Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 14, NWS Grand Forks, ND

June 20, 2001Grand Forks County, Nelson County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 20, 2001, 1:41 PM CDT for Grand Forks County, Nelson County, North Dakota. It was in force for 34 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
Jun 20, 2001, 1:41 PM CDT (18:41 UTC)
Expired
Jun 20, 2001, 2:15 PM CDT
In force
34 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Grand Forks County, ND, Nelson County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 55 km from the middle of the area, began a volume at 18:41 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.

What was reported inside it

TimeReportWhereRemark
Jun 20, 1:55 PM CDTTornado F0Shawnee, NDA pilot reported a touchdown.

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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 6.7 hours before the alert went out and 249 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2001-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2001-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
5 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
1485 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
66 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 KFGF 201841
TORFAR
NDC035-063-201915-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
141 PM CDT WED JUN 20 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...
  EAST CENTRAL NELSON COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 215 PM CDT

* AT 135 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 10 MILES NORTHWEST OF LOGAN CENTER...OR ABOUT 43 MILES
  SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  LOGAN CENTER AT 200 PM CDT...
  LARIMORE AT 210 PM CDT...
  0KEMPTON AT 215 PM CDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.

LAT...LON 4799 9804 4772 9809 4770 9752 4800 9747


$$



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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:08 PM CDTSevere Thunderstorm WarningFGFEddy37 min
Jun 19, 7:14 PM CDTSevere Thunderstorm WarningFGFNelson31 min
Jun 20, 12:56 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey49 min
Jun 20, 1:14 PM CDTSevere Thunderstorm WarningFGFGrand Forks, Nelson46 min
Jun 20, 1:28 PM CDTTornado WarningFGFBenson, Ramsey32 min
Jun 20, 1:59 PM CDTTornado WarningFGFBenson, Eddy, Nelson31 min
Jun 20, 2:12 PM CDTTornado WarningFGFGrand Forks, Steele, Traill33 min
Jun 20, 2:30 PM CDTTornado WarningFGFEddy, Nelson45 min
Jun 20, 2:45 PM CDTSevere Thunderstorm WarningFGFGrand Forks, Traill45 min
Jun 20, 3:14 PM CDTTornado WarningFGFTraill31 min
Jun 20, 3:16 PM CDTSevere Thunderstorm WarningFGFGriggs, Steele44 min
Jun 20, 3:31 PM CDTSevere Thunderstorm WarningFGFBarnes29 min
Jun 20, 3:45 PM CDTTornado WarningFGFTraill30 min
Jun 20, 4:00 PM CDTSevere Thunderstorm WarningFGFBarnes, Ransom45 min
Jun 20, 4:05 PM CDTSevere Thunderstorm WarningFGFSteele25 min
Jun 20, 4:15 PM CDTSevere Thunderstorm WarningFGFBarnes45 min
Jun 20, 4:28 PM CDTSevere Thunderstorm WarningFGFRichland32 min
Jun 20, 4:32 PM CDTSevere Thunderstorm WarningFGFRansom28 min
Jun 20, 4:57 PM CDTSevere Thunderstorm WarningFGFCass33 min
Jun 20, 5:03 PM CDTSevere Thunderstorm WarningFGFBarnes, Cass42 min

Nearby

Tornado Warnings in North Dakota, 2001Every tornado warning in 2001Tornadoes 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.