Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 150, NWS Bismarck, ND

July 21, 2001Foster County, Stutsman County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 21, 2001, 1:55 AM CDT for Foster County, Stutsman County, North Dakota. It was in force for 50 min. 3 reports 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: Jul 21, 2001, 1:55 AM CDT (06:55 UTC)
Expired: Jul 21, 2001, 2:45 AM CDT
In force: 50 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Foster County, ND, Stutsman County, ND

The radar

The Bismarck radar (KBIS), 137 km from the middle of the area, began a volume at 06:56 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
Jul 21, 2:45 AM CDT	Thunderstorm Wind 57 E	Mc Henry, ND	Cooperative observer reported large tree's down and dime size hail with the storm.
Jul 21, 2:45 AM CDT	Thunderstorm Wind 52 E	(Jms)Jamestown Muni, ND	At least two camper trailers were overturned at a park.
Jul 21, 2:53 AM CDT	Thunderstorm Wind 57 M	(Jms)Jamestown Muni, 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
Jul 21, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.9 hours before the alert went out and 133 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2408 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1484 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 10.6

Open this sounding in Storm Lab

The text

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

631 
WUUS53 KBIS 210655
SVRBIS
NDC031-093-210745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
155 AM CDT SAT JUL 21 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FOSTER COUNTY IN SOUTHEAST NORTH DAKOTA
  STUTSMAN COUNTY IN SOUTHEAST NORTH DAKOTA
  THIS INCLUDES THE CITY OF JAMESTOWN

* UNTIL 245 AM CDT

* AT 155 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 74 MILES NORTHWEST OF 
  JAMESTOWN TO 39 MILES WEST OF JAMESTOWN...MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CARRINGTON AT 215 AM CDT
  JAMESTOWN AT 235 AM CDT

THE STORM IS BECOMING STRONGER AND WINDS IN EXCESS OF 60 MPH CAN BE 
EXPECTED WITH THIS STORM. TAKE SHELTER IN AN INTERIOR ROOM OF YOUR 
HOME AND STAY AWAY FROM WINDOWS. 

LAT...LON 4759 9928 4734 9924 4732 9949 4667 9942
          4666 9846 4759 9853

$$
NOAH

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 Jul 20, 3:15 PM CDT, 10 hours 40 minutes earlier.

Area forecast discussion, Jul 20, 3:15 PM CDT, 10 hours 40 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
315 PM CDT FRI JUL 20 2001

MAIN CONCERN WL BE SEVERE WX OVER THE NEXT 24 TO 36 HOURS.
MODELS IN FAIRLY GOOD AGREEMENT EJECTING SEVERAL SHORT WAVE
SYSTEM THRU THE REGION TONIGHT THRU SATURDAY NIGHT.

THE FIRST OF THE SHORT WAVES FORECAST TO REACH WESTERN ND
LATER THIS AFTERNOON THE MOVE EAST...SOUTHEAST REACHING
NORTHEASTERN SD LATE TONIGHT. THE SECOND SHORT WAVE FORECAST
TO REACH WESTERN ND EARLY SATURDAY AND MOVE ACROSS THE SOUTHERN
CWA DURING THE DAY AND THE THIRD REACHES WESTERN ND SATURDAY
NIGHT AND MOVES ACROSS THE REGION OVERNIGHT REACHING THE EASTERN
AREAS OF THE STATE EARLY SUNDAY MORNING.

WITH A VERY UNSTABLE ATMOSPHERE THE SHORT WAVE SYSTEMS MOVING
THRU WILL ADD FUEL TO TSRA POTENTIAL THRU SATURDAY NIGHT. A SURFACE
BOUNDRY WILL ADD LIFT FOR THE CONVECTION.

DRIER AIR AND SUBSIDENCE FORECAST TO ADVECT OVER THE WRN CWA SUNDAY
AFTERNOON INTO MONDAY. THIS WILL BRING COOLER AND LESS HUMID AIR
BACK INTO THE AREA.

.BIS...NONE.
RGT

In the hours before

Local storm report, Jul 20, 9:51 PM CDT, 4 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

951 PM CDT FRI JUL 20 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...

           ....COUNTY LOCATION....

0911 PM    (ISN)SLOULIN FLD WILLISTO ND   .88 INCH HAIL

07/20/01   WILLIAMS

Local storm report, Jul 20, 10:14 PM CDT, 3 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1014 PM CDT FRI JUL 20 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...

           ....COUNTY LOCATION....

0958 PM    4 N BEACH                 ND   60 MPH TSTM GUST

07/20/01   GOLDEN VALLEY                  REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

1005 PM    WATFORD CITY              ND   58 MPH TSTM GUST

07/20/01   MCKENZIE                       REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

@RUKWBCeKDENWWUS30 KBIS 210315
LSRBIS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1014 PM CDT FRI JUL 20 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0958 PM    4 N BEACH                 ND   60 MPH TSTM GUST
07/20/01   GOLDEN VALLEY                  REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

1005 PM    WATFORD CITY              ND   58 MPH TSTM GUST
07/20/01   MCKENZIE                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
TURNER

Local storm report, Jul 20, 11:06 PM CDT, 2 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1106 PM CDT FRI JUL 20 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...

