Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 4, 1989, 7:59 PM CDT for Blue Earth County, Faribault County, Martin County, Minnesota. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- May 4, 1989, 7:59 PM CDT (00:59 UTC)
- Expired
- May 4, 1989, 9:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Blue Earth County, MN, Faribault County, MN, Martin County, MN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 1.0 hours before the alert went out and 126 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
- 4 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, May 4, 6:43 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 640 PM CDT THU MAY 4 1989 ...THUNDERSTORMS DEVELOP OVER SOUTHWEST MINNESOTA... AT 626 PM...THUNDERSTORMS HAD DEVELOPED OVER SCATTERED SECTIONS OF SOUTHWEST MINNESOTA...IN A 35 MILE WIDE AREA FROM ALEXANDRIA TO MARSHALL. MOVEMENT WAS TO THE SOUTHEAST AT 35 TO 40 MILES AN HOUR AND SHOULD REACH THE CITIES OF WILLMAR AND REDWOOD FALLS BY 715 PM. WIND GUSTS OF 40 TO 50 MILES AN HOUR AND SMALL HAIL MAY BE EXPECTED WITH THESE STORMS. MOSTLY LIGHT RAINSHOWERS CONTINUED TO FALL OVER EAST CENTRAL AND SOUTHEAST MINNESOTA...AS WELL AS WEST CENTRAL WISCONSIN. THEY WERE EAST OF A LINE FROM HINCKLEY TO MINNEAQPOLIS TO ROCHESTER MINNESOTA. MOVEMENT WAS TO THE EAST AT 20 MILES AN HOUR. KRAFT
Special weather statement, May 4, 7:11 PM CDT, 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 710 PM CDT THU MAY 4 1989 ...THUNDERSTORMS RUMBLE OVER SOUTHWEST MINNESOTA... AT 700 PM...THUNDERSTORMS WERE OCCURRING FROM JUST WEST OF REDWOOD FALLS TO JUST NORTH OF WINDOM...IN SOUTHWEST MINNESOTA. AT 645 PM MARBLE SIZE HAIL WAS REPORTED IN KERKOVEN IN SWIFT COUNTY OF SOUTHWEST MINNESOTA. IN ADDITION TO HAIL...WIND GUSTS OF 40 TO 50 MILES AN HOUR MAY BE EXPECTED WITH vTHESE STORMS. MOVEMENT OF THESE THUNDERSTORMS WAS TO THE SOUTHEAST AT 40 TO 45 MILES AN HOUR. THEY SHOULD REACH THE CITIES OF NEW ULM AND ST JAMES BY 745 PM...AND FAIRMONT BY ABOUT 800 PM. KRAFT
Special weather statement, May 4, 7:42 PM CDT, 17 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 740 PM CDT THU MAY 4 1989 ...THUNDERSTORMS RUMBLE OVER SOUTHWEST MINNESOTA... AT 726 PM...THUNDERSTORMS WERE OCCURRING IN A 40 MILE WIDE AREA FROM ALEXANDRIA TO WILLMAR TO JACKSON IN WEST CENTRAL AND SOUTHWEST MINNESOTA. HAIL AND WIND GUSTS OF 40 TO 50 MILES AN HOUR MAY BE EXPECTED WITH THESE STORMS. MOVEMENT OF THESE THUNDERSTORMS WAS TO THE SOUTHEAST AT 40 TO 45 MILES AN HOUR. THEY SHOULD REACH THE CITIES OF NEW ULM...ST JAMES...AND FAIRMONT BY ABOUT 800 PM... AND REACH MANKATO WINNEBAGO AND FAIRMONT BY 830 PM. LIGHT RAINSHOWERS WERE FALLING OVER WEST CENTRAL WISCONSIN IN THE AMERY...ELLSWORTH AREA. MOVEMENT WAS TO THE EAST AT 20 MILES AN HOUR. KRAFT
Nearby
Severe Thunderstorm Warnings in Minnesota, 1989Every severe thunderstorm warning in 1989
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.