Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 166, NWS Twin Cities, MN

July 19, 2017Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 2017, 3:50 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 40 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, 3:50 PM CDT (20:50 UTC)
Expired
Jul 19, 2017, 4:30 PM CDT
In force
40 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 159 km from the middle of the area, began a volume at 20:51 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, 8.8 hours before the alert went out and 158 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.

500 
WUUS53 KMPX 192050
SVRMPX
MNC043-091-192130-
/O.NEW.KMPX.SV.W.0166.170719T2050Z-170719T2130Z/

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

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southwestern Faribault County in south central Minnesota...
  Southeastern Martin County in south central Minnesota...

* Until 430 PM CDT

* At 350 PM CDT, a severe thunderstorm was located near East Chain,
  or 11 miles southeast of Fairmont, moving east at 50 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,
  Elmore around 405 PM CDT. 

Other locations impacted by this severe thunderstorm include Wilbert
and East Chain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4351 9461 4362 9456 4359 9384 4350 9396
      4350 9457
TIME...MOT...LOC 2050Z 278DEG 45KT 4350 9433 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
019 
WWUS53 KMPX 192112 RRA
SVSMPX

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

MNC091-192122-
/O.CAN.KMPX.SV.W.0166.000000T0000Z-170719T2130Z/
Martin MN-
412 PM CDT WED JUL 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARTIN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4360 9425 4361 9424 4359 9384 4350 9396
      4350 9425
TIME...MOT...LOC 2112Z 278DEG 45KT 4346 9395 

$$

MNC043-192130-
/O.CON.KMPX.SV.W.0166.000000T0000Z-170719T2130Z/
Faribault MN-
412 PM CDT WED JUL 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHWESTERN FARIBAULT COUNTY...

At 412 PM CDT, a severe thunderstorm was located over Rake, or 21
miles northwest of Forest City, moving east at 50 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 remain over mainly rural areas of
southwestern Faribault County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4360 9425 4361 9424 4359 9384 4350 9396
      4350 9425
TIME...MOT...LOC 2112Z 278DEG 45KT 4346 9395 

HAIL...1.00IN
WIND...60MPH
 
$$
730 
WWUS53 KMPX 192126
SVSMPX

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

MNC043-192136-
/O.EXP.KMPX.SV.W.0166.000000T0000Z-170719T2130Z/
Faribault MN-
426 PM CDT WED JUL 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FARIBAULT COUNTY
WILL EXPIRE AT 430 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

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

LAT...LON 4360 9425 4361 9424 4359 9384 4350 9396
      4350 9425
TIME...MOT...LOC 2126Z 278DEG 45KT 4344 9372 

$$

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, 3:57 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn18 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.