Alert archive / North Dakota / Tornado Warnings in 2026

Tornado Warning 16, NWS Bismarck, ND

July 16, 2026Foster County, Wells County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 16, 2026, 9:43 PM CDT for Foster County, Wells County, North Dakota. It was in force for 47 min. 2 reports 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
Jul 16, 2026, 9:43 PM CDT (02:43 UTC)
Expired
Jul 16, 2026, 10:30 PM CDT
In force
47 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Foster County, ND, Wells County, ND

The radar

The Minot AFB radar (KMBX), 135 km from the middle of the area, began a volume at 02:44 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

TimeReportWhereRemark
Jul 16, 10:00 PM CDTHAIL 1Bremen, NDReport relayed via broadcast media.
Jul 16, 10:06 PM CDTTORNADO8 Sse Bremen, NDPhotos of a tornado relayed via broadcast media.

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 one storm report to this tornado warning; the first came 23 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.

IssuedProductOfficeLasted
Jul 16, 6:20 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.7 hours before the alert went out and 144 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 2026-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1440 joules per kilogram.LCLEL10008507005003002001001 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 2026-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1440 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
2657 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

856 
WFUS53 KBIS 170243
TORBIS
NDC031-103-170330-
/O.NEW.KBIS.TO.W.0016.260717T0243Z-260717T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
943 PM CDT Thu Jul 16 2026

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  Northeastern Wells County in south central North Dakota...
  Western Foster County in southeastern North Dakota...

* Until 1030 PM CDT.

* At 943 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 12 miles northeast of Fessenden, or 22 miles east of
  Harvey, moving southeast at 20 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without
           shelter. Mobile homes will be damaged or destroyed. Damage
           to roofs, windows and vehicles will occur. Tree damage is
           likely.

* Locations impacted include...
  Bremen and Hamberg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4774 9959 4785 9947 4785 9937 4784 9930
      4767 9930 4767 9927 4759 9927 4759 9920
      4745 9930
TIME...MOT...LOC 0243Z 310DEG 19KT 4778 9946

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Johnson
2 follow-up statements
887 
WWUS53 KBIS 170300
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1000 PM CDT Thu Jul 16 2026

NDC031-103-170330-
/O.CON.KBIS.TO.W.0016.000000T0000Z-260717T0330Z/
Foster ND-Wells ND-
1000 PM CDT Thu Jul 16 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN WELLS AND WESTERN FOSTER COUNTIES...

At 1000 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles north of Cathay, or 19 miles northwest of
Carrington, moving southeast at 30 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed. Damage
         to roofs, windows and vehicles will occur. Tree damage is
         likely.

Locations impacted include...
  Bremen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4768 9953 4784 9939 4784 9930 4767 9930
      4767 9927 4759 9927 4759 9920 4745 9930
TIME...MOT...LOC 0243Z 315DEG 26KT 4776 9949

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Johnson
710 
WWUS53 KBIS 170311
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1011 PM CDT Thu Jul 16 2026

NDC031-103-170330-
/O.CON.KBIS.TO.W.0016.000000T0000Z-260717T0330Z/
Foster ND-Wells ND-
1011 PM CDT Thu Jul 16 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN WELLS AND WESTERN FOSTER COUNTIES...

At 1011 PM CDT, a confirmed tornado was located 8 miles north of
Cathay, or 21 miles northwest of Carrington, moving east at 10 mph.

HAZARD...Damaging tornado and quarter size hail.

SOURCE...Broadcast media confirmed tornado around 15 miles east of
         Fessenden.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed. Damage
         to roofs, windows and vehicles will occur. Tree damage is
         likely.

Locations impacted include...
  Bremen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4768 9953 4783 9937 4784 9930 4767 9930
      4767 9927 4759 9927 4759 9920 4745 9930
TIME...MOT...LOC 0300Z 276DEG 8KT 4768 9947

TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN

$$

Johnson

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 16, 6:57 PM CDT, 2 hours 46 minutes earlier. Its key messages:

  • Isolated thunderstorms from south central North Dakota to the Turtle Mountains this evening. A few severe storms are possible in the north central.
  • Patchy fog is possible in northwest North Dakota tonight through mid Friday morning.
  • Slightly cooler Friday and Saturday, then hot again for most areas on Sunday. Temperatures are then favored to fall closer to normal next week, with forecast highs mostly in the 80s.
Area forecast discussion, Jul 16, 6:57 PM CDT, 2 hours 46 minutes before
Area Forecast Discussion
National Weather Service Bismarck ND
657 PM CDT Thu Jul 16 2026

.KEY MESSAGES...

