Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 61, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 12, 2000, 9:23 PM CDT for Nelson County, North Dakota. It was in force for 32 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 12, 2000, 9:23 PM CDT (02:23 UTC)
- Expired
- Jun 12, 2000, 9:55 PM CDT
- In force
- 32 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), 79 km from the middle of the area, began a volume at 02:23 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 12, 9:30 PM CDT | Hail 1.25 | Michigan City, 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 |
|---|---|---|---|
| Jun 12, 4:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.4 hours before the alert went out and 235 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
- 1445 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1745 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 130224 SVRFAR NDC063-130255- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 923 PM CDT MON JUN 12 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NELSON COUNTY IN NORTHEAST NORTH DAKOTA * UNTIL 955 PM CDT * AT 918 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTH OF MICHIGAN...OR ABOUT 37 MILES EAST OF DEVILS LAKE...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MICHIGAN AT 925 PM CDT PETERSBURG AT 935 PM CDT REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4794 9832 4782 9812 4802 9793 4815 9801 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 12, 8:20 PM CDT, 1 hour 3 minutes earlier.
Area forecast discussion, Jun 12, 8:20 PM CDT, 1 hour 3 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 820 PM CDT MON JUN 12 2000 SVR WEATHER IS THE FOCUS THIS EVENING. SFC LOW IN FAR NW SD WITH WARM FRONT FROM JUST NORTH OF BIS TO JUST NORTH OF GFK TO FAR NW MN. STORMS CONTINUE ALONG THIS BOUNDARY WHERE GOOD THETA-E ADVECTION AND MOISTURE COVERGENCE. RUC SHOWS 85H JET INCREASING FROM CNTRL INTO CNTRL ND ATTM WITH 85H WINDS BEGINNING TO WASH BOUNDARY IN NE ND OUT. EARLIER GOES IMAGERY SHOWS 5000 J/KG CAPE ESTIMATE OVER SRN CWFA. EXPECT...TSTMS TO CONTINUE ALONG FRONT AND BUILD WEST INTO CNTRL ND. MIGHT BE A BRIEF LULL IN ACTIVITY...BUT TSTMS IN SW ND WILL INCREASE AS IT MOVES EAST TOWARD LLJ AND LOOKS LIKE MCS POTENTIAL OVERNIGHT FOR MUCH OF CWFA. ZFP ATTM LOOKS GOOD AND WILL TWEEK WITH WATCH EXPIRATION/NEW WATCH CLOSER TO 10 PM. .FGF...NONE RIDDLE @
In the hours before
Local storm report, Jun 12, 9:06 PM CDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
906 PM CDT MON JUN 12 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0359 PM 3 W GRAFTON ND .88 INCH HAIL
06/12/00 WALSH
0420 PM GRAFTON ND .75 INCH HAIL
06/12/00 WALSH
0455 PM GRAFTON ND .88 INCH HAIL
06/12/00 WALSH
0500 PM 3 NE ANETA ND .88 INCH HAIL
06/12/00 NELSON
0515 PM 5 NE GRAFTON ND WIND DAMAGE
06/12/00 WALSH THUNDERSTORM WINDS DOWNED
TREES
0521 PM 5 NE GRAFTON ND WIND DAMAGE
06/12/00 WALSH THUNDERSTORM WIND DOWNED
TREES.
0525 PM 3 NE ANETA ND 1 INCH HAIL
06/12/00 NELSON
0535 PM 3 NE ANETA ND 1 INCH HAIL
06/12/00 NELSON
0542 PM 8 W LARIMORE ND .75 INCH HAIL
06/12/00 GRAND FORKS
0600 PM 3 NE ANETA ND 1.75 INCH HAIL
06/12/00 NELSON
0610 PM 7 W LARIMORE ND .75 INCH HAIL
06/12/00 GRAND FORKS
0635 PM 8 W LARIMORE ND TORNADO
06/12/00 GRAND FORKS TRAINED SPOTTER REPORTED
200-300 FT WIDE TORNADO ON
THE GROUND IN OPEN
COUNTRY.
0635 PM 5 W LARIMORE ND .75 INCH HAIL
06/12/00 GRAND FORKS
0703 PM 5 W GRAND FORKS AFB ND TORNADO
06/12/00 GRAND FORKS BRIEF TOUCHDOWN REPORTED
BY OBSERVERS AT THE GRAND
FORKS AIR FORCE BASE
TOWER.
0715 PM HANNAFORD ND .75 INCH HAIL
06/12/00 GRIGGS
0735 PM HONEYFORD ND .88 INCH HAIL
06/12/00 GRAND FORKS
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:23 PM CDT | Tornado Warning | FGF | Grand Forks | 32 min |
| Jun 12, 7:25 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 30 min |
| Jun 12, 7:53 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 47 min |
| Jun 12, 7:55 PM CDT | Tornado Warning | FGF | Grand Forks | 30 min |
| Jun 12, 8:12 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 33 min |
| Jun 12, 8:25 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 30 min |
| Jun 12, 8:39 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 46 min |
| Jun 12, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 47 min |
| Jun 12, 8:54 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 31 min |
| Jun 12, 9:18 PM CDT | Tornado Warning | FGF | Grand Forks | 32 min |
| Jun 12, 9:54 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 46 min |
| Jun 12, 9:59 PM CDT | Severe Thunderstorm Warning | FGF | Eddy, Nelson | 31 min |
| Jun 12, 10:37 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 28 min |
| Jun 12, 10:40 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 30 min |
| Jun 12, 10:43 PM CDT | Flash Flood Warning | FGF | Grand Forks, Nelson | 2 hr |
| Jun 12, 11:06 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 44 min |
| Jun 12, 11:48 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 42 min |
| Jun 13, 12:01 AM CDT | Severe Thunderstorm Warning | FGF | Nelson | 44 min |
| Jun 13, 12:18 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 32 min |
| Jun 13, 12:40 AM CDT | Flash Flood Warning | FGF | Eddy, Grand Forks, Nelson | 6 hr |
| Jun 13, 12:44 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele | 46 min |
| Jun 13, 2:17 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 43 min |
| Jun 13, 3:19 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 46 min |
| Jun 13, 6:46 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 29 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.