Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS Grand Forks, ND

June 19, 2012Becker County, Clearwater County, Hubbard County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 2012, 3:59 PM CDT for Becker County, Clearwater County, Hubbard County, Minnesota. It was in force for 27 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 19, 2012, 3:59 PM CDT (20:59 UTC)
Expired: Jun 19, 2012, 4:26 PM CDT
In force: 27 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Becker County, MN, Clearwater County, MN, Hubbard County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 177 km from the middle of the area, began a volume at 21:02 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 19, 4:10 PM CDT	HAIL 1	2 E Two Inlets, MN

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

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.0 hours before the alert went out and 196 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: 748 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 76 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.

629 
WUUS53 KFGF 192059
SVRFGF
MNC005-029-057-192200-
/O.NEW.KFGF.SV.W.0035.120619T2059Z-120619T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
359 PM CDT TUE JUN 19 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BECKER COUNTY IN NORTHWEST MINNESOTA...
  SOUTHERN CLEARWATER COUNTY IN NORTHWEST MINNESOTA...
  NORTHERN HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 500 PM CDT

* AT 355 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
  STORM WAS LOCATED 5 MILES NORTH OF PONSFORD...OR 26 MILES NORTHEAST
  OF DETROIT LAKES...MOVING TO THE NORTHEAST AT 55 MPH.

  HAIL UP TO GOLF BALL SIZE HAIL WAS REPORTED IN THE ROCHERT AREA
  AROUND 340 PM.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TWO INLETS AROUND 405 PM CDT.
  LAKE ITASCA AROUND 410 PM CDT.
  EMMAVILLE AROUND 415 PM CDT.
  LAKE GEORGE AROUND 420 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE KABEKONA...BENEDICT AND NARY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THE STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4740 9482 4741 9468 4714 9467 4689 9554
      4716 9554
TIME...MOT...LOC 2057Z 244DEG 47KT 4705 9536
WIND...HAIL <50MPH 1.00IN

$$

HOPKINS

1 follow-up statement

626 
WWUS53 KFGF 192126
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
426 PM CDT TUE JUN 19 2012

MNC005-029-057-192134-
/O.CAN.KFGF.SV.W.0035.000000T0000Z-120619T2200Z/
HUBBARD MN-BECKER MN-CLEARWATER MN-
426 PM CDT TUE JUN 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HUBBARD COUNTY IN
NORTH CENTRAL MINNESOTA...AND SOUTHERN CLEARWATER AND NORTHEASTERN
BECKER COUNTIES IN NORTHWEST MINNESOTA IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4740 9482 4741 9468 4714 9467 4689 9554
      4716 9554
TIME...MOT...LOC 2124Z 244DEG 39KT 4717 9500

$$

JAR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 12:26 PM CDT	Special Weather Statement	FGF	Hubbard	49 min
Jun 19, 2:28 PM CDT	Special Weather Statement	FGF	Becker	62 min
Jun 19, 3:01 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Otter Tail	59 min
Jun 19, 3:26 PM CDT	Special Weather Statement	FGF	Hubbard	49 min
Jun 19, 5:41 PM CDT	Special Weather Statement	FGF	Clay	64 min
Jun 19, 5:46 PM CDT	Special Weather Statement	FGF	Hubbard	44 min
Jun 19, 6:23 PM CDT	Special Weather Statement	FGF	Grant	52 min
Jun 19, 6:30 PM CDT	Special Weather Statement	FGF	Becker	60 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.