- Isolated thunderstorms from south central North Dakota to the
  Turtle Mountains this evening. A few severe storms are
  possible in the north central.

- Patchy fog is possible in northwest North Dakota tonight
  through mid Friday morning.

- Slightly cooler Friday and Saturday, then hot again for most
  areas on Sunday. Temperatures are then favored to fall closer
  to normal next week, with forecast highs mostly in the 80s.

&&

.UPDATE...
Issued at 657 PM CDT Thu Jul 16 2026

A severe thunderstorm watch has been issued until midnight for
Rolette, Pierce, Wells, and Foster counties.

Currently, isolated thunderstorms are developing along a
frontal boundary draped from eastern Bottineau down through
western Sioux County. With a lack of shear, storms in the south
are having a more difficult time sustaining themselves. However,
near the Canadian border, storms development is starting to
intensify near the triple point where a lot higher shear is
present. The primary threats are wind and hail with brief heavy
rain. However, a tornado cannot be ruled out. Storms will likely
move to the east of the CWA within the next couple to few
hours, which may allow the aforementioned counties to be
canceled earlier than the current expiration time.

&&

.DISCUSSION...
Issued at 230 PM CDT Thu Jul 16 2026

Increasingly zonal flow is found over the northern Plains this
afternoon as low amplitude shortwave moving across Canada
flattens the upper level ridge that has been prevalent over much
of the CONUS over the past week. At the surface, a center of
low pressure has been steady lofted toward northeast North
Dakota by the passage of the previously mentioned shortwave,
dragging an inverted surface trough / cold front across the
forecast area this afternoon. An interrogating of BUFKIT model
soundings across portions of central North Dakota reveals a
somewhat robust convective environment developing through the
early evening, with model MUCAPE values approaching 3000 to 3500
J/KG overlapping with 0-6KM shear values around 30 to 35 knots
over portions of the north central and the north east. The
biggest obstacle to CI would be a fairly robust low level
capping inversion over much of the forecast area, with 850mb
temps roughly 5 degrees higher than the surface. That being
said, with forecast surface temperatures expected to approach
convective temperatures by the early evening, it wouldn't be
overly surprising to see this cap erode enough to allow for some
isolated thunderstorms to develop. With orientation of BULK
shear vectors generally perpendicular to the inverted
trough/cold front, discrete storms can generally be
anticipated, while sufficient shear and with at least somewhat
curved hodographs could promote a transient supercell or two.
The primary hazard associated with any severe storm would be
large hail up to 2 inches in diameter, though high DCAPE values
approaching 1500 J/KG would also suggest strong winds up to 70
MPH are also possible. The overall potential for tornadoes
remains low, with near surface SRH and shear values remain well
below expected norms. That being said, conditions across north
central North Dakota are analogous to previous events where
we've had had high-based hybrid tornadoes, where a developing
landspout along a surface boundary becomes anchored to a
supercell (with research suggesting these types of hybrid
tornadoes occur when you have an overlap of very high cape
values exceeding 3000 J/KG, strong deep layer sheer around 30 to
40 knots, low near surface SRH, and developing supercells along
a cold front). With that in mind, we will need to keep a close
eye on any supercells that do end up developing this evening.
Also of note is the above normal PWATs over much of central and
eastern North Dakota today, around 1.5 to 1.75 inches, which
means that heavy rainfall can also be anticipated with any storm
that does develop. With a discrete storm mode, this heavy
rainfall is expected to be fairly brief, and thus flash flood
concerns remains low at this time. For today, the SPC has placed
portions of north central North Dakota and the northern James
River Valley into a Marginal (level 1 of 5) risk for isolated
severe thunderstorms.

Above normal high temperatures in the mid 90s to lower 100s
continue along the south half of the state today, while
conditions across the normal remain slightly cooler with highs
from the lower 80s to lower 90s. Along with dewpoints generally
in the upper 60s to lower 70s, apparent temperatures across
portions of the southwest and south central are expected to be
around 100F this afternoon into early this evening. A Heat
Advisory remains in effect along and south of Highway 200
through 10 PM CDT tonight. With low temperatures forecast mainly
in the lower 60s to lower 70s, better overnight recovery is
expected across western and central North Dakota than we have
seen all week, which is help alleviate further heat concerns
moving into the start of the weekend. Otherwise for tonight,
patchy fog will be possible across portions of the far northwest
through Friday morning as a near surface temperature inversion
develops, and as northeasterly winds become very light
overnight.

