Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 20, NWS Bismarck, ND

July 25, 2001Golden Valley County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 25, 2001, 5:54 PM MDT for Golden Valley County, North Dakota. It was in force for 66 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 25, 2001, 5:54 PM MDT (23:54 UTC)
Expired: Jul 25, 2001, 7:00 PM MDT
In force: 66 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Golden Valley County, ND

The radar

The Bismarck radar (KBIS), 235 km from the middle of the area, began a volume at 23:57 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
Jul 25, 6:20 PM MDT	Hail 1.75	Beach, ND
Jul 25, 6:27 PM MDT	Hail 1.75	Golva, ND	Trained spotter reported ground white from hail and wind gust to 60 mph accompanied the storm.
Jul 25, 6:45 PM MDT	Tornado F2	Golva, ND	The tornado remained in open country but hit a farmstead causing major damage. Windows blown out. Singles and siding ripped off.
Jul 25, 6:45 PM MDT	Hail 2.75	Golva, ND	This is the same storm which produced an f2 tornado 5 miles east...northeast of Golva. Reportes of "rivers" of water and hail caused localize flooding.

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
Jul 25, 5:15 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.9 hours before the alert went out and 240 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: 6 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 647 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 164 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.

000 
WFUS53 KBIS 252356
TORBIS

NDC033-260100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
554 PM MDT WED JUL 25 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  GOLDEN VALLEY COUNTY IN SOUTHWEST NORTH DAKOTA

* UNTIL 700 PM MDT

* AT 554 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  POSSIBLE TORNADO 5 MILES WEST OF BEACH...OR ABOUT 62 MILES         
  NORTHWEST OF BOWMAN...MOVING EAST SOUTHEAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  BEACH AT 605 PM MDT
  GOLVA AT 615 PM MDT
  SENTINEL BUTTE AT 630 PM MDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
WEDNESDAY EVENING FOR WESTERN NORTH DAKOTA.

LAT...LON 4710 10402 46:64 10402 4667 10364 4710 10371

JENSEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 4:40 AM MDT	Severe Thunderstorm Warning	BIS	Bowman	35 min
Jul 25, 5:29 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley	61 min

Nearby

Tornado Warnings in North Dakota, 2001 Every tornado warning in 2001 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.