Alert archive / North Dakota / Tornado Warnings in 2017

Tornado Warning 4, NWS Bismarck, ND

July 21, 2017Burleigh County, Oliver County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 21, 2017, 8:48 PM CDT for Burleigh County, Oliver County, North Dakota. It was in force for 27 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
Jul 21, 2017, 8:48 PM CDT (01:48 UTC)
Expired
Jul 21, 2017, 9:15 PM CDT
In force
27 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Burleigh County, ND, Oliver County, ND

The radar

The Bismarck radar (KBIS), 43 km from the middle of the area, began a volume at 01:49 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 21, 8:50 PM CDTTORNADO4 Wsw Sanger, NDTHIS IS A PRELIMINARY REPORT. THIS TORNADO TOUCHED DOWN APPROXIMATELY 850 PM CDT AND LIFTED BY 915 PM CDT. IT OCCURRED OVER RURAL AREAS, WITH NO DAMAGE REPORTS RECEIVED AT THE TIME OF THIS REPORT.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 21, 3:07 PM CDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.8 hours before the alert went out and 45 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 2017-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2130 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 2017-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.1939587897Sfc1 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
2130 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1710 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

392 
WFUS53 KBIS 220148
TORBIS
NDC015-065-220215-
/O.NEW.KBIS.TO.W.0004.170722T0148Z-170722T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
848 PM CDT FRI JUL 21 2017

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  West central Burleigh County in south central North Dakota...
  Southeastern Oliver County in south central North Dakota...

* Until 915 PM CDT

* At 848 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles southwest of Cross Ranch State Park, or 9 miles
  south of Washburn, moving southeast at 30 mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Weather spotters reported funnel cloud. 

  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
  west central Burleigh and southeastern Oliver Counties, including
  the following locations: Sanger and Price.

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.

&&

LAT...LON 4714 10113 4720 10108 4719 10099 4717 10098
      4716 10096 4716 10081 4715 10076 4704 10085
      4699 10093
TIME...MOT...LOC 0148Z 304DEG 25KT 4715 10107 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

ABELING
3 follow-up statements
914 
WWUS53 KBIS 220159
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
859 PM CDT FRI JUL 21 2017

NDC015-065-220215-
/O.CON.KBIS.TO.W.0004.000000T0000Z-170722T0215Z/
Burleigh ND-Oliver ND-
859 PM CDT FRI JUL 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR WEST
CENTRAL BURLEIGH AND SOUTHEASTERN OLIVER COUNTIES...
    
At 859 PM CDT, a confirmed tornado was located 7 miles south of Cross
Ranch State Park, or 12 miles south of Washburn, moving southeast at
30 mph.

HAZARD...Damaging tornado and quarter 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. 

Locations impacted include...
Wilton, Sanger and Price. 

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.

&&

LAT...LON 4714 10113 4720 10108 4719 10099 4717 10098
      4716 10096 4716 10081 4715 10076 4704 10085
      4699 10093
TIME...MOT...LOC 0159Z 304DEG 24KT 4711 10099 

TORNADO...OBSERVED
HAIL...1.00IN

$$

ABELING
460 
WWUS53 KBIS 220206
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
906 PM CDT FRI JUL 21 2017

NDC015-065-220215-
/O.CON.KBIS.TO.W.0004.000000T0000Z-170722T0215Z/
Burleigh ND-Oliver ND-
906 PM CDT FRI JUL 21 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR WEST
CENTRAL BURLEIGH AND SOUTHEASTERN OLIVER COUNTIES...
    
At 906 PM CDT, a confirmed tornado was located 8 miles south of Cross
Ranch State Park, or 13 miles south of Washburn, moving southeast at
25 mph.

HAZARD...Damaging tornado and quarter 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
west central Burleigh and southeastern Oliver Counties, including the
following locations: Price.

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.

