Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 90, NWS Bismarck, ND

June 27, 2026Billings County, Dunn County, Stark County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 27, 2026, 6:09 PM MDT for Billings County, Dunn County, Stark County, North Dakota. It was in force for 66 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 27, 2026, 6:09 PM MDT (00:09 UTC)
Expired
Jun 27, 2026, 7:15 PM MDT
In force
66 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Tornado
Possible
Damage threat
Considerable
Hail
1.75 in
Wind
50.0 mph

Counties Billings County, ND, Dunn County, ND, Stark County, ND

The radar

The Bismarck radar (KBIS), 164 km from the middle of the area, began a volume at 00:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 27, 3:05 PM MDTTornado WatchSPC11 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.2 hours before the alert went out and 169 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 2026-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1476 joules per kilogram.LCLLFCEL10008507005003002001001 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 2026-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 144 square meters per square second.193958Sfc1 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
1476 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
144 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.9

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 27, 5:57 PM MDT, 12 minutes earlier.

Area forecast discussion, Jun 27, 5:57 PM MDT, 12 minutes before
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Hazardous weather outlook, Jun 27, 2:40 PM MDT, 3 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Bismarck ND
340 PM CDT Sat Jun 27 2026

NDZ001>005-009-010-012-013-017>020-022-023-025-031>033-035>037-
040>044-046>048-050-051-055>062-282045-
Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-
McHenry-Pierce-McKenzie-Dunn-Mercer-Oliver-Sheridan-Wells-Foster-
Golden Valley-Billings-Stark-Burleigh-Kidder-Stutsman-Slope-
Hettinger-Grant-Bowman-Adams-Emmons-Logan-La Moure-McIntosh-
Dickey-Northwest Ward-Central and Southern Ward/Minot Area-
Western McLean-Eastern McLean-Western Morton-Eastern Morton-
Western Sioux-Eastern Sioux-
340 PM CDT Sat Jun 27 2026 /240 PM MDT Sat Jun 27 2026/

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...This Afternoon and Tonight

Numerous severe thunderstorms are possible through tonight.
Expected hazards include damaging winds to 80 mph, along with a
few tornadoes possible. Hail up to tennis ball sized is possible
with any discrete storms that form.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Isolated to scattered severe thunderstorms are possible Sunday
through Monday.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to provide reports to the NWS using standard
procedures, including through our social media accounts.

In the hours before

Local storm report, Jun 27, 5:57 PM MDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Bismarck ND
657 PM CDT Sat Jun 27 2026

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

0640 PM     Hail             6 WNW Mud Buttes        46.05N 103.89W
06/27/2026  M1.00 Inch       Bowman             ND   Emergency Mngr

            Emergency manager relayed report of 1 inch
            hail; also reports rain and winds up to 25
            MPH.

&&

CSD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 6:07 PM MDTSevere Thunderstorm Warning Considerable damage threatBISAdams, Bowman, Slope68 min
Jun 27, 6:33 PM MDTSevere Thunderstorm Warning Destructive damage threatBISAdams, Bowman, Slope42 min
Jun 27, 6:34 PM MDTTornado WarningBISBillings41 min
Jun 27, 6:40 PM MDTSevere Thunderstorm Warning Considerable damage threatBISBillings, Golden Valley, McKenzie65 min
Jun 27, 6:48 PM MDTSevere Thunderstorm Warning Destructive damage threatBISAdams, Bowman, Hettinger, Slope, Stark57 min
Jun 27, 7:02 PM MDTSevere Thunderstorm Warning Destructive damage threatBISBillings, Dunn, Golden Valley, McKenzie, Stark58 min
Jun 27, 7:14 PM MDTTornado WarningBISAdams46 min
Jun 27, 7:43 PM MDTSevere Thunderstorm Warning Considerable damage threatBISAdams, Grant, Hettinger, Morton, Sioux, Stark62 min
Jun 27, 7:45 PM MDTSevere Thunderstorm Warning Considerable damage threatBISDivide, McKenzie, Williams60 min
Jun 27, 7:54 PM MDTSevere Thunderstorm Warning Destructive damage threatBISAdams, Grant, Hettinger51 min
Jun 27, 7:55 PM MDTSevere Thunderstorm Warning Destructive damage threatBISBillings, Dunn, McKenzie, McLean, Mercer, Morton and 4 more65 min
Jun 27, 8:35 PM MDTSevere Thunderstorm Warning Considerable damage threatBISMcLean, Mercer, Morton, Mountrail, Oliver, Ward55 min
Jun 27, 8:41 PM MDTSevere Thunderstorm Warning Considerable damage threatBISBurke, Divide, McKenzie, Mountrail, Ward, Williams64 min
Jun 27, 8:43 PM MDTSevere Thunderstorm Warning Considerable damage threatBISAdams, Grant, Hettinger, Morton, Sioux62 min
Jun 27, 9:27 PM MDTSevere Thunderstorm WarningBISBurleigh, Emmons, McLean, Morton, Oliver, Sioux63 min
Jun 27, 9:29 PM MDTSevere Thunderstorm WarningBISBottineau, McHenry, McLean, Mercer, Oliver, Renville and 1 more61 min
Jun 27, 9:32 PM MDTSevere Thunderstorm WarningBISBottineau, Burke, Divide, Mountrail, Renville, Ward58 min
Jun 27, 9:44 PM MDTTornado WarningBISBurleigh, Morton, Oliver31 min
Jun 27, 10:06 PM MDTTornado WarningBISBurleigh, Emmons24 min
Jun 27, 10:10 PM MDTSevere Thunderstorm WarningBISMcHenry, Sheridan65 min
Jun 27, 10:25 PM MDTSevere Thunderstorm Warning Considerable damage threatBISBurleigh, Emmons, Kidder, Logan, McIntosh65 min
Jun 27, 10:29 PM MDTTornado WarningBISBurleigh, Emmons, Kidder31 min
Jun 27, 10:30 PM MDTSevere Thunderstorm WarningBISBottineau, McHenry, Renville, Ward60 min
Jun 27, 10:52 PM MDTSevere Thunderstorm WarningBISPierce, Sheridan, Wells68 min
Jun 27, 11:21 PM MDTSevere Thunderstorm WarningBISFoster, Kidder, Stutsman54 min
Jun 28, 12:18 AM MDTSpecial Weather StatementBISFoster, Stutsman42 min
Jun 28, 4:24 PM MDTSpecial Weather StatementBISBurke21 min
Jun 28, 4:32 PM MDTSevere Thunderstorm WarningBISBurke17 min
Jun 28, 5:41 PM MDTSpecial Weather StatementBISBurke34 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2026Every severe thunderstorm warning in 2026

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.