Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 167, NWS Twin Cities, MN

July 19, 2017Faribault County, Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2017, 3:57 PM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 18 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 19, 2017, 3:57 PM CDT (20:57 UTC)
Expired
Jul 19, 2017, 4:15 PM CDT
In force
18 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Faribault County, MN, Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 137 km from the middle of the area, began a volume at 20:57 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.

IssuedProductOfficeLasted
Jul 19, 12:36 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.0 hours before the alert went out and 136 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2017-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2017-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1964 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WUUS53 KMPX 192057
SVRMPX
MNC043-047-192115-
/O.NEW.KMPX.SV.W.0167.170719T2057Z-170719T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
357 PM CDT WED JUL 19 2017

The National Weather Service in The Twin Cities has issued a

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

* Until 415 PM CDT

* At 357 PM CDT, severe thunderstorms were located along a line
  extending from near Waldorf to near Wells to near Elmore, moving
  east at 50 mph.

  HAZARD...60 mph wind gusts and penny size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Severe thunderstorms will be near,
  Wells around 400 PM CDT. 
  Freeborn around 405 PM CDT. 
  Alden, Hartland and Conger around 410 PM CDT. 

Other locations impacted by these severe thunderstorms include
Walters, Kiester, Matawan, Baroda and Brush Creek.

This includes Interstate 90 between mile markers 128 and 151.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4350 9394 4359 9388 4360 9396 4369 9393
      4385 9394 4384 9341 4350 9356
TIME...MOT...LOC 2057Z 277DEG 44KT 4389 9366 4370 9373 4345 9408 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
609 
WWUS53 KMPX 192112
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
412 PM CDT WED JUL 19 2017

MNC043-047-192121-
/O.EXP.KMPX.SV.W.0167.000000T0000Z-170719T2115Z/
Freeborn MN-Faribault MN-
412 PM CDT WED JUL 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN FREEBORN AND EASTERN
FARIBAULT COUNTIES WILL EXPIRE AT 415 PM CDT...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning will be allowed to expire.

A severe thunderstorm watch remains in effect until 600 PM CDT for
south central Minnesota.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Faribault county and all of Freeborn county.

LAT...LON 4350 9394 4359 9388 4360 9396 4369 9393
      4385 9394 4384 9341 4350 9356
TIME...MOT...LOC 2111Z 277DEG 44KT 4387 9345 4368 9352 4343 9387 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 2:06 PM CDTSevere Thunderstorm WarningMPXRedwood39 min
Jul 19, 2:38 PM CDTSevere Thunderstorm WarningMPXBrown, Watonwan52 min
Jul 19, 2:51 PM CDTTornado WarningMPXBrown24 min
Jul 19, 3:11 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet, Watonwan34 min
Jul 19, 3:38 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Rice, Waseca37 min
Jul 19, 3:50 PM CDTSevere Thunderstorm WarningMPXFaribault, Martin40 min
Jul 19, 4:02 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue43 min
Jul 19, 4:06 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn, Steele, Waseca39 min
Jul 19, 4:40 PM CDTSevere Thunderstorm WarningMPXFreeborn20 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.