Alert archive / North Dakota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 108, NWS Bismarck, ND

June 30, 2020Emmons County, Morton County, Sioux County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 30, 2020, 8:06 AM CDT for Emmons County, Morton County, Sioux County, North Dakota. It was in force for 39 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 30, 2020, 8:06 AM CDT (13:06 UTC)
Expired: Jun 30, 2020, 8:45 AM CDT
In force: 39 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Emmons County, ND, Morton County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 45 km from the middle of the area, began a volume at 13:08 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, 1.1 hours before the alert went out and 46 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: 9 J/kg
Mixed-layer CIN: -647 J/kg
Mixed-layer LCL: 1381 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 307 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 30, 6:46 AM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, Jun 30, 6:46 AM CDT, 1 hour 20 minutes before

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Hazardous weather outlook, Jun 30, 6:47 AM CDT, 1 hour 19 minutes before

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In the hours before

Special weather statement, Jun 30, 5:45 AM CDT, 2 hours 21 minutes before

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Local storm report, Jun 30, 6:42 AM CDT, 1 hour 24 minutes before

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Special weather statement, Jun 30, 7:31 AM CDT, 35 minutes before

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Special weather statement, Jun 30, 7:33 AM CDT, 33 minutes before

Special Weather Statement
National Weather Service Bismarck ND
733 AM CDT Tue Jun 30 2020

NDZ034-042-045-301330-
Grant ND-Sioux ND-Morton ND-
733 AM CDT Tue Jun 30 2020

...SIGNIFICANT WEATHER ADVISORY FOR SIOUX...SOUTHEASTERN MORTON AND
SOUTHEASTERN GRANT COUNTIES UNTIL 830 AM CDT/730 AM MDT/...

At 733 AM CDT/633 AM MDT/, strong thunderstorms were located along a
line extending from 14 miles southwest of Flasher to 5 miles south of
Shields to near Selfridge. Movement was northeast at 25 mph.

Penny size hail and wind gusts to 55 mph will be possible with these
storms.

Locations impacted include...
Fort Yates, Selfridge, Flasher, Solen, Cannon Ball, Shields, Prairie
Knights Resort, Raleigh, St. Gertrude, Porcupine and Breien.

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 4604 10140 4623 10154 4650 10130 4652 10094
      4643 10059 4634 10055 4628 10058 4623 10056
      4613 10063 4612 10062 4606 10061 4601 10056
      4599 10052 4595 10051 4594 10052 4594 10116
TIME...MOT...LOC 1233Z 225DEG 22KT 4626 10136 4615 10113 4599 10095

HOLLAN

Local storm report, Jun 30, 7:54 AM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
754 AM CDT TUE JUN 30 2020

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

1054 PM     HEAVY RAIN       3 E KILLDEER            47.36N 102.70W
06/29/2020  M2.50 INCH       DUNN               ND   PUBLIC

&&

Local storm report, Jun 30, 8:00 AM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
800 AM CDT TUE JUN 30 2020

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

0745 AM     HEAVY RAIN       8 E LEFOR               46.70N 102.40W
06/30/2020  E2.78 INCH       STARK              ND   TRAINED SPOTTER

