Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 188, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 14, 2000, 4:24 AM CDT for Barnes County, Cass County, North Dakota. It was in force for 46 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 14, 2000, 4:24 AM CDT (09:24 UTC)
- Expired
- Aug 14, 2000, 5:10 AM CDT
- In force
- 46 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Barnes County, ND, Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 70 km from the middle of the area, began a volume at 09:26 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 14, 4:30 AM CDT | Hail 1.75 | Fingal, 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, 9.4 hours before the alert went out and 223 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
- 56 J/kg
- Mixed-layer CIN
- -452 J/kg
- Mixed-layer LCL
- 2518 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 434 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
278 WUUS53 KFGF 140925 SVRFAR NDC003-017-141010- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 424 AM CDT MON AUG 14 2000 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BARNES COUNTY IN SOUTHEAST NORTH DAKOTA... THIS INCLUDES THE CITY OF VALLEY CITY CASS COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 510 AM CDT * AT 421 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 20 MILES NORTH OF VALLEY CITY TO 16 MILES SOUTHEAST OF VALLEY CITY...MOVEMENT WAS TO THE EAST AT 55 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... LUCCA AT 425 AM CDT... TOWER CITY AT 430 AM CDT... ALICE AT 435 AM CDT... AYR AT 440 AM CDT... THIS STORM HAS THE POTENTIAL TO PRODUCE DAMAGING WINDS TO NEAR 70 MPH AND VERY LARGE HAIL TO 1.5 INCH IN DIAMETER. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4720 9842 4666 9833 4668 9685 4718 9692 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 14, 3:14 AM CDT, 1 hour 10 minutes earlier.
Area forecast discussion, Aug 14, 3:14 AM CDT, 1 hour 10 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 310 AM MON AUG 14 2000 ...MAIN CONCERNS THIS PACKAGE CENTER ON SEVERE CONVECTIVE THREAT DURING FIRST PERIOD... .CURRENT OBSERVATIONAL OVERVIEW... 07Z MSAS DATA SETS CONFIRMED LOW PRESSURE VICINITY OF EXTREME SOUTHEAST MONTANA WITH INVERTED TROUGH AXIS EXTENDING NORTHWARD INTO SOUTHERN SASK PROVINCE. STRONGEST SURFACE BASED INSTABILITY AND MOISTURE FLUX CONVERGENCE ATTM VICINITY OF WESTERN NODAK I.E. VICINITY OF DEVELOPING CONVECTIVE COMPLEX. LATEST KMVX VAD WIND PROFILE DEPICTED RATHER POTENT LOW-LEVEL 40 KTS JUST OFF THE SURFACE WITH GOOD VEERING WITH HEIGHT NOTED. .SHORT TERM... HERE WE GO AGAIN...PER ADVERTISED. STRONG CORE OF UPPER LEVEL WESTERLIES WITH EMBEDDED PIECES OF SHORTWAVE ENERGY STREAKING EAST OVER THE TOP OF CENTRAL PLAINS 5H RIDGE RESULTING IN SEVERE CONVECTION ACROSS NODAK. EXTRAPOLATION OF SURFACE BASED TROUGH AND INSTABILITY PARAMETERS SUGGESTS SEVERE CONVECTIVE THREAT SHOULD SLOWLY SHIFT EAST OF THE VALLEY BY AFTERNOON INTO MINNESOTA...REFER TO SPC DAY ONE OUTLOOK FOR FURTHER DETAILS. BASED ON ABOVE SCENARIO WILL END CONVECTIVE THREAT FROM WEST TO EAST AS DAY WEARS ON. .LONG TERM... IN WAKE OF TROUGH EXPECT SOUTHERN SASK PROVINE HIGH TO RIDGE SOUTHEAST INTO REGION TONIGHT AND TUESDAY WITH THE RESULTANT BEING TEMPERATURE AND HUMIDITY REDUCTION. NO CHANGES PLANNED TO EXTENDED ATTM. .FGF...NONE. BERG
In the hours before
Local storm report, Aug 14, 2:00 AM CDT, 2 hours 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
200 AM CDT MON AUG 14 2000
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1150 AM 10 N CALVIN ND .75 INCH HAIL
08/13/00 CAVALIER
1253 AM 2 SE MILTON ND TORNADO
08/14/00 CAVALIER COUNTY SHERIFF REPORTED
BRIEF TOUCHDOWN WITH BARN
DESTROYED AND ROOF TORN
OFF OF SHOP
NThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 11:27 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 43 min |
| Aug 14, 1:14 AM CDT | Tornado Warning | FGF | Pembina, Walsh | 31 min |
| Aug 14, 3:40 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 45 min |
| Aug 14, 4:22 AM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 43 min |
| Aug 14, 5:08 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 32 min |
| Aug 14, 5:51 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 30 min |
| Aug 14, 7:16 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 29 min |
| Aug 14, 7:58 AM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 32 min |
| Aug 14, 9:13 AM CDT | Severe Thunderstorm Warning | FGF | Traill | 32 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.