Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 101, NWS Grand Forks, ND

July 4, 2000Nelson County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 4, 2000, 7:57 PM CDT for Nelson County, North Dakota. It was in force for 28 min. No storm report in the archive falls 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.

The facts

Issued
Jul 4, 2000, 7:57 PM CDT (00:57 UTC)
Expired
Jul 4, 2000, 8:25 PM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Nelson County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 73 km from the middle of the area, began a volume at 00:57 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.0 hours before the alert went out and 224 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 2000-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1565 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, Bismarck Municip, ND at 00:00Z on 2000-07-05The 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
1565 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
683 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 050058
SVRFAR
NDC035-063-050127-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
757 PM CDT TUE JUL 4 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME WEST CENTRAL GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 825 PM CDT

* AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES EAST OF PEKIN...OR ABOUT 35 MILES
  SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MCVILLE AT 800 PM CDT...

WIND GUwSTS IN EXCESS OF 60 MPH IS POSSIBLE WITH THIS THUNDERSTORM.

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

LAT...LON 4787 9840 4770 9834 4776 9788 4798 9788

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 8:43 PM CDTSevere Thunderstorm WarningFGFBarnes47 min
Jul 4, 9:34 PM CDTSevere Thunderstorm WarningFGFGrand Forks31 min
Jul 4, 10:08 PM CDTSevere Thunderstorm WarningFGFGrand Forks32 min
Jul 4, 10:53 PM CDTSevere Thunderstorm WarningFGFBarnes32 min
Jul 4, 11:10 PM CDTSevere Thunderstorm WarningFGFCass30 min
Jul 4, 11:40 PM CDTSevere Thunderstorm WarningFGFRansom45 min
Jul 4, 11:42 PM CDTSevere Thunderstorm WarningFGFCass43 min
Jul 5, 12:05 AM CDTFlash Flood WarningFGFBarnes, Cass6 hr
Jul 5, 12:25 AM CDTSevere Thunderstorm WarningFGFRansom30 min
Jul 5, 12:38 AM CDTSevere Thunderstorm WarningFGFSargent32 min
Jul 5, 12:54 AM CDTSevere Thunderstorm WarningFGFRichland46 min
Jul 5, 1:16 AM CDTFlash Flood WarningFGFRansom, Richland, Sargent5 hr
Jul 5, 1:21 AM CDTSevere Thunderstorm WarningFGFSargent29 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2000Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.