           ....COUNTY LOCATION....

1017 PM    NEW TOWN                  ND   60 MPH TSTM GUST

07/20/01   MOUNTRAIL                      REPORTED BY MEDIA.

1044 PM    GRASSY BUTTE              ND   .88 INCH HAIL

07/20/01   MCKENZIE                       REPORTED BY COOPERATIVE

                                          OBSERVER.

1045 PM    2 NW NEW TOWN             ND   FUNNEL CLOUD

07/20/01   MOUNTRAIL                      REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

                                          TWO FUNNELS

                                          REPORTED...NO TOUCHDOWN.

1054 PM    27 NE BELFIELD            ND   70 MPH TSTM GUST

07/20/01   STARK                          REPORTED BY EMERGENCY

                                          MANAGEMENT. TREES

                                          UPROOTED. STORN OVER

                                          BILLINGS COUNTY.

Local storm report, Jul 20, 11:55 PM CDT, 2 hours before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1155 PM CDT FRI JUL 20 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...

           ....COUNTY LOCATION....

1110 PM    BELDEN                    ND   60 MPH TSTM GUST

07/20/01   MOUNTRAIL                      REPORTED BY PUBLIC.

1125 PM    KILLDEER                  ND   .75 INCH HAIL

07/20/01   DUNN                           REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

1134 PM    (MIB)MINOT AFB            ND   62 MPH TSTM GUST

07/20/01   WARD

Local storm report, Jul 21, 1:18 AM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

118 AM CDT SAT JUL 21 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...

           ....COUNTY LOCATION....

1201 AM    1 NE DICKINSON            ND   .75 INCH HAIL

07/21/01   STARK                          REPORTED BY HAM RADIO

                                          OPERATOR.

1255 AM    4 S BUCYRUS               ND   2.5 INCH HAIL

07/21/01   ADAMS                          REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

0106 AM    (BIS)BISMARCK MUNI ARPT   ND   56 MPH TSTM GUST

07/21/01   BURLEIGH

0112 AM    ELGIN                     ND   60 MPH TSTM GUST

07/21/01   GRANT

0112 AM    16 N ELGIN                ND   .75 INCH HAIL

07/21/01   GRANT                          AT LAKE TSCHIDA. .

                                          REPORTED BY STORM

                                          SPOTTER.

Local storm report, Jul 21, 1:53 AM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILLISTON ND
153 AM CDT SAT JUL 21 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0855 PM    CARTWRIGHT                ND   60 MPH TSTM GUST
07/20/01   MCKENZIE                       REPORTED BY HAM RADIO
                                          OPERATOR.

0905 PM    WILLISTON CITY LANDFILL   ND   .75 INCH HAIL
07/20/01   WILLIAMS                       REPORTED BY HAM RADIO
                                          OPERATOR.

0910 PM    WILLISTON                 ND   .88 INCH HAIL
07/20/01   WILLIAMS                       REPORTED BY HAM RADIO
                                          OPERATOR AND OFF DUTY
                                          NWS EMPLOYEE.

0912 PM    NWS OFFICE WILLISTON      ND   68 MPH TSTM GUST
07/20/01   WILLIAMS

0930 PM    20 E WILLISTON            ND   .75 INCH HAIL
07/20/01   WILLIAMS                       REPORTED BY PUBLIC.

THOMSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 7:47 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	58 min
Jul 20, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	54 min
Jul 20, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	Divide	54 min
Jul 20, 9:36 PM CDT	Tornado Warning	BIS	Billings, Golden Valley	54 min
Jul 20, 9:43 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, Williams	62 min
Jul 20, 9:43 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	62 min
Jul 20, 10:24 PM CDT	Severe Thunderstorm Warning	BIS	Ward	36 min
Jul 20, 10:32 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	58 min
Jul 20, 10:45 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Ward	30 min
Jul 20, 10:45 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	60 min
Jul 20, 11:16 PM CDT	Severe Thunderstorm Warning	BIS	Renville, Ward	59 min
Jul 20, 11:16 PM CDT	Severe Thunderstorm Warning	BIS	McLean	59 min
Jul 20, 11:26 PM CDT	Severe Thunderstorm Warning	BIS	Stark	64 min
Jul 20, 11:39 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Oliver	66 min
Jul 21, 12:01 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean	59 min
Jul 21, 12:26 AM CDT	Severe Thunderstorm Warning	BIS	Morton	64 min
Jul 21, 12:28 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Sheridan	62 min
Jul 21, 12:39 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	36 min
Jul 21, 12:49 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	56 min
Jul 21, 1:04 AM CDT	Severe Thunderstorm Warning	BIS	Grant	56 min
Jul 21, 1:24 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder	66 min
Jul 21, 1:25 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	35 min
Jul 21, 1:40 AM CDT	Severe Thunderstorm Warning	BIS	Wells	50 min
Jul 21, 2:06 AM CDT	Severe Thunderstorm Warning	BIS	Adams	39 min
Jul 21, 2:44 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	31 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2001 Every severe thunderstorm warning in 2001

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.