Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 92, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 1987, 3:09 AM CDT for Wabasha County, Winona County, Minnesota. It was in force for 21 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 26, 1987, 3:09 AM CDT (08:09 UTC)
- Expired
- Jul 26, 1987, 3:30 AM CDT
- In force
- 21 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Wabasha County, MN, Winona County, MN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 26, 3:10 AM CDT | Thunderstorm Wind 0 | Wabasha, MN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 8.2 hours before the alert went out and 149 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
- 2406 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 3.3
- Supercell composite
- 13.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KRST 260809
SVRRST
MNC157-169-260845-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
309 AM CDT SUN JUL 26 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 330 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHEAST MINNESOTA
...NORTHEASTERN WABASHA...NORTHERN WINONA
...INCLUDES THE CITIES OF WABSHA, PLAINVIEW, AND WINONA...
ROCHESTER NATIONAL WEATHER SERVICE RADAR INDICATES A SEVERE
THUNDERSTORM NEAR LAKE CITY MN MOVING SOUTHEAST AT 40 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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 25, 9:38 PM CDT, 5 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST. CLOUD MN 935 PM CDT SAT JUL 25 1987 ...SEVERE THUNDERSTORM WATCH FOR CENTRAL MINNESOTA UNTIL 10PM CDT... AT 932 PM CDT RADAR INDICATED AN VERY STRONG THUNDERSTORM IN WESTERN STEARNS COUNTY NEAR ELROSA...35 MILES WEST OF ST. CLOUD. THIS STORM HAD BEEN INCREASING IN INTENSITY AND MAY PRODUCE STRONG WINDS...HAIL AND WILL HAVE FREQUENT AND DANGEROUS LIGHTNING WITH IT AS IT MOVES SOUTHEAST AT 40 MPH. SOME COMMUNITIES IN THIS STORMS PATH ARE ROSCOE...PAYNESVILLE...SPRING HILL AND ST. MARTIN. PEOPLE IN THESE TOWNS SHOULD BE READY TO MOVE TO SAFETY IF THIS STORM BECOMES SEVERE. DE VOE
Special weather statement, Jul 25, 9:59 PM CDT, 5 hours 10 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
950 PM CDT SAT JUL 25 1987
...SEVERE THUNDERSTORM WATCH IN AFFECT FOR MUCH OF WEST CENTRAL
AND CENTRAL MINNESOTA WILL EXPIRE AT 10 PM CDT...
AT 940 PM CDT..AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED ACROSS
PARTS OF WESTERN AND CENTRAL STEARNS COUNTY TO THE WEST OF ST CLOUD FROM
NEAR ELROSA TO ALBANY OF CENTRAL MINNESOTA.
NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE THUNDERSTORMS BUT BRIEF
HEAVY RAINS..FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL ARE LIKELY WITH
THESE STORMS AS THEY MOVE TO THE SOUTHEAST AT 40 TO 45 MILES AN HOUR.
OTHER SHOWERS AND THUNDERSTORMS .A FEW OF THEM STRONG..WERE OCCURRING
OVER PARTS OF WEST CENTRAL AND NORTHWEST WISCONSIN MAINLY IN AREAS
NORTH AND NORTHEAST OF EAU CLAIRE FROM NEAR BLOOMER TO THORP.
MOVEMENT WAS SOUTHEAST AT 50 TO 55 MILES AN HOUR.
SWANBERGSpecial weather statement, Jul 25, 10:59 PM CDT, 4 hours 10 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1050 PM CDT SAT JUL 25 1987 AT 1055 PM CDT..AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED ACROSS PARTS OF WESTERN..CENTRAL AND EAST CENTRAL MINNESOTA AS WELL AS WESTERN WISCONSIN. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE THUNDERSTORMS BUT BRIEF HEAVY RAINS..FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL AND GUSTY WINDS ARE POSSIBLE WITH THESE STORMS AS THEY MOVE TO THE SOUTHEAST AT 40 MILES AN HOUR. THESE THUNDERSTORMS WILL BE APPROACHING THE TWIN CITY METRO AREA ABOUT 1130 PM CDT. OTHER SHOWERS AND THUNDERSTORMS .A FEW OF THEM STRONG..WERE OCCURRING FROM EAST OF EAU CLAIRE TO NEAR WESTBORO IN WISCONSIN. MOVEMENT WAS SOUTHEAST AT 40 MILES AN HOUR. KME SWANBERG
Special weather statement, Jul 25, 11:59 PM CDT, 3 hours 10 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1150 PM CDT SAT JUL 25 1987 AT 1155 PM CDT..AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED ACROSS PARTS OF WESTERN..CENTRAL AND EAST CENTRAL MINNESOTA AND EXTENDED INTO WESTERN WISCONSIN. THESE VERY STRONG THUNDERSTORMS WERE LOCATED IN THE WESTERN AND NORTHERN PORTIONS OF THE TWIN CITIES METRO AREA AND ARE MOVING TO THE SOUTHEAST AT 40 MILES AN HOUR. IN WISCONSIN INTENSE THUNDERSTORMS WERE LOCATED NEAR BALDWIN AND NEW RICHMOND. THE MAIN THREAT WITH THESE STORMS IS BRIEF HEAVY RAIN..FREQUENT LIGHTNING ..GUSTY WIND AND POSSIBLE HAIL WITH THIS ACTIVITY AS IT MOVES SOUTHEAST RAPIDLY AT 401 MILES AN HOUR. KME
Special weather statement, Jul 26, 2:10 AM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST. CLOUD MN 215 AM CDT SUN JUL 26 1987 ...SEVERE THUNDERSTORM WATCH FOR CENTRAL MINNESOTA UNTIL 7 AM CDT... AT 210 AM CDT RADAR INDICATED THUNDERSTORMS NORTH AND EAST OF A LINE FROM JUST SOUTH OF FARGO NORTH DAKOTA TO ALEXANDRIA TO WILLMAR AND TO THE TWIN CITIES. SOME OF THESE STORMS HAD PRODUCED HEAVY RAIN. BETWEEN 1 AND 2AM CDT SMALL HAIL AND VERY HEAVY RAIN WAS REPORTED IN MEEKER COUNTY AT EDEN VALLEY...AND HEAVY RAIN WAS REPORTED AT DASSEL...35 MILES SOUTH OF ST. CLOUD. NO SEVERE WEATHE HAD BEEN REPORTED. DE VOE
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 11:13 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Renville | 47 min |
| Jul 26, 12:17 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 58 min |
| Jul 26, 2:14 AM CDT | Severe Thunderstorm Warning | MPX | McLeod | 26 min |
| Jul 26, 2:14 AM CDT | Severe Thunderstorm Warning | MPX | Carver | 46 min |
| Jul 26, 3:31 AM CDT | Severe Thunderstorm Warning | MPX | Wabasha, Winona | 29 min |
| Jul 26, 6:17 AM CDT | Severe Thunderstorm Warning | MPX | Morrison, Stearns, Todd | 58 min |
| Jul 26, 9:24 AM CDT | Severe Thunderstorm Warning | MPX | Wright | 36 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1987Every severe thunderstorm warning in 1987
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.