Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 31, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 12, 1986, 6:24 PM CDT for Carver County, McLeod County, Wright County, Minnesota. It was in force for 6 min.
The area
The counties it named.
The facts
- Issued
- May 12, 1986, 6:24 PM CDT (23:24 UTC)
- Expired
- May 12, 1986, 6:30 PM CDT
- In force
- 6 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Carver County, MN, McLeod County, MN, Wright 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 12:00Z, 11.4 hours before the alert went out and 34 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
- 62 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 93 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 12, 3:40 PM CDT, 2 hours 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 340 PM CST MON MAY 12 1986 .SEVERE THUNDERATORM WATCH REMAINS IN EFFECT TILL 9PM CDT AT 330 PM RADAR SHOWED THUNDERSTORMS DEVELOPING IN WESTERN MINNESOTA AND MOVING EAST NORTHEAST AT 35 MILE AN HOUR. A LARGE THUNDERSTORM CONTAINING VERY HEAVY RAIN..HAIL AND BRIEF GUSTY WINDS WAS MOVING ACROSS THE EXTREME SOUTH PORTION OF MEEKER COUNTY SOUTH OF THE CITY OF COSMOS APPROACHING THE CITY OF CEDAR MILLS MINNESOTA IN SOUTH CENTRAL MEEKER COUNTY. SEVERE THUNDERSTORM WARNINGS ARE IN EFFECT FOR THE COUNTIES SOUTH OF MEEKER COUNTY TRIPLETT/NISTLER
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 3:39 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 26 min |
| May 12, 3:50 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 20 min |
| May 12, 4:10 PM CDT | Severe Thunderstorm Warning | MPX | Redwood, Renville | 50 min |
| May 12, 4:10 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 50 min |
| May 12, 4:41 PM CDT | Tornado Warning | MPX | Carver, McLeod, Wright | 29 min |
| May 12, 5:08 PM CDT | Tornado Warning | MPX | Carver, McLeod, Wright | 2 min |
| May 12, 5:30 PM CDT | Severe Thunderstorm Warning | MPX | Meeker | 60 min |
| May 12, 5:34 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 56 min |
| May 12, 5:34 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 56 min |
| May 12, 6:06 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Wright | 24 min |
| May 12, 6:27 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 33 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1986Every severe thunderstorm warning in 1986
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.