Alert archive / North Dakota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 31, NWS Bismarck, ND

June 29, 2019Williams County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 29, 2019, 3:53 AM CDT for Williams County, North Dakota. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 29, 2019, 3:53 AM CDT (08:53 UTC)
Expired: Jun 29, 2019, 4:45 AM CDT
In force: 52 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Williams County, ND

The radar

The Minot AFB radar (KMBX), 193 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 28, 10:48 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 8.9 hours before the alert went out and 231 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: 485 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 1541 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.4

Open this sounding in Storm Lab

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 Jun 29, 12:46 AM CDT, 3 hours 7 minutes earlier.

Area forecast discussion, Jun 29, 12:46 AM CDT, 3 hours 7 minutes before

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Hazardous weather outlook, Jun 29, 12:48 AM CDT, 3 hours 5 minutes before

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In the hours before

Local storm report, Jun 29, 12:12 AM CDT, 3 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1212 AM CDT SAT JUN 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1211 AM     HEAVY RAIN       2 S ALMONT              46.70N 101.50W
06/29/2019  M1.48 INCH       MORTON             ND   PUBLIC

            HEAVY RAINFALL FRIDAY MORNING OF 1.48
            INCHES.

&&

KS

Special weather statement, Jun 29, 1:58 AM CDT, 1 hour 55 minutes before

Special Weather Statement
National Weather Service Bismarck ND
158 AM CDT Sat Jun 29 2019

NDZ001-009-290745-
Divide ND-Williams ND-
158 AM CDT Sat Jun 29 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN WILLIAMS
AND DIVIDE COUNTIES UNTIL 245 AM CDT...

At 157 AM CDT, strong thunderstorms were developing along a line
extending from 7 miles north of Westby to 7 miles north of Bonetrail.
Movement was east at 40 mph.

Penny size hail and wind gusts to 50 mph will be possible with these
storms.

Locations impacted include...
Crosby, Grenora, Alamo, Fortuna, Alkabo, Writing Rock State
Historical Site, Bonetrail, Ambrose, Zahl, Appam, Hanks, Corinth and
Blacktail Lake.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 600 AM CDT for
northwestern North Dakota.

LAT...LON 4900 10326 4857 10325 4833 10404 4900 10405
TIME...MOT...LOC 0657Z 247DEG 34KT 4897 10405 4853 10380

HOLLAN

Special weather statement, Jun 29, 3:00 AM CDT, 53 minutes before

Special Weather Statement
National Weather Service Bismarck ND
300 AM CDT Sat Jun 29 2019

NDZ001-002-009-010-290900-
Mountrail ND-Divide ND-Williams ND-Burke ND-
300 AM CDT Sat Jun 29 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT BURKE...WILLIAMS...
NORTHWESTERN MOUNTRAIL AND EASTERN DIVIDE COUNTIES UNTIL 400 AM
CDT...

At 300 AM CDT, strong thunderstorms were clustered along a line
extending from near Columbus to near Williston. Movement was
northeast at 35 mph.

Penny size hail and wind gusts to 40 mph will be possible with these
storms.

Locations impacted include...
Williston, Stanley, Crosby, Bowbells, Tioga, Ray, Powers Lake,
Lignite, Columbus, Portal, Noonan, Wildrose, Epping, Ross,
Battleview, Flaxton, Alamo, Lostwood, Trenton and White Earth.

A Severe Thunderstorm Watch remains in effect until 600 AM CDT for
northwestern North Dakota.

LAT...LON 4900 10202 4881 10202 4881 10215 4872 10215
      4872 10223 4817 10229 4812 10281 4813 10321
      4806 10324 4801 10349 4804 10358 4808 10355
      4811 10361 4813 10359 4810 10373 4806 10371
      4804 10374 4808 10387 4900 10352
TIME...MOT...LOC 0800Z 227DEG 32KT 4885 10275 4821 10366

HOLLAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 1:58 AM CDT	Special Weather Statement	BIS	Divide	47 min
Jun 29, 3:00 AM CDT	Special Weather Statement	BIS	Burke, Divide, Mountrail, Williams	60 min
Jun 29, 3:10 AM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	36 min
Jun 29, 4:08 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail	52 min
Jun 29, 4:40 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail	65 min
Jun 29, 5:11 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Ward	49 min
Jun 29, 5:29 AM CDT	Severe Thunderstorm Warning	BIS	Renville, Ward	61 min
Jun 29, 6:09 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville, Ward	66 min
Jun 29, 6:16 AM CDT	Areal Flood Advisory	BIS	Mountrail	3 hr
Jun 29, 6:50 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Pierce, Rolette	55 min
Jun 29, 7:01 AM CDT	Areal Flood Advisory	BIS	Mountrail, Ward	3 hr
Jun 29, 7:43 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	32 min
Jun 29, 8:35 AM CDT	Special Weather Statement	BIS	Wells	40 min
Jun 29, 8:43 AM CDT	Special Weather Statement	BIS	Bottineau	32 min
Jun 29, 9:11 AM CDT	Special Weather Statement	BIS	Foster, Wells	34 min
Jun 29, 9:47 AM CDT	Special Weather Statement	BIS	Foster, Stutsman	43 min
Jun 29, 10:01 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau	44 min
Jun 29, 10:16 AM CDT	High Wind Warning	BIS	Pierce, Rolette	104 min
Jun 29, 10:29 AM CDT	Special Weather Statement	BIS	Stutsman	46 min
Jun 29, 11:06 AM CDT	Special Weather Statement	BIS	Rolette	39 min
Jun 29, 2:27 PM CDT	Special Weather Statement	BIS	Divide	33 min
Jun 29, 2:53 PM CDT	Severe Thunderstorm Warning	BIS	Divide	37 min
Jun 29, 3:26 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide	34 min
Jun 29, 6:11 PM CDT	Severe Thunderstorm Warning	BIS	Stark	49 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2019 Every severe thunderstorm warning in 2019

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.