Alert archive / North Dakota / Special Weather Statements in 2017

Special Weather Statement, NWS Bismarck, ND

July 24, 2017Ward County, North Dakota

NWS Bismarck, ND issued this special weather statement at Jul 24, 2017, 7:40 PM CDT for Ward County, North Dakota. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 24, 2017, 7:40 PM CDT (00:40 UTC)
Expired: Jul 24, 2017, 8:30 PM CDT
In force: 50 min
Issued by: NWS Bismarck, ND

County Ward County, ND

The radar

The Minot AFB radar (KMBX), 63 km from the middle of the area, began a volume at 00:40 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.7 hours before the alert went out and 155 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: 1098 J/kg
Mixed-layer CIN: -255 J/kg
Mixed-layer LCL: 1831 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 24, 6:08 PM CDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jul 24, 6:08 PM CDT, 1 hour 32 minutes before

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Hazardous weather outlook, Jul 24, 1:58 PM CDT, 5 hours 42 minutes before

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In the hours before

Special weather statement, Jul 24, 6:23 PM CDT, 1 hour 17 minutes before

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Special weather statement, Jul 24, 6:33 PM CDT, 1 hour 7 minutes before

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Special weather statement, Jul 24, 7:05 PM CDT, 35 minutes before

Special Weather Statement
National Weather Service Bismarck ND
605 PM MDT MON JUL 24 2017

NDZ043-250045-
Bowman ND-
605 PM MDT MON JUL 24 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN BOWMAN COUNTY UNTIL
645 PM MDT...

At 605 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles north of Ludlow, or 12 miles south of Bowman, moving east at 25
mph.

Penny size hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Scranton, Gascoyne, Bowman Haley Dam and Buffalo Springs.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek shelter
inside a building or vehicle.

&&

LAT...LON 4595 10345 4613 10343 4625 10300 4595 10300
TIME...MOT...LOC 0005Z 267DEG 21KT 4600 10334

ABELING

Special weather statement, Jul 24, 7:09 PM CDT, 31 minutes before

Special Weather Statement
National Weather Service Bismarck ND
709 PM CDT MON JUL 24 2017

NDZ010-011-021-250045-
Mountrail ND-Ward ND-McLean ND-
709 PM CDT MON JUL 24 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL WARD...NORTH
CENTRAL MCLEAN AND SOUTHEASTERN MOUNTRAIL COUNTIES UNTIL 745 PM
CDT...

At 709 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Roseglen, or 27 miles northwest of Garrison,
moving northeast at 40 mph.

Penny size hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Makoti and Ryder.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek shelter
inside a building or vehicle.

&&

LAT...LON 4774 10197 4785 10208 4812 10168 4789 10142
TIME...MOT...LOC 0009Z 235DEG 35KT 4785 10192

ABELING

Special weather statement, Jul 24, 7:40 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Bismarck ND
740 PM CDT MON JUL 24 2017

NDZ011-250130-
Ward ND-
740 PM CDT MON JUL 24 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN WARD COUNTY UNTIL
830 PM CDT...

At 739 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles west of Rice Lake, or 22 miles southwest of Minot, moving
northeast at 30 mph.

Penny size hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Southern Minot, Burlington, Ryder and Rice Lake.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek shelter
inside a building or vehicle.

&&

LAT...LON 4789 10165 4801 10181 4831 10140 4811 10116
TIME...MOT...LOC 0039Z 229DEG 27KT 4800 10165

ABELING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 7:05 PM CDT	Special Weather Statement	BIS	Bowman	40 min
Jul 24, 7:09 PM CDT	Special Weather Statement	BIS	Ward	36 min
Jul 24, 7:43 PM CDT	Special Weather Statement	BIS	Bowman	17 min
Jul 24, 7:44 PM CDT	Special Weather Statement	BIS	Bowman	31 min
Jul 24, 8:27 PM CDT	Special Weather Statement	BIS	Hettinger	33 min
Jul 24, 8:49 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	46 min
Jul 24, 10:00 PM CDT	Special Weather Statement	BIS	McLean	45 min
Jul 24, 10:28 PM CDT	Special Weather Statement	BIS	Ward	32 min
Jul 24, 10:30 PM CDT	Special Weather Statement	BIS	Ward	30 min
Jul 24, 10:39 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	52 min
Jul 24, 11:19 PM CDT	Special Weather Statement	BIS	Bottineau	26 min
Jul 24, 11:41 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	31 min
Jul 24, 11:47 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	58 min
Jul 25, 6:43 AM CDT	Special Weather Statement	BIS	Sioux	47 min
Jul 25, 7:29 AM CDT	Special Weather Statement	BIS	Emmons	46 min

Nearby

Special Weather Statements in North Dakota, 2017 Every special weather statement in 2017

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.