Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 163, NWS Bismarck, ND

July 22, 2001Burleigh County, McLean County, Oliver County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 22, 2001, 3:57 AM CDT for Burleigh County, McLean County, Oliver County, North Dakota. It was in force for 63 min. 6 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: Jul 22, 2001, 3:57 AM CDT (08:57 UTC)
Expired: Jul 22, 2001, 5:00 AM CDT
In force: 63 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Burleigh County, ND, McLean County, ND, Oliver County, ND

The radar

The Bismarck radar (KBIS), 56 km from the middle of the area, began a volume at 08:56 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 22, 4:00 AM CDT	Thunderstorm Wind 57 E	Wilton, ND	Cooperative observer reported huge tree's and crop damage.
Jul 22, 4:27 AM CDT	Thunderstorm Wind 61 E	Wilton, ND
Jul 22, 4:27 AM CDT	Thunderstorm Wind 61 E	Wilton, ND
Jul 22, 4:30 AM CDT	Thunderstorm Wind 57 E	Hensler, ND	Cooperative observer reported tree's damage and dumpster flipped over.
Jul 22, 4:32 AM CDT	Thunderstorm Wind 61 M	(Bis)Bismarck Muni A, ND
Jul 22, 5:00 AM CDT	Thunderstorm Wind 61 E	Driscoll, ND	Reports of several tree's down and numerous branches broken off.

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 22, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 9.0 hours before the alert went out and 58 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: 2155 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 22, 3:00 AM CDT, 57 minutes earlier.

Area forecast discussion, Jul 22, 3:00 AM CDT, 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
300 AM CDT SUN JUL 22 2001

BOW TYPE ECHO WITH SEVERE THUNDERSTORMS IS MOVING INTO CENTRAL
ND...PUSHED ALONG BY BY A COLD POOL THAT IS BEST SHOWN ON THE ETA
MDL. WIND DAMAGE IS MAIN CONCERN WITH THESE STORMS. OTHERWISE A
SOUTHWEST FLOW CONTINUES OVER THE REGION TODAY WITH ANOTHER
SHORTWAVE MOVING INTO THE NORTHWEST LATE THIS AFTERNOON.
THIS FEATURE WILL TRACK ACROSS THE NORTH EARLY TONIGHT...AND SEVERE
WX IS AGAIN POSSIBLE. THEN THE FLOW BECOMES MORE ZONAL MONDAY WITH
ANOTHER IMPULSE  CAUSING A CHANCE OF CONVECTIVE PRECIP BY AFTERNOON.
THEN THE MAIN WESTERN TROUGH SHEARS OFF AND THE NORTHERN BRANCH ENTERS
ND TUESDAY MORNING. WILL UPDATE THE EXTENDED FORECAST FOR CENTRAL ND
TO REFLECT THIS CHANCE OF PRECIP ON TUESDAY.

.BIS...NONE.
LM

In the hours before

Local storm report, Jul 21, 10:23 PM CDT, 5 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE BISMARCK ND

1023 PM CDT SAT JUL 21 2001

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

           ....COUNTY LOCATION....

1040 PM    TROTTERS                  ND   .88 INCH HAIL

07/20/01   GOLDEN VALLEY                  REPORTED BY COOPERATIVE

                                          OBSERVER.

1200 AM    SAWYER                    ND   WIND DAMAGE

07/21/01   WARD                           REPORTED BY COOPERATIVE

                                          OBSERVER. LARGE TREES

                                          DOWN.

0100 AM    SELZ                      ND   60 MPH TSTM GUST

07/21/01   PIERCE                         REPORTED BY PUBLIC.

                                          BRANCHES DOWN.

Local storm report, Jul 22, 2:17 AM CDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILLISTON ND
217 AM CDT SUN JUL 22 2001

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

0900 PM    FORT UNION TRADING POST   ND   WIND AND HAIL DAMAGE.
07/20/01   NATIONAL HISTORIC SITE         SHINGLES TORN OFF
           WILLIAMS                       VISITOR CENTER ROOF.
                                          TEEPEES HELD DOWN BY
                                          4 FOOT IRON STAKES PULLED
                                          UP AND SHREDDED BY HAIL.

CJT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 11:53 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	67 min
Jul 22, 12:18 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	57 min
Jul 22, 1:01 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	59 min
Jul 22, 2:01 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	59 min
Jul 22, 2:24 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail	51 min
Jul 22, 2:30 AM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope	60 min
Jul 22, 2:38 AM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	67 min
Jul 22, 2:50 AM CDT	Severe Thunderstorm Warning	BIS	Ward	40 min
Jul 22, 3:16 AM CDT	Severe Thunderstorm Warning	BIS	McLean	44 min
Jul 22, 3:38 AM CDT	Severe Thunderstorm Warning	BIS	Grant	67 min
Jul 22, 3:57 AM CDT	Severe Thunderstorm Warning	BIS	Morton	63 min
Jul 22, 4:37 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	53 min
Jul 22, 4:37 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh	53 min
Jul 22, 5:01 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Logan	59 min
Jul 22, 5:42 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	63 min
Jul 22, 6:39 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	51 min
Jul 22, 6:39 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure	51 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.