Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 141, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 11, 2000, 1:08 PM CDT for Ransom County, North Dakota. It was in force for 32 min. No storm report in the archive falls 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.
The facts
- Issued
- Jul 11, 2000, 1:08 PM CDT (18:08 UTC)
- Expired
- Jul 11, 2000, 1:40 PM CDT
- In force
- 32 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Ransom County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 122 km from the middle of the area, began a volume at 18:07 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.
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 11, 12:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 6.1 hours before the alert went out and 182 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
- 683 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 957 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 111809 SVRFAR NDC073-111840- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 108 PM CDT TUE JUL 11 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA * UNTIL 140 PM CDT * AT 102 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES WEST OF FORT RANSOM...OR ABOUT 29 MILES SOUTH OF VALLEY CITY...MOVEMENT WAS TO THE EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ENGLEVALE AT 120 PM CDT... ELLIOTT AT 125 PM CDT... LISBON AT 135 PM CDT... ANSELM AT 140 PM CDT... THE MAIN THREAT FROM THIS THUNDERSTORM WILL BE GUSTY WINDS IN EXCESS OF 60 MPH. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 6,00 PM CDT TUESDAY EVENING FOR WEST CENTRAL MINNESOTA AND SOUTHEAST NORTH DAKOTA. LAT...LON 4660 9822 4634 9813 4629 9733 4662 9729 NNNN 06
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 11, 10:27 AM CDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jul 11, 10:27 AM CDT, 2 hours 41 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1027 AM CDT TUE JUL 11 2000 ...FORECAST CONCERN IS FLASH FLOODING AND DEVELOPING SEVERE WEATHER THIS AFTERNOON AND EVENING... .FIRST PD... STG MID-LVL SHRTWV OVR WRN ND SHOULD HELP MAINTAIN LARGE AREA OF PCPN THRU THIS AFTN. LOW LVL MSTR FEED FROM SD RATHER GOOD WITH UPSTREAM DWPNTS NEAR 70. PTNL FOR HEAVY RAIN AND FLASH FLOODING THRU TNGT SINCE SOILS RMN WET. RNFL HAS ALREADY RCHD 2.5 INCHES IN SOME AREAS OF NWRN CWFA WITH ANOTHER 1 OR 2 INCHES PSBL. BEST CHC FOR SVR WEATHER LATE THIS AFTN AND EVENING WILL BE INVOF THE SFC LOW AND DVLPG WRMFNT ALG SD/ND BORDER AND WC MN. AIRMASS SHOULD BE ABLE TO HEAT UP BEST IN THAT AREA SINCE RST OF CWFA WILL BE SUBJECTED TO A LOT OF CLDS. AS A RESULT OF LARGE CLD AREA AND PCPN WILL NEED TO LOWER TEMPS SPCLY ACRS ERN ND. .FGF...FLASH FLOOD WATCH ALL COUNTIES EXCEPT ROSEAU AND LAKE OF THE WOODS TODAY AND TONIGHT... BELLES
In the hours before
Special weather statement, Jul 11, 11:15 AM CDT, 1 hour 53 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-111900- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1115 AM CDT TUE JUL 11 2000 ...THREAT FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND EARLY EVENING FOR SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA... SYNOPSIS...A STORM SYSTEM WILL MOVE ACROSS EASTERN NORTH DAKOTA THIS AFTERNOON INTO MINNESOTA THIS EVENING. THIS SYSTEM WILL PROVIDE STRONG UPWARD VERTICAL MOTION. ALTHOUGH CLOUD CLOVER FROM THE MORNING THUNDERSTORMS WILL CAUSE LIMITED INSTABILITY...THIS SYSTEM IS STRONG ENOUGH SO THAT SCATTERED SEVERE THUNDERSTORMS WILL DEVELOP. AREA OF CONCERN...THE BEST CHANCE FOR SEVERE WEATHER IS ALONG AND SOUTH OF A VALLEY CITY TO FARGO TO PARK RAPIDS LINE. TIME...BETWEEN 2 PM AND 8 PM. TYPE OF HAZARD...LARGE HAIL AND VERY HEAVY RAIN IS THE MAIN THREAT. THERE IS A SLIGHT CHANCE FOR ISOLATED TORNADOES ALONG THE SOUTH DAKOTA BORDER EAST TOWARD THE FERGUS FALLS AREA AS THE WIND PROFILE WILL BE FAVORABLE FOR ROTATION. RIDDLE NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 9:44 AM CDT | Flash Flood Warning | FGF | Benson, Ramsey, Towner | 6 hr |
| Jul 11, 3:07 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.