Alert archive / North Dakota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 37, NWS Bismarck, ND

June 14, 2020Golden Valley County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 14, 2020, 4:50 PM MDT for Golden Valley County, North Dakota. It was in force for 55 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 14, 2020, 4:50 PM MDT (22:50 UTC)
Expired: Jun 14, 2020, 5:45 PM MDT
In force: 55 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Golden Valley County, ND

The radar

The Glasgow radar (KGGW), 239 km from the middle of the area, began a volume at 22:51 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.

What was reported inside it

Time	Report	Where	Remark
Jun 14, 5:10 PM MDT	HAIL 1.25	Sentinel Butte, ND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 20 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 14, 2:20 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 10.8 hours before the alert went out and 239 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2478 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

714 
WUUS53 KBIS 142250
SVRBIS
NDC033-142345-
/O.NEW.KBIS.SV.W.0037.200614T2250Z-200614T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
450 PM MDT Sun Jun 14 2020

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Northern Golden Valley County in southwestern North Dakota...

* Until 545 PM MDT.

* At 450 PM MDT, a severe thunderstorm was located over Beach, moving
  north at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Sentinel Butte around 500 PM MDT.
  Trotters around 540 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4733 10404 4733 10367 4698 10368 4683 10378
      4683 10405
TIME...MOT...LOC 2250Z 201DEG 28KT 4691 10399 

HAIL...1.50IN
WIND...60MPH
 
$$

ABELING

1 follow-up statement

983 
WWUS53 KBIS 142302
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
502 PM MDT Sun Jun 14 2020

NDC033-142345-
/O.CON.KBIS.SV.W.0037.000000T0000Z-200614T2345Z/
Golden Valley ND-
502 PM MDT Sun Jun 14 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR NORTHERN GOLDEN VALLEY COUNTY...

At 502 PM MDT, a severe thunderstorm was located near Sentinel Butte,
or 6 miles northeast of Beach, moving northeast at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
northern Golden Valley County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4722 10404 4733 10367 4698 10368 4685 10379
      4685 10404
TIME...MOT...LOC 2302Z 209DEG 32KT 4698 10389 

HAIL...1.50IN
WIND...60MPH
 
$$

ABELING

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, 3:41 PM MDT, 1 hour 9 minutes earlier.

Area forecast discussion, Jun 14, 3:41 PM MDT, 1 hour 9 minutes before

Area Forecast Discussion
National Weather Service Bismarck ND
441 PM CDT Sun Jun 14 2020

.MESOSCALE DISCUSSION...
Issued at 441 PM CDT Sun Jun 14 2020

At 320 PM MDT, a supercell in northern Harding County in northwest
South Dakota was showing signs of splitting. A slight anticyclonic
curvature on RAP hodographs may actually favor left movers. However,
current radar trends are favoring the right mover. Later in time,
straight-line hodographs will continue to favor splitting storms.
Right moving supercells that are able to sustain will likely remain
in an environment that favors discrete storms.

A north-to-south oriented surface boundary near the ND/MT border is
becoming more evident on satellite with an increasing cu field along
the convergence zone. This boundary remains slightly farther west
than models suggested, likely due to a remnant outflow boundary
from earlier convection. A weak capping inversion may still be in
place here, but if deep moist convection can initiate, a
multicellular mode would be favored. Water vapor suggests better
mid level forcing remains upstream of this area.

&&

.UPDATE...
Issued at 324 PM CDT Sun Jun 14 2020

This update is for the severe thunderstorm watch 281 for west and
much of central North Dakota through 11 pm CDT.

&&

.SHORT TERM...(This evening through Monday)
Issued at 211 PM CDT Sun Jun 14 2020

This afternoon, a surface trough/cold front was located on the
Montana/North Dakota border. Scattered showers have moved through
the west half of the state so far today, and these appear
associated with warm advection ahead of the low. The area in
central North Dakota still remains well capped. Also clouds have
kept temperatures cool across much of the west so far.

Several strong cells have formed in west central North Dakota in
an area of weak cap strength and clearing skies. CAM models
agree in developing a line of storms along the cold front that
will move east into central North Dakota by mid evening.

Scattered severe storms are forecast along the front, probably
around and after 4 pm CDT. Initial storm mode will be discrete
with large hail as the shear will be more perpendicular to the
frontal boundary, but more linear modes will lead to a mixed hail
and wind threat evolving as the mid evening hours approach.

After this evening, the overnight will see the front move through
with cooler and drier air expected. Overnight lows tonight in the
lower 50s west to around 70 east.

Monday will be partly to mostly sunny with surface high pressure
moving through the region. Highs should be in the mid 70s to mid
80s.

.LONG TERM...(Monday night through Sunday)
Issued at 211 PM CDT Sun Jun 14 2020

Global models in general agreement with h5 upper low across the
northwest CONUS moving east with multiple shortwaves impacting
the northern plains this week. This will lead to an active week
with scattered to numerous showers and thunderstorms through the
period.

Tuesday will be warm, with highs in the low to mid 90s, cooling to
the 70s and mid 80s the rest of the week.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1232 PM CDT Sun Jun 14 2020

Hazards to aviation focused on a line of thunderstorms forecast
to develop along an eastward moving cold front currently along
the Montana and North Dakota border. This will impact
KXWA/KMOT-KBIS-KDIK locations between 21z and 02z this afternoon
and evening. Otherwise VFR conditions.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 9 PM CDT this evening for NDZ005-013-023-025-
036-037-047-048-050-051.

