Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 20, NWS Bismarck, ND

July 8, 2011Golden Valley County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 8, 2011, 1:29 PM MDT for Golden Valley County, North Dakota. It was in force for 31 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, 1:29 PM MDT (19:29 UTC)
Expired
Jul 8, 2011, 2:00 PM MDT
In force
31 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon

County Golden Valley County, ND

The radar

The Glasgow radar (KGGW), 240 km from the middle of the area, began a volume at 19:31 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 nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 7.5 hours before the alert went out and 239 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, Glasgow Intl Airport, MT at 12:00Z on 2011-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 232 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, Glasgow Intl Airport, MT at 12:00Z on 2011-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 square meters per square second.19395878Sfc1 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
232 J/kg
Mixed-layer CIN
-269 J/kg
Mixed-layer LCL
1530 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

203 
WFUS53 KBIS 081929
TORBIS
NDC033-082000-
/O.NEW.KBIS.TO.W.0020.110708T1929Z-110708T2000Z/

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

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL GOLDEN VALLEY COUNTY IN SOUTHWEST NORTH DAKOTA...

* UNTIL 200 PM MDT

* AT 123 PM MDT...LOCAL LAW ENFORCEMENT REPORTED A FUNNEL CLOUD 
  WEST OF BEACH. DOPPLER RADAR SHOWED THIS POSSIBLE TORNADO MOVING
  EAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BEACH AND SENTINEL BUTTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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 4705 10405 4708 10405 4711 10394 4710 10374
      4687 10369 4687 10405 4705 10406
TIME...MOT...LOC 1928Z 273DEG 11KT 4696 10404

$$

HEINERT
2 follow-up statements
245 
WWUS53 KBIS 081946
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
146 PM MDT FRI JUL 8 2011

NDC033-082000-
/O.CON.KBIS.TO.W.0020.000000T0000Z-110708T2000Z/
GOLDEN VALLEY ND-
146 PM MDT FRI JUL 8 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL GOLDEN VALLEY
COUNTY UNTIL 200 PM MDT...

AT 141 PM MDT...LAW ENFORCEMENT REPORTED A FUNNEL CLOUD WEST OF 
BEACH AT 123 PM MDT. A TORNADO MAY DEVELOP AT ANY TIME. THIS 
DANGEROUS STORM WAS LOCATED NEAR BEACH...OR 8 MILES EAST OF 
WIBAUX...MOVING EAST AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF WESTERN GOLDEN VALLEY COUNTY.

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.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

LAT...LON 4694 10371 4690 10405 4705 10406 4705 10405
      4708 10405 4711 10394 4710 10374
TIME...MOT...LOC 1945Z 266DEG 10KT 4698 10399

$$

HEINERT
282 
WWUS53 KBIS 081958
SVSBIS

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

NDC033-082006-
/O.EXP.KBIS.TO.W.0020.000000T0000Z-110708T2000Z/
GOLDEN VALLEY ND-
158 PM MDT FRI JUL 8 2011

...THE TORNADO WARNING FOR CENTRAL GOLDEN VALLEY COUNTY WILL EXPIRE 
AT 200 PM MDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED...WITH NO 
ADDITIONAL REPORTS OF FUNNEL CLOUDS. HOWEVER...THIS STORM MAY STILL 
STRENGTHEN.

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM MDT FOR 
CENTRAL AND NORTHERN GOLDEN VALLEY COUNTY.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

LAT...LON 4694 10371 4690 10405 4705 10406 4705 10405
      4708 10405 4711 10394 4710 10374
TIME...MOT...LOC 1956Z 266DEG 10KT 4698 10394

$$

HEINERT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 1:51 PM MDTSevere Thunderstorm WarningBISGolden Valley, McKenzie39 min
Jul 8, 2:19 PM MDTAreal Flood AdvisoryBISBurke, Mountrail, Renville, Ward3 hr
Jul 8, 2:29 PM MDTSevere Thunderstorm WarningBISBurke, Mountrail, Renville, Ward40 min
Jul 8, 2:35 PM MDTSevere Thunderstorm WarningBISGrant55 min
Jul 8, 2:39 PM MDTSevere Thunderstorm WarningBISBillings, Golden Valley66 min
Jul 8, 3:00 PM MDTAreal Flood AdvisoryBISBillings, Dunn, Stark5 hr
Jul 8, 3:12 PM MDTSevere Thunderstorm WarningBISDunn63 min
Jul 8, 3:21 PM MDTSevere Thunderstorm WarningBISBillings, Stark24 min
Jul 8, 3:26 PM MDTSevere Thunderstorm WarningBISGrant, Morton64 min
Jul 8, 3:30 PM MDTSevere Thunderstorm WarningBISGrant, Morton60 min
Jul 8, 3:39 PM MDTAreal Flood AdvisoryBISBurke, Divide, Williams3 hr
Jul 8, 4:15 PM MDTTornado WarningBISFoster, Kidder, Stutsman, Wells30 min
Jul 8, 4:18 PM MDTTornado WarningBISGrant, Morton42 min
Jul 8, 4:19 PM MDTSevere Thunderstorm WarningBISDunn, McLean, Mercer14 min
Jul 8, 4:22 PM MDTTornado WarningBISDunn, Mercer23 min
Jul 8, 4:41 PM MDTTornado WarningBISDunn, Mercer49 min
Jul 8, 4:44 PM MDTTornado WarningBISStutsman31 min
Jul 8, 4:53 PM MDTSevere Thunderstorm WarningBISBurleigh, Emmons, Morton, Sioux52 min
Jul 8, 5:15 PM MDTSevere Thunderstorm WarningBISStutsman31 min
Jul 8, 5:21 PM MDTTornado WarningBISEmmons, Morton, Sioux24 min
Jul 8, 5:21 PM MDTTornado WarningBISMcLean, Mercer, Oliver39 min
Jul 8, 5:42 PM MDTTornado WarningBISStutsman33 min
Jul 8, 5:45 PM MDTTornado WarningBISEmmons, Morton, Sioux45 min
Jul 8, 5:52 PM MDTAreal Flood AdvisoryBISStutsman6 hr
Jul 8, 5:59 PM MDTSevere Thunderstorm WarningBISMcHenry, McLean, Oliver, Sheridan61 min

Nearby

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