Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 62, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 1989, 10:19 PM CDT for Martin County, Minnesota. It was in force for 26 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 10, 1989, 10:19 PM CDT (03:19 UTC)
- Expired
- Jul 10, 1989, 10:45 PM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Martin 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 10, 10:30 PM CDT | Thunderstorm Wind 0 | Martin, 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, 3.3 hours before the alert went out and 151 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
- 295 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 1760 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 125 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, Jul 10, 8:53 PM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 850 PM CDT MON JUL 10 1989 ..SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1 AM CDT FOR PARTS OF SOUTHWEST AND WEST CENTRAL MINNESOTA.. WEATHER RADAR CONTINUED TO INDICATE STRONG THUNDERSTORMS ACROSS SOUTHWEST MINNESOTA GENERALLY ALONG AND WEST OF A MARSHALL..SLAYTON.. LAKEFIELD..TO JACKSON LINE. THE STRONGEST THUNDERSTORM IN THIS AREA WAS JUST SOUTHWEST OF LAKEFIELD AND JACKSON NEAR THE IOWA BORDER. THIS STORM WILL PRODUCE FREQUENT LIGHTNING STRIKES..LOCALLY HEAVY RAINS ..STRONG GUSTY WINDS AND POSSIBLE HAIL AS IT MOVES NORTHEAST AT 20 MILES AN HOUR. PERSONS IN SOUTHWEST MINNESOTA AND ESPECIALLY JACKSON AND COTTONWOOD COUNTIES SHOULD KEEP ABREAST OF THIS WEATHER SITUATION AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 9:51 PM CDT | Severe Thunderstorm Warning | MPX | Martin, Watonwan | 54 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.