Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 4, NWS Grand Forks, ND

May 5, 2000Beltrami County, Lake of the Woods County, Roseau County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 5, 2000, 9:28 PM CDT for Beltrami County, Lake of the Woods County, Roseau County, Minnesota. It was in force for 42 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: May 5, 2000, 9:28 PM CDT (02:28 UTC)
Expired: May 5, 2000, 10:10 PM CDT
In force: 42 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Beltrami County, MN, Lake of the Woods County, MN, Roseau County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 185 km from the middle of the area, began a volume at 02:27 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 5, 9:30 PM CDT	Hail 0.75	Warroad, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 5, 9:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 2.5 hours before the alert went out and 172 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: 443 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1590 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 245 m²/s²
0-3 km storm-relative helicity: 497 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 060229
SVRFAR
MNC007-077-089-135-060310-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
928 PM CDT FRI MAY 5 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTHWESTERN LAKE OF THE WOODS COUNTY IN NORTH CENTRAL
  MINNESOTA
  EXTREME NORTHWESTERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA
  NORTHEASTERN MARSHALL COUNTY IN NORTHWEST MINNESOTA
  EASTERN ROSEAU COUNTY IN NORTHWEST MINNESOTA

* UNTIL 1010 PM CDT

* AT 927 PM CDT...NATIONAL WEATHER SEVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF CASPERSON...OR ABOUT 23
  MILES SOUTH OF ROSEAU...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CASPERSON AT 935 PM CDT
  SKIME AT 940 PM CDT
  GATES CORNER AT 1000 PM CDT

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

LAT...LON 4900 9594 4837 9590 4840 9519 4900 9518

HOPPES
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 8:12 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Roseau	33 min
May 5, 8:44 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Roseau	46 min
May 5, 9:28 PM CDT	Severe Thunderstorm Warning	FGF	Marshall	42 min
May 5, 10:03 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	37 min
May 5, 11:13 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Roseau	32 min
May 5, 11:20 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	30 min
May 6, 12:12 AM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater	28 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.