Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 44, NWS Bismarck, ND

July 16, 2011Burleigh County, Sheridan County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 16, 2011, 5:31 PM CDT for Burleigh County, Sheridan County, North Dakota. It was in force for 29 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 16, 2011, 5:31 PM CDT (22:31 UTC)
Expired: Jul 16, 2011, 6:00 PM CDT
In force: 29 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Burleigh County, ND, Sheridan County, ND

The radar

The Bismarck radar (KBIS), 80 km from the middle of the area, began a volume at 22:32 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

Time	Report	Where	Remark
Jul 16, 5:35 PM CDT	TORNADO	9 N Regan, ND	TORNADO REPORTED BY NORTH DAKOTA GAME AND FISH OFFICIAL WHO FOLLOWED IT. TORNADO LIFTED AROUND 551 PM CDT IN SHERIDAN COUNTY NEAR 5TH ST NE AND 3RD AVE SE. WEATHER CHASERS ALSO REPORTED THIS TORNADO AND INDICATION FROM THEM IS THAT THERE MAY HAVE BEEN 2. LOCAL

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.

Issued	Product	Office	Lasted
Jul 16, 4:57 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.5 hours before the alert went out and 79 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 894 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 764 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 13.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

169 
WFUS53 KBIS 162231
TORBIS
NDC015-083-162300-
/O.NEW.KBIS.TO.W.0044.110716T2231Z-110716T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
531 PM CDT SAT JUL 16 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BURLEIGH COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  SOUTHERN SHERIDAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 600 PM CDT

* AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES SOUTHEAST OF NEW JOHNS LAKE...OR 35 MILES
  NORTH OF BISMARCK...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MCCLUSKY...DENHOFF AND GOODRICH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4761 10036 4751 10009 4735 10003 4723 10056
      4731 10068
TIME...MOT...LOC 2231Z 234DEG 15KT 4729 10053

$$

AYD

2 follow-up statements

890 
WWUS53 KBIS 162236
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
536 PM CDT SAT JUL 16 2011

NDC015-083-162300-
/O.CON.KBIS.TO.W.0044.000000T0000Z-110716T2300Z/
BURLEIGH ND-SHERIDAN ND-
536 PM CDT SAT JUL 16 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN SHERIDAN AND
NORTH CENTRAL BURLEIGH COUNTIES UNTIL 600 PM CDT...

AT 532 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS 
TORNADO WAS LOCATED 7 MILES NORTH OF REGAN...OR 35 MILES NORTH OF 
BISMARCK...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  MCCLUSKY...DENHOFF AND GOODRICH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4761 10036 4751 10009 4735 10003 4723 10056
      4731 10068
TIME...MOT...LOC 2236Z 244DEG 12KT 4729 10052

$$

AYD

924 
WWUS53 KBIS 162243
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
543 PM CDT SAT JUL 16 2011

NDC015-083-162300-
/O.CON.KBIS.TO.W.0044.000000T0000Z-110716T2300Z/
BURLEIGH ND-SHERIDAN ND-
543 PM CDT SAT JUL 16 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN SHERIDAN AND
NORTH CENTRAL BURLEIGH COUNTIES UNTIL 600 PM CDT...

AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO.  THIS TORNADO WAS LOCATED 7 MILES EAST OF NEW
JOHNS LAKE...OR 37 MILES NORTH OF BISMARCK...MOVING NORTHEAST AT 15
MPH.

LOCATIONS IMPACTED INCLUDE...
  MCCLUSKY...DENHOFF AND GOODRICH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4724 10051 4734 10065 4761 10036 4751 10009
      4735 10003
TIME...MOT...LOC 2243Z 230DEG 14KT 4731 10049

$$

AYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 11:32 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	58 min
Jul 16, 1:21 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mountrail, Ward	54 min
Jul 16, 1:34 AM CDT	Areal Flood Advisory	BIS	Burke, Mountrail, Williams	6 hr
Jul 16, 4:34 AM CDT	Areal Flood Advisory	BIS	McKenzie	3 hr
Jul 16, 5:03 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	57 min
Jul 16, 5:32 AM CDT	Areal Flood Advisory	BIS	Dunn, McKenzie	3 hr
Jul 16, 5:58 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail	62 min
Jul 16, 6:43 AM CDT	Severe Thunderstorm Warning	BIS	Mercer	33 min
Jul 16, 7:14 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Oliver	61 min
Jul 16, 8:10 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver, Sheridan	50 min
Jul 16, 8:54 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	51 min
Jul 16, 9:02 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	43 min
Jul 16, 9:28 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	62 min
Jul 16, 9:36 AM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	39 min
Jul 16, 5:57 PM CDT	Tornado Warning	BIS	Sheridan, Wells	33 min
Jul 16, 6:29 PM CDT	Tornado Warning	BIS	Sheridan, Wells	31 min
Jul 16, 6:52 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	53 min
Jul 16, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	Wells	61 min

Nearby

Tornado Warnings in North Dakota, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.