            24 HOUR RAINFALL TOTAL.

&&

KING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	53 min
Jun 29, 7:10 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	65 min
Jun 29, 7:12 PM CDT	Severe Thunderstorm Warning	BIS	Billings	48 min
Jun 29, 7:20 PM CDT	Tornado Warning	BIS	Dunn, McKenzie	25 min
Jun 29, 7:21 PM CDT	Special Weather Statement	BIS	Adams	24 min
Jun 29, 7:51 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	39 min
Jun 29, 8:07 PM CDT	Special Weather Statement	BIS	Adams, Hettinger, Stark	53 min
Jun 29, 8:15 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	30 min
Jun 29, 8:16 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mountrail	59 min
Jun 29, 8:22 PM CDT	Tornado Warning	BIS	McKenzie, Mountrail	23 min
Jun 29, 8:29 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	61 min
Jun 29, 8:30 PM CDT	Severe Thunderstorm Warning	BIS	Stark	39 min
Jun 29, 8:44 PM CDT	Tornado Warning	BIS	Mountrail	31 min
Jun 29, 8:45 PM CDT	Tornado Warning	BIS	Dunn, Stark	30 min
Jun 29, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Hettinger, Stark	54 min
Jun 29, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Ward	60 min
Jun 29, 9:37 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	38 min
Jun 29, 10:16 PM CDT	Special Weather Statement	BIS	Adams, Hettinger	44 min
Jun 29, 10:17 PM CDT	Special Weather Statement	BIS	McLean, Ward	43 min
Jun 29, 10:31 PM CDT	Special Weather Statement	BIS	Oliver	29 min
Jun 29, 11:01 PM CDT	Special Weather Statement	BIS	McHenry	44 min
Jun 29, 11:04 PM CDT	Special Weather Statement	BIS	Grant	41 min
Jun 29, 11:45 PM CDT	Special Weather Statement	BIS	Bottineau, McHenry, Pierce	45 min
Jun 30, 12:00 AM CDT	Special Weather Statement	BIS	Bottineau	45 min
Jun 30, 12:01 AM CDT	Special Weather Statement	BIS	Grant	29 min
Jun 30, 1:05 AM CDT	Special Weather Statement	BIS	Burleigh	40 min
Jun 30, 1:50 AM CDT	Special Weather Statement	BIS	Emmons	40 min
Jun 30, 3:00 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	45 min
Jun 30, 5:45 AM CDT	Special Weather Statement	BIS	Grant	45 min
Jun 30, 5:55 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	65 min
Jun 30, 7:31 AM CDT	Special Weather Statement	BIS	Morton	44 min
Jun 30, 7:33 AM CDT	Special Weather Statement	BIS	Sioux	57 min
Jun 30, 8:14 AM CDT	Special Weather Statement	BIS	Oliver	46 min
Jun 30, 8:34 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	56 min
Jun 30, 9:17 AM CDT	Special Weather Statement	BIS	Sheridan	43 min
Jun 30, 9:30 AM CDT	Severe Thunderstorm Warning	BIS	McLean	45 min
Jun 30, 9:43 AM CDT	Special Weather Statement	BIS	Burleigh, Emmons, Kidder	47 min
Jun 30, 10:06 AM CDT	Special Weather Statement	BIS	McHenry	39 min
Jun 30, 10:44 AM CDT	Special Weather Statement	BIS	McHenry	46 min
Jun 30, 11:13 AM CDT	Special Weather Statement	BIS	Oliver	47 min
Jun 30, 11:21 AM CDT	Special Weather Statement	BIS	Bottineau	39 min
Jun 30, 12:00 PM CDT	Special Weather Statement	BIS	Oliver	45 min
Jun 30, 12:09 PM CDT	Special Weather Statement	BIS	Burleigh, Kidder	51 min
Jun 30, 12:32 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	43 min
Jun 30, 1:00 PM CDT	Severe Thunderstorm Warning	BIS	Wells	45 min
Jun 30, 1:37 PM CDT	Special Weather Statement	BIS	Wells	38 min
Jun 30, 1:41 PM CDT	Special Weather Statement	BIS	McLean, Oliver	49 min
Jun 30, 2:11 PM CDT	Special Weather Statement	BIS	Wells	49 min
Jun 30, 2:38 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan, Wells	52 min
Jun 30, 3:41 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Wells	49 min
Jun 30, 4:29 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Wells	32 min
Jun 30, 4:30 PM CDT	Areal Flood Advisory	BIS	Wells	109 min
Jun 30, 4:50 PM CDT	Special Weather Statement	BIS	Morton	40 min
Jun 30, 5:43 PM CDT	Special Weather Statement	BIS	Burleigh	47 min
Jun 30, 6:18 PM CDT	Flash Flood Warning	BIS	Wells	4 hr
Jun 30, 6:29 PM CDT	Tornado Warning	BIS	Burleigh, Kidder	31 min
Jun 30, 6:47 PM CDT	Special Weather Statement	BIS	Kidder, Logan	43 min
Jun 30, 6:57 PM CDT	Tornado Warning	BIS	Kidder	33 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2020 Every severe thunderstorm warning in 2020

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.