Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 96, NWS Bismarck, ND

July 19, 2001Sioux County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 19, 2001, 12:16 AM CDT for Sioux County, North Dakota. It was in force for 59 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 19, 2001, 12:16 AM CDT (05:16 UTC)
Expired: Jul 19, 2001, 1:15 AM CDT
In force: 59 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Sioux County, ND

The radar

The Bismarck radar (KBIS), 99 km from the middle of the area, began a volume at 05:22 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 18, 8:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 18, 8:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.3 hours before the alert went out and 102 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: 2623 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1396 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KBIS 190518
SVRBIS

NDC085-190615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1116 PM MDT WED JUL 18 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN AND CENTRAL SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 1215 AM MDT(115 AM CDT)

* AT 1116 PM MDT(1216 AM CDT)...NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM 45 MILES WEST OF SELFRIDGE...
  OR ABOUT 76 MILES EAST OF BOWMAN...MOVING EAST AT 40 MPH.

THIS STORM HAS A HISTORY OF PRODUCING WINDS OF 70 MPH. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 2 AM CDT...1 AM 
MDT.

LAT...LON 4603 10192 4585 10188 4592 10069 4620 10072
          4600 10164

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 18, 2:40 PM CDT, 9 hours 36 minutes earlier.

Area forecast discussion, Jul 18, 2:40 PM CDT, 9 hours 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
240 PM CDT WED JUL 18 2001

AREA RADARS AND SATELLITE INDICATE SCATTERED THUNDERSTORMS IN
EASTERN MONTANA MOVING NORTHEAST WITH AN UPPER LEVEL VORT MAX.
DEWPOINTS IN WESTERN ND ARE IN THE UPPER 50S AND LOWER 60S WITH
DEWPOINTS IN THE LOWER 70S IN CENTRAL ND. AN INVERTED TROUGH IS JUST
EAST OF A LINE FROM MINOT TO BISMARCK. THE INDICIES INDICATE
INSTABILITY ACROSS THE FORECAST AREA. CONSEQUENTLY EXPECT
THUNDERSTORMS ACROSS THE REGION AGAIN THIS EVENING...WITH THE
POTENTIAL FOR SEVERE THUNDERSTORMS GREATEST ALONG AND EAST OF THE
TROUGH. WITH THE UPPER LEVEL RIDGE EAST OF THE STATE AND AN UPPER
LEVEL TROUGH TO THUE WEST THROUGH THE WEEKEND...DON'T SEE AN END TO
THE CONVECTIVE POTENTIAL UNTIL MONDAY.  MOS SEEMS TO BE A LITTLE
WARM ON HIGHS AND WILL TREND TOWARD AVN.

.BIS...NONE.
TSW

In the hours before

Local storm report, Jul 18, 10:03 PM CDT, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1003 PM CDT WED JUL 18 2001

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

           ....COUNTY LOCATION....

0940 PM    ASHLEY                    ND   1 INCH HAIL

07/18/01   MCINTOSH                       REPORTED BY EMERGENCY

                                          MANAGEMENT.

0943 PM    9 SE ASHLEY               ND   FUNNEL CLOUD

07/18/01   MCINTOSH                       REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

0945 PM    2 S RHAME                 ND   .75 INCH HAIL

07/18/01   BOWMAN                         REPORTED BY PUBLIC.

0956 PM    6 S JAMESTOWN             ND   60 MPH TSTM GUST

07/18/01   STUTSMAN                       REPORTED BY HAM RADIO

                                          OPERATOR.

{

Local storm report, Jul 18, 10:07 PM CDT, 2 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1007 PM CDT WED JUL 18 2001

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

           ....COUNTY LOCATION....

1000 PM    3 W BOWMAN                ND   1.75 INCH HAIL

07/18/01   BOWMAN                         REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

Local storm report, Jul 18, 10:19 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1019 PM CDT WED JUL 18 2001

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

           ....COUNTY LOCATION....

1010 PM    ASHLEY                    ND   1.75 INCH HAIL

07/18/01   MCINTOSH                       REPORTED BY PUBLIC.

@RUKWBCeKDENWWUS30 KBIS 190319
LSRBIS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1019 PM CDT WED JUL 18 2001

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

1010 PM    ASHLEY                    ND   1.75 INCH HAIL
07/18/01   MCINTOSH                       REPORTED BY PUBLIC.

Special weather statement, Jul 18, 11:00 PM CDT, 1 hour 16 minutes before

NDZ001-002-009-010-017-031-190415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  BISMARCK ND
1100 PM CDT WED JUL 18 2001

...THE SEVERE THUNDERSTORM WATCH HAS ENDED...
THERE CONTINUES TO BEu A CHANCE OF THUNDERSTORMS TONIGHT...BUT ANY
THAT DEVELOP SHOULD NOT BE SEVERE.

TSW

Local storm report, Jul 19, 12:02 AM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE BISMARCK ND
1202 AM CDT THU JUL 19 2001

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

1104 PM    MONANGO                   ND   .75 INCH HAIL
07/18/01   DICKEY                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

1111 PM    HETTINGER ARPT            ND   72 MPH TSTM GUST
07/18/01   ADAMS                          REPORTED BY ASOS.

JP MARTIN

CORRECTION WAS TO DATE/TIME STAMP AT TOP FROM 1202 PM TO 1202 AM

Local storm report, Jul 19, 12:03 AM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1202 PM CDT THU JUL 19 2001

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

           ....COUNTY LOCATION....

1104 PM    MONANGO                   ND   .75 INCH HAIL

07/18/01   DICKEY                         REPORTED BY LAW

                                          ENFORCEMENT OFFICIAL.

1111 PM    HETTINGER ARPT            ND   72 MPH TSTM GUST

07/18/01   ADAMS                          REPORTED BY ASOS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:20 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	55 min
Jul 18, 8:16 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	59 min
Jul 18, 8:23 PM CDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	67 min
Jul 18, 8:25 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	60 min
Jul 18, 8:52 PM CDT	Tornado Warning	BIS	LaMoure, Stutsman	38 min
Jul 18, 8:56 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	64 min
Jul 18, 9:28 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	62 min
Jul 18, 9:30 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	45 min
Jul 18, 10:07 PM CDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	53 min
Jul 18, 10:30 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	60 min
Jul 18, 10:49 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	56 min
Jul 18, 10:59 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	31 min
Jul 18, 11:31 PM CDT	Severe Thunderstorm Warning	BIS	Adams	44 min
Jul 19, 1:39 AM CDT	Severe Thunderstorm Warning	BIS	Emmons	51 min
Jul 19, 3:35 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan	55 min
Jul 19, 3:58 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	62 min
Jul 19, 3:03 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	62 min
Jul 19, 4:05 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	60 min
Jul 19, 4:43 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail	62 min
Jul 19, 5:15 PM CDT	Tornado Warning	BIS	Burke, Mountrail	45 min
Jul 19, 5:31 PM CDT	Tornado Warning	BIS	Ward	29 min
Jul 19, 6:00 PM CDT	Tornado Warning	BIS	Ward	30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.