Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 199, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 14, 2000, 9:44 AM CDT for Mahnomen County, Minnesota. 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
- Aug 14, 2000, 9:44 AM CDT (14:44 UTC)
- Expired
- Aug 14, 2000, 10:15 AM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Mahnomen County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 112 km from the middle of the area, began a volume at 14:47 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 14, 10:00 AM CDT | Hail 0.75 | Mahnomen, MN |
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
International Fa, MN (KINL), launched 12:00Z, 2.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1634 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
830 WUUS53 KFGF 141445 SVRFAR MNC087-141515- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 944 AM CDT MON AUG 14 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MAHNOMEN COUNTY IN NORTHWEST MINNESOTA... * UNTIL 1015 AM CDT * AT 942 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER MAHNOMEN...OR ABOUT 35 MILES NORTH OF DETROIT LAKES...MOVEMENT WAS TO THE EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BEAULIEU AT 950 AM CDT... MAHKONCE AT 1000 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4737 9605 4721 9604 4719 9559 4739 9563 $$ KELLENBENZ 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 14, 3:14 AM CDT, 6 hours 30 minutes earlier.
Area forecast discussion, Aug 14, 3:14 AM CDT, 6 hours 30 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 310 AM MON AUG 14 2000 ...MAIN CONCERNS THIS PACKAGE CENTER ON SEVERE CONVECTIVE THREAT DURING FIRST PERIOD... .CURRENT OBSERVATIONAL OVERVIEW... 07Z MSAS DATA SETS CONFIRMED LOW PRESSURE VICINITY OF EXTREME SOUTHEAST MONTANA WITH INVERTED TROUGH AXIS EXTENDING NORTHWARD INTO SOUTHERN SASK PROVINCE. STRONGEST SURFACE BASED INSTABILITY AND MOISTURE FLUX CONVERGENCE ATTM VICINITY OF WESTERN NODAK I.E. VICINITY OF DEVELOPING CONVECTIVE COMPLEX. LATEST KMVX VAD WIND PROFILE DEPICTED RATHER POTENT LOW-LEVEL 40 KTS JUST OFF THE SURFACE WITH GOOD VEERING WITH HEIGHT NOTED. .SHORT TERM... HERE WE GO AGAIN...PER ADVERTISED. STRONG CORE OF UPPER LEVEL WESTERLIES WITH EMBEDDED PIECES OF SHORTWAVE ENERGY STREAKING EAST OVER THE TOP OF CENTRAL PLAINS 5H RIDGE RESULTING IN SEVERE CONVECTION ACROSS NODAK. EXTRAPOLATION OF SURFACE BASED TROUGH AND INSTABILITY PARAMETERS SUGGESTS SEVERE CONVECTIVE THREAT SHOULD SLOWLY SHIFT EAST OF THE VALLEY BY AFTERNOON INTO MINNESOTA...REFER TO SPC DAY ONE OUTLOOK FOR FURTHER DETAILS. BASED ON ABOVE SCENARIO WILL END CONVECTIVE THREAT FROM WEST TO EAST AS DAY WEARS ON. .LONG TERM... IN WAKE OF TROUGH EXPECT SOUTHERN SASK PROVINE HIGH TO RIDGE SOUTHEAST INTO REGION TONIGHT AND TUESDAY WITH THE RESULTANT BEING TEMPERATURE AND HUMIDITY REDUCTION. NO CHANGES PLANNED TO EXTENDED ATTM. .FGF...NONE. BERG
In the hours before
Special weather statement, Aug 14, 4:30 AM CDT, 5 hours 14 minutes before
MNZ004-005-007-NDZ006>008-014>016-024-026>029-054-141130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 430 AM CDT MON AUG 14 2000 ...SEVERE THUNDERSTORM WATCH NUMBER 684 HAS BEEN CANCELLED FOR PORTIONS OF EASTERN NORTH DAKOTA... THE THREAT FOR SEVERE WEATHER HAS DIMINISHED ACROSS THE AREA AND THE WATCH HAS BEEN CANCELLED. N
Special weather statement, Aug 14, 6:20 AM CDT, 3 hours 24 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-141400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 620 AM CDT MON AUG 14 2000 ...SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH EARLY AFTERNOON ACROSS MAINLY WEST-CENTRAL AND NORTHWEST MINNESOTA... SYNOPSIS...SCATTERED THUNDERSTORMS AHEAD OF A EASTWARD ADVANCING TROUGH WILL SPREAD EAST OF THE RED RIVER VALLEY INTO MINNESOTA LATER THIS MORNING. AREA OF CONCERN...MAINLY FROM THE RED RIVER VALLEY EAST. TIME...GREATEST THREAT INTO EARLY AFTERNOON. HAZARD...MAINLY DAMAGING WINDS ALONG WITH LARGE HAIL. BERG NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 6:42 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 28 min |
| Aug 14, 7:09 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 31 min |
| Aug 14, 8:33 AM CDT | Severe Thunderstorm Warning | FGF | Norman | 32 min |
| Aug 14, 9:20 AM CDT | Severe Thunderstorm Warning | FGF | Becker | 30 min |
| Aug 14, 9:23 AM CDT | Severe Thunderstorm Warning | FGF | Norman | 32 min |
| Aug 14, 9:52 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard | 28 min |
| Aug 14, 10:04 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 31 min |
| Aug 14, 10:19 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard | 31 min |
| Aug 14, 10:34 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay | 31 min |
| Aug 14, 10:41 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 29 min |
| Aug 14, 10:48 AM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 32 min |
| Aug 14, 10:57 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 28 min |
| Aug 14, 11:07 AM CDT | Severe Thunderstorm Warning | FGF | Becker | 28 min |
| Aug 14, 11:17 AM CDT | Severe Thunderstorm Warning | FGF | Mahnomen | 28 min |
| Aug 14, 11:31 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 29 min |
| Aug 14, 11:53 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wadena | 32 min |
| Aug 14, 11:59 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Hubbard | 31 min |
| Aug 14, 12:32 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 28 min |
| Aug 14, 12:35 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 30 min |
| Aug 14, 12:58 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 32 min |
| Aug 14, 1:48 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 32 min |
| Aug 14, 2:12 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 28 min |
| Aug 14, 6:33 PM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods | 47 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2000Every severe thunderstorm warning in 2000
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.