Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 289, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 8, 2001, 10:29 PM CDT for Ransom County, North Dakota. It was in force for 31 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 8, 2001, 10:29 PM CDT (03:29 UTC)
- Expired
- Aug 8, 2001, 11:00 PM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Ransom County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 122 km from the middle of the area, began a volume at 03:30 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 8, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.5 hours before the alert went out and 182 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
- 1379 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 2559 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
637 WUUS53 KFGF 090330 SVRFAR NDC073-090400- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 1029 PM CDT WED AUG 8 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 1100 PM CDT. * AT 1025 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF ENGLEVALE...OR ABOUT 33 MILES SOUTH OF VALLEY CITY...MOVEMENT WAS TO THE EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ENGLEVALE AT 1030 PM... ELLIOTT AT 1035 PM... LISBON AT 1045 PM AND ANSELM AT 1055 PM. * HAIL TO GOLF BALL SIZE AND 70 MPH WINDS WILL BE LIKELY. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM WEDNESDAY EVENING FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM THURSDAY MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA. LAT...LON 4654 9807 4637 9806 4634 9739 4660 9741 $$ DTR/06 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 8, 9:11 PM CDT, 1 hour 18 minutes earlier.
Area forecast discussion, Aug 8, 9:11 PM CDT, 1 hour 18 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 911 PM CDT WED AUG 8 2001 ...DISCUSSION DELAYED DUE TO SEVERE WEATHER... ...MAIN FORECAST CHALLENGE THIS PACKAGE IS SVR CONVECTION WITH FROPA... .CURRENT OBSERVATIONAL OVERVIEW...INTENSE SVR TSTMS HAVE MOVED THROUGH THE GRAND FORKS METRO AREA. WIND GUSTS TO 101 MPH WERE RECORDED WITH THE WEATHER OFFICE HERE. BROKEN LINE OF SVR CELLS ARE ASSOCIATED WITH COLD FRONT MOVING THROUGH THE AREA. .SHORT TERM...WILL MAKE SHORT TERM ADJUSTMENTS TO ZONES TO ACCOUNT FOR CURRENT TSTM ACTIVITY. ZONES WILL AGAIN BE UPDATED WHEN WATCH STATUS CHANGES. .FGF...TORNADO WATCH 664 UNTIL 11 PM (DUE TO BE REVISED BY 10 PM) BRAMER
In the hours before
Local storm report, Aug 8, 7:22 PM CDT, 3 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
722 PM CDT WED AUG 08 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0245 PM 6 NW PONSFORD MN 60 MPH TSTM GUST
08/08/01 BECKER
0339 PM AKELEY MN 62 MPH TSTM GUST
08/08/01 HUBBARD MEASURED MN DOT
ROADSIDE SITE
0340 PM PARK RAPIDS MN WIND DAMAGE
08/08/01 HUBBARD NUMEROUS TREES DOWN
0600 PM 2 SW MADDOCK ND 1 INCH HAIL
08/08/01 BENSON
0620 PM 4 SW ESMOND ND 1 INCH HAIL
08/08/01 BENSON
0620 PM 9 NW MADDOCK ND .88 INCH HAIL
08/08/01 BENSON 4 INCH DIAMETER TREE
BRANCHES ALSO DOWN
0623 PM 5 NE MADDOCK ND .75 INCH HAIL
08/08/01 BENSON 4 INCH DIAMETER TREE
BRANCHES ALSO DOWN
0640 PM 4 NW OBERON ND WIND DAMAGE
08/08/01 BENSON 2 TREES BLOWN DOWN
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:25 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson | 50 min |
| Aug 8, 7:29 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 46 min |
| Aug 8, 7:59 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 46 min |
| Aug 8, 8:04 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 56 min |
| Aug 8, 8:39 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 36 min |
| Aug 8, 8:47 PM CDT | Flash Flood Warning | FGF | Grand Forks | 6 hr |
| Aug 8, 8:49 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 56 min |
| Aug 8, 8:59 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 46 min |
| Aug 8, 9:03 PM CDT | Flash Flood Warning | FGF | Barnes, Cass | 6 hr |
| Aug 8, 9:46 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 44 min |
| Aug 8, 11:08 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 52 min |
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; radar from the NEXRAD Level II archive.