Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 352, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 24, 2001, 9:08 PM CDT for Benson County, North Dakota. It was in force for 37 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
- Aug 24, 2001, 9:08 PM CDT (02:08 UTC)
- Expired
- Aug 24, 2001, 9:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Benson County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.1 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 303 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 2557 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
876 WUUS53 KFGF 250208 SVRFAR NDC005-250245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 908 PM CDT FRI AUG 24 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN BENSON COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 945 PM CDT. * AT 903 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 14 MILES SOUTHWEST OF MADDOCK...OR ABOUT 46 MILES WEST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MADDOCK AT 930 PM AND FLORA AT 940 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4795 9991 4777 9986 4782 9928 4804 9934 $$ 14 NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 24, 8:00 PM CDT, 1 hour 8 minutes earlier.
Area forecast discussion, Aug 24, 8:00 PM CDT, 1 hour 8 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 800 PM CDT FRI AUG 24 2001 .CURRENT OBSERVATIONAL OVERVIEW... 00Z MSAS ANALYSIS DEPICTED LOW PRESSURE OVER WEST CENTRAL MANITOBA PROVINCE WITH ASSOCIATED TROUGH AXIS EXTENDING SOUTH INTO CENTRAL NORTH DAKOTA. ATTM STORMS FIRING ALONG LEADING EDGE OF TROUGH ACROSS CENTRAL NORTH DAKOTA IN CONJUNCTION WITH MOISTURE FLUX CONVERGENCE MAXIMA. .FORECAST DETAILS... PER LATEST RADAR AND SATELLITE TRENDS IT APPEARS GREATEST CONVECTIVE RISK ACROSS THE NORTH WHERE BETTER UPPER LEVEL DYNAMIC FORCING AND LESS OF A CAP EVIDENT. INHERITED ZONE PACKAGE PRETTY MUCH IN BALLPARK WITH RESPECT TO CONVECTION...HOWEVER UPDATES WILL BE NEEDED LATER AS BOUNDARY SHIFTS EASTWARD AND CONVECTIVE THREAT DIMINISHES. .FGF...NONE BERG
Nearby
Severe Thunderstorm Warnings in North Dakota, 2001Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.