Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 80, NWS Twin Cities, MN

August 18, 2014Faribault County, Martin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 18, 2014, 6:32 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 28 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 18, 2014, 6:32 PM CDT (23:32 UTC)
Expired: Aug 18, 2014, 7:00 PM CDT
In force: 28 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Faribault County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 135 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 134 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: 1122 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

646 
WUUS53 KMPX 182332
SVRMPX
MNC043-091-190000-
/O.NEW.KMPX.SV.W.0080.140818T2332Z-140819T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
632 PM CDT MON AUG 18 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHEASTERN MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 700 PM CDT

* AT 628 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHEAST
  OF FAIRMONT...AND MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

  SOURCE...TRAINED WEATHER SPOTTERS. QUARTER SIZE WAS            
  REPORTED NORTH OF FAIRMONT.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLUE EARTH AROUND 655 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE GUCKEEN...WINNEBAGO AND
HUNTLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4379 9402 4359 9407 4364 9451 4382 9448
TIME...MOT...LOC 2332Z 278DEG 27KT 4372 9436

HAIL...1.25IN
WIND...60MPH

$$

1 follow-up statement

138 
WWUS53 KMPX 182350
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
650 PM CDT MON AUG 18 2014

MNC091-190000-
/O.CAN.KMPX.SV.W.0080.000000T0000Z-140819T0000Z/
MARTIN MN-
650 PM CDT MON AUG 18 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MARTIN COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4361 9425 4375 9425 4380 9424 4379 9403
      4377 9402 4359 9407
TIME...MOT...LOC 2350Z 278DEG 27KT 4370 9418

$$

MNC043-190000-
/O.CON.KMPX.SV.W.0080.000000T0000Z-140819T0000Z/
FARIBAULT MN-
650 PM CDT MON AUG 18 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
FARIBAULT COUNTY UNTIL 700 PM CDT...

AT 648 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHWEST
OF BLUE EARTH...AND MOVING EAST 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.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLUE EARTH AROUND 700 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4361 9425 4375 9425 4380 9424 4379 9403
      4377 9402 4359 9407
TIME...MOT...LOC 2350Z 278DEG 27KT 4370 9418

HAIL...1.00IN
WIND...60MPH

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 12:36 AM CDT	Special Weather Statement	MPX	Freeborn	54 min
Aug 18, 1:32 AM CDT	Dense Fog Advisory	MPX	Benton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker and 9 more	7 hr
Aug 18, 6:29 AM CDT	Special Weather Statement	MPX	Todd	46 min
Aug 18, 4:42 PM CDT	Special Weather Statement	MPX	Pope	63 min
Aug 18, 6:07 PM CDT	Special Weather Statement	MPX	Martin	38 min
Aug 18, 6:35 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Waseca	40 min
Aug 18, 6:56 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	34 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.