Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

May 15, 2001Polk County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 15, 2001, 4:12 PM CDT for Polk County, Minnesota. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 15, 2001, 4:12 PM CDT (21:12 UTC)
Expired: May 15, 2001, 4:45 PM CDT
In force: 33 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Polk County, MN

The watch it was issued in

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

Issued	Product	Office	Lasted
May 15, 2:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.2 hours before the alert went out and 248 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: 580 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 152112
SVRFAR
MNC119-152145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
412 PM CDT TUE MAY 15 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL POLK COUNTY IN NORTHWEST MINNESOTA...

* UNTIL 445 PM CDT

* AT 407 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTHEAST OF HAROLD...OR ABOUT 33 MILES
  SOUTHEAST OF GRAND FORKS...MOVEMENT WAS TO THE EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DUGDALE AT 425 PM CDT...
  MENTOR AT 435 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
TUESDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4768 9663 4755 9644 4768 9596 4777 9612
$$
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 3:03 PM CDT	Severe Thunderstorm Warning	FGF	Polk	57 min
May 15, 3:44 PM CDT	Severe Thunderstorm Warning	FGF	Pennington	36 min
May 15, 3:46 PM CDT	Severe Thunderstorm Warning	FGF	Becker	44 min
May 15, 3:50 PM CDT	Tornado Warning	FGF	Pennington, Red Lake	30 min
May 15, 4:20 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wadena	40 min
May 15, 4:21 PM CDT	Tornado Warning	FGF	Pennington, Red Lake	24 min
May 15, 4:32 PM CDT	Severe Thunderstorm Warning	FGF	Becker	28 min
May 15, 4:46 PM CDT	Severe Thunderstorm Warning	FGF	Hubbard	29 min
May 15, 4:47 PM CDT	Tornado Warning	FGF	Beltrami, Clearwater	28 min
May 15, 4:47 PM CDT	Tornado Warning	FGF	Polk	28 min
May 15, 5:11 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Hubbard	49 min
May 15, 5:30 PM CDT	Tornado Warning	FGF	Beltrami	30 min
May 15, 5:36 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	24 min
May 15, 5:45 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	45 min
May 15, 6:01 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	19 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Every severe thunderstorm warning in 2001

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.