&&

MESOSCALE...Hollan
UPDATE...WAA
SHORT TERM...WAA
LONG TERM...WAA
AVIATION...WAA

Hazardous weather outlook, Jun 14, 2:27 PM MDT, 2 hours 23 minutes before

Hazardous Weather Outlook
National Weather Service Bismarck ND
327 PM CDT Sun Jun 14 2020

NDZ023-025-036-037-047-048-050-051-152030-
Wells-Foster-Kidder-Stutsman-Logan-La Moure-McIntosh-Dickey-
327 PM CDT Sun Jun 14 2020

This Hazardous Weather Outlook is for portions of south central
North Dakota and southeast North Dakota.

.DAY ONE...This Afternoon and Tonight

A wind advisory is in effect through the early evening. Expect
sustained winds around 30 mph with gusts to 50 mph. See
www.weather.gov for additional information.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Strong to severe thunderstorms are possible on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

NDZ003>005-011>013-019>022-034-035-042-045-046-152030-
Renville-Bottineau-Rolette-Ward-McHenry-Pierce-Mercer-Oliver-
McLean-Sheridan-Morton-Burleigh-Grant-Sioux-Emmons-
327 PM CDT Sun Jun 14 2020 /227 PM MDT Sun Jun 14 2020/

This Hazardous Weather Outlook is for portions of north central
North Dakota and south central North Dakota.

.DAY ONE...This Afternoon and Tonight

Scattered severe thunderstorms are possible across central North
Dakota this evening. The main hazards will be large hail up to
lime size and damaging wind gusts up to 75 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Strong to severe thunderstorms are possible on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters may be needed this evening.

NDZ001-002-009-010-017-018-031>033-040-041-043-044-152030-
Divide-Burke-Williams-Mountrail-McKenzie-Dunn-Golden Valley-
Billings-Stark-Slope-Hettinger-Bowman-Adams-
327 PM CDT Sun Jun 14 2020 /227 PM MDT Sun Jun 14 2020/

This Hazardous Weather Outlook is for portions of northwest North
Dakota and southwest North Dakota.

.DAY ONE...This Afternoon and Tonight

Scattered severe thunderstorms are possible across western North
Dakota this afternoon and early evening. The main hazards will be
large hail up to lime size and damaging wind gusts up to 75 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Strong to severe thunderstorms are possible on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters may be needed this afternoon and early this
evening.

waa

In the hours before

Special weather statement, Jun 14, 1:08 PM MDT, 3 hours 42 minutes before

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

NDZ017-142000-
McKenzie ND-
208 PM CDT Sun Jun 14 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MCKENZIE COUNTY
UNTIL 300 PM CDT/200 PM MDT/...

At 207 PM CDT/107 PM MDT/, a strong thunderstorm was located 15 miles
west of Grassy Butte, or 29 miles southwest of Watford City, moving
north at 45 mph.

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

Locations impacted include...
Watford City, Alexander, Arnegard, Theodore Roosevelt National Park
North Unit and Rawson.

LAT...LON 4789 10364 4783 10311 4733 10333 4733 10380
TIME...MOT...LOC 1907Z 193DEG 40KT 4743 10357

MJONES

Local storm report, Jun 14, 4:14 PM MDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
514 PM CDT SUN JUN 14 2020

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

0507 PM     HAIL             8 WSW BOWMAN HALEY DAM  45.95N 103.40W
06/14/2020  E1.25 INCH       BOWMAN             ND   STORM CHASER

&&

Local storm report, Jun 14, 4:19 PM MDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
519 PM CDT SUN JUN 14 2020

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

0510 PM     HAIL             8 W BOWMAN HALEY DAM    45.97N 103.41W
06/14/2020  E1.75 INCH       BOWMAN             ND   STORM CHASER

            ALONG HIGHWAY 85.

&&

Special weather statement, Jun 14, 4:43 PM MDT, 7 minutes before

Special Weather Statement
National Weather Service Bismarck ND
443 PM MDT Sun Jun 14 2020

NDZ031-142300-
Golden Valley ND-
443 PM MDT Sun Jun 14 2020

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL GOLDEN VALLEY COUNTY
UNTIL 500 PM MDT...

At 442 PM MDT, a strong thunderstorm was located near Beach, moving
north at 30 mph.

Half inch hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Beach and Sentinel Butte.

A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southwestern North Dakota.

LAT...LON 4701 10405 4703 10404 4697 10377 4674 10395
      4674 10404
TIME...MOT...LOC 2242Z 201DEG 28KT 4686 10403

ABELING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:31 AM MDT	Wind Advisory	BIS	Dickey, Foster, Kidder, LaMoure, Logan, McIntosh and 4 more	17 hr
Jun 14, 1:08 PM MDT	Special Weather Statement	BIS	McKenzie	52 min
Jun 14, 3:47 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	43 min
Jun 14, 4:17 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	43 min
Jun 14, 4:43 PM MDT	Special Weather Statement	BIS	Golden Valley	17 min
Jun 14, 4:58 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger	62 min
Jun 14, 5:22 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	53 min
Jun 14, 5:35 PM MDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	40 min
Jun 14, 5:40 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	50 min
Jun 14, 5:45 PM MDT	Special Weather Statement	BIS	McKenzie	15 min
Jun 14, 5:55 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	65 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.