&&

LAT...LON 4717 10098 4716 10096 4713 10083 4711 10079
      4704 10085 4699 10093 4709 10106
TIME...MOT...LOC 0206Z 306DEG 20KT 4710 10097 

TORNADO...OBSERVED
HAIL...1.00IN

$$

ABELING
481 
WWUS53 KBIS 220215
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
915 PM CDT FRI JUL 21 2017

NDC015-065-220225-
/O.EXP.KBIS.TO.W.0004.000000T0000Z-170722T0215Z/
Burleigh ND-Oliver ND-
915 PM CDT FRI JUL 21 2017

...THE TORNADO WARNING FOR WEST CENTRAL BURLEIGH AND SOUTHEASTERN
OLIVER COUNTIES HAS EXPIRED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.  However
small hail is still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
south central North Dakota.

LAT...LON 4717 10098 4716 10096 4713 10083 4711 10079
      4704 10085 4699 10093 4709 10106
TIME...MOT...LOC 0215Z 304DEG 25KT 4708 10092 

$$

ABELING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 7:18 PM CDTSevere Thunderstorm WarningBISBottineau, Burke, Renville57 min
Jul 21, 7:19 PM CDTSevere Thunderstorm WarningBISEmmons, Logan, McIntosh56 min
Jul 21, 7:46 PM CDTSpecial Weather StatementBISMcLean29 min
Jul 21, 8:04 PM CDTSpecial Weather StatementBISMcLean26 min
Jul 21, 8:10 PM CDTSevere Thunderstorm WarningBISLaMoure, Logan, Stutsman65 min
Jul 21, 8:10 PM CDTSevere Thunderstorm WarningBISMcHenry, McLean, Sheridan, Ward65 min
Jul 21, 8:14 PM CDTSevere Thunderstorm WarningBISBottineau, Renville61 min
Jul 21, 8:16 PM CDTSevere Thunderstorm WarningBISBurleigh, McLean, Oliver59 min
Jul 21, 9:09 PM CDTSevere Thunderstorm WarningBISBottineau, McHenry, Pierce, Rolette66 min
Jul 21, 9:13 PM CDTSevere Thunderstorm WarningBISBurleigh62 min
Jul 21, 9:24 PM CDTSpecial Weather StatementBISLaMoure36 min
Jul 21, 9:29 PM CDTSpecial Weather StatementBISDickey31 min
Jul 21, 9:40 PM CDTSevere Thunderstorm WarningBISMcHenry, Pierce, Ward65 min
Jul 21, 9:44 PM CDTSevere Thunderstorm WarningBISDickey, LaMoure61 min
Jul 21, 9:47 PM CDTSevere Thunderstorm WarningBISBurleigh, Morton, Oliver58 min
Jul 21, 10:12 PM CDTSevere Thunderstorm WarningBISMcHenry, Pierce33 min
Jul 21, 10:16 PM CDTTornado WarningBISPierce29 min
Jul 21, 10:24 PM CDTSevere Thunderstorm WarningBISBurleigh, Morton66 min
Jul 21, 10:36 PM CDTSpecial Weather StatementBISLaMoure24 min
Jul 21, 10:43 PM CDTSpecial Weather StatementBISLaMoure32 min
Jul 21, 10:51 PM CDTSevere Thunderstorm WarningBISPierce54 min
Jul 21, 10:52 PM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Morton68 min
Jul 21, 11:00 PM CDTSevere Thunderstorm WarningBISLaMoure15 min
Jul 21, 11:37 PM CDTSpecial Weather StatementBISWells53 min
Jul 21, 11:39 PM CDTSpecial Weather StatementBISWells51 min
Jul 21, 11:41 PM CDTSevere Thunderstorm WarningBISLogan, McIntosh64 min
Jul 22, 4:22 AM CDTRed Flag WarningBISAdams, Billings, Bowman, Golden Valley, Grant, Hettinger and 3 more17 hr

Nearby

Tornado Warnings in North Dakota, 2017Every tornado warning in 2017Tornadoes in 2017

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.