Alert archive / North Dakota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 50, NWS Bismarck, ND

June 15, 2020Mountrail County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 15, 2020, 12:33 AM CDT for Mountrail County, North Dakota. It was in force for 42 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 15, 2020, 12:33 AM CDT (05:33 UTC)
Expired: Jun 15, 2020, 1:15 AM CDT
In force: 42 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Mountrail County, ND

The radar

The Minot AFB radar (KMBX), 112 km from the middle of the area, began a volume at 05:35 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, 5.6 hours before the alert went out and 202 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: 1013 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 2176 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 14, 10:58 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jun 14, 10:58 PM CDT, 1 hour 35 minutes before

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Hazardous weather outlook, Jun 14, 10:53 PM CDT, 1 hour 40 minutes before

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In the hours before

Local storm report, Jun 14, 11:28 PM CDT, 1 hour 5 minutes before

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Local storm report, Jun 14, 11:42 PM CDT, 51 minutes before

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Local storm report, Jun 14, 11:43 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BISMARCK ND
1143 PM CDT SUN JUN 14 2020

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

0715 PM     HAIL             1 S FAIRFIELD           47.18N 103.22W
06/14/2020  E2.00 INCH       BILLINGS           ND   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 1 S
            FAIRFIELD. DELAYED REPORT FROM SOCIAL MEDIA.

&&

Local storm report, Jun 14, 11:44 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BISMARCK ND
1144 PM CDT SUN JUN 14 2020

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

0718 PM     HAIL             3 ENE SOUTH FAIRFIELD   47.14N 103.15W
06/14/2020  M1.75 INCH       BILLINGS           ND   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 3 ENE
            SOUTH FAIRFIELD. DELAYED REPORT FROM SOCIAL
            MEDIA.

&&

Special weather statement, Jun 14, 11:52 PM CDT, 41 minutes before

Special Weather Statement
National Weather Service Bismarck ND
1152 PM CDT Sun Jun 14 2020

NDZ001-150545-
Divide ND-
1152 PM CDT Sun Jun 14 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DIVIDE COUNTY UNTIL 1245
AM CDT...

At 1152 PM CDT, a strong thunderstorm was located 6 miles north of
Alamo, or 18 miles southwest of Crosby, moving northeast at 50 mph.

Half inch hail will be possible with this storm.

Locations impacted include...
Crosby and Noonan.

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 4900 10294 4884 10294 4863 10329 4863 10366
      4900 10333
TIME...MOT...LOC 0452Z 217DEG 46KT 4868 10347

CJS

Special weather statement, Jun 15, 12:13 AM CDT, 20 minutes before

Special Weather Statement
National Weather Service Bismarck ND
1213 AM CDT Mon Jun 15 2020

NDZ010-017-150545-
McKenzie ND-Mountrail ND-
1213 AM CDT Mon Jun 15 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MCKENZIE AND
NORTHERN MOUNTRAIL COUNTIES UNTIL 1245 AM CDT...

At 1212 AM CDT, a strong thunderstorm was located 8 miles north of 4
Bears Lodge, or 19 miles southwest of Stanley, moving northeast at 40
mph.

Penny size hail and wind gusts to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Ross around 1235 AM CDT.
  Stanley around 1240 AM CDT.

Other locations impacted by this storm include White Earth and White
Earth Bay Recreation Area.

LAT...LON 4840 10202 4795 10256 4807 10284 4813 10283
      4817 10283 4839 10281
TIME...MOT...LOC 0512Z 208DEG 35KT 4810 10264

EDWARDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	61 min
Jun 14, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Stark	46 min
Jun 14, 7:40 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	35 min
Jun 14, 7:49 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	23 min
Jun 14, 7:59 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	61 min
Jun 14, 8:17 PM CDT	Special Weather Statement	BIS	Williams	43 min
Jun 14, 8:34 PM CDT	Special Weather Statement	BIS	Mercer	26 min
Jun 14, 8:56 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	49 min
Jun 14, 9:01 PM CDT	Special Weather Statement	BIS	Burke	44 min
Jun 14, 9:20 PM CDT	Severe Thunderstorm Warning	BIS	Burke	55 min
Jun 14, 9:45 PM CDT	Special Weather Statement	BIS	Renville	45 min
Jun 14, 10:47 PM CDT	Special Weather Statement	BIS	Golden Valley	43 min
Jun 14, 11:01 PM CDT	Special Weather Statement	BIS	McKenzie	44 min
Jun 14, 11:19 PM CDT	Special Weather Statement	BIS	Golden Valley	41 min
Jun 14, 11:52 PM CDT	Special Weather Statement	BIS	Divide	53 min
Jun 15, 12:13 AM CDT	Special Weather Statement	BIS	Mountrail	32 min
Jun 15, 1:13 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Renville, Ward	47 min
Jun 15, 1:20 AM CDT	Special Weather Statement	BIS	Mountrail	25 min
Jun 15, 1:42 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail	48 min
Jun 15, 1:48 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	31 min
Jun 15, 1:53 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	37 min
Jun 15, 2:24 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Burke, Renville, Ward	55 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.