Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 28, NWS Bismarck, ND

July 8, 2011Stutsman County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 8, 2011, 6:42 PM CDT for Stutsman County, North Dakota. It was in force for 33 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: Jul 8, 2011, 6:42 PM CDT (23:42 UTC)
Expired: Jul 8, 2011, 7:15 PM CDT
In force: 33 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

County Stutsman County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 114 km from the middle of the area, began a volume at 23:45 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.

Issued	Product	Office	Lasted
Jul 8, 2:32 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.7 hours before the alert went out and 155 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: 57 J/kg
Mixed-layer CIN: -207 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

528 
WFUS53 KBIS 082342
TORBIS
NDC093-090015-
/O.NEW.KBIS.TO.W.0028.110708T2342Z-110709T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
642 PM CDT FRI JUL 8 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN STUTSMAN COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 715 PM CDT

* AT 638 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR PINGREE...OR 18 MILES NORTHWEST OF
  JAMESTOWN...AND MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BUCHANAN...SPIRITWOOD LAKE...COURTENAY AND KENSAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA.

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 4704 9900 4732 9908 4733 9846 4732 9845
      4701 9846
TIME...MOT...LOC 2342Z 260DEG 13KT 4713 9890

$$

HEINERT

2 follow-up statements

051 
WWUS53 KBIS 082356
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
656 PM CDT FRI JUL 8 2011

NDC093-090015-
/O.CON.KBIS.TO.W.0028.000000T0000Z-110709T0015Z/
STUTSMAN ND-
656 PM CDT FRI JUL 8 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN STUTSMAN
COUNTY UNTIL 715 PM CDT...

AT 651 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR PINGREE...OR 17 MILES NORTHWEST OF
JAMESTOWN...MOVING EAST AT 15 MPH.

LARGE HAIL...DAMAGING STRAIGHT LINE WINDS...AND VERY HEAVY RAIN CAN 
ALSO BE EXPECTED WITH THIS STORM. SEEK SHELTER IMMEDIATELY!

LOCATIONS IMPACTED INCLUDE...
  SPIRITWOOD LAKE...COURTENAY AND KENSAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.

&&

LAT...LON 4704 9900 4732 9908 4733 9846 4732 9845
      4701 9846
TIME...MOT...LOC 2356Z 260DEG 13KT 4714 9883

$$

HEINERT

361 
WWUS53 KBIS 090017
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
717 PM CDT FRI JUL 8 2011

NDC093-090027-
/O.EXP.KBIS.TO.W.0028.000000T0000Z-110709T0015Z/
STUTSMAN ND-
717 PM CDT FRI JUL 8 2011

...THE TORNADO WARNING FOR NORTHEASTERN STUTSMAN COUNTY HAS
EXPIRED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

LAT...LON 4704 9900 4732 9908 4733 9846 4732 9845
      4701 9846
TIME...MOT...LOC 2356Z 260DEG 13KT 4714 9883

$$

HEINERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 2:29 PM CDT	Tornado Warning	BIS	Golden Valley	31 min
Jul 8, 2:51 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie	39 min
Jul 8, 3:19 PM CDT	Areal Flood Advisory	BIS	Burke, Mountrail, Renville, Ward	3 hr
Jul 8, 3:29 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	40 min
Jul 8, 3:35 PM CDT	Severe Thunderstorm Warning	BIS	Grant	55 min
Jul 8, 3:39 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	66 min
Jul 8, 4:00 PM CDT	Areal Flood Advisory	BIS	Billings, Dunn, Stark	5 hr
Jul 8, 4:12 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	63 min
Jul 8, 4:21 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Stark	24 min
Jul 8, 4:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	64 min
Jul 8, 4:30 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	60 min
Jul 8, 4:39 PM CDT	Areal Flood Advisory	BIS	Burke, Divide, Williams	3 hr
Jul 8, 5:15 PM CDT	Tornado Warning	BIS	Foster, Kidder, Stutsman, Wells	30 min
Jul 8, 5:18 PM CDT	Tornado Warning	BIS	Grant, Morton	42 min
Jul 8, 5:19 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	14 min
Jul 8, 5:22 PM CDT	Tornado Warning	BIS	Dunn, Mercer	23 min
Jul 8, 5:41 PM CDT	Tornado Warning	BIS	Dunn, Mercer	49 min
Jul 8, 5:44 PM CDT	Tornado Warning	BIS	Stutsman	31 min
Jul 8, 5:53 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Sioux	52 min
Jul 8, 6:15 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	31 min
Jul 8, 6:21 PM CDT	Tornado Warning	BIS	Emmons, Morton, Sioux	24 min
Jul 8, 6:21 PM CDT	Tornado Warning	BIS	McLean, Mercer, Oliver	39 min
Jul 8, 6:45 PM CDT	Tornado Warning	BIS	Emmons, Morton, Sioux	45 min
Jul 8, 6:52 PM CDT	Areal Flood Advisory	BIS	Stutsman	6 hr
Jul 8, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Oliver, Sheridan	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.