Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 66, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 21, 2014, 10:13 PM CDT for Stevens County, Minnesota. It was in force for 47 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
- Jul 21, 2014, 10:13 PM CDT (03:13 UTC)
- Expired
- Jul 21, 2014, 11:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Stevens County, MN
The radar
The Aberdeen radar (KABR), 182 km from the middle of the area, began a volume at 03:16 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 21, 9:24 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.2 hours before the alert went out and 198 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
- 4375 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 7.6
The text
As transmitted, in the capitals the NWS used until 2016.
556
WUUS53 KMPX 220313
SVRMPX
MNC149-220400-
/O.NEW.KMPX.SV.W.0066.140722T0313Z-140722T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1013 PM CDT MON JUL 21 2014
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 1100 PM CDT
* AT 1012 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CHARLESVILLE TO 7 MILES NORTHEAST OF COLLIS TO 7
MILES WEST OF GRACEVILLE...AND MOVING EAST AT 55 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
MORRIS...LAKE HATTIE...FISH LAKE...DONNELLY...CHOKIO...ALBERTA...
MORRIS AIRPORT AND HANCOCK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4575 9626 4576 9625 4576 9576 4557 9575
4542 9575 4540 9620 4541 9626 4570 9627
TIME...MOT...LOC 0313Z 288DEG 48KT 4589 9618 4573 9633
4560 9657
HAIL...0.88IN
WIND...60MPH
$$
CLF2 follow-up statements
879
WWUS53 KMPX 220349
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1049 PM CDT MON JUL 21 2014
MNC149-220400-
/O.CON.KMPX.SV.W.0066.000000T0000Z-140722T0400Z/
STEVENS MN-
1049 PM CDT MON JUL 21 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
STEVENS COUNTY UNTIL 1100 PM CDT...
AT 1047 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES EAST OF HOFFMAN TO 10 MILES NORTHEAST OF
MORRIS TO LAKE HATTIE...AND MOVING EAST AT 50 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
HANCOCK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4576 9586 4576 9576 4542 9575 4551 9612
TIME...MOT...LOC 0349Z 282DEG 42KT 4581 9561 4567 9572
4552 9600
HAIL...<.75IN
WIND...60MPH
$$
BORGHOFF175
WWUS53 KMPX 220358
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1058 PM CDT MON JUL 21 2014
MNC149-220408-
/O.EXP.KMPX.SV.W.0066.000000T0000Z-140722T0400Z/
STEVENS MN-
1058 PM CDT MON JUL 21 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STEVENS COUNTY
WILL EXPIRE AT 1100 PM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 4 AM CDT.
LAT...LON 4576 9586 4576 9576 4542 9575 4551 9612
TIME...MOT...LOC 0358Z 282DEG 42KT 4578 9546 4565 9557
4550 9585
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 10:33 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope | 42 min |
| Jul 21, 11:08 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 67 min |
| Jul 21, 11:36 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 39 min |
| Jul 22, 12:11 AM CDT | Special Weather Statement | MPX | Benton, Isanti, Kanabec, Mille Lacs | 79 min |
| Jul 22, 12:47 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs | 58 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2014Every severe thunderstorm warning in 2014
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.