Alert archive / North Dakota / Tornado Warnings in 2024

Tornado Warning 13, NWS Bismarck, ND

August 28, 2024Sioux County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 28, 2024, 5:55 PM CDT for Sioux County, North Dakota. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 28, 2024, 5:55 PM CDT (22:55 UTC)
Expired
Aug 28, 2024, 6:45 PM CDT
In force
50 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Tornado
Observed
Hail
1.75 in

County Sioux County, ND

The radar

The Bismarck radar (KBIS), 86 km from the middle of the area, began a volume at 22:55 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
Aug 28, 4:41 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.9 hours before the alert went out and 87 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 12:00Z on 2024-08-28Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2024-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

051 
WFUS53 KBIS 282255
TORBIS
NDC085-282345-
/O.NEW.KBIS.TO.W.0013.240828T2255Z-240828T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
555 PM CDT Wed Aug 28 2024

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  Southeastern Sioux County in south central North Dakota...

* Until 645 PM CDT.

* At 555 PM CDT, a confirmed tornado was located near Selfridge, or
  12 miles north of Mclaughlin, moving east at 10 mph.

  HAZARD...Damaging tornado and golf ball size hail.

  SOURCE...Weather spotters confirmed tornado.

  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.

* This tornadic thunderstorm will remain over mainly rural areas of
  southeastern Sioux County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4604 10094 4608 10076 4595 10072 4594 10080
      4594 10094
TIME...MOT...LOC 2255Z 276DEG 8KT 4599 10088 

TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN

$$

HOLLAN
3 follow-up statements
013 
WWUS53 KBIS 282311
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
611 PM CDT Wed Aug 28 2024

NDC085-282345-
/O.CON.KBIS.TO.W.0013.000000T0000Z-240828T2345Z/
Sioux ND-
611 PM CDT Wed Aug 28 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHEASTERN SIOUX COUNTY...

At 611 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southeast of Selfridge, or 12 miles north of
Mclaughlin, moving east at 10 mph.

HAZARD...Tornado and golf ball 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.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Sioux County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4608 10076 4595 10072 4594 10080 4594 10091
      4605 10091
TIME...MOT...LOC 2311Z 258DEG 8KT 4600 10084 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

HOLLAN
188 
WWUS53 KBIS 282331
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
631 PM CDT Wed Aug 28 2024

NDC085-282345-
/O.CON.KBIS.TO.W.0013.000000T0000Z-240828T2345Z/
Sioux ND-
631 PM CDT Wed Aug 28 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHEASTERN SIOUX COUNTY...

At 631 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Selfridge, or 12 miles north of
Mclaughlin, moving east at 15 mph.

HAZARD...Tornado and golf ball 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.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Sioux County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 4608 10076 4595 10072 4594 10080 4594 10086
      4605 10083
TIME...MOT...LOC 2331Z 280DEG 13KT 4599 10079 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

HOLLAN
560 
WWUS53 KBIS 282346
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
646 PM CDT Wed Aug 28 2024

NDC085-282355-
/O.EXP.KBIS.TO.W.0013.000000T0000Z-240828T2345Z/
Sioux ND-
646 PM CDT Wed Aug 28 2024

...THE TORNADO WARNING FOR SOUTHEASTERN SIOUX COUNTY HAS EXPIRED...

The tornado threat has diminished and the Tornado Warning has 
expired. However, large hail and damaging winds remain likely and a 
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1100 PM CDT for south central
North Dakota.

Remember, a Severe Thunderstorm Warning still remains in effect for
southeastern Sioux County.

&&

LAT...LON 4608 10076 4595 10072 4594 10080 4594 10086
      4605 10083
TIME...MOT...LOC 2345Z 276DEG 8KT 4599 10074 

$$

HOLLAN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 5:53 AM CDTDense Fog AdvisoryBISBottineau, Dickey, Foster, Kidder, LaMoure, Logan and 5 more4 hr
Aug 28, 5:14 PM CDTSevere Thunderstorm Warning Considerable damage threatBISSioux61 min
Aug 28, 5:17 PM CDTSevere Thunderstorm Warning Considerable damage threatBISSioux58 min
Aug 28, 5:35 PM CDTTornado WarningBISSioux25 min
Aug 28, 5:39 PM CDTSevere Thunderstorm WarningBISMorton51 min
Aug 28, 6:09 PM CDTSevere Thunderstorm Warning Considerable damage threatBISEmmons, Sioux66 min
Aug 28, 6:10 PM CDTSevere Thunderstorm Warning Considerable damage threatBISBurleigh, Morton65 min
Aug 28, 6:45 PM CDTAreal Flood AdvisoryBISSioux6 hr

Nearby

Tornado Warnings in North Dakota, 2024Every tornado warning in 2024Tornadoes in 2024

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.