Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 117, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 7, 2000, 6:18 AM CDT for Eddy 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
- Jul 7, 2000, 6:18 AM CDT (11:18 UTC)
- Expired
- Jul 7, 2000, 6:50 AM CDT
- In force
- 32 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Eddy County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 7, 6:32 AM CDT | Hail 1.5 | Sheyenne, 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, 11.3 hours before the alert went out and 151 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
- 2179 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1212 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 409 m²/s²
- Significant tornado parameter
- 3.5
- Supercell composite
- 29.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 071119 SVRFAR NDC027-071148- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 618 AM CDT FRI JUL 7 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EDDY COUNTY IN NORTHEAST NORTH DAKOTA * UNTIL 650 AM CDT * AT 613 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES WEST OF SHEYENNE...OR ABOUT 33 MILES SOUTHWEST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 55 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... NEW ROCKFORD AT 625 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4779 9954 4767 9935 4764 9896 4783 9910 NNNN $$ 08
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 7, 3:50 AM CDT, 2 hours 28 minutes earlier.
Area forecast discussion, Jul 7, 3:50 AM CDT, 2 hours 28 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 350 AM CDT FRI JUL 7 2000 FCST CHALLLENGE...SVR THREAT THIS AM. ADDN TSTMS TNGT. NEAR TERM...TSTMS ROUNDING THE THICKNESS RIDGE IN SRN MAN ARE BEGINNING TO DROP SEWD TOWARD NRN MN...WHILE ADDN CONVECTION DEVELOPS ACROSS THE RRV INTO NW MN...AND ALG THE SFC BNDRY FM SRN MAN INTO ERN MT. 00Z ETA AND 06Z MESOETA MAINTAIN FAIR AMOUNT OF INSTABILITY ACRS THE CWFA TDY WITH GOOD DEEP LAYER SHEAR THROUGHTHE MORNING HOURS. POSSIBLE BOWECHO FORMATION OCCURRING EAST OF MOT AND MOVING INTO NERN ND. 90+KT H3 JET STREAK EVIDENT LIFTING FM MLS INTO ISN ATTM PROVIDING DANGEROUS KICK TO ANY ACTIVITY. WILL NEED TO CLOSELY WATCH ANY DEVELOPMENT...WITH BIGGEST THREAT ACROSS NCNTRL AND NERN ND THIS AM. MODELS CONTINUE TO FCST PCPN DEVELOPING DOWN INTO THE RRV AND NW MN THROUGH TDY...SO WILL KEEP POPS IN SCT TO LIKELY REALM TDY AND TNGT. WILL DROP FFW SINCE STORMS ARE MOVING RAPIDLY WITH GOOD STEERING FLOW. LOCAL RAINS MAY BE HEAVY AT TIMES BUT TRAINING ECHOS ARE NOT LIKELY. WILL NEED TO WATCH SITUATION IF MULTIPLE ECHO PASSES SEEMS A POSSIBILITY. MID TERM...ETA DRIVES NEXT VORT ACROSS SRN ZONES ON SAT WHILE KEEPING NORTHERN ZONES ON DRIER NORTH END OF WEAK BOUNDARY. FOR NOW THIS SEEMS LIKE A REASONABLE DEPICTION WITH SOME AGREEMENT FM NGM. AVN STAYS DRY. EXTENDED...NOT MUCH TIME TO LOOK AT EXTENDED. WILL STAY WITH PREVIOUS PACKAGE. .FGF...NONE. GUST q
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 2:21 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 29 min |
| Jul 7, 2:49 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 31 min |
| Jul 7, 4:44 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 31 min |
| Jul 7, 6:03 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey, Walsh | 32 min |
| Jul 7, 6:37 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 28 min |
| Jul 7, 6:52 AM CDT | Severe Thunderstorm Warning | FGF | Eddy, Nelson | 28 min |
| Jul 7, 7:05 AM CDT | Severe Thunderstorm Warning | FGF | Benson | 30 min |
| Jul 7, 9:45 AM CDT | Severe Thunderstorm Warning | FGF | Nelson | 30 min |
| Jul 7, 10:11 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 29 min |
| Jul 7, 10:52 AM CDT | Severe Thunderstorm Warning | FGF | Nelson, Walsh | 28 min |
| Jul 7, 11:20 AM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 30 min |
| Jul 7, 11:28 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 47 min |
| Jul 7, 11:43 AM CDT | Severe Thunderstorm Warning | FGF | Steele | 32 min |
| Jul 7, 11:52 AM CDT | Flash Flood Warning | FGF | Grand Forks | 6 hr |
| Jul 7, 11:52 AM CDT | Flash Flood Warning | FGF | Grand Forks, Nelson | 6 hr |
| Jul 7, 12:15 PM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 45 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.