Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 114, NWS Bismarck, ND

August 2, 2000McKenzie County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 2, 2000, 2:57 PM CDT for McKenzie County, North Dakota. It was in force for 63 min. 2 reports 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 2, 2000, 2:57 PM CDT (19:57 UTC)
Expired
Aug 2, 2000, 4:00 PM CDT
In force
63 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County McKenzie County, ND

What was reported inside it

TimeReportWhereRemark
Aug 2, 3:25 PM CDTHail 0.75Alexander, ND
Aug 2, 3:25 PM CDTThunderstorm Wind 52 MAlexander, 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 12:00Z, 8.0 hours before the alert went out and 230 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.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2000-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2000-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1461 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

908 
WUUS53 KBIS 021957
SVRISN
NDC053-022100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
257 PM CDT (157 PM MDT) WED AUG 2 2000

THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCKENZIE COUNTY IN NORTHWESTERN NORTH DAKOTA

* UNTIL 400 PM CDT

* AT 257 PM CDT (155 PM MDT)...NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM 45 MILES SOUTH OF WILLISTON
  OR 19 MILES SOUTHEAST OF SIDNEY MONTANA... MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER...
  RURAL MCKENZIE COUNTY

THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM CDT (800 PM
MDT).

$$

THOMSON

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 1, 3:25 PM CDT, 23 hours 32 minutes earlier.

Area forecast discussion, Aug 1, 3:25 PM CDT, 23 hours 32 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
325 PM CDT TUE AUG 1 2000

FCST PROBLEM THIS PD WL BE PRECIP TIMING/CHANCES. SFC HIGH IN ERN ND
AND TROUGH IN LEE OF ROCKIES ESTABLISHED. MODELS BUILD UP H7 TEMP
CAP COINCIDENT WI TROUGH. TSTMS FROM SASK TO ERN MT TO FAR WRN ND
TODAY WERE E OF THESE FEATURES AND FOLLOWED H7 OMEGA FIELD.
CONCENSUS IN THE OFFICE IS OMEGA FIELD SHOWING MESOSCALE FEATURE
ASSOC WI TSTMS...DIV Q FIELD NOT INDICATING A SYNOPTIC FEATURE. AREA
IN VCNTY OF TROUGH/H7 CAP IS VIRTUALLY CLEAR ATTM.

SHEAR MAY BE ENOUGH FOR SVR WI H250 WLY 70KT JET AND SELY SFC WINDS...AND
RELATIVELY LOW DWPTS AT LOW LEVELS LENDING TO INVERTED V SOUNDING
FOR GOOD STRAIGHT LINE TSTM WINDS IN THE WEST TONIGHT. WL MENTION
TSTMS AND POSSIBLY SVR IN THE WEST. NO FINAL DECISION AS YET WHETHER
TO PUT TSMTS IN THE CENTRAL FOR TON. THINK AREA OF TSTMS WL
PROGRESS SEWD INTO SD...BUT CAN SEE ON SAT AND KGGW RADAR MORE
CONVECTION FROM SASK TO NERN MT. MAY AFFECT NWRN ND THIS EVE. H7
OMEGA FIELD SUGGESTS THIS WL NOT SUSTAIN ITSELF OVERNIGHT INTO CNTRL
ND...BUT DOES SUGGESTS LATE NIGHT/MORNING CONVECTION IN THE FAR
WEST...ESP THE NW.

CHC TSTMS REMAINS OVER CWA WED THROUGH FRI AS SFC TROUGH...CAPE
VALUES...MODEL PCPN AND OMEGA FIELDS FAVOR CONVECTION. MODELS BUILD
MODERATE H7 CAP INTO WRN ND THU NIGHT...AND INTO CNTRL ND ON
THURSDAY...SO TSTMS MAY NOT BE VERY NUMEROUS. WL PUT 30-40 PCNT POPS
IN CWA.

IN THE EXTENDED...TROUGH FINALLY MOVES ACROSS CWA ON FRI AND WL KEEP
PCPN CHCS IN THROUGH FRI. THINK PCPN WL BE IN ERN ND SAT...AND SFC
HIGH SHOULD KEEP ATMOS DRY SUN. MAY SEE LATE NIGHT PCPN SUN NIGHT
BUT TOO 6FAR OUT TO MENTION IN EXTENDED PERIOD.

.BIS...NONE.
VINING

In the hours before

Special weather statement, Aug 2, 2:10 PM CDT, 47 minutes before
NDZ001-009-017-022110-

 SPECIAL WEATHER STATEMENT...VALID UNTIL 410 PM CDT...
NATIONAL WEATHER SERVICE  WILLISTON NORTH DAKOTA
210 PM CDT WED AUG 2 2000

AT 210 PM CDT (110 MDT) SCATTERED SHOWERS AND THUNDERSTORMS HAD
ENTERED WESTERN DIVIDE AND NORTHWESTERN WILLIAMS COUNTIES. ADDITIONAL
SHOWERS AND THUNDERSTORMS DEVELOPING IN EASTERN MONTANA CAN BE
EXPECTED TO AFFECT NORTHWESTERN NORTH DAKOTA AS THEY MOVE EASTWARD
THIS AFTERNOON. WHILE MUCH OF THE ACTIVITY WILL REMAIN LIGHT...GUSTY
WINDS...PERIODS OF RAIN...FREQUENT LIGHTNING AND SMALL HAIL ARE
POSSIBLE WITH SOME OF THE STRONGER STORMS.

THOMSON

N

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 3:29 PM CDTSevere Thunderstorm WarningBISWilliams61 min
Aug 2, 4:24 PM CDTSevere Thunderstorm WarningBISRenville, Ward66 min
Aug 2, 4:46 PM CDTTornado WarningBISRenville34 min
Aug 2, 5:46 PM CDTSevere Thunderstorm WarningBISDunn59 min
Aug 2, 6:45 PM CDTSevere Thunderstorm WarningBISDunn, Mercer60 min
Aug 2, 6:55 PM CDTSevere Thunderstorm WarningBISMountrail50 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.