Northwesterly flow is then generally expected across western
and central North Dakota as we head into the weekend, promoting
a slight cooling trend that will promote highs from the lower to
mid 80s along the International Border, up to the mid 90s and
lower 100s. This synoptic pattern is also more conducive for
precipitation, with at least low chances for showers and a few
storms expected late Friday into Saturday morning across the far
west. A more robust Canadian trough is then expected Saturday
night into Sunday, turning flow aloft more zonal and promoting
low to medium chances for precpitation across much of western
and central North Dakota. Overall QPF is expected to be fairly
limited due to the transient nature of these showers and storms,
though high PWATs through the weekend would allow for brief
period of moderate to heavy rainfall when and where
thunderstorms develop. CSU machine learning has begun to
highlight portions of the forecast on Sunday, which is expected
to be associated with storms in the afternoon. We will monitor
forecast trends through the weekend.

A return to northwesterly flow as we head into early next week
will again allow the cooling trend to continue, bringing highs
back down toward near normal by the midweek. With this synoptic
pattern, low chances for showers and thunderstorms can be
expected somewhere in North Dakota just about any given day,
though the ensemble does not advertise a strong precpitation or
severe signal at this time.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 657 PM CDT Thu Jul 16 2026

A north to south cold frontal boundary is producing isolated
thunderstorms this evening in parts of central North Dakota.
Some of these storms may be severe in the north central for
areas east of KMOT early this evening. Storms should move off to
the east over the next few hours. Overall, the probability of
any thunderstorms impacting KBIS or KJMS is low. As the frontal
boundary moves east, winds that are currently out of the south
will switch to a northwesterly component. Patchy fog may
develop in the northwest, while MVFR/IFR ceilings are possible
in the north central.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 10 PM CDT /9 PM MDT/ this evening for
NDZ017>020-022-023-025-031>033-035>037-040>044-046>048-050-051-
057>062.

&&

UPDATE...Telken
DISCUSSION...Adam
AVIATION...Telken
Hazardous weather outlook, Jul 16, 6:05 PM CDT, 3 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Bismarck ND
605 PM CDT Thu Jul 16 2026

NDZ020-022-023-025-035>037-042-046-047-050-058>062-172315-
Oliver-Sheridan-Wells-Foster-Burleigh-Kidder-Stutsman-Grant-
Emmons-Logan-McIntosh-Eastern McLean-Western Morton-
Eastern Morton-Western Sioux-Eastern Sioux-
605 PM CDT Thu Jul 16 2026 /505 PM MDT Thu Jul 16 2026/

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

.DAY ONE...Tonight

A Heat Advisory is in effect through this evening. See
www.weather.gov/bis for additional information.

Isolated thunderstorms are possible this evening. A strong to
severe storm or two is possible. Large hail, gusty winds, and brief
periods of heavy rainfall are the main hazards.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NDZ017>019-031>033-040-041-043-044-048-051-057-172315-
McKenzie-Dunn-Mercer-Golden Valley-Billings-Stark-Slope-Hettinger-
Bowman-Adams-La Moure-Dickey-Western McLean-
605 PM CDT Thu Jul 16 2026 /505 PM MDT Thu Jul 16 2026/

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

.DAY ONE...Tonight

A Heat Advisory is in effect through this evening. See
www.weather.gov/bis for additional information.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NDZ004-005-012-013-172315-
Bottineau-Rolette-McHenry-Pierce-
605 PM CDT Thu Jul 16 2026

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

.DAY ONE...Tonight

Isolated thunderstorms are possible this evening. A strong to
severe storm or two is possible. Large hail, gusty winds, and brief
periods of heavy rainfall are the main hazards. A tornado cannot
be ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NDZ001>003-009-010-055-056-172315-
Divide-Burke-Renville-Williams-Mountrail-Northwest Ward-
Central and Southern Ward/Minot Area-
605 PM CDT Thu Jul 16 2026

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

.DAY ONE...Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

Telken

In the hours before

Local storm report, Jul 16, 8:33 PM CDT, 1 hour 10 minutes before
Preliminary Local Storm Report
National Weather Service Bismarck ND
833 PM CDT Thu Jul 16 2026

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

0804 PM     Landspout        6 S Wolford             48.41N 99.70W
07/16/2026                   Pierce             ND   Storm Chaser

            Multiple photos of a thin tornado. Report
            relayed via social media.

&&

Telken

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:25 PM CDTSevere Thunderstorm WarningBISPierce, Rolette65 min
Jul 16, 9:17 PM CDTTornado WarningBISWells28 min
Jul 16, 10:29 PM CDTTornado WarningBISFoster, Wells31 min
Jul 17, 2:36 AM CDTDense Fog AdvisoryBISBottineau, Burke, Divide, Dunn, McKenzie, McLean and 5 more8 hr

Nearby

Tornado Warnings in North Dakota, 2026Every tornado warning in 2026Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.