Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 87, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 25, 2001, 6:11 AM CDT for Eddy County, North Dakota. It was in force for 34 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 25, 2001, 6:11 AM CDT (11:11 UTC)
- Expired
- Jun 25, 2001, 6:45 AM CDT
- In force
- 34 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Eddy County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 138 km from the middle of the area, began a volume at 11:12 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 25, 6:25 AM CDT | Hail 1.25 | New Rockford, 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, 11.2 hours before the alert went out and 154 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
- 4111 J/kg
- Mixed-layer CIN
- -220 J/kg
- Mixed-layer LCL
- 1622 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
598 WUUS53 KFGF 251112 SVRFAR NDC027-251145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 611 AM CDT MON JUN 25 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EDDY COUNTY IN NORTHEAST NORTH DAKOTA... * UNTIL 645 AM CDT * AT 607 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF NEW ROCKFORD...OR ABOUT 39 MILES SOUTHWEST OF DEVILS LAKE...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * WINDS TO 60 MPH AND DIME SIZE HAIL IS POSSIBLE WITH THIS STORM. * THE SEVERE THUNDERSTORM WILL BE NEAR... NEW ROCKFORD AT 625 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4762 9941 4749 9922 4775 9865 4786 9906 $$ 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 25, 2:20 AM CDT, 3 hours 51 minutes earlier.
Area forecast discussion, Jun 25, 2:20 AM CDT, 3 hours 51 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 220 AM CDT MON JUN 25 2001 ...FORECAST CHALLENGES FOCUS ON CONVECTIVE SHOW THIS AFTERNOON AND NIGHT WITH FROPA PASSAGE... .CURRENT OBSERVATIONAL OVERVIEW... 07Z MSAS ANALYSIS DEPICTED LOW PRESSURE VICINITY OF NORTH-CENTRAL SOUTH DAKOTA WITH ASSOCIATED WARM FRONT EXTENDING INTO CENTRAL MINNESOTA. LATEST IR SATELLITE IMAGERY AND RADAR MOSAIC INDICATED DEVELOPING MCS ACROSS THE WESTERN DAKOTAS WITH COMPLEX RIDING TO NORTHEAST ALONG 700MB FLOW. .FORECAST DETAILS... WILL GO WITH SCATTERED CONVECTIVE THREAT THIS MORNING NORTH DAKOTA SIDE AS REMAINS OF MCS TRANSVERSE NORTH AND EAST INTO HIGHLY CAPPED ENVIRONMENT. EXTENT AND STRENGTH OF CONVECTIVE REMAINS VERY MUCH IN QUESTION. REMAINDER OF DAY STRENGTH AND FUTURE EROSION OF STRONG MID-LEVEL CAP ATTM ACROSS REGION WILL EVENTUALLY DICTATE EXTENT OF CONVECTIVE DEVELOPMENT LATER THIS AFTERNOON INTO TONIGHT. NO DOUBT STRONG THERMODYNAMIC PARAMETERS WILL BE IN PLACE ACROSS AREA TODAY WITH CAPES TO 3000 J/KG. FEEL INCREASING UPPER LEVEL DIVERGENCE VICINITY OF RIGHT REAR QUAD OF 250 MB JET MAX THIS AFTERNOON WILL AID IN EROSION OF CAP WITH CONVECTION FIRING IN ADVANCE OF EASTWARD ADVANCING TROUGH. SEE SPC DAY 1 OUTLOOK FOR FURTHER DETAILS. BOUNDARY SLOWLY SAGS SOUTH AND EAST TONIGHT IN RESPONSE TO UPSTREAM AREA OF HIGH PRESSURE WITH LINGERING CONVECTIVE THREAT ACROSS THE FAR SOUTHEAST INTO TUESDAY MORNING. NO CHANGES EXPECTED TO EXTENDED PACKAGE ATTM. COORDINATED WITH DLH THANKS FOR THE CALL. .FGF...NONE. BERG
In the hours before
Special weather statement, Jun 25, 6:09 AM CDT, 2 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-251505- SPECIAL WEATHER STATEMENT HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 609 AM CDT MON JUN 25 2001 ...SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND TONIGHT ACROSS PORTIONS OF EASTERN NORTH DAKOTA AND WESTERN MINNESOTA... SYNOPSIS....A TROUGH OF LOW PRESSURE WILL MOVE EAST ACROSS THE NORTHERN PLAINS TODAY. WARM AND UNSTABLE AIR IN PLACE AHEAD OF THIS FEATURE WILL HELP TO INDUCE SCATTERED THUNDERSTORM ACTIVITY THIS AFTERNOON INTO TONIGHT ACROSS THE REGION. AREA OF CONCERN...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF EASTERN NORTH DAKOTA AND ADJACENT WESTERN MINNESOTA. TIME...FROM 2 TO 10 PM TYPE OF HAZARD...MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS. BERG
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.