Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 137, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 18, 2001, 1:12 AM CDT for Cass County, North Dakota. It was in force for 63 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
- Jul 18, 2001, 1:12 AM CDT (06:12 UTC)
- Expired
- Jul 18, 2001, 2:15 AM CDT
- In force
- 63 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 66 km from the middle of the area, began a volume at 06:15 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 |
|---|---|---|---|
| Jul 18, 1:15 AM CDT | Hail 0.75 | Tower City, ND |
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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 6.2 hours before the alert went out and 243 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
- 2561 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2319 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 180612 SVRFAR NDC017-180715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 112 AM CDT WED JUL 18 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 215 AM CDT. * AT 110 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF PAGE...OR ABOUT 19 MILES NORTHEAST OF VALLEY CITY...MOVEMENT WAS TO THE EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PAGE AT 125 AM CDT... AYR AT 135 AM CDT... ERIE AT 150 AM CDT AND ARTHUR AT 215 AM CDT. DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND TORNADOES ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. SEEK SHELTER IN A REINFORCED BUILDING IMMEDIATELY. IF SEVERE WEATHER IS OBSERVED CONTACT YOUR LOCAL LAW ENFORCEMENT AND ASK THEM ETO RELAY YOUR INFORMATION TO THE NATIONAL WEATHER SERVICE. $$ 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 Jul 17, 8:00 PM CDT, 5 hours 12 minutes earlier.
Area forecast discussion, Jul 17, 8:00 PM CDT, 5 hours 12 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 800 PM CDT TUE JUL 17 2001 ...DUE TO ONGOING SEVERE WEATHER...THE EVENING AFfD WILL BE DELAYED... THE EVENING FORECAST DISCUSSION AND ZONE UPDATES WILL OCCUR ONCE THE SEVERE WEATHER SUBSIDES... RJT
In the hours before
Special weather statement, Jul 17, 7:29 PM CDT, 5 hours 43 minutes before
NDZ014-015-024-026>030-180100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 729 PM CDT TUE JUL 17 2001 ...SEVERE THUNDERSTORM WATCH HAS EXPIRED... AT 700 PM CDT...THE ATMOSPHERE HAS STABILIZED OVER BENSON... RAMSEY...NELSON...GRAND FORKS...EDDY...GRIGGS...STEELE AND TRAILL COUNTIES OF EASTERN NORTH DAKOTA. WHILE SCATTERED THUNDERSTORMS ARE POSSIBLE...NO SEVERE WEATHER IS EXPECTED. A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHEAST NORTH DAKOTA AND MUCH OF NORTHWEST MINNESOTA UNTIL MIDNIGHT CDT. RJT
Local storm report, Jul 18, 1:07 AM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
107 AM CDT WED JUL 18 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0337 PM 10 N BEMIDJI MN .75 INCH HAIL
07/17/01 BELTRAMI
0350 PM 9 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI AMATUER RADIO REPORT
0350 PM 7 W FINLEY ND 2 INCH HAIL
07/17/01 GRIGGS
0354 PM 9 N BEMIDJI MN .75 INCH HAIL
