Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 9, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 6, 2017, 5:42 PM CST for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 33 min. 3 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
- Mar 6, 2017, 5:42 PM CST (23:42 UTC)
- Expired
- Mar 6, 2017, 6:15 PM CST
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Freeborn County, MN, Steele County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 100 km from the middle of the area, began a volume at 23:42 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 |
|---|---|---|---|
| Mar 6, 6:02 PM CST | TSTM WND DMG | Clarks Grove, MN | HOMES AND BUSINESSES DAMAGED. MANY TREES DOWN WITH POWER OUTAGE. |
| Mar 6, 6:03 PM CST | TSTM WND DMG | Clarks Grove, MN | LARGE GRAIN ELEVATOR COLLAPSED ALONG WITH NUMEROUS REPORTS OF BUILDING DAMAGE AND AROUND TOWN. |
| Mar 6, 6:22 PM CST | TSTM WND DMG | 2 S Clarks Grove, MN | SHED ROOF RIPPED OFF. OLD GARAGE TORN OFF FOUNDATION AND DEMOLISHED. TREES UPROOTED. |
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 |
|---|---|---|---|
| Mar 6, 2:43 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 100 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 622 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 401 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
037
WUUS53 KMPX 062342
SVRMPX
MNC047-147-161-070015-
/O.NEW.KMPX.SV.W.0009.170306T2342Z-170307T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
542 PM CST MON MAR 6 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
North central Freeborn County in south central Minnesota...
Steele County in south central Minnesota...
Southeastern Waseca County in south central Minnesota...
* Until 615 PM CST
* At 541 PM CST, a severe thunderstorm was located near Clarks Grove,
or 10 miles north of Albert Lea, moving northeast at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* This severe thunderstorm will be near,
Ellendale and Geneva around 550 PM CST.
Owatonna around 610 PM CST.
Other locations impacted by this severe thunderstorm include Clinton
Falls, Lemond, Merton, Steele Center, Bixby, and Hope.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CST for south central
Minnesota.
LAT...LON 4383 9360 4420 9328 4419 9312 4416 9304
4393 9305 4368 9335
TIME...MOT...LOC 2341Z 216DEG 43KT 4381 9339
HAIL...1.50IN
WIND...60MPH
$$1 follow-up statement
775
WWUS53 KMPX 062353
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
553 PM CST MON MAR 6 2017
MNC047-161-070003-
/O.CAN.KMPX.SV.W.0009.000000T0000Z-170307T0015Z/
Freeborn MN-Waseca MN-
553 PM CST MON MAR 6 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL FREEBORN AND
SOUTHEASTERN WASECA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CST for south central
Minnesota.
LAT...LON 4405 9341 4420 9328 4419 9312 4416 9304
4393 9305 4384 9315 4385 9340 4385 9341
TIME...MOT...LOC 2353Z 216DEG 43KT 4393 9327
$$
MNC147-070015-
/O.CON.KMPX.SV.W.0009.000000T0000Z-170307T0015Z/
Steele MN-
553 PM CST MON MAR 6 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CST
FOR STEELE COUNTY...
At 553 PM CST, a severe thunderstorm was located near Steele Center,
or 11 miles south of Owatonna, moving northeast at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CST for south central
Minnesota.
LAT...LON 4405 9341 4420 9328 4419 9312 4416 9304
4393 9305 4384 9315 4385 9340 4385 9341
TIME...MOT...LOC 2353Z 216DEG 43KT 4393 9327
HAIL...1.50IN
WIND...60MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 4:04 AM CST | Wind Advisory | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more | 60 hr |
| Mar 6, 3:47 PM CST | Severe Thunderstorm Warning | MPX | Redwood, Renville, Sibley | 43 min |
| Mar 6, 4:10 PM CST | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Watonwan | 35 min |
| Mar 6, 4:28 PM CST | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 47 min |
| Mar 6, 4:32 PM CST | Severe Thunderstorm Warning | MPX | Faribault, Martin | 43 min |
| Mar 6, 4:41 PM CST | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 34 min |
| Mar 6, 4:50 PM CST | Tornado Warning | MPX | Wright | 25 min |
| Mar 6, 4:54 PM CST | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 21 min |
| Mar 6, 5:09 PM CST | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Freeborn, Steele, Waseca | 36 min |
| Mar 6, 5:11 PM CST | Severe Thunderstorm Warning | MPX | Sherburne, Wright | 34 min |
| Mar 6, 5:26 PM CST | Tornado Warning | MPX | Sherburne, Wright | 20 min |
| Mar 6, 5:44 PM CST | Tornado Warning | MPX | Isanti, Mille Lacs, Sherburne | 31 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017
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.