Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 267, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 8, 2001, 3:12 AM CDT for Grand Forks County, North Dakota. It was in force for 48 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
- Aug 8, 2001, 3:12 AM CDT (08:12 UTC)
- Expired
- Aug 8, 2001, 4:00 AM CDT
- In force
- 48 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 45 km from the middle of the area, began a volume at 08:14 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 8, 3:30 AM CDT | Thunderstorm Wind | Larimore, ND | Tree branches were blown down. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 7, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.2 hours before the alert went out and 276 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
- 6234 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 2004 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 15.2
The text
As transmitted, in the capitals the NWS used until 2016.
661 WUUS53 KFGF 080812 SVRFAR NDC035-080900- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 312 AM CDT WED AUG 8 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA. INCLUDING THE CITY OF GRAND FORKS... * UNTIL 400 AM CDT. * AT 309 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF LARIMORE...OR ABOUT 31 MILES WEST OF GRAND FORKS...MOVEMENT WAS TO THE EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LARIMORE AT 315 AM... ARVILLA AT 325 AM... EMERADO AT 335 AM AND GRAND FORKS AT 355 AM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 AM WEDNESDAY MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 400 AM WEDNESDAY MORNING FOR EASTERN NORTH DAKOTA. $$ 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 8, 2:52 AM CDT, 20 minutes earlier.
Area forecast discussion, Aug 8, 2:52 AM CDT, 20 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 255 AM CDT TUE AUG 7 2001 FORECAST CHALLENGE CONCERNS TEMPERATURES AND PCPN. MODELS IN REASONABLE AGREEMENT WITH ETA COMING AROUND TO AVN SOLUTION WITH FROPA AND LOW LEVEL FEATURES. SMALL CLUSTER OF SVR TSRA OVR EAST CENTRAL ND TRACKING EASTWARD WITH LARGER COMPLEX WORKING INTO NORTH CENTRAL ND. WILL MONITOR TRENDS BUT LIKELY NEED AM MENTION OVER NORTHERN AND POSSIBLY SE AREAS FOR AM. COLD FRONT AT 12Z TO BE ORIENTED FROM WESTERN MB THROUGH SW ND TO SHIFT EASTWARD TO ROUGHLY A INL-FAR-ABR LINE AT 00Z. APPROACHING MID LEVEL TROUGH AND 700MB COLD ADVECTION TO GRADUALLY ERODE CAPPING. ALONG AND AHEAD OF BOUNDARY AIRMASSS WILL REMAIN VERY MOIST AND UNSTABLE. AS A RESULT...DEPENDING ON ACTUAL BOUNDARY/OUTFLOW LOCATION LOOK FOR ANOTHER ROUND OF STRONG CONVECTION WITH BEST SHOT/HIGHEST POPS OVER SE ND AND MN. WILL ALSO NEED TO MAINTAIN SOME SORT OF MENTION BEHIND BOUNDARY WITH APPROACH OF MID LEVEL SHEAR AXIS. AS FAR AS TEMPS 70 DEWPOINTS WIDESPREAD ACROSS FA ATTM. BASED ON EXPECTED COLD FRONT LOCATION SOUTHERN AREAS LAST TO SEE ANY RELIEF AND WILL SEE AND HOT STEAMY DAY. AS A RESULT WILL CONTINUE HEAT ADVISORY THIS AREA. NORTHERN AREAS WILL BE FIRST TO SEE COOLING AND PCPN CLD COVER MAY LIMIT TEMPS TO A DEGREE. COLD FRONT PUSHES THROUGH FA OVER FIRST HALF OF OVERNIGHT PERIOD. WILL MAINTAIN HIGHEST POPS OVER SOUTHERN AND EASTERN ZONES. STRONG 850MB CAA IN WAKE OF BOUNDARY WHICH CONTINUES INTO THURSDAY. SOME DRYING NOTED THURSDAY FROM INTEGRATED RH FIELDS AND CU RULES POINT TO ATLEAST PARTIAL SUNSHINE AS HIGH PUSHES IN. MUCH COOLER TEMPS INSTORE FOR REGION WITH NORTHWEST FLOW ALOFT TAKING OVER ENDING CURRENT HEAT SPELL. WITH WATCHES IN EFFECT UNTIL 5AM WILL LIKELY HOLD OFF ON ZONE ISSUANCE UNTIL THEN. .FGF...HEAT ADVISORY ALONG AND SOUTH OF A FAR-PKD LINE. NG/GODON
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 11:51 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 39 min |
| Aug 8, 12:26 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 64 min |
| Aug 8, 2:45 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 30 min |
| Aug 8, 5:53 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 52 min |
| Aug 8, 6:06 PM CDT | Tornado Warning | FGF | Benson | 39 min |
| Aug 8, 6:42 PM CDT | Tornado Warning | FGF | Benson, Ramsey | 48 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.