Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 70, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 20, 2001, 12:56 PM CDT for Benson County, Ramsey County, North Dakota. It was in force for 49 min. 4 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
- Jun 20, 2001, 12:56 PM CDT (17:56 UTC)
- Expired
- Jun 20, 2001, 1:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Benson County, ND, Ramsey County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 20, 1:04 PM CDT | Tornado F0 | Minnewaukan, ND | Intermittent touchdowns were reported. |
| Jun 20, 1:25 PM CDT | Hail 1.75 | Devils Lake, ND | |
| Jun 20, 1:35 PM CDT | Tornado F0 | Ft Totten, ND | A brief touchdown was reported. |
| Jun 20, 1:45 PM CDT | Hail 1 | Ft Totten, 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 5.9 hours before the alert went out and 187 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
- 5 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1485 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
201 WUUS53 KFGF 201756 SVRFAR NDC005-071-201845- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 1256 PM CDT WED JUN 20 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BENSON COUNTY IN NORTHEAST NORTH DAKOTA... SOUTHWESTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA... * UNTIL 145 PM CDT * AT 1254 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 2 MILES NORTH OF MINNEWAUKAN...OR ABOUT 18 MILES WEST OF DEVILS LAKE...MOVEMENT WAS TO THE SOUTHEAST AT 20 MPH. *HAIL TO THE SIZE OF NICKELS IS POSSIBLE WITH THIS STORM. * THE SEVERE THUNDERSTORM WILL BE NEAR... MINNEWAUKAN AT 100 PM CDT... FORT TOTTEN AT 135 PM CDT... ST MICHAEL AT 145 PM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4822 9931 4806 9944 4782 9886 4804 9869 $$ BRAZZELL 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 Jun 20, 10:15 AM CDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jun 20, 10:15 AM CDT, 2 hours 41 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1015 AM CDT WED JUN 20 2001 AFTERNOON UPDATE CHALLENGE IS ONCE AGAIN THE THUNDERSTORM POTENTIAL ACROSS THE AREA. WATER VAPOR IMAGERY SHOWS NEXT WAVE MOVING INTO NORTHEAST MONTANA. 12Z ETA PICKED UP WELL ON THIS FEATURE AND TRACKS IT INTO CENTRAL ND BY 00Z. OLD AVN A BIT FASTER...WITH ITS PLACEMENT OVER EASTERN ND BY 00Z. BASICALLY SAME PARAMETERS IN PLACE FROM TUESDAY WITH COLD H5 POOL OVER AREA IN CYCLONIC FLOW. 12Z KBIS SOUNDING SHOWS CONVECTIVE TEMP AROUND 70...CAPE NEARLY 1000 J/KG AND LI AT -4.5. GOOD H7 OMEGA COMING INTO AREA FROM 18Z TO 00Z TIME FRAME WITH SOME H85-7 Q VECTOR CONVERGENCE. NOT A LOT OF FOCUS RIGHT NOW AT THE SFC WITH LIGHT WINDS...BUT THERE MAY BE SOME REMNANT BOUNDARIES ASSOCIATED WITH THE WAVE DROPPING SOUTHEAST. ALL SAID... THUNDERSTORMS LOOK GOOD AGAIN BY AFTERNOON...ESPECIALLY ACROSS SOUTHEAST ND AND WEST CENTRAL MN. THIS AREA SEEING THE MOST SUNSHINE THIS MORNING WHILE REMNANT CLOUD COVER AND SHOWERS ARE LIMITING THE HEATING OVER MOST NORTHERN AREAS. K8D3 ALREADY AT 71 SO WILL ADD A BUFFER ZONE ACROSS THE SOUTH FOR SLIGHTLY HIGHER TEMPS. .FGF...NONE. GODON
In the hours before
Special weather statement, Jun 20, 8:04 AM CDT, 4 hours 52 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-201400- SPECIAL WEATHER STATEMENT HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 803 AM CDT TUE JUN 19 2001 ...NO SEVERE WEATHER IS EXPECTED ACROSS EASTERN NORTH DAKOTA OR NORTHWESTERN MINNESOTA TODAY... SYNOPSIS...A WEAK UPPER LEVEL DISTURBANCE WILL PASS ACROSS THE REGION TODAY WHILE A FRONT BEGINS TO LIFT NORTHEAST TOWARD EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA DURING THE AFTERNOON AND EVENING. SCATTERED SHOWERS AND THUNDERSTORMS WILL SPREAD OVER THE AREA TODAY...HOWEVER A LACK OF STRONG INSTABILITY WILL LIMIT THE POTENTIAL FOR SEVERE WEATHER. RJT
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:08 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 37 min |
| Jun 19, 7:14 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 31 min |
| Jun 20, 1:14 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson | 46 min |
| Jun 20, 1:28 PM CDT | Tornado Warning | FGF | Benson, Ramsey | 32 min |
| Jun 20, 1:41 PM CDT | Tornado Warning | FGF | Grand Forks, Nelson | 34 min |
| Jun 20, 1:59 PM CDT | Tornado Warning | FGF | Benson, Eddy, Nelson | 31 min |
| Jun 20, 2:12 PM CDT | Tornado Warning | FGF | Grand Forks, Steele, Traill | 33 min |
| Jun 20, 2:30 PM CDT | Tornado Warning | FGF | Eddy, Nelson | 45 min |
| Jun 20, 2:45 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 45 min |
| Jun 20, 3:14 PM CDT | Tornado Warning | FGF | Traill | 31 min |
| Jun 20, 3:16 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 44 min |
| Jun 20, 3:31 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 29 min |
| Jun 20, 3:45 PM CDT | Tornado Warning | FGF | Traill | 30 min |
| Jun 20, 4:00 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 45 min |
| Jun 20, 4:05 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 25 min |
| Jun 20, 4:15 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 45 min |
| Jun 20, 4:28 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 32 min |
| Jun 20, 4:32 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 28 min |
| Jun 20, 4:57 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 33 min |
| Jun 20, 5:03 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 42 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.