Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS Grand Forks, ND

June 10, 2012Wadena County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 10, 2012, 3:49 PM CDT for Wadena County, Minnesota. It was in force for 26 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: Jun 10, 2012, 3:49 PM CDT (20:49 UTC)
Expired: Jun 10, 2012, 4:15 PM CDT
In force: 26 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 211 km from the middle of the area, began a volume at 20:49 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
Jun 10, 4:05 PM CDT	HAIL 1	6 Ssw Oylen, MN	SEVERAL LARGETREE BRANCHES WERE BROKEN DOWN AS WELL.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 10, 3:03 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 216 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: 73 J/kg
Mixed-layer CIN: -424 J/kg
Mixed-layer LCL: 1491 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 142 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.

508 
WUUS53 KFGF 102049
SVRFGF
MNC159-102115-
/O.NEW.KFGF.SV.W.0026.120610T2049Z-120610T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
349 PM CDT SUN JUN 10 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WADENA COUNTY IN CENTRAL MINNESOTA...

* UNTIL 415 PM CDT

* AT 345 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS
  LOCATED NEAR VERNDALE...OR 49 MILES SOUTHEAST OF DETROIT LAKES...
  MOVING TO THE NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLUE GRASS AROUND 355 PM CDT.
  OYLEN AND NIMROD AROUND 405 PM CDT.
  HUNTERSVILLE AROUND 415 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4636 9488 4636 9515 4642 9515 4680 9499
      4681 9496 4681 9477 4650 9477
TIME...MOT...LOC 2049Z 209DEG 45KT 4642 9499
WIND...HAIL 60MPH 1.50IN

$$

DTR

2 follow-up statements

119 
WWUS53 KFGF 102101
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
401 PM CDT SUN JUN 10 2012

MNC159-102115-
/O.CON.KFGF.SV.W.0026.000000T0000Z-120610T2115Z/
WADENA MN-
401 PM CDT SUN JUN 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WADENA COUNTY
IN CENTRAL MINNESOTA UNTIL 415 PM CDT...

AT 359 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORM WAS LOCATED 6
MILES SOUTHEAST OF BLUE GRASS...OR 49 MILES SOUTHEAST OF DETROIT
LAKES...MOVING TO THE NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  NIMROD AROUND 410 PM CDT.
  HUNTERSVILLE AROUND 415 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4636 9488 4636 9515 4642 9515 4680 9499
      4681 9496 4681 9477 4650 9477
TIME...MOT...LOC 2102Z 209DEG 44KT 4654 9488

$$

DTR

914 
WWUS53 KFGF 102115
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
415 PM CDT SUN JUN 10 2012

MNC159-102125-
/O.EXP.KFGF.SV.W.0026.000000T0000Z-120610T2115Z/
WADENA MN-
415 PM CDT SUN JUN 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR WADENA COUNTY IN CENTRAL
MINNESOTA HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

THE STORM WAS NEAR OYLEN AND WILL MOVE INTO CASS COUNTY.  

LAT...LON 4636 9488 4636 9515 4642 9515 4680 9499
      4681 9496 4681 9477 4650 9477
TIME...MOT...LOC 2101Z 209DEG 44KT 4653 9489

$$

DTR

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 9:15 PM CDT	Severe Thunderstorm Warning	FGF	Kittson	30 min
Jun 9, 11:50 PM CDT	Special Weather Statement	FGF		55 min
Jun 10, 6:40 AM CDT	Severe Thunderstorm Warning	FGF	Roseau	50 min
Jun 10, 6:46 AM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods, Marshall, Roseau	59 min
Jun 10, 7:36 AM CDT	Special Weather Statement	FGF	Lake of the Woods	24 min
Jun 10, 8:08 AM CDT	Special Weather Statement	FGF	Mahnomen	52 min
Jun 10, 8:34 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Mahnomen, Norman, Polk	41 min
Jun 10, 9:30 AM CDT	Special Weather Statement	FGF	Mahnomen	30 min
Jun 10, 3:23 PM CDT	Special Weather Statement	FGF	Wadena	67 min
Jun 10, 4:09 PM CDT	Special Weather Statement	FGF	Hubbard	66 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.