Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 218, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 19, 2018, 5:56 PM MDT for Grant County, Sioux County, North Dakota. It was in force for 64 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
- Jul 19, 2018, 5:56 PM MDT (23:56 UTC)
- Expired
- Jul 19, 2018, 7:00 PM MDT
- In force
- 64 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Grant County, ND, Sioux County, ND
The radar
The Bismarck radar (KBIS), 74 km from the middle of the area, began a volume at 23:57 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 12:00Z, 11.9 hours before the alert went out and 77 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.
- Mixed-layer CAPE
- 439 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 989 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 19, 5:42 PM MDT, 14 minutes earlier.
Area forecast discussion, Jul 19, 5:42 PM MDT, 14 minutes before
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</html>Hazardous weather outlook, Jul 19, 5:43 PM MDT, 13 minutes before
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</html>In the hours before
Special weather statement, Jul 19, 3:12 PM MDT, 2 hours 44 minutes before
Special Weather Statement
National Weather Service Bismarck ND
412 PM CDT THU JUL 19 2018
NDZ036-192145-
Kidder ND-
412 PM CDT THU JUL 19 2018
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN KIDDER COUNTY UNTIL
445 PM CDT...
At 412 PM CDT, a strong thunderstorm was located over Lake Isabel, or
10 miles southeast of Steele, moving south at 30 mph.
Penny size hail will be possible with this storm.
Locations impacted include...
Tappen, Dawson and Lake Isabel.
Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4690 9988 4690 9960 4664 9945 4663 9945
4663 9983
TIME...MOT...LOC 2112Z 355DEG 24KT 4679 9972
HOLLANSpecial weather statement, Jul 19, 3:28 PM MDT, 2 hours 28 minutes before
Special Weather Statement
National Weather Service Bismarck ND
428 PM CDT THU JUL 19 2018
NDZ011-021-192200-
Ward ND-McLean ND-
428 PM CDT THU JUL 19 2018
...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL WARD AND NORTH
CENTRAL MCLEAN COUNTIES UNTIL 500 PM CDT...
At 428 PM CDT, a strong thunderstorm was located 6 miles north of
Roseglen, or 25 miles northwest of Garrison, moving east at 30 mph.
Half inch hail will be possible with this storm.
Locations impacted include...
Douglas and Roseglen.
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 4786 10135 4760 10148 4778 10201 4785 10198
4785 10187 4794 10187
TIME...MOT...LOC 2128Z 289DEG 27KT 4784 10187
ABELINGLocal storm report, Jul 19, 4:08 PM MDT, 1 hour 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
508 PM CDT THU JUL 19 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0502 PM HAIL 1 N NAPOLEON 46.52N 99.77W
07/19/2018 M1.00 INCH LOGAN ND LAW ENFORCEMENT
ON HIGHWAY 3.
&&Special weather statement, Jul 19, 4:36 PM MDT, 1 hour 20 minutes before
Special Weather Statement
National Weather Service Bismarck ND
536 PM CDT THU JUL 19 2018
NDZ019-033-034-041-042-192315-
Grant ND-Hettinger ND-Stark ND-Mercer ND-Morton ND-
536 PM CDT THU JUL 19 2018
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
HETTINGER...NORTHWESTERN MORTON...EASTERN STARK...SOUTHWESTERN MERCER
AND NORTHWESTERN GRANT COUNTIES UNTIL 615 PM CDT/515 PM MDT/...
At 536 PM CDT/436 PM MDT/, strong thunderstorms were clustered along
a line extending from 8 miles north of Hebron to 14 miles north of
Mott. Movement was southeast at 20 mph.
Penny size hail will be possible with these storms.
Locations impacted include...
Glen Ullin, Hebron and Richardton.
LAT...LON 4653 10225 4652 10225 4653 10226 4660 10251
4701 10224 4701 10214 4714 10215 4717 10213
4710 10176 4698 10176 4672 10172 4644 10195
TIME...MOT...LOC 2236Z 299DEG 19KT 4703 10204 4659 10233
HOLLANSpecial weather statement, Jul 19, 5:12 PM MDT, 44 minutes before
Special Weather Statement National Weather Service Bismarck ND 612 PM CDT THU JUL 19 2018 NDZ025-200000- Foster ND- 612 PM CDT THU JUL 19 2018 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL FOSTER COUNTY UNTIL 700 PM CDT... At 611 PM CDT, a strong thunderstorm was located 7 miles west of Grace City, or 11 miles northeast of Carrington, moving south at 20 mph. Nickel size hail will be possible with this storm. Locations impacted include... Bordulac and Grace City. Very heavy rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4733 9903 4759 9904 4759 9878 4733 9862 TIME...MOT...LOC 2311Z 348DEG 16KT 4758 9897 HOLLAN
Special weather statement, Jul 19, 5:18 PM MDT, 38 minutes before
Special Weather Statement
National Weather Service Bismarck ND
618 PM CDT THU JUL 19 2018
NDZ019-020-034-041-042-044-200000-
Grant ND-Hettinger ND-Oliver ND-Mercer ND-Adams ND-Morton ND-
618 PM CDT THU JUL 19 2018
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF
HETTINGER...MORTON...OLIVER...MERCER...GRANT AND ADAMS COUNTIES
UNTIL 700 PM CDT/600 PM MDT/...
At 617 PM CDT/517 PM MDT/, strong thunderstorms were clustered along
a line extending from 11 miles northeast of Glen Ullin to 8 miles
southwest of Almont to 5 miles south of Regent. Movement was
southeast at 30 mph.
Nickel size hail and wind gusts to 40 mph will be possible with these
storms.
Locations impacted include...
Glen Ullin, Mott, Elgin, New Salem, Hebron, Carson, Flasher, New
Leipzig, Regent, Almont, Heart Butte Dam, Fish Creek Dam, Judson,
Burt, Lark, Raleigh, Leith, Heil, Bentley and Sweet Briar Lake.
Very heavy rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4707 10122 4637 10104 4605 10236 4644 10271
4655 10205 4706 10204
TIME...MOT...LOC 2317Z 302DEG 25KT 4695 10171 4661 10157 4634 10255
HOLLANThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 12:09 AM MDT | Areal Flood Advisory | BIS | Dickey | 10 hr |
| Jul 19, 12:50 PM MDT | Special Weather Statement | BIS | Wells | 25 min |
| Jul 19, 1:26 PM MDT | Areal Flood Advisory | BIS | Dickey, LaMoure, Stutsman | 8 hr |
| Jul 19, 2:12 PM MDT | Special Weather Statement | BIS | Rolette | 48 min |
| Jul 19, 2:24 PM MDT | Special Weather Statement | BIS | Mountrail | 51 min |
| Jul 19, 3:12 PM MDT | Special Weather Statement | BIS | Kidder | 33 min |
| Jul 19, 3:23 PM MDT | Severe Thunderstorm Warning | BIS | Kidder, Logan | 67 min |
| Jul 19, 3:28 PM MDT | Special Weather Statement | BIS | McLean | 32 min |
| Jul 19, 4:18 PM MDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 28 min |
| Jul 19, 4:36 PM MDT | Special Weather Statement | BIS | Stark | 39 min |
| Jul 19, 5:12 PM MDT | Special Weather Statement | BIS | Foster | 48 min |
| Jul 19, 5:18 PM MDT | Special Weather Statement | BIS | Grant, Hettinger, Morton | 42 min |
| Jul 19, 5:35 PM MDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 45 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2018Every severe thunderstorm warning in 2018
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.