Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 98, NWS Grand Forks, ND

July 25, 2012Beltrami County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 25, 2012, 5:42 PM CDT for Beltrami County, Minnesota. It was in force for 63 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 25, 2012, 5:42 PM CDT (22:42 UTC)
Expired: Jul 25, 2012, 6:45 PM CDT
In force: 63 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

County Beltrami County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 182 km from the middle of the area, began a volume at 22:41 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

International Fa, MN (KINL), launched 12:00Z, 10.7 hours before the alert went out and 139 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: 461 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 96 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.

399 
WUUS53 KFGF 252242
SVRFGF
MNC007-252345-
/O.NEW.KFGF.SV.W.0098.120725T2242Z-120725T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
542 PM CDT WED JUL 25 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 645 PM CDT

* AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 70 MPH. THE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 9 MILES SOUTHEAST OF SKIME TO 9
  MILES SOUTHEAST OF ESPELIE...MOVING TO THE EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  JELLE...GATES CORNER AND CARMEL AROUND 550 PM CDT.
  MALCOLM AND FOURTOWN AROUND 555 PM CDT.
  THORHULT AROUND 600 PM CDT.
  PONEMAH AROUND 625 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORMS
INCLUDE SHOTLEY AND WASKISH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4781 9452 4796 9527 4800 9526 4802 9524
      4802 9559 4852 9560 4844 9521 4837 9521
      4837 9491 4827 9446
TIME...MOT...LOC 2242Z 290DEG 39KT 4844 9549 4810 9559
WIND...HAIL 70MPH 1.00IN

$$

DK

2 follow-up statements

019 
WWUS53 KFGF 252316
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
616 PM CDT WED JUL 25 2012

MNC007-252345-
/O.CON.KFGF.SV.W.0098.000000T0000Z-120725T2345Z/
BELTRAMI MN-
616 PM CDT WED JUL 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA UNTIL 645 PM CDT...

AT 614 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 8 MILES SOUTH OF OAKS CORNER TO
10 MILES WEST OF PONEMAH...MOVING TO THE EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  PONEMAH AROUND 625 PM CDT.
  SHOTLEY...SAUM AND OTTO AROUND 640 PM CDT.
  WASKISH AROUND 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4781 9452 4796 9527 4798 9526 4800 9526
      4802 9524 4803 9549 4836 9520 4836 9488
      4827 9446
TIME...MOT...LOC 2316Z 290DEG 39KT 4831 9497 4801 9510
WIND...HAIL 60MPH 1.00IN

$$

DK

977 
WWUS53 KFGF 252343
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
643 PM CDT WED JUL 25 2012

MNC007-252353-
/O.EXP.KFGF.SV.W.0098.000000T0000Z-120725T2345Z/
BELTRAMI MN-
643 PM CDT WED JUL 25 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BELTRAMI COUNTY IN
NORTH CENTRAL MINNESOTA WILL EXPIRE AT 645 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.  HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.

LAT...LON 4781 9452 4796 9527 4798 9526 4800 9526
      4802 9524 4803 9549 4836 9520 4836 9488
      4827 9446
TIME...MOT...LOC 2343Z 290DEG 39KT 4821 9456 4791 9469

$$

DK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 10:01 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	59 min
Jul 24, 10:59 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Wilkin	61 min
Jul 24, 11:28 PM CDT	Severe Thunderstorm Warning	FGF	Polk	62 min
Jul 25, 12:01 AM CDT	Areal Flood Advisory	FGF	Clay, Wilkin	10 hr
Jul 25, 12:20 AM CDT	Areal Flood Advisory	FGF	Polk	3 hr
Jul 25, 12:28 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Otter Tail, Wilkin	62 min
Jul 25, 1:08 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard, Otter Tail, Wadena	67 min
Jul 25, 3:18 AM CDT	Areal Flood Advisory	FGF	Becker, Clay, Hubbard, Otter Tail, Wadena, Wilkin	7 hr
Jul 25, 6:02 PM CDT	Special Weather Statement	FGF	Becker, Clearwater, Hubbard, Mahnomen, Otter Tail, Wadena and 1 more	58 min
Jul 25, 6:13 PM CDT	Special Weather Statement	FGF	Lake of the Woods	62 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.