Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 140, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 8, 2000, 10:53 PM CDT for Otter Tail County, Minnesota. It was in force for 47 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
- Jul 8, 2000, 10:53 PM CDT (03:53 UTC)
- Expired
- Jul 8, 2000, 11:40 PM CDT
- In force
- 47 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 193 km from the middle of the area, began a volume at 03:54 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 |
|---|---|---|---|
| Jul 8, 11:30 PM CDT | Hail 0.88 | Battle Lake, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 8, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.9 hours before the alert went out and 220 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
- 3971 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1312 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 17.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 090355 SVRFAR MNC111-090440- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 1053 PM CDT SAT JUL 8 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA * UNTIL 1140 PM CDT * AT 1049 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERAL SEVERE THUNDERSTORM 4 MILES NORTH OF CLITHERALL...OR ABOUT 21 MILES EAST OF FERGUS FALLS TO WRIGHTSTOWN OR 40 MILES EAST OF FERGUS FALLS...MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... VINING AT 1100 PM CDT... HENNING AT 1105 PM CDT... ALMORA AT 1110 PM CDT... PARKERS PRAIRIE AT 1115 PM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT SUNDAY MORNING FOR WEST CENTRAL MINNESOTA. LAT...LON 4645 9566 4614 9578 4614 9519 4643 9519 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 Jul 8, 9:00 PM CDT, 1 hour 53 minutes earlier.
Area forecast discussion, Jul 8, 9:00 PM CDT, 1 hour 53 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 900 PM CDT SAT JUL 8 2000 VRY UNSTABLE ATMOSPHERE REMAINS ACRS THE REGION WITH ETA 850 HPA THETA-E ARND 350+K OVR THE SRN COUNTIES LWRG TO 330K IN THE N COUNTIES. A COL SETS UP TNGT AT 850 HPA HOWEVER FLOW WAS MUCH STRONGER E OF THE CWFA. WATER VAPOR LOOP SHOWING A SHORT WV OVR SW SD/NW NEB MOVG NE. STORMS WERE FIRING UP IN WRN SD OR E OF THE SHORT WV. NW FLOW MOVS INTO THE CWFA TNGT WITH SUBSIDENCE FCST OVR ND. THE SUBSIDENCE CREATES LWR DWPNTS AT 700 HPA WHICH WL INCR THE CONVECTIVE INSTABLITY. CAA WND PROFILE TO CONT ACRS THE N AND AND WAA WND PROFILE CONT ACRS SD. ETA MODEL SNDGS INDICATE CAA TO KICK IN SUN MORN ACRS THE CWFA. NE-SW BAND OF HI BASED CONVECTION MOVD THRU NRN VLY LATE AFTN AND HAS SINCE DSIPTD BUT CLD LINE REMAINS ON VSB STLT. SUSPECT CLD LINE IS THE LEADING EDGE OF DRIER AIR ALF. 88D SHOWING GOOD CONVECTION HAS FIRED UP OVR SE COUNTIES. WITH THE COMBINATION OF APPROACHING SHORT WV, LWR DWPNT BNDRY ALF MOVG S, AND GOOD MSTR GRAD ACRS THE REGION WL KEEP THREAT OF SVR WX/HVY RAIN FOR TNGT ACRS THE S. .F&GF...FLASH FLOOD WATCH TNGT MN029>032-040-ND0049-052-053. HOPPES
In the hours before
Local storm report, Jul 8, 10:02 PM CDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1002 PM CDT SAT JUL 08 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0846 PM 5 W NEW YORK MILLS MN 4.5 INCH HAIL
07/08/00 OTTER TAIL
0900 PM 7 SW NEW YORK MILLS MN 2.75 INCH HAIL
07/08/00 OTTER TAIL
0920 PM DEER CREEK MN 3 INCH HAIL
07/08/00 OTTER TAIL
0925 PM VERNDALE MN TORNADO
07/08/00 WADENA BRANCHES DOWN, PRELIMINARY
REPORT
0926 PM DEER CREEK MN 1.75 INCH HAIL
07/08/00 OTTER TAIL
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 8:10 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 30 min |
| Jul 8, 8:41 PM CDT | Tornado Warning | FGF | Otter Tail | 29 min |
| Jul 8, 8:44 PM CDT | Severe Thunderstorm Warning | FGF | Wadena | 31 min |
| Jul 8, 9:12 PM CDT | Tornado Warning | FGF | Otter Tail | 18 min |
| Jul 8, 9:16 PM CDT | Tornado Warning | FGF | Wadena | 29 min |
| Jul 8, 9:49 PM CDT | Flash Flood Warning | FGF | Otter Tail, Wadena | 4 hr |
| Jul 8, 10:25 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 30 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.