Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 179, NWS Twin Cities, MN

August 1, 2017Faribault County, Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 1, 2017, 6:45 PM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 45 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: Aug 1, 2017, 6:45 PM CDT (23:45 UTC)
Expired: Aug 1, 2017, 7:30 PM CDT
In force: 45 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Faribault County, MN, Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 127 km from the middle of the area, began a volume at 23:46 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 12:00Z, 11.8 hours before the alert went out and 126 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 13 J/kg
Mixed-layer CIN: -271 J/kg
Mixed-layer LCL: 1331 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

608 
WUUS53 KMPX 012345
SVRMPX
MNC043-047-020030-
/O.NEW.KMPX.SV.W.0179.170801T2345Z-170802T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
645 PM CDT TUE AUG 1 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  West central Freeborn County in south central Minnesota...
  Eastern Faribault County in south central Minnesota...

* Until 730 PM CDT

* At 645 PM CDT, a severe thunderstorm was located near Minnesota
  Lake, or 23 miles northwest of Albert Lea, moving southeast at 30
  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. 

* This severe thunderstorm will be near,
  Wells around 655 PM CDT. 
  Freeborn around 705 PM CDT. 
  Alden around 715 PM CDT. 
  Mansfield and Conger around 725 PM CDT. 

Other locations impacted by this severe thunderstorm include Walters,
Manchester, Kiester, Albert Lea Airport, Baroda and Brush Creek.

This includes Interstate 90 between mile markers 134 and 157.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4382 9392 4385 9376 4385 9369 4369 9337
      4349 9375 4350 9376
TIME...MOT...LOC 2345Z 327DEG 24KT 4381 9378 

HAIL...1.00IN
WIND...60MPH
 
$$
AMK

3 follow-up statements

394 
WWUS53 KMPX 020009
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
709 PM CDT TUE AUG 1 2017

MNC043-047-020030-
/O.CON.KMPX.SV.W.0179.000000T0000Z-170802T0030Z/
Freeborn MN-Faribault MN-
709 PM CDT TUE AUG 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WEST CENTRAL FREEBORN AND EASTERN FARIBAULT COUNTIES...

At 708 PM CDT, a severe thunderstorm was located near Baroda, or 14
miles west of Albert Lea, moving southeast at 30 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. 

This severe storm will be near...
  Alden around 715 PM CDT. 
  Mansfield and Conger around 725 PM CDT. 

Other locations impacted by this severe thunderstorm include Walters,
Manchester, Kiester, Albert Lea Airport, Baroda and Brush Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4378 9390 4378 9355 4369 9337 4349 9375
      4350 9376
TIME...MOT...LOC 0008Z 327DEG 24KT 4368 9366 

HAIL...1.00IN
WIND...60MPH
 
$$
AMK

908 
WWUS53 KMPX 020022
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
722 PM CDT TUE AUG 1 2017

MNC043-047-020030-
/O.CON.KMPX.SV.W.0179.000000T0000Z-170802T0030Z/
Freeborn MN-Faribault MN-
722 PM CDT TUE AUG 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WEST CENTRAL FREEBORN AND SOUTHEASTERN FARIBAULT COUNTIES...

At 721 PM CDT, a severe thunderstorm was located over Mansfield, or
11 miles west of Albert Lea, moving southeast at 30 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. 

This severe storm will be near...
  Conger around 725 PM CDT. 

Other locations impacted by this severe thunderstorm include Walters,
Manchester, Kiester, Albert Lea Airport, Baroda and Brush Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4370 9386 4377 9353 4369 9337 4349 9375
      4350 9376
TIME...MOT...LOC 0021Z 327DEG 24KT 4361 9359 

HAIL...1.00IN
WIND...60MPH
 
$$
AMK

079 
WWUS53 KMPX 020029
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
729 PM CDT TUE AUG 1 2017

MNC043-047-020039-
/O.EXP.KMPX.SV.W.0179.000000T0000Z-170802T0030Z/
Freeborn MN-Faribault MN-
729 PM CDT TUE AUG 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL FREEBORN AND
SOUTHEASTERN FARIBAULT COUNTIES WILL EXPIRE AT 730 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.

LAT...LON 4370 9386 4377 9353 4369 9337 4349 9375
      4350 9376
TIME...MOT...LOC 0029Z 327DEG 24KT 4357 9356 

$$
AMK

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 1, 3:55 PM CDT	Special Weather Statement	MPX	Rice	35 min
Aug 1, 4:37 PM CDT	Severe Thunderstorm Warning	MPX	Rice, Steele	23 min
Aug 1, 5:21 PM CDT	Special Weather Statement	MPX	Blue Earth	24 min
Aug 1, 5:23 PM CDT	Special Weather Statement	MPX	Steele	37 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.