Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 260, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 8, 2001, 12:26 AM CDT for 4 counties in North Dakota. It was in force for 64 min. 10 reports came from 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, with what was reported inside it.
The facts
- Issued
- Aug 8, 2001, 12:26 AM CDT (05:26 UTC)
- Expired
- Aug 8, 2001, 1:30 AM CDT
- In force
- 64 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Barnes County, ND, Cass County, ND, Steele County, ND, Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 32 km from the middle of the area, began a volume at 05:27 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, 1:15 AM CDT | Thunderstorm Wind 61 E | Mayville, ND | 70 mph winds were reported. |
| Aug 8, 1:15 AM CDT | Thunderstorm Wind | Clifford, ND | One 50,000 bushel grain bin was destroyed and 7 others were damaged. Many trees were uprooted. |
| Aug 8, 1:15 AM CDT | Thunderstorm Wind | Mayville, ND | A grain bin was torn from its foundation and blown a mile away. |
| Aug 8, 1:15 AM CDT | Thunderstorm Wind | Clifford, ND | A grain bin was lifted off its foundation and into a grain dryer. |
| Aug 8, 1:15 AM CDT | Thunderstorm Wind | Galesburg, ND | Trees were blown down and a grain elevator was damaged. One tree fell on a garage. |
| Aug 8, 1:18 AM CDT | Thunderstorm Wind | Hillsboro, ND | A church, built in the 1880s, lost its steeple to the strong wind. |
| Aug 8, 1:20 AM CDT | Thunderstorm Wind | Hope, ND | Numerous trees were blown down and an 85 foot steel grain bin was knocked down onto the railroad tracks. The bin had an 83,000 bushel capacity. |
| Aug 8, 1:20 AM CDT | Hail 0.75 | Hope, ND | |
| Aug 8, 1:20 AM CDT | Thunderstorm Wind | Cummings, ND | A barn was destroyed by the strong wind. |
| Aug 8, 1:20 AM CDT | Thunderstorm Wind | Pickert, ND | Trees were uprooted and a power pole was snapped by the strong wind. |
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, 5.4 hours before the alert went out and 238 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.
643 WUUS53 KFGF 080528 SVRFAR NDC003-017-091-097-080630- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 1226 AM CDT WED AUG 8 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA... NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA... STEELE COUNTY IN SOUTHEAST NORTH DAKOTA AND TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 130 AM CDT. * AT 1221 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 43 MILES SOUTHWEST OF GRAND FORKS TO 20 MILES NORTHWEST OF VALLEY CITY...MOVEMENT WAS TO THE SOUTHEAST AT 30 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... BLABON AT 1235 AM... LUVERNE AT 1240 AM... PILLSBURY AT 1245 AM... MAYVILLE AT 100 AM... PAGE AT 115 AM REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM WEDNESDAY MORNING FOR EASTERN NORTH DAKOTA. LAT...LON 4765 9781 4701 9809 4686 9772 4765 9698 $$ 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 7, 8:25 PM CDT, 4 hours 1 minute earlier.
Area forecast discussion, Aug 7, 8:25 PM CDT, 4 hours 1 minute before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 825 PM CDT TUE AUG 7 2001 FCST CHALLENGE OVERNIGHT...COVERAGE/INTENSITY AND LOCATION OF CONVECTION. EARLY EVE SFC MAP SHOWS LOW IN SE SASK WITH WARM FRONT INTO FAR SRN MB AND TROUGH THROUGH FAR ERN MT. ACTUAL COLD FRONT FARTHER WEST DROPPING SOUTH THROUGH SRN ALBERTA. SATELLITE ALONG WITH 70H TEMPS WOULD INDICATE NRN EDGE OF CAP EXTENDS JUST NORTH OF A BIS-FAR-BJI LINE. SFC MAP ALSO SHOWS WK TROUGH ALONG THIS AXIS AS WELL. FIRST BATCH OF ELEVATED WEAK CONVECTION THAT WAS NR MINOT LATE THIS AFTN HAS MOVED EAST AND FALLEN APART AS IT APPROACHED WRN CWFA. STRONGER TSRA THAT GOT GOING IN ERN MT NOW MOVING EAST AND LOCATED BTWN MOT/BIS. NO SVR YET. 18Z MESO ETA INDICATES 35-40KT LOW LEVEL JET WILL GET GOING BY 06Z WITH NOSE IN NCNTRL ND AND THEN IT MOVES OVR THE NE ND/NW MN AND SRN IN THE 09-12Z TIME FRAME. THUS EXPECT SOME EVOLUTION OF TSRA IN WRN ND/ERN MT INTO A LARGER COMPLEX AS THE NIGHT PROGRESSES. GOING FCST AND BREAKUP LOOK GOOD WITH HIGHEST POPS NRN ZONES (NORTH OF TROUGH) AND NO POPS IN THE FAR SOUTH WHERE CAP WILL REMAIN. AS FOR THE HEAT ADVISORY...MUCH OF ERN ND AND A FEW PLACES IN NW MN REACHED 105F LATE THIS AFTN...AND WITH DEW PTS CLIMBING INTO THE UPPER 70S OVERNIGHT EXPECT HEAT INDICES TO REMAIN ABV 80F TONIGHT. THUS WILL MAINTAIN CURRENT HEAT ADVISORY LOCATION FOR TONIGHT. WILL RE-ISSUE NEW NPWFAR AND ZONES SHORTLY AFTER 9 PM. .FGF...HEAT ADVISORY ALL CWFA EXCEPT WC MN TONIGHT. RIDDLE
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, 2:45 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 30 min |
| Aug 8, 3:12 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 48 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.