Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 20, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2014, 7:23 PM CDT for Nicollet County, Sibley County, Minnesota. It was in force for 22 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
- May 8, 2014, 7:23 PM CDT (00:23 UTC)
- Expired
- May 8, 2014, 7:45 PM CDT
- In force
- 22 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Nicollet County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 00:23 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 8, 1:46 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.4 hours before the alert went out and 86 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
- 18 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 785 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
674
WUUS53 KMPX 090023
SVRMPX
MNC103-143-090045-
/O.NEW.KMPX.SV.W.0020.140509T0023Z-140509T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
723 PM CDT THU MAY 8 2014
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
SOUTHWESTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...
* UNTIL 745 PM CDT
* AT 718 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES SOUTHEAST
OF FORT RIDGELY STATE PARK...AND MOVING NORTHEAST AT 55 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
SWAN LAKE...GIBBON AND WINTHROP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!
&&
LAT...LON 4440 9465 4443 9470 4446 9468 4446 9463
4451 9462 4463 9449 4463 9427 4450 9430
4437 9459
TIME...MOT...LOC 0022Z 221DEG 48KT 4445 9457
HAIL...1.00IN
WIND...60MPH
$$
JRB2 follow-up statements
559
WWUS53 KMPX 090031
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
731 PM CDT THU MAY 8 2014
MNC103-143-090045-
/O.CON.KMPX.SV.W.0020.000000T0000Z-140509T0045Z/
NICOLLET MN-SIBLEY MN-
731 PM CDT THU MAY 8 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
SIBLEY AND NORTHWESTERN NICOLLET COUNTIES UNTIL 745 PM CDT...
AT 727 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES EAST OF
FORT RIDGELY STATE PARK...AND MOVING NORTHEAST AT 40 MPH.
HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE
TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
ROOFS AND OUTBUILDINGS.
LOCATIONS IMPACTED INCLUDE...
GIBBON AND WINTHROP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!
&&
LAT...LON 4440 9463 4446 9463 4451 9462 4463 9449
4463 9427 4450 9430 4438 9457
TIME...MOT...LOC 0031Z 219DEG 35KT 4448 9452
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
$$
JRB507
WWUS53 KMPX 090040
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
740 PM CDT THU MAY 8 2014
MNC103-090050-
/O.CAN.KMPX.SV.W.0020.000000T0000Z-140509T0045Z/
NICOLLET MN-
740 PM CDT THU MAY 8 2014
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN NICOLLET COUNTY
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4446 9440 4446 9457 4454 9459 4463 9449
4463 9427 4450 9433
TIME...MOT...LOC 0040Z 219DEG 35KT 4455 9444
$$
MNC143-090045-
/O.CON.KMPX.SV.W.0020.000000T0000Z-140509T0045Z/
SIBLEY MN-
740 PM CDT THU MAY 8 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
SIBLEY COUNTY UNTIL 745 PM CDT...
AT 737 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES WEST OF
GAYLORD...AND MOVING NORTHEAST AT 40 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
WINTHROP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!
&&
LAT...LON 4446 9440 4446 9457 4454 9459 4463 9449
4463 9427 4450 9433
TIME...MOT...LOC 0040Z 219DEG 35KT 4455 9444
HAIL...1.00IN
WIND...60MPH
$$
JRBThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:50 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley | 40 min |
| May 8, 8:05 PM CDT | Tornado Warning | MPX | Sibley | 25 min |
| May 8, 8:38 PM CDT | Special Weather Statement | MPX | Anoka, Carver, Hennepin, Isanti | 67 min |
| May 8, 9:33 PM CDT | Special Weather Statement | MPX | Isanti | 42 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.