Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 47, NWS Grand Forks, ND

July 18, 2001Griggs County, Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 18, 2001, 7:15 PM CDT for Griggs County, Steele County, North Dakota. It was in force for 45 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
Jul 18, 2001, 7:15 PM CDT (00:15 UTC)
Expired
Jul 18, 2001, 8:00 PM CDT
In force
45 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Griggs County, ND, Steele County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 52 km from the middle of the area, began a volume at 00:18 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
Jul 18, 8:00 PM CDTTornado F0Sharon, NDA brief touchdown was reported.

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.

IssuedProductOfficeLasted
Jul 18, 4:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.3 hours before the alert went out and 229 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 00:00Z on 2001-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2623 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 00:00Z on 2001-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 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
2623 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1396 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

040 
WFUS53 KFGF 190015
TORFAR
NDC035-039-063-091-190200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
715 PM CDT WED JUL 18 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHWESTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...  
  NORTHEASTERN GRIGGS COUNTY IN SOUTHEAST NORTH DAKOTA AND           
  NORTHWESTERN STEELE COUNTY IN SOUTHEAST NORTH DAKOTA.

* UNTIL 800 PM CDT.

* AT 713 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 3 MILES WEST OF ANETA...OR ABOUT 48 MILES WEST OF GRAND
  FORKS...MOVEMENT WAS TO THE EAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...

  ANETA AT 720 PM CDT AND
  SHARON AT 740 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR
NORTHWESTERN MINNESOTA.

LAT...LON 4776 9817 4758 9817 4756 9770 4778 9769


$$
08

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:00 PM CDTTornado WarningFGFPembina45 min
Jul 18, 7:08 PM CDTFlash Flood WarningFGFPembina3 hr
Jul 18, 7:09 PM CDTSevere Thunderstorm WarningFGFGriggs51 min
Jul 18, 7:09 PM CDTTornado WarningFGFNelson51 min
Jul 18, 7:13 PM CDTTornado WarningFGFWalsh47 min
Jul 18, 7:15 PM CDTTornado WarningFGFGrand Forks45 min
Jul 18, 7:17 PM CDTFlash Flood WarningFGFGrand Forks, Nelson3 hr
Jul 18, 7:42 PM CDTSevere Thunderstorm WarningFGFPembina48 min
Jul 18, 7:55 PM CDTSevere Thunderstorm WarningFGFWalsh50 min
Jul 18, 8:00 PM CDTTornado WarningFGFGriggs, Steele45 min
Jul 18, 8:46 PM CDTSevere Thunderstorm WarningFGFBarnes59 min
Jul 18, 10:47 PM CDTSevere Thunderstorm WarningFGFGrand Forks43 min
Jul 18, 11:28 PM CDTSevere Thunderstorm WarningFGFGrand Forks47 min
Jul 18, 11:47 PM CDTTornado WarningFGFGrand Forks28 min
Jul 19, 12:04 AM CDTSevere Thunderstorm WarningFGFTraill41 min
Jul 19, 12:14 AM CDTTornado WarningFGFGrand Forks31 min
Jul 19, 12:27 AM CDTFlash Flood WarningFGFGrand Forks, Traill2 hr
Jul 19, 12:27 AM CDTTornado WarningFGFTraill33 min
Jul 19, 1:59 AM CDTSevere Thunderstorm WarningFGFWalsh46 min
Jul 19, 5:07 AM CDTSevere Thunderstorm WarningFGFRansom23 min
Jul 19, 5:16 AM CDTSevere Thunderstorm WarningFGFRichland44 min
Jul 19, 6:02 AM CDTSevere Thunderstorm WarningFGFCass28 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.