Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 121, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 4, 2000, 7:24 PM CDT for Divide County, Williams County, North Dakota. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 4, 2000, 7:24 PM CDT (00:24 UTC)
- Expired
- Aug 4, 2000, 8:20 PM CDT
- In force
- 56 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Divide County, ND, Williams County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 8:00 PM CDT | Hail 0.75 | Bonetraill, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 4, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 0.4 hours before the alert went out and 234 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
- 129 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1929 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -112 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KBIS 050024 SVRISN NDC023-105-050120- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILLISTON ND 724 PM CDT FRI AUG 4 2000 THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN DIVIDE COUNTY IN NORTHWESTERN NORTH DAKOTA WESTERN WILLIAMS COUNTY IN NORTHWESTERN NORTH DAKOTA * UNTIL 820 PM CDT * AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM A LINE OF THUNDERSTORMS FROM FORTUNA...TO WEST OF THE TRENTON AREA... MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TRENTON AT 730 PM CDT FORTUNA 725 PM CDT GRENORA 730 PM CDT0 I THIS IS A DANGEROUS STORM! STAY INDOORS AWAY FROM WINDOWS. MR N
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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 3:24 PM CDT, 4 hours earlier.
Area forecast discussion, Aug 4, 3:24 PM CDT, 4 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 325M CDT FRI AUG 4 2000 PROBLEM FOR TODAY WILL BE THE PLACEMENT AND INTENSITY OF THIS EVENINGS THUNDERSTORMS. TO SOLVE THE PROBLEM THE AVN MODEL WAS USED DUE TO THE INITIALIZATION STATUS. ETA IS THE ODD MODEL OUT. THUNDERSTORMS WILL LIKELY BE FOCUSED ALONG THE SURFACE TROF. WITH THE TRIGGERING OF THE STORMS ALONG THE WARM/COLD FRONTS. CURRENT SURFACE ANALYSIS SHOWS THE WARM FRONT NEAR THE SD/ND BORDER AND THE COLD FRONT IN CENTRAL MT. AVN SHOWS THE WARM FRONT MOVING NORTHWARD FROM SD TO ND BY LATE AFTERNOON...COLD FRONT ENTERS FROM THE WEST AROUND MIDNIGHT. CURRENT MSAS SHOWS A LARGE AREA OF -8 LI ACROSS MUCH OF THE CWA. EXPECTING TO SEE THUNDERSTORMS TO FORM ALONG THE WARM FRONT IN THE LATE AFTERNOON...WITH ANOTHER SURGE OF STORMS TONIGHT WITH THE COLD FRONT PASSAGE. HIGH DEWPOINTS ALONG WITH GOOD SHEAR PROFILES HINTS AT SOME ORGANIZED STORMS. WITH THE HIGHER MOISTURE VALUES TO THE EAST...EXPECTING TO SEE A LARGE AMOUNT OF RAINFALL...K-INDEX >35. SATURDAY THROUGH SUNDAY LOOKS TO BE UNSETTLED. COOLING OF THE TEMPS ALOFT WILL CAUSE SOME INSTABILITY SHOWERS/THUNDERSTORMS FOR SAT. SAT NIGHT AND SUN AVN SHOWS SOME RIPPLES IN THE HEIGHTS BOTH IN THE MID AND UPPER ATMOS. WILL KEEP SOME SHOWERS IN THE FORECASTS WITH SEASONAL TEMPS. EXTENDED...SUN NIGHT THROUGH MON LOOKS DRY UNDER THE AFFECTS OF HIGH PRESSURE. TUES MORNING MRF SHOWS A SURFACE TROF EXTENDING FROM SASK/MAN. EXPECTING THUNDERSTORMS BOTH TUES AND WED WITH ITS PASSAGE. .BIS...NONE. NED
In the hours before
Special weather statement, Aug 4, 6:48 PM CDT, 36 minutes before
NDZ001-009-017-050030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 647 PM CDT (547 PM MDT) FRI AUG 4 2000 THUNDERSTORMS DEVELOPING IN EASTERN MONTANA WILL MOVE INTO NORTHWEST NORTH DAKOTA AROUND 700 PM CDT. A LINE OF THUNDERSTORMS FROM AROUND PLENTYWOOD MONTANA...TO AROUND GLENDIVE MONTANA WILL BE MOVING EAST THIS EVENING. STRONGEST THUNDERSTORMS WILL BE MOVING TOWARD THE GRENORA AREA WITHIN THE HOUR. SOME OF THESE STORMS WILL HAVE THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS. IF DARK CLOUDS APPROACH...SEEK SHELTER INSIDE A STURDY BUILDING AND STAY OFF THE TELEPHONE IF LIGHTNING IF PRESENT. RUSSELL N
Special weather statement, Aug 4, 7:02 PM CDT, 22 minutes before
NDZ001-009-017-050030- SPECIAL WEATHER STATEMENT...AMENDED NATIONAL WEATHER SERVICE WILLISTON ND 701 PM CDT (601 PM MDT) FRI AUG 4 2000 THUNDERSTORMS DEVELOPING IN EASTERN MONTANA WILL MOVE INTO NORTHWEST NORTH DAKOTA AROUND 700 PM CDT. A LINE OF THUNDERSTORMS FROM AROUND PLENTYWOOD MONTANA...TO AROUND GLENDIVE MONTANA WILL BE MOVING EAST THIS EVENING. STRONGEST THUNDERSTORMS WILL BE MOVING TOWARD THE GRENORA AND FORTUNA AREAS. SOME OF THESE STORMS WILL HAVE THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS. IF DARK CLOUDS APPROACH...SEEK SHELTER INSIDE A STURDY BUILDING AND STAY OFF THE TELEPHONE IF LIGHTNING IF PRESENT. N
Special weather statement, Aug 4, 7:06 PM CDT, 18 minutes before
NDZ001-009-017-050030- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE WILLISTON ND 705 PM CDT (600 PM MDT) FRI AUG 4 2000 THUNDERSTORMS DEVELOPING IN EASTERN MONTANA WILL MOVE INTO NORTHWEST NORTH DAKOTA AROUND 700 PM CDT. A LINE OF THUNDERSTORMS FROM AROUND PLENTYWOOD MONTANA...TO AROUND GLENDIVE MONTANA WILL BE MOVING EAST THIS EVENING. STRONGEST THUNDERSTORMS WILL BE MOVING TOWARD THE GRENORA AND FORTUNA AREAS. SOME OF THESE STORMS WILL HAVE THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS. IF DARK CLOUDS APPROACH...SEEK SHELTER INSIDE A STURDY BUILDING AND STAY OFF THE TELEPHONE IF LIGHTNING IF PRESENT. MR N
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:31 PM CDT | Severe Thunderstorm Warning | BIS | Divide, McKenzie, Williams | 59 min |
| Aug 4, 8:55 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 65 min |
| Aug 5, 3:46 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 59 min |
| Aug 5, 4:31 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 59 min |
| Aug 5, 5:21 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Oliver | 39 min |
| Aug 5, 6:13 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 47 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.