07/17/01 BELTRAMI AMATUER RADIO REPORT
0400 PM 7 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0404 PM 4 E COOPERSTOWN ND 1 INCH HAIL
07/17/01 GRIGGS
0405 PM 10 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI AMATUER RADIO REPORT
0405 PM 5 W FINLEY ND 1.75 INCH HAIL
07/17/01 STEELE
0405 PM 5 W FINLEY ND 1.75 INCH HAIL
07/17/01 STEELE
0425 PM 3 N BEMIDJI MN 1.5 INCH HAIL
07/17/01 BELTRAMI
0428 PM 3 S FINLEY ND 1 INCH HAIL
07/17/01 STEELE
0430 PM 10 NW FOUR TOWN MN 1.75 INCH HAIL
07/17/01 BELTRAMI
0430 PM 11 NW FOUR TOWN MN 1.25 INCH HAIL
07/17/01 BELTRAMI
0435 PM 5 N HOPE ND 1.75 INCH HAIL
07/17/01 STEELE
0435 PM 3 S SALOL MN 1 INCH HAIL
07/17/01 ROSEAU
0435 PM 2 NW BEMIDJI MN 1.5 INCH HAIL
07/17/01 BELTRAMI
0440 PM 10 N GRYGLA MN .75 INCH HAIL
07/17/01 MARSHALL
0453 PM 4 W KELLIHER MN .75 INCH HAIL
07/17/01 BELTRAMI
0459 PM 15 E BEMIDJI MN 2.75 INCH HAIL
07/17/01 BELTRAMI
0500 PM 7 SW FINLEY ND 2 INCH HAIL
07/17/01 STEELE GROUND WAS WHITE; HAIL
FELL FOR OVER 15 MINUTES
0510 PM 9 E COOPERSTOWN ND .75 INCH HAIL
07/17/01 STEELE
0521 PM BEMIDJI MN 1.75 INCH HAIL
07/17/01 BELTRAMI AMATUER RADIO REPORT
0550 PM GRACETON MN .75 INCH HAIL
07/17/01 LAKE OF THE WOODS
0550 PM GRACETON MN .75 INCH HAIL
07/17/01 LAKE OF THE WOODS
0600 PM LYNCHBURG ND 2.75 INCH HAIL
07/17/01 CASS
0620 PM 3 NE CHAFFEE ND 3 INCH HAIL
07/17/01 CASS
0624 PM 3 W REDBY MN TORNADO
07/17/01 BELTRAMI
0624 PM SAUM MN TORNADO
07/17/01 BELTRAMI AMATUER RADIO REPORT
0631 PM 6 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0636 PM 4 N BEMIDJI MN .75 INCH HAIL
07/17/01 BELTRAMI REPORT FROM THE NORTH
SHORE OF LAKE BEMIDJI FROM
AMATUER RADIO
0638 PM BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0643 PM 6 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0650 PM 9 N BEMIDJI MN 1.5 INCH HAIL
07/17/01 BELTRAMI
0652 PM 2 S TURTLE RIVER MN 1 INCH HAIL
07/17/01 BELTRAMI
0656 PM 3 SW FUNKLEY MN TORNADO
07/17/01 BELTRAMI
0658 PM 5 NW FUNKLEY MN TORNADO
07/17/01 BELTRAMI
0700 PM 7 E BEMIDJI MN .88 INCH HAIL
07/17/01 BELTRAMI
0700 PM FUNKLEY MN TORNADO
07/17/01 BELTRAMI
0705 PM 1 E FUNKLEY MN TORNADO
07/17/01 BELTRAMI
0710 PM 7 N BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0727 PM 8 SE LEONARD ND .75 INCH HAIL
07/17/01 RICHLAND
0727 PM 8 SE LEONARD ND 70 MPH TSTM GUST
07/17/01 RICHLAND
0728 PM HINES MN .75 INCH HAIL
07/17/01 BELTRAMI
0731 PM TENSTRIKE MN .75 INCH HAIL
07/17/01 BELTRAMI
0736 PM 4 E KINDRED ND .75 INCH HAIL
07/17/01 RICHLAND
0740 PM BROCKET ND .75 INCH HAIL
07/17/01 RAMSEY
0744 PM OYLEN MN 1.75 INCH HAIL
07/17/01 WADENA
0745 PM 14 E BEMIDJI MN 1 INCH HAIL
07/17/01 BELTRAMI
0747 PM PONEMAH MN 1.75 INCH HAIL
07/17/01 BELTRAMI
0751 PM ROOSEVELT MN 1 INCH HAIL
07/17/01 ROSEAU
0755 PM 1 E ROOSEVELT MN .75 INCH HAIL
07/17/01 LAKE OF THE WOODS
0800 PM 1 E ROOSEVELT MN .75 INCH HAIL
07/17/01 LAKE OF THE WOODS
0800 PM 8 N BARNEY ND 1 INCH HAIL
07/17/01 RICHLAND
0800 PM 8 N BARNEY ND WIND DAMAGE
07/17/01 RICHLAND BARN AND MACHINE SHED
KNOCKED OVER...RADIO
TOWERS AND TREES ALSO
BLOWN DOWN
0805 PM MOORETON ND 65 MPH TSTM GUST
