Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 87, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 25, 1987, 11:13 PM CDT for McLeod County, Meeker County, Renville County, Minnesota. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jul 25, 1987, 11:13 PM CDT (04:13 UTC)
- Expired
- Jul 26, 1987, 12:00 AM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties McLeod County, MN, Meeker County, MN, Renville 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, 4.2 hours before the alert went out and 78 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 KMSP 260413 SVRMSP MNC129-085-093-260500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1113 PM CDT SAT JUL 25 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1200 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF CENTRAL MINNESOTA... EASTERN RENVILLE...MCLEOD AND SOUTHERN MEEKER AT..1107 PM CDT..RADAR WAS INDICATING SEVERE THUNDERSTORMS IN THE ATWATER AND LITCHFIELD AREAS OF SOUTHERN MEEKER COUNTY FROM 10 TO 20 MILES EAST OF WILLMAR. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 35 TO 40 MILES AN HOUR AND WILL BE AFFECTING AREAS NEAR HECTOR..STEWART..COSMOS.. HUTCHINSON AND GLENCOE. REMEMBER SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH..DESTRUCTIVE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN. ALSO SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF ONE IS SPOTTED. COLEMAN
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, 7:28 PM CDT, 3 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST. CLOUD MN 725 PM CDT SAT JUL 25 1987 ...SEVERE THUNDERSTORM WATCH FOR CENTRAL MINNESOTA UNTIL 10PM CDT... AT 7 23PM CDT RADAR SHOWED VERY STRONG THUNDERSTORMS FROM NEAR MILACA TO LITTLE FALLS. THESE STORMS ARE MOVING EAST AT 45 MILES AN HOUR. SOME CITIES IN THE PATH OF THIS STORM ARE MILACA AND FORESTON IN MILLE LACS COUNTY..AND MORA AND BRAHAN IN SOUTHERN KANABEC COUNTY. PEOPLE IN THOSE COcMMUNITIES SHOULD BE READY TO MOVE TO SAFETY IF THESE STORMS BECOME SEVERE. DE VOE
Special weather statement, Jul 25, 7:36 PM CDT, 3 hours 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
730 PM CDT THU JUL 23 1987
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF WEST CENTRAL
AND CENTRAL MINNESOTA UNTIL 10 PM CDT...
AT 730 PM CDT..WEATHER RADAR WAS SHOWING A STRONG THUNDERSTORM ABOUT
25 MILES NORTHEAST OF ST CLOUD NEAR MILACA OF EAST CENTRAL MINNESOTA.
THIS STRONG THUNDERSTORM WAS MOVING RAPIDLY TO THE SOUTHEAST AT 55
MILES AN HOUR AND WILL BE AFFECTING AREAS NEAR CAMBRIDGE..RUSH CITY
..ST CROIX FALLS AND NORTH BRANCH OF ISANTI AND CHISAGO COUNTIES
THROUGH 830 PM.
NO SEVERE WEATHER HAS BEEN REPORTED WITH THIS THUNDERSTORM BUT ITS
FORWARD SPEED HAS INCREASED MARKEDLY SINCE ABOUT 630 PM AND IT
MAY PRODUCE SOME STRONG GUSTY WINDS..SMALL HAIL AND FREQUENT LIGHTNING
STRIKES AS IT MOVES THROUGH PARTS OF EAST CENTRAL MINNESOTA.
<
PERSONS IN ISANTI AND CHISAGO COUNTIES AS WELL AS NEIGHBORING AREAS
SHOULD KEEP ABREAST OF THIS WEATHjER SITUATION AND LISTEN FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
SWANBERGSpecial weather statement, Jul 25, 7:41 PM CDT, 3 hours 32 minutes before
SPECIAL WEATHER STATEMENT ..CORRECTION..
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
730 PM CDT THU JUL 23 1987
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF WEST CENTRAL
AND CENTRAL MINNESOTA UNTIL 10 PM CDT...
AT 730 PM CDT..WEATHER RADAR WAS SHOWING A STRONG THUNDERSTORM ABOUT
25 MILES NORTHEAST OF ST CLOUD NEAR MILACA OF EAST CENTRAL MINNESOTA.
THIS STRONG THUNDERSTORM WAS MOVING RAPIDLY TO THE SOUTHEAST AT 55
MILES AN HOUR AND WILL BE AFFECTING AREAS NEAR CAMBRIDGE..RUSH CITY
..TAYLORS FALLS AND NORTH BRANCH OF ISANTI AND CHISAGO COUNTIES
THROUGH 830 PM.
NO SEVERE WEATHER HAS BEEN REPORTED WITH THIS THUNDERSTORM BUT ITS
FORWARD SPEED HAS INCREASED MARKEDLY SINCE ABOUT 630 PM AND IT
MAY PRODUCE SOME STRONG GUSTY WINDS..SMALL HAIL AND FREQUENT LIGHTNING
STRIKES AS IT MOVES THROUGH PARTS OF EAST CENTRAL MINNESOTA.
<
PERSONS IN ISANTI AND CHISAGO COUNTIES AS WELL AS NEIGHBORING AREnAS
SHOULD KEEP ABREAST OF THIS WEATHER SITUATION AND LISTEN FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
SWANBERGSpecial weather statement, Jul 25, 9:38 PM CDT, 1 hour 35 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, 1 hour 14 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, 14 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
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 3:09 AM CDT | Severe Thunderstorm Warning | MPX | Wabasha, Winona | 21 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; the sounding from the Mesonet's radiosonde archive.