Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 5, NWS Twin Cities, MN

May 7, 2014Stevens County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 7, 2014, 2:26 PM CDT for Stevens County, Minnesota. It was in force for 64 min. 1 report 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: May 7, 2014, 2:26 PM CDT (19:26 UTC)
Expired: May 7, 2014, 3:30 PM CDT
In force: 64 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 178 km from the middle of the area, began a volume at 19:28 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
May 7, 2:38 PM CDT	HAIL 2.75	7 Ssw Chokio, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 7.4 hours before the alert went out and 193 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1326 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

172 
WUUS53 KMPX 071926
SVRMPX
MNC149-072030-
/O.NEW.KMPX.SV.W.0005.140507T1926Z-140507T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
226 PM CDT WED MAY 7 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  STEVENS COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 330 PM CDT

* AT 220 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES WEST OF
  ARTICHOKE...AND MOVING NORTHEAST AT 30 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED. IN ADDITION...TWO INCH DIAMETER HAIL WAS 
  REPORTED 10 MILES NORTHEAST OF ORTONVILLE AT 216 PM. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  MORRIS...LAKE HATTIE...CHOKIO...ALBERTA...MORRIS AIRPORT...FISH
  LAKE AND DONNELLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9625 4576 9583 4549 9593 4541 9606
      4540 9624 4541 9626 4570 9627
TIME...MOT...LOC 1926Z 214DEG 24KT 4543 9627

HAIL...1.00IN
WIND...<50MPH

$$

JLT

6 follow-up statements

510 
WWUS53 KMPX 071935
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
235 PM CDT WED MAY 7 2014

MNC149-072030-
/O.CON.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
235 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS COUNTY
UNTIL 330 PM CDT...

AT 231 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ARTICHOKE...
AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAKE HATTIE AROUND 250 PM CDT.
  MORRIS AROUND 310 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE CHOKIO...ALBERTA...MORRIS
AIRPORT AND DONNELLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9625 4576 9583 4549 9593 4541 9606
      4540 9624 4541 9626 4570 9627
TIME...MOT...LOC 1935Z 223DEG 25KT 4547 9619

HAIL...1.00IN
WIND...<50MPH

$$

JLT

562 
WWUS53 KMPX 071946
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
246 PM CDT WED MAY 7 2014

MNC149-072030-
/O.CON.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
246 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS COUNTY
UNTIL 330 PM CDT...

AT 241 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES WEST OF 
LAKE HATTIE...AND MOVING NORTHEAST AT 30 MPH. IN ADDITION...MORE 
STRONG STORMS WERE DEVELOPING IN NORTHWEST STEVENS COUNTY AND MOVING 
NORTHEAST. 

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MORRIS AROUND 310 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE ALBERTA...FISH LAKE...MORRIS
AIRPORT AND DONNELLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9625 4576 9583 4549 9593 4541 9606
      4540 9624 4541 9626 4570 9627
TIME...MOT...LOC 1946Z 223DEG 25KT 4553 9615

HAIL...1.00IN
WIND...<50MPH

$$

JLT

732 
WWUS53 KMPX 071956
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
256 PM CDT WED MAY 7 2014

MNC149-072030-
/O.CON.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
256 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR STEVENS COUNTY
UNTIL 330 PM CDT...

AT 252 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LAKE HATTIE...
AND MOVING NORTHEAST AT 30 MPH.

HAZARD...PING PONG BALL SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE
         TO ROOFS...SIDING...WINDOWS AND VEHICLES.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MORRIS AROUND 315 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE ALBERTA...FISH LAKE...MORRIS
AIRPORT AND DONNELLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9625 4576 9583 4549 9593 4541 9606
      4540 9624 4541 9626 4570 9627
TIME...MOT...LOC 1956Z 223DEG 25KT 4555 9612

HAIL...1.50IN
WIND...<50MPH

$$

JLT

721 
WWUS53 KMPX 072001
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
301 PM CDT WED MAY 7 2014

MNC149-072030-
/O.CON.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
301 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
STEVENS COUNTY UNTIL 330 PM CDT...

AT 259 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LAKE HATTIE...
AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MORRIS AROUND 315 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE FISH LAKE...MORRIS AIRPORT AND
DONNELLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4577 9625 4576 9583 4555 9592 4550 9626
      4570 9627
TIME...MOT...LOC 2002Z 223DEG 25KT 4558 9608

HAIL...1.00IN
WIND...<50MPH

$$

JLT

632 
WWUS53 KMPX 072015
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
315 PM CDT WED MAY 7 2014

MNC149-072030-
/O.CON.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
315 PM CDT WED MAY 7 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
STEVENS COUNTY UNTIL 330 PM CDT...

AT 313 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTHWEST
OF MORRIS...AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
STEVENS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4562 9614 4576 9608 4576 9583 4560 9590
TIME...MOT...LOC 2015Z 223DEG 25KT 4564 9599

HAIL...1.00IN
WIND...<50MPH

$$

JLT

405 
WWUS53 KMPX 072025
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
325 PM CDT WED MAY 7 2014

MNC149-072036-
/O.EXP.KMPX.SV.W.0005.000000T0000Z-140507T2030Z/
STEVENS MN-
325 PM CDT WED MAY 7 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN STEVENS COUNTY WILL
EXPIRE AT 330 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.  HOWEVER...SMALL HAIL IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4562 9614 4576 9608 4576 9583 4560 9590
TIME...MOT...LOC 2026Z 219DEG 29KT 4572 9593

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 2:59 AM CDT	Special Weather Statement	MPX	Martin	46 min
May 7, 4:18 AM CDT	Severe Thunderstorm Warning	MPX	Martin	27 min
May 7, 4:51 AM CDT	Special Weather Statement	MPX	Martin	24 min
May 7, 5:33 AM CDT	Special Weather Statement	MPX	Waseca	27 min
May 7, 6:04 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele	41 min
May 7, 1:39 PM CDT	Special Weather Statement	MPX	Lac qui Parle	36 min
May 7, 6:09 PM CDT	Special Weather Statement	MPX	Faribault, Martin, Watonwan	36 min
May 7, 6:22 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Martin, Watonwan	53 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.