Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 18, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 6, 2000, 2:42 AM CDT for Ramsey County, North Dakota. It was in force for 28 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
- May 6, 2000, 2:42 AM CDT (07:42 UTC)
- Expired
- May 6, 2000, 3:10 AM CDT
- In force
- 28 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Ramsey County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 136 km from the middle of the area, began a volume at 07:41 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 |
|---|---|---|---|
| May 6, 2:47 AM CDT | Hail 1 | Edmore, 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, 7.7 hours before the alert went out and 237 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
- 1703 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1710 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
385 WUUS53 KFGF 060742 SVRFAR NDC071-060810- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 242 AM CDT SAT MAY 6 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA * UNTIL 310 AM CDT * AT 236 AM CDT...NATIONAL WEATHER SEVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES SOUTHWEST OF DERRICK...OR ABOUT 18 MILES NORTHEAST OF DEVILS LAKE...MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DERRICK AT 250 AM CDT EDMORE AT 255 AM CDT REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4836 9882 4823 9863 4844 9836 4852 9849 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 May 5, 8:55 PM CDT, 5 hours 47 minutes earlier.
Area forecast discussion, May 5, 8:55 PM CDT, 5 hours 47 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 855 PM CDT FRI MAY 5 2000 SEVERE THUNDERSTORMS CONTINUE TO FIRE OVER NW MN THIS EVENING...WITH SVR THUNDERSTORM WATCH JUST ARRIVING. MOST ACTIVITY CONFINED ALONG AND NORTH OF SFC BOUNDARY ATTM WHERE BEST MOISTURE CONVERGENCE LOCATED. WITH MAIN UPPER LEVEL SYSTEM STILL WELL OFF TO THE SOUTHEAST AND WITH SFC LOW STILL HOLDING OVER ERN WY...LOOK LIKE IT WILL BE A BUSY NIGHT. WILL NOT MAKE ANY ADJUSTMENTS TO ZONES OTHER THAN ADDING IN WATCH WHICH WILL BE ISSUED SHORTLY. RJT
In the hours before
Local storm report, May 6, 1:33 AM CDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
133 AM CDT SAT MAY 06 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0820 PM LAKE BRONSON MN .75 INCH HAIL
05/05/00 KITTSON DIME SIZED HAIL REPORTED
BY SPOTTER
0842 PM KARLSTAD MN .88 INCH HAIL
05/05/00 KITTSON NICKLE SIZED HAIL REPORTED
BY SPOTTER
0850 PM LAKE BRONSON MN .88 INCH HAIL
05/05/00 KITTSON NICKLE SIZE HAIL REPORTED
BY SPOTTER
0852 PM BADGER MN 1 INCH HAIL
05/05/00 ROSEAU QUARTER SIZE HAIL FELL FOR
5 TO 10 MINUTES. DIME SIZE
HAIL ALSO REPORTED AT
BADGER
0900 PM MIDDLE RIVER MN WIND DAMAGE
05/05/00 MARSHALL METAL BUILDING LOST
PORTION OF ROOF AND WAS
MOVED OFF OF FOUNDATION
DELAYED REPORT FROM HAM
OPERATOR
0920 PM BINFORD ND 1.5 INCH HAIL
05/05/00 GRIGGS QUARTER SIZE HAIL ALSO
REPORTED IN BINFORD AT 817
PM CST
0925 PM 16 NE MIDDLE RIVER MN .75 INCH HAIL
05/05/00 MARSHALL DIME SIZE HAIL REPORTED BY
SPOTTER
0950 PM ANETA ND 1.5 INCH HAIL
05/05/00 NELSON 1.5 INCH HAIL REPORTED BY
SPOTTER
0956 PM ANETA ND 1.75 INCH HAIL
05/05/00 NELSON GOLFBALL SIZE HAIL
REPORTED BY SHERIFF OFFICE
NNNN
RJTLocal storm report, May 6, 1:54 AM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
154 AM CDT SAT MAY 06 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1015 PM ANETA ND .75 INCH HAIL
05/05/00 NELSON DIME SIZE HAIL REPORTED BY
SPOTTER
1041 PM 1 S EMERADO ND .75 INCH HAIL
05/05/00 GRAND FORKS DIME SIZE HAIL REPORTED BY
HAM RADIO OPERATOR
1100 AM HALLOCK MN .75 INCH HAIL
05/05/00 KITTSON DIME SIZE HAIL REPORTED BY
SPOTTER
NNNN
RJTLocal storm report, May 6, 1:54 AM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECT HALLOCK TIME
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
154 AM CDT SAT MAY 06 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1015 PM ANETA ND .75 INCH HAIL
05/05/00 NELSON DIME SIZE HAIL REPORTED BY
SPOTTER
1041 PM 1 S EMERADO ND .75 INCH HAIL
05/05/00 GRAND FORKS DIME SIZE HAIL REPORTED BY
HAM RADIO OPERATOR
1100 AM HALLOCK MN .75 INCH HAIL
05/05/00 KITTSON DIME SIZE HAIL REPORTED BY
SPOTTER
NNNN
RJTThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 9:13 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 42 min |
| May 5, 9:53 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson, Steele | 42 min |
| May 5, 9:53 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 42 min |
| May 5, 10:10 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 40 min |
| May 5, 10:52 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 33 min |
| May 6, 1:40 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 30 min |
| May 6, 1:40 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 30 min |
| May 6, 2:11 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey | 29 min |
| May 6, 2:40 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 45 min |
| May 6, 2:53 AM CDT | Severe Thunderstorm Warning | FGF | Nelson, Walsh | 32 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.