07/17/01 RICHLAND
0820 PM MOORETON ND 79 MPH TSTM GUST
07/17/01 RICHLAND
0838 PM 10 N PARK RAPIDS MN .88 INCH HAIL
07/17/01 HUBBARD
0838 PM 2 S FINGAL ND .75 INCH HAIL
07/17/01 BARNES
0838 PM 2 S FINGAL ND 2 INCH HAIL
07/17/01 BARNES
0846 PM 10 NE PARK RAPIDS MN 1.75 INCH HAIL
07/17/01 HUBBARD
0855 PM 7 SW ALICE ND 1.75 INCH HAIL
07/17/01 CASS
0855 PM 3 SE MOORETON ND 1.75 INCH HAIL
07/17/01 RICHLAND
0903 PM FERGUS FALLS MN 65 MPH TSTM GUST
07/17/01 OTTER TAIL
0915 PM SHELDON ND .75 INCH HAIL
07/17/01 RANSOM
0955 PM 5 SW LISBON ND 1.5 INCH HAIL
07/17/01 RANSOM
1007 PM PARKERS PRAIRIE MN .75 INCH HAIL
07/17/01 OTTER TAIL
1010 PM 6 S LISBON ND 1.75 INCH HAIL
07/17/01 RANSOM
1015 PM 7 S LISBON ND 1.75 INCH HAIL
07/17/01 RANSOM
1100 PM 5 E MOORETON ` ND 1 INCH HAIL
07/17/01 RICHLANDThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:03 PM CDT | Tornado Warning | FGF | Ransom | 42 min |
| Jul 17, 7:27 PM CDT | Tornado Warning | FGF | Richland | 48 min |
| Jul 17, 7:41 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey, Walsh | 49 min |
| Jul 17, 7:47 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 43 min |
| Jul 17, 8:10 PM CDT | Tornado Warning | FGF | Richland | 35 min |
| Jul 17, 8:13 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 47 min |
| Jul 17, 8:37 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 53 min |
| Jul 17, 8:42 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 48 min |
| Jul 17, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 32 min |
| Jul 17, 9:29 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 31 min |
| Jul 17, 9:38 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 37 min |
| Jul 17, 9:57 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 48 min |
| Jul 17, 10:05 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 40 min |
| Jul 17, 10:11 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 34 min |
| Jul 17, 10:40 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 35 min |
| Jul 17, 11:50 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 40 min |
| Jul 18, 12:30 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 45 min |
| Jul 18, 12:56 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 49 min |
| Jul 18, 2:07 AM CDT | Severe Thunderstorm Warning | FGF | Steele | 38 min |
| Jul 18, 2:13 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 62 min |
| Jul 18, 3:41 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 49 min |
| Jul 18, 4:22 PM CDT | Tornado Warning | FGF | Pembina | 38 min |
| Jul 18, 5:43 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 47 min |
| Jul 18, 5:57 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 48 min |
| Jul 18, 6:00 PM CDT | Tornado Warning | FGF | Nelson | 30 min |
| Jul 18, 6:04 PM CDT | Tornado Warning | FGF | Griggs | 26 min |
| Jul 18, 6:26 PM CDT | Tornado Warning | FGF | Griggs, Nelson, Steele | 49 min |
| Jul 18, 6:32 PM CDT | Tornado Warning | FGF | Walsh | 43 min |
| Jul 18, 6:36 PM CDT | Tornado Warning | FGF | Pembina | 24 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.