Alert archive / North Dakota / Tornado Warnings in 2000

Tornado Warning 9, NWS Grand Forks, ND

June 19, 2000Cass County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 19, 2000, 7:17 PM CDT for Cass County, North Dakota. It was in force for 28 min. 1 report 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
Jun 19, 2000, 7:17 PM CDT (00:17 UTC)
Expired
Jun 19, 2000, 7:45 PM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Cass County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 66 km from the middle of the area, began a volume at 00:20 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 19, 7:35 PM CDTThunderstorm Wind 55 MFargo, NDAt the main NDSU mesonet site on the northwest edge of Fargo, a 55 knot wind gust was measured.

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

Aberdeen, SD (KABR), launched 00:00Z, 0.3 hours before the alert went out and 243 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, Aberdeen, SD at 00:00Z on 2000-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 609 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2000-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
609 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

848 
WFUS53 KFGF 200017
TORFAR
NDC017-200045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
717 PM CDT MON JUN 19 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 745 PM CDT

* AT 715 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 2 MILES SOUTHWEST OF HORACE...OR ABOUT 11 MILES SOUTHWEST
  OF FARGO...MOVING NORTHEAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  HORACE AT 725 PM CDT
  WILD RICE AT 735 PM CDT
  FARGO AT 745 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.

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:54 PM CDTFlash Flood WarningFGFSteele, Traill3 hr
Jun 19, 7:58 PM CDTFlash Flood WarningFGFCass3 hr
Jun 19, 10:02 PM CDTFlash Flood WarningFGFRansom, Richland4 hr
Jun 19, 10:21 PM CDTSevere Thunderstorm WarningFGFCass29 min
Jun 19, 10:57 PM CDTFlash Flood WarningFGFCass, Traill5 hr
Jun 20, 1:28 AM CDTFlash Flood WarningFGFGrand Forks3 hr
Jun 20, 1:59 AM CDTFlash Flood WarningFGFRansom, Richland2 hr

Nearby

Tornado Warnings in North Dakota, 2000Every tornado warning in 2000Tornadoes 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.