Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 227, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 28, 2000, 6:14 AM CDT for Eddy 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
- Aug 28, 2000, 6:14 AM CDT (11:14 UTC)
- Expired
- Aug 28, 2000, 6:45 AM CDT
- In force
- 31 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), 136 km from the middle of the area, began a volume at 11:15 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 |
|---|---|---|---|
| Aug 28, 6:25 AM CDT | Hail 1 | Brantford, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 28, 5:30 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 11.2 hours before the alert went out and 153 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
- 2086 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 1409 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
984 WUUS53 KFGF 281114 SVRFAR NDC027-281145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 614 AM CDT MON AUG 28 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN EDDY COUNTY IN NORTHEAST NORTH DAKOTA... * UNTIL 645 AM CDT * AT 609 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES WEST OF NEW ROCKFORD...OR ABOUT 39 MILES SOUTHWEST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... NEW ROCKFORD AT 620 AM CDT... BRANTFORD AT 640 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT MONDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4773 9938 4755 9941 4748 9876 4770 9872 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 28, 2:10 AM CDT, 4 hours 4 minutes earlier.
Area forecast discussion, Aug 28, 2:10 AM CDT, 4 hours 4 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 210 AM CDT MON AUG 28 2000 ...FORECAST CONCERNS CENTER AROUND CONVECTIVE THREAT DURING FIRST PERIOD... ...CURRENT OBSERVATIONAL OVERVIEW... 06Z MSAS DATA SETS DEPICTED COMPLEX SURFACE PATTERN WITH LOW PRESSURE OVER EXTREME SOUTHEAST MONTANA WHILE A COLD FRONT WAS POISED VICINITY OF EXTREME NORTHWEST NODAK. LATEST IR SATELLITE IMAGERY INDICATED CONVECTION LIFTING NORTHEAST INTO WESTERN NODAK AHEAD OF EASTWARD ADVANCING NORTHWEST MONTANA SHORTWAVE TROUGH. .SHORT TERM... EXPECT AFOREMENTIONED SHORTWAVE TROUGH TO SWING SURFACE TROUGH EAST TO RED RIVER VALLEY BY 18Z AND THEN TO THE ARROWHEAD OF MINNESOTA BY EARLY EVENING. RATHER DECENT THERMODYNAMIC AND DYNAMIC PARAMETERS (85H STRONG THETA E ADVECTION AND POTENT 25H JET MAX) SETTING UP AHEAD OF FEATURE SHOULD HELP BREAK CURRENT MID-LEVEL INVERSION (CAP) RESULTING IN CONVECTIVE DEVELOPMENT WORKING FROM WEST TO EAST ACROSS CWFA AS DAY WEARS ON. .LONG TERM... EXPECT SYSTEM TO BE VERY PROGRESSIVE WITH LINGERING CONVECTIVE THREAT EAST THIS EVENING. ELSEWHERE DEVELOPING NORTHWEST FLOW ACCOMPANIED BY STRONG SUBSIDENCE (Q-VECTOR DIVERGENCE) SHOULD SCOUR OUT ANY RESIDUAL MOISTURE WITH MOSTLY CLEAR/BECOMING SKY COVER THE RULE OVERNIGHT. TUESDAY LOOKS TRANQUIL AS REGION BETWEEN SYSTEMS. NEW AVN FASTER WITH8 NEXT SYSTEM WHICH APPEARS TO BE NOTHING TO SNEEZE AT IN LIGHT OF CURRENT PROGRESSIVE UPPER AIR FLOW. WITH THIS IN MIND WILL UPDATE EXTENDED TO INTRODUCE POPS INTO WEDNESDAY PERIOD. .FGF...NONE BERG
In the hours before
Special weather statement, Aug 28, 5:00 AM CDT, 1 hour 14 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-281300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 500 AM CDT MON AUG 28 2000 ...SEVERE THUNDERSTORMS EXPECTED ACROSS MUCH OF EASTERN NORTH DAKOTA AND NORTHWESTERN MINNESOTA TODAY... SYNOPSIS...A STRONG UPPER LEVEL SYSTEM WILL PUSH A COLD FRONT INTO NORTHEAST NORTH DAKOTA THIS MORNING...REACHING THE RED RIVER DURING THE EARLY AFTERNOON....THEN INTO EASTERN MINNESOTA BY EVENING. AHEAD OF THIS FRONT SURFACE DEW POINTS IN THE MID TO UPPER 60S WILL COMBINE WITH SURFACE TEMPERATURES IN THE 80S TO MAKE A VERY UNSTABLE AIRMASS. AREA OF CONCERN...SLIGHT RISK OF SEVERE THUNDERSTORMS THIS MORNING WEST OF THE RED RIVER. INCREASING RISK SHIFTING EAST OF THE RED RIVER THIS AFTERNOON. GREATEST RISK THIS AFTERNOON EAST OF THE RED RIVER ACROSS NORTHWEST MINNESOTA. TIME...WEST OF THE RED RIVER VALLEY THIS MORNING AND VERY EARLY AFTERNOON...EAST OF THE RED RIVER AFTERNOON INTO EARLY EVENING. TYPE OF HAZARD...MAINLY LARGE HAIL AND DAMAGING WINDS. ISOLATED TORNADOES POSSIBLE EAST OF THE RED RIVER. ME/PB NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 5:17 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 58 min |
| Aug 28, 6:00 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 45 min |
| Aug 28, 6:24 AM CDT | Severe Thunderstorm Warning | FGF | Nelson, Walsh | 31 min |
| Aug 28, 6:44 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 46 min |
| Aug 28, 6:44 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 46 min |
| Aug 28, 7:00 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 45 min |
| Aug 28, 7:40 AM CDT | Severe Thunderstorm Warning | FGF | Towner | 30 min |
| Aug 28, 8:23 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 32 min |
| Aug 28, 8:38 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 32 min |
| Aug 28, 8:48 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Walsh | 32 min |
| Aug 28, 9:24 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 31 min |
| Aug 28, 9:52 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 28 min |
| Aug 28, 10:05 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 30 min |
| Aug 28, 10:18 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 32 min |
| Aug 28, 10:33 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 32 min |
| Aug 28, 10:47 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 28 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 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.