Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 69, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 2001, 7:14 PM CDT for Nelson County, North Dakota. It was in force for 31 min. 1 report 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 19, 2001, 7:14 PM CDT (00:14 UTC)
- Expired
- Jun 19, 2001, 7:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Nelson County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 85 km from the middle of the area, began a volume at 00:16 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 |
|---|---|---|---|
| Jun 19, 7:20 PM CDT | Hail 0.75 | Tolna, 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 00:00Z, 0.2 hours before the alert went out and 212 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
- 104 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1937 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
457 WUUS53 KFGF 200014 SVRFAR NDC063-200045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 714 PM CDT TUE JUN 19 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA... * UNTIL 745 PM CDT * AT 711 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTHWEST OF TOLNA...OR ABOUT 27 MILES SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE SOUTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TOLNA AT 715 PM CDT... PEKIN AT 725 PM CDT... MCVILLE AT 735 PM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4795 9835 4786 9850 4771 9850 4770 9810 $$ DJK 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 19, 1:55 PM CDT, 5 hours 19 minutes earlier.
Area forecast discussion, Jun 19, 1:55 PM CDT, 5 hours 19 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 155 PM CDT TUE JUN 19 2001 ...FORECAST CHALLENGE CENTERS ON EARLY POP THREAT AND THEN BUILDING UPPER LEVEL RIDGE AND RESULTANT TEMPERATURES... .CURRENT OBSERVATIONAL OVERVIEW... 18Z MSAS ANALYSIS DEPICTED STRONG LOW PRESSURE JUST TO THE NORTH OF THE UPPER GREAT LAKES. FEATURE IS CIRCULATING RESIDUAL LOW-LEVEL CYCLONIC CURVATURE OVER REGION WITH EMBEDDED WEAK TROUGHS DROPPING SOUTHEAST FROM SASK PROVINCE INTO NORTH DAKOTA AND MINNESOTA. LATEST SATELLITE IMAGERY INDICATED READINGS APPROACHING CONVECTIVE TEMPERATURE WITH CU FIELDS STARTING TO FIRE UP. .FORECAST DETAILS... MODELS INDICATE UPPER LEVEL FLOW PATTERN TO UNDERGO SOME CHANGES LATE IN THE SHORT TERM PERIOD AS 500MB RIDGING OUT WEST SLOWLY PUSHES EAST INTO THE PLAINS. PERIODIC PIECES OF SHORTWAVE ENERGY EMBEDDED IN NORTHWEST FLOW ALOFT THROUGH SHORT TERM SHOULD LEAD TO LINGERING DIURNALLY DRIVEN SCATTERED CONVECTION THIS EVENING PER EXAMINATION OF 500MB TEMPERATURE FIELDS AND MID-LEVEL LAPSE RATES. WEDNESDAY AND THURSDAY THINGS QUIET DOWN AS ANY LOW-LEVEL FORCING MECHANISM CEASE AND MID AND UPPER LEVEL HIGH PRESSURE SETS SIGHTS ON NATIONS MID-SECTION. AS RIDGE INCHES CLOSER ON THURSDAY THE RESULTANT WILL BE NOTICEABLE TEMPERATURE MODIFICATION ALONG WITH OVERALL DRYING THROUGH COLUMN. .EXTENDED... TRENDS ARE SIMILAR WITH THE MRF AND THE AVN THROUGH THE EXTENDED PERIOD. RIDGE CONTINUES TO STRENGTHEN EARLY ON IN THE EXTENDED. HOWEVER...BY SATURDAY...RIDGE RIDERS INTO SOUTHERN CANADA WILL SWING SURFACE TROF INTO THE VICINITY OF THE RED RIVER. THIS MAY PRODUCE AN ISOLATED TSRA. THE BOUNDARY DOESN'T MOVE THAT FAR SOUTH AND WILL ALREADY BE HEADING BACK TO THE NORTH BY SUNDAY AS LOW PRESSURE DEEPENS IN THE FRONT RANGE OF THE ROCKIES. LOW PRESSURE FORECAST TO MOVE THROUGH THE CWFA THROUGH MONDAY CAUSING SHOWERS AND THUNDERSTORMS. TEMPERATURES WILL WARM NICELY THROUGH THE EARLY PART OF THE WEEKEND AND THEN HOLD STEADY OR DROP A FEW DEGREES WITH THE SHRA AND TSRA ACTIVITY. .FGF...NONE BERG/BRAZZELL *
In the hours before
Local storm report, Jun 19, 3:45 PM CDT, 3 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
345 PM CDT TUE JUN 19 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0135 PM 2 W MUNICH ND 0.75 INCH HAIL
06/19/01 CAVALIER
0158 PM 3 S ALSEN ND 0.75 INCH HAIL
06/19/01 CAVALIER
0210 PM 5 SE ALSEN ND 0.88 INCH HAIL
06/19/01 CAVALIER
0218 PM 4 SW LOMA ND 0.75 INCH HAIL
06/19/01 CAVALIER
0220 PM 7 E HAMPDEN ND 0.75 INCH HAIL
06/19/01 RAMSEY
0238 PM 7 N EDMORE ND 1.00 INCH HAIL
06/19/01 RAMSEY
0249 PM 3 W FAIRDALE ND 1.00 INCH HAIL
06/19/01 WALSH
0300 PM 2 SW FAIRDALE ND 0.75 INCH HAIL
06/19/01 WALSH
0337 PM 4 NW PISEK ND 0.75 INCH HAIL
06/19/01 WALSHThe 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 20, 12:56 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 49 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; radar from the NEXRAD Level II archive.