Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 119, NWS Bismarck, ND

June 28, 2018Adams County, Bowman County, Slope County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 28, 2018, 4:57 AM MDT for Adams County, Bowman County, Slope County, North Dakota. It was in force for 63 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 28, 2018, 4:57 AM MDT (10:57 UTC)
Expired
Jun 28, 2018, 6:00 AM MDT
In force
63 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Adams County, ND, Bowman County, ND, Slope County, ND

The radar

The Bismarck radar (KBIS), 194 km from the middle of the area, began a volume at 11:00 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, 11.0 hours before the alert went out and 199 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2018-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2018-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2452 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 28, 4:50 AM MDT, 7 minutes earlier.

Area forecast discussion, Jun 28, 4:50 AM MDT, 7 minutes before
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Hazardous weather outlook, Jun 28, 2:44 AM MDT, 2 hours 13 minutes before
Hazardous Weather Outlook
National Weather Service Bismarck ND
344 AM CDT Thu Jun 28 2018

NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-290845-
Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-Ward-
McHenry-Pierce-McKenzie-Dunn-Mercer-Oliver-McLean-Sheridan-Wells-
Foster-Golden Valley-Billings-Stark-Morton-Burleigh-Kidder-
Stutsman-Slope-Hettinger-Grant-Bowman-Adams-Sioux-Emmons-Logan-
La Moure-McIntosh-Dickey-
344 AM CDT Thu Jun 28 2018 /244 AM MDT Thu Jun 28 2018/

This Hazardous Weather Outlook is for portions of north central
North Dakota, northwest North Dakota, south central North Dakota,
southeast North Dakota, and southwest North Dakota.

.DAY ONE...Today and Tonight

A significant and widespread severe weather event is possible
across western and central North Dakota Thursday and Thursday
night. However some sources of uncertainty still remain, including
impacts from morning storms, storm coverage south of the warm
front, and eventual location of the warm front.

A few strong to severe storms will continue to be possible this
morning with large hail up to half dollar size possible, but the
overall threat will be much higher later this afternoon and
tonight.

Scattered thunderstorms may form along a warm front between I-94
and US Highway 2 Thursday afternoon. More numerous thunderstorms
are expected Thursday evening and into the night across a larger
portion of western and central North Dakota. Thunderstorms that
form Thursday afternoon through Thursday night are likely to
become severe. Very large hail to around baseball size, damaging
winds to near 75 mph, a few tornadoes, and localized flash
flooding are the primary threats.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The chance for thunderstorms continues Friday and Saturday across
much of western and central North Dakota. A few storms could be
strong Friday across the far south central and James River
Valley, but severe weather is not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely across western and central North
Dakota on Thursday. A significant and widespread severe weather
event is possible.

ZH

In the hours before

Special weather statement, Jun 28, 1:30 AM MDT, 3 hours 27 minutes before
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Local storm report, Jun 28, 2:02 AM MDT, 2 hours 55 minutes before
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Special weather statement, Jun 28, 2:17 AM MDT, 2 hours 40 minutes before
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Special weather statement, Jun 28, 4:08 AM MDT, 49 minutes before
Special Weather Statement
National Weather Service Bismarck ND
408 AM MDT THU JUN 28 2018

NDZ040-043-281100-
Slope ND-Bowman ND-
408 AM MDT THU JUN 28 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN BOWMAN AND WESTERN
SLOPE COUNTIES UNTIL 500 AM MDT...

At 407 AM MDT, a strong thunderstorm was located 10 miles southwest
of Marmarth, or 14 miles southeast of Baker, moving northeast at 25
mph.

Nickel size hail will be possible with this storm.

Locations impacted include...
Rhame, Marmarth, Griffin, Sunset Butte and Pretty Butte.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4635 10404 4656 10366 4608 10349 4607 10405
TIME...MOT...LOC 1007Z 243DEG 21KT 4620 10410

HARGROVE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 1:30 AM MDTSpecial Weather StatementBISMorton45 min
Jun 28, 1:52 AM MDTSevere Thunderstorm WarningBISBurleigh53 min
Jun 28, 2:17 AM MDTSpecial Weather StatementBISMercer28 min
Jun 28, 4:08 AM MDTSpecial Weather StatementBISBowman52 min
Jun 28, 5:11 AM MDTSpecial Weather StatementBISSlope49 min
Jun 28, 6:02 AM MDTSevere Thunderstorm WarningBISAdams, Bowman58 min
Jun 28, 7:00 AM MDTSevere Thunderstorm WarningBISAdams, Grant, Sioux60 min
Jun 28, 7:56 AM MDTSevere Thunderstorm WarningBISGrant, Sioux64 min
Jun 28, 8:58 AM MDTSevere Thunderstorm WarningBISEmmons, Sioux47 min
Jun 28, 9:37 AM MDTSevere Thunderstorm WarningBISGrant, Hettinger53 min
Jun 28, 1:01 PM MDTFlash Flood WatchBISBillings, Bottineau, Burke, Divide, Dunn, Golden Valley and 10 more14 hr
Jun 28, 3:17 PM MDTSevere Thunderstorm WarningBISMcKenzie43 min
Jun 28, 4:04 PM MDTSevere Thunderstorm WarningBISMcKenzie, Williams23 min
Jun 28, 5:32 PM MDTSevere Thunderstorm WarningBISDunn58 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.