31 1993 ...STATUS OF WEATHER WATCHES IN MINNESOTA... FOR SOUTHEASTERN MINNESOTA... A SEVERE THUNDERSTORM AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 3 PM...INCLUDING THE CITIES OF ROCHESTER...RED WING...AND CALEDONIA. THE THREAT OF SEVERE WEATHER REMAINS THERE AND ADDITIONAL RAINFALL ATOP SATURATED GROUND POSES THE THREAT OF FLASH FLOODING THERE. FOR SOUTHWESTERN MINNESOTA... THERE ARE NO WATCHES ANY LONGER IN EFFECT. FOR THE REST OF CENTRAL AND SOUTHERN MINNESOTA... INCLUDING ST CLOUD...THE TWIN CITIES...AND MANKATO...HERE IS AN UPDATE ON YOUR SITUATION. A SEVERE THUNDERSTORM dWATCH REMAINS IN EFFECT UNTIL 1 PM. RJN
Local storm report, Jul 31, 11:25 AM CDT, 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
1125 AM CDT SAT JUL 31 1993
STORM REPORT FOR JULY 31 1993
TIME COUNTY EVENT
900 AM SWIFT IN BENSON...11/2 INCH OF RAIN IN 30 MINUTES.
STREET FLOODING...TREES DOWN OVER POWER LINES.
EST WIND GUSTS 50 MPH.
920 TO MEEKER LITCHFIELD...ROOFS OFF BUILDINGS...TREES DOWN.
930 AM HEAVY RAIN. STORE FRONT GLASS BROKEN.
1000 AM KANDIYOHI WILLMAR...11/2 FOOT WATER OVER SOME STREETS.
1000 AM MEEKER NUMEROUS REPORTS OF WIND DAMAGE WITH ESTIMATED
70 MPH WINDS.
1010 AM SHERBURNE CLEAR LAKE...POWER LINES DOWNS.
1030 AM SHERBURNE BECKER...1/2 INCH RAIN EST GUSTS TO
60 MPH.
FRASERLocal storm report, Jul 31, 11:25 AM CDT, 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
1125 AM CDT SAT JUL 31 1993
STORM REPORT FOR JULY 31 1993
TIME COUNTY EVENT
900 AM SWIFT IN BENSON...11/2 INCH OF RAIN IN 30 MINUTES.
STREET FLOODING...TREES DOWN OVER POWER LINES.
EST WIND GUSTS 50 MPH.
920 TO MEEKER LITCHFIELD...ROOFS OFF BUILDINGS...TREES DOWN.
930 AM HEAVY RAIN. STORE FRONT GLASS BROKEN.
1000 AM KANDIYOHI WILLMAR...11/2 FOOT WATER OVER SOME STREETS.
1000 AM MEEKER NUMEROUS REPORTS OF WIND DAMAGE WITH ESTIMATED
70 MPH WINDS.
1010 AM SHERBURNE CLEAR LAKE...POWER LINES DOWNS.
1030 AM SHERBURNE BECKER...1/2 INCH RAIN EST GUSTS TO
60 MPH.
FRASERThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:33 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Watonwan | 27 min |
| Jul 31, 4:31 AM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 29 min |
| Jul 31, 4:31 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth | 29 min |
| Jul 31, 5:24 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Nicollet | 36 min |
| Jul 31, 5:43 AM CDT | Severe Thunderstorm Warning | MPX | Dodge, Mower | 32 min |
| Jul 31, 8:20 AM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 55 min |
| Jul 31, 8:34 AM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet | 26 min |
| Jul 31, 9:14 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Wright | 61 min |
| Jul 31, 9:14 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 46 min |
| Jul 31, 9:40 AM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 50 min |
| Jul 31, 9:49 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Scott | 43 min |
| Jul 31, 9:50 AM CDT | Severe Thunderstorm Warning | MPX | Steele | 30 min |
| Jul 31, 10:01 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Ramsey, Washington | 59 min |
| Jul 31, 10:03 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 57 min |
| Jul 31, 10:20 AM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 55 min |
| Jul 31, 10:27 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 63 min |
| Jul 31, 10:38 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 52 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.