Alert archive / Minnesota / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 104, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 27, 1987, 8:13 PM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1987, 8:13 PM CDT (01:13 UTC)
- Expired
- Jul 27, 1987, 9:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Faribault County, MN, Freeborn 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, 1.2 hours before the alert went out and 131 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
- 1859 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 1071 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KRST 280113
SVRRST
MNC043-047-280200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
813 PM CDT MON JUL 27 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL MINNESOTA
...EASTERN FARIBAULT...FREEBORN
AT 815 PM CDT RADAR INDICATES A SEVERE THUNDERSTORM 15 MILES
NORTHWEST OF ALBERT LEA MN MOVING SOUTH AT 20 MPH. THIS WARNING
INCLUDES THE CITIES OF ALBERT LEA AND WELLS.
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.
BUSSWhat 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 27, 6:43 PM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 642 PM CDT MON JUL 27 1986 INTENSE THUNDERSTORMS CONTINUED OVER STEELE AND WASECA COUNTIES NEAR THE TOWNS OF WASECA...NEW RICHMOND...BLOOMING AND OWATONNA. THESE STORMS ARE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS AND VERY HEAVY RAINS. THE STORMS WERE MOVING TO THE SOUTHWEST AT 25 MILES AN HOUR. THE STORMS WILL BE MOVING INTO FARIBAULT AND NORTHWEST FREEBORN COUNTIES AROUND 7 PM CDT. PERSONS IN THESE COUNTIES INCLUDING THE TOWNS OF WELLS... BLUE EARTH AND BRUSH CREEK SHOULD BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES. STRONG THUNDERSTORMS WERE LOCATED ABOUT 40 MILES SOUTHWEST OF THE TWIN CITIES FROM GLENCOE TO GAYLORD TO LE SUEUR IN SIBLEY COUNTY. THESE STORMS WERE ALSO MOVING SOUTHWEST AT 25 MILES AN HOUR. PERSONS IN WINTHROP AND NICOLLET SHOULD TAKE SHELTER IF THREATENING WEATHER APPROACHES.
Special weather statement, Jul 27, 8:00 PM CDT, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 758 PM CDT MON JUL 27 1986 THE NATIONAL WEATHER SERVICE HAS CANCELED THE SEVERE THUNDERSTORM WARNING FOR SIBLEY COUNTY OF SOUTH CENTRAL MINNESOTA. THE WARNING WAS TO HAVE EXPIRED AT 815 PM CDT. THE THUNDERSTORM LOCATED NEAR GAYLORD HAS WEAKENED CONSIDERABLY REDUCING THE THREAT OF SEVERE WEATHER. JHM
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:24 PM CDT | Severe Thunderstorm Warning | MPX | Sibley | 51 min |
| Jul 27, 7:26 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 49 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.