Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 220, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 16, 2000, 11:28 AM CDT for Cass 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
- Aug 16, 2000, 11:28 AM CDT (16:28 UTC)
- Expired
- Aug 16, 2000, 12:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 83 km from the middle of the area, began a volume at 16:29 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 16, 11:30 AM CDT | Hail 1 | Alice, 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
Aberdeen, SD (KABR), launched 12:00Z, 4.5 hours before the alert went out and 221 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2119 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 161628 SVRFAR NDC017-161700- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 1128 AM CDT WED AUG 16 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CASS COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL NOON CDT * AT 1124 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTH OF ALICE...OR ABOUT 26 MILES SOUTHEAST OF VALLEY CITY...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ALICE AT 1135 AM CDT... EMBDEN AT 1150 AM CDT... CHAFFEE AT 1155 AM CDT... WHEATLAND AT NOON CDT...a REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4673 9768 4665 9749 4683 9712 4698 9739 $$ DJK 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 16, 9:58 AM CDT, 1 hour 30 minutes earlier.
Area forecast discussion, Aug 16, 9:58 AM CDT, 1 hour 30 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 958 AM CDT WED AUG 16 2000 ...TSRA TRENDS THROUGH AFTN CURRENT FORECAST CONCERNS... KMVX 88D LIGHTING UP WITH AREA OF TSRA ACROSS WRN CWA. STRONGEST ACTIVITY CONTINUING ON SRN EDGE NEAR JMS-VALLEY CITY WITH IR SHOWING TOPS COOLING. 12Z ETA MAXIMIZING H85-H7 WAA IN MOT-DVL CORRIDOR AT 18Z WITH 30KT INFLOW AHEAD OF MID LEVEL TROF. H3 100KT JET PLOWING ACROSS INTL BORDER ALSO PROVIDING STRONG U/L DIVERGENCE IN ITS FAVORED LFQ. SFC ANALYSIS INDICATES LO PRES IN WRN NE WITH INVERTED TROF ARCING NORTH...JUST EAST OF KISN. MAIN WMFNT WELL SOUTH...NEAR KFSD IN FAR SOUTH MN. APPEARS NRN EDGE OF CONVECTION WEAKENS AS IT HEADS TOWARD FAR NE ND AND ENTERS MUCH DRIER LOW LEVEL THETA-E AIR...SERIOUSLY LACKING H85 TD/S AND WEAKER H85 FLO. THEREFORE EXPECT HIGHEST QPF TO OCCUR FROM AREAS JUST SOUTH OF DVL THEN SE THRU SE ND AND EVENTUALLY WCNTRL MN ZONES. BULLSEYE OF H85 MOIST CONVERGENCE PROGGED BTWEEN JMS-KFAR 18Z-00Z TIMEFRAME AS ACTION NEAR SRN WMFNT BEGINS TO PULL N. POSSIBLE ISOLD SVR THRU AFTN IN ESP SW/S CWA...ALTHO ELEVATED NATURE OF STORMS WL MAKE IT HARD FOR MUCH WIND TO MIX DOWN BLO INVERSION WITH SOME HAIL MAIN THREAT. WL UPDATE FOR TIMING OF PRECIP AND POSSIBLE TWEAKS TO HIGH TEMPS BASED ON LATE SATELLITE TRENDS. .FGF..NONE. SOROKA
In the hours before
Special weather statement, Aug 16, 6:56 AM CDT, 4 hours 32 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-161400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 656 AM CDT WED AUG 16 2000 ...SCATTERED THUNDERSTORMS TODAY AND THIS EVENING... SYNOPSIS...LOW PRESSURE WAS OVER NORTHEAST WYOMING THIS MORNING WITH A TROUGH OF LOW PRESSURE NORTH INTO SASKATCHEWAN. SCATTERED THUNDERSTORMS WILL DEVELOP AHEAD OF THIS SYSTEM OVER THE DAKOTAS TODAY AND MOVE INTO NORTHWEST MINNESOTA LATER THIS AFTERNOON AND TONIGHT. NO SEVERE WEATHER IS EXPECTED TODAY OR TONIGHT WITH THIS SYSTEM. THE BEST INSTABILITY WILL BE LOCATED TO OUR SOUTH OVER EASTERN SOUTH DAKOTA INTO SOUTH7ERN MINNESOTA. RIDDLE NNNN
Special weather statement, Aug 16, 10:52 AM CDT, 36 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-161355- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1052 AM CDT WED AUG 16 2000 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... SYNOPSIS...LOW PRESSURE WAS OVER NORTHEAST WYOMING WITH A TROUGH OF LOW PRESSURE NORTH INTO SASKATCHEWAN. SCATTERED THUNDERSTORMS DEVELOPING AHEAD OF THIS SYSTEM OVER SOUTH CENTRAL NORTH DAKOTA THIS AFTERNOON WILL MOVE SOUTHEAST INTO SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA BY THIS EVENING. A FEW STORMS MAY BECOME SEVERE THROUGH THE AFTERNOON INTO THE EVENING...MAINLY ALONG AND SLOUTH OF I94...ON A LINE FROM VALLEY CITY TO FARGO AND THEN EAST THROUGH LAKES COUNTRY. THE MAIN THREAT WILL BE LARGE HAIL WITH THESE STORMS. SOROKA NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 10:14 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 31 min |
| Aug 16, 10:55 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 45 min |
| Aug 16, 11:57 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 33 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.