Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

May 11, 2004Marshall County, Pennington County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 11, 2004, 6:14 PM CDT for Marshall County, Pennington County, Minnesota. It was in force for 31 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 11, 2004, 6:14 PM CDT (23:14 UTC)
Expired: May 11, 2004, 6:45 PM CDT
In force: 31 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

Counties Marshall County, MN, Pennington County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 123 km from the middle of the area, began a volume at 23:16 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 11, 6:20 PM CDT	HAIL 1	Thief River Falls, 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, 11.2 hours before the alert went out and 206 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: 1452 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 468 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.

828 
WUUS53 KFGF 112314
SVRFGF
MNC089-113-112345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
614 PM CDT TUE MAY 11 2004

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  EASTERN MARSHALL COUNTY IN NORTHWEST MINNESOTA
  PENNINGTON COUNTY IN NORTHWEST MINNESOTA

* UNTIL 645 PM CDT.

* AT 607 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTH OF THIEF RIVER FALLS...MOVEMENT
  WAS TO THE NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  MAVIE AT 625 PM...
  GOODRIDGE AT 630 PM AND
  ESPELIE AT 645 PM.

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

LAT...LON 4809 9636 4796 9617 4805 9564 4853 9563
          4853 9602

$$

JCA/LK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 5:43 PM CDT	Severe Thunderstorm Warning	FGF	Wilkin	47 min
May 11, 6:04 PM CDT	Tornado Warning	FGF	Clay, Wilkin	41 min
May 11, 6:41 PM CDT	Severe Thunderstorm Warning	FGF	Polk	34 min
May 11, 6:45 PM CDT	Tornado Warning	FGF	Clay, Wilkin	45 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2004 Every severe thunderstorm warning in 2004

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.