Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 249, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 21, 2016, 11:21 PM CDT for Freeborn County, Minnesota. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 21, 2016, 11:21 PM CDT (04:21 UTC)
- Expired
- Sep 22, 2016, 12:00 AM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 04:23 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.4 hours before the alert went out and 134 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
- 144 J/kg
- Mixed-layer CIN
- -361 J/kg
- Mixed-layer LCL
- 641 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 428 m²/s²
- 0-3 km storm-relative helicity
- 596 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 11.6
The text
As transmitted.
463
WUUS53 KMPX 220421
SVRMPX
MNC047-220500-
/O.NEW.KMPX.SV.W.0249.160922T0421Z-160922T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1121 PM CDT WED SEP 21 2016
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL MIDNIGHT CDT
* AT 1120 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR I 90 EXIT 175 TO BARODA...MOVING SOUTHEAST AT
25 MPH.
HAZARD...70 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
MOBILE HOMES...ROOFS...AND OUTBUILDINGS.
* SEVERE THUNDERSTORMS WILL BE NEAR...
HOLLANDALE AROUND 1125 PM CDT.
LONDON AROUND 1145 PM CDT.
EMMONS AND TWIN LAKES AROUND 1200 AM CDT.
OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
MYRTLE...MATAWAN...ALBERT LEA AIRPORT AND MANCHESTER.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 35 BETWEEN MILE MARKERS 1 AND 25.
INTERSTATE 90 BETWEEN MILE MARKERS 143 AND 173.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. A REPORT OF 67 MPH WINDS WAS REPORTED
AT ALBERT LEA AIRPORT. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4359 9365 4385 9364 4385 9305 4350 9305
4350 9364
TIME...MOT...LOC 0420Z 327DEG 21KT 4372 9310 4370 9368
HAIL...<.75IN
WIND...70MPH
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:00 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Wright | 30 min |
| Sep 21, 8:10 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Ramsey | 50 min |
| Sep 21, 8:24 PM CDT | Flash Flood Warning | MPX | Hennepin, Ramsey | 3 hr |
| Sep 21, 10:07 PM CDT | Flash Flood Warning | MPX | Blue Earth, Goodhue, Rice, Steele, Waseca | 7 hr |
| Sep 21, 11:11 PM CDT | Flash Flood Warning | MPX | Anoka, Hennepin | 5 hr |
| Sep 22, 12:23 AM CDT | Flash Flood Warning | MPX | Blue Earth, Faribault, Freeborn, Steele, Waseca | 4 hr |
| Sep 22, 2:21 AM CDT | Special Weather Statement | MPX | Le Sueur, Rice | 3 hr |
| Sep 22, 2:29 AM CDT | Special Weather Statement | MPX | Blue Earth | 3 hr |
| Sep 22, 3:59 AM CDT | Flash Flood Watch | MPX | Blue Earth, Brown, Dakota, Faribault, Freeborn, Goodhue and 9 more | 7 hr |
| Sep 22, 4:48 AM CDT | Areal Flood Warning | MPX | Blue Earth, Faribault, Freeborn, Steele, Waseca | 24 hr |
| Sep 22, 4:57 AM CDT | Areal Flood Warning | MPX | Blue Earth, Goodhue, Le Sueur, Rice, Steele, Waseca | 24 hr |
| Sep 22, 4:57 AM CDT | River Flood Warning | MPX | Goodhue | 70 hr |
| Sep 22, 6:51 AM CDT | Special Weather Statement | MPX | Watonwan | 3 hr |
| Sep 22, 10:57 AM CDT | River Flood Warning | MPX | Goodhue | 43 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2016Every severe thunderstorm warning in 2016
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; radar from the NEXRAD Level II archive.