Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 221, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 17, 1996, 12:11 AM CDT for Martin County, Minnesota. It was in force for 49 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
- Oct 17, 1996, 12:11 AM CDT (05:11 UTC)
- Expired
- Oct 17, 1996, 1:00 AM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Martin County, MN
The radar
The Minneapolis radar (KMPX), 152 km from the middle of the area, began a volume at 05:12 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 17, 12:30 AM CDT | Thunderstorm Wind 55 | Fairmont, 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.2 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
- 809 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSP 170512
SVRMSP
MNC091-170600-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1211 AM CDT THU OCT 17 1996
* SEVERE THUNDERSTORM WARNING FOR
MARTIN COUNTY - SOUTH CENTRAL MINNESOTA
* UNTIL 100 AM CDT
* SOME LOCATIONS AFFECTED
FAIRMONT
GRANADA
NORTHROP
WILBERT
* AT 1205 AM LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM 5 MILES
WEST OF FAIRMONT MOVING NORTHEAST tAT 40 MPH.
LARGE HAIL IS LIKELY WITH THIS STORM. GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS!
JUSKIE
&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
Local storm report, Oct 16, 11:31 PM CDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MINNESOTA
1129 PM CDT WED OCT 16 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0709 PM 2 N COURTLAND MN .75 INCH HAIL
10/16/96 NICOLLET
0710 PM 5 SW NEW ULM MN 1 INCH HAIL
10/16/96 BROWN
0759 PM RIVER FALLS WI .75 INCH HAIL
10/16/96 ST CROIX
0825 PM 4 NW COATES MN 1 INCH HAIL
10/16/96 DAKOTA REPORTED BY PARK RANGERThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 7:01 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet | 44 min |
| Oct 16, 7:17 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 58 min |
| Oct 16, 8:17 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 43 min |
| Oct 16, 9:15 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec | 45 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1996Every severe thunderstorm warning in 1996
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; radar from the NEXRAD Level II archive.