Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 126, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 4, 2014, 7:21 AM CDT for Kanabec County, Minnesota. It was in force for 39 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 4, 2014, 7:21 AM CDT (12:21 UTC)
- Expired
- Sep 4, 2014, 8:00 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 Kanabec County, MN
The radar
The Duluth radar (KDLH), 119 km from the middle of the area, began a volume at 12:20 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 |
|---|---|---|---|
| Sep 4, 7:30 AM CDT | HAIL 1 | Warman, MN | |
| Sep 4, 7:45 AM CDT | HAIL 1 | 9 Nw Quamba, MN | QUARTER SIZED HAIL REPORTED 9 MILES N OF MORA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 4, 5:02 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 0.4 hours before the alert went out and 133 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
- 2001 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 745 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 353 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
253
WUUS53 KMPX 041221
SVRMPX
MNC065-041300-
/O.NEW.KMPX.SV.W.0126.140904T1221Z-140904T1300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
721 AM CDT THU SEP 4 2014
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
KANABEC COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 800 AM CDT
* AT 719 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LAKE MILLE
LACS...AND MOVING EAST AT 60 MPH.
HAZARD...70 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
MOBILE HOMES...ROOFS AND OUTBUILDINGS.
* LOCATIONS IMPACTED INCLUDE...
MORA...KNIFE LAKE...WARMAN...MORA AIRPORT AND QUAMBA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. THIS STORM IS LIKELY PRODUCING
WIDESPREAD WIND DAMAGE ACROSS NORTHERN MILLE LACS COUNTY. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4615 9304 4598 9304 4597 9306 4597 9313
4581 9314 4589 9352 4598 9352 4598 9343
4616 9343 4616 9306
TIME...MOT...LOC 1221Z 278DEG 54KT 4620 9365
HAIL...<.75IN
WIND...70MPH
$$
BORGHOFF2 follow-up statements
149
WWUS53 KMPX 041248
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
748 AM CDT THU SEP 4 2014
MNC065-041300-
/O.CON.KMPX.SV.W.0126.000000T0000Z-140904T1300Z/
KANABEC MN-
748 AM CDT THU SEP 4 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR KANABEC COUNTY
UNTIL 800 AM CDT...
AT 746 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES NORTHEAST OF KNIFE LAKE TO MORA...AND MOVING
EAST AT 50 MPH.
HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE
TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
ROOFS AND OUTBUILDINGS.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF EASTERN KANABEC COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4598 9336 4616 9331 4616 9306 4615 9304
4598 9304 4597 9306 4597 9313 4581 9314
4587 9344
TIME...MOT...LOC 1249Z 267DEG 44KT 4610 9312 4592 9317
HAIL...1.00IN
WIND...70MPH
$$
BORGHOFF346
WWUS53 KMPX 041256
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
756 AM CDT THU SEP 4 2014
MNC065-041307-
/O.EXP.KMPX.SV.W.0126.000000T0000Z-140904T1300Z/
KANABEC MN-
756 AM CDT THU SEP 4 2014
...THE SEVERE THUNDERSTORM WARNING FOR KANABEC COUNTY WILL EXPIRE AT
800 AM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 4598 9336 4616 9331 4616 9306 4615 9304
4598 9304 4597 9306 4597 9313 4581 9314
4587 9344
TIME...MOT...LOC 1257Z 267DEG 44KT 4610 9298 4592 9303
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 7:22 PM CDT | Special Weather Statement | MPX | Chisago, Isanti | 53 min |
| Sep 3, 7:44 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti | 46 min |
| Sep 4, 5:14 AM CDT | Severe Thunderstorm Warning | MPX | Morrison, Todd | 35 min |
| Sep 4, 6:05 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Morrison, Todd | 55 min |
| Sep 4, 6:50 AM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Morrison | 55 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.