Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 261, NWS Grand Forks, ND

September 2, 2000Ransom County, Richland County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Sep 2, 2000, 4:32 PM CDT for Ransom County, Richland 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
Sep 2, 2000, 4:32 PM CDT (21:32 UTC)
Expired
Sep 2, 2000, 5:00 PM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Ransom County, ND, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 112 km from the middle of the area, began a volume at 21:36 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

Aberdeen, SD (KABR), launched 12:00Z, 9.5 hours before the alert went out and 197 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 12:00Z on 2000-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2000-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

364 
WUUS53 KFGF 022132
SVRFAR
NDC073-077-022200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
432 PM CDT SAT SEP 2 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA...
  NORTHWESTERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 500 PM CDT

* AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER VENLO...OR ABOUT 39 MILES SOUTHWEST OF
  FARGO...MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF
  EASTERN RANSOM COUNTY...
  NORTHEASTERN RANSOM COUNTY...
  NORTHEASTERN RANSOM COUNTY...
  EXTREME NORTHEASTERN RANSOM COUNTY

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

LAT...LON 4650 9760 4637 9742 4662 9701 4662 9731

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 11:29 AM CDTSevere Thunderstorm WarningFGFBarnes, Cass31 min
Sep 2, 11:56 AM CDTSevere Thunderstorm WarningFGFCass34 min
Sep 2, 12:21 PM CDTSevere Thunderstorm WarningFGFRansom29 min
Sep 2, 12:43 PM CDTSevere Thunderstorm WarningFGFBarnes, Cass32 min
Sep 2, 1:40 PM CDTSevere Thunderstorm WarningFGFRansom30 min
Sep 2, 1:45 PM CDTSevere Thunderstorm WarningFGFSargent30 min
Sep 2, 2:18 PM CDTSevere Thunderstorm WarningFGFRansom, Richland32 min
Sep 2, 2:43 PM CDTSevere Thunderstorm WarningFGFCass32 min
Sep 2, 3:28 PM CDTSevere Thunderstorm WarningFGFRansom32 min
Sep 2, 3:33 PM CDTSevere Thunderstorm WarningFGFSargent32 min
Sep 2, 3:58 PM CDTSevere Thunderstorm WarningFGFRansom32 min
Sep 2, 4:44 PM CDTFlash Flood WarningFGFCass, Ransom, Richland4 hr

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.