Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 41, NWS Bismarck, ND

July 10, 2011Dickey County, LaMoure County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 10, 2011, 4:10 PM CDT for Dickey County, LaMoure County, North Dakota. It was in force for 35 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 10, 2011, 4:10 PM CDT (21:10 UTC)
Expired: Jul 10, 2011, 4:45 PM CDT
In force: 35 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Dickey County, ND, LaMoure County, ND

The radar

The Aberdeen radar (KABR), 94 km from the middle of the area, began a volume at 21:13 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 10, 4:35 PM CDT	TORNADO	5 Nw Oakes, ND	OAKES POLICE DEPARTMENT REPORTS A TORNADO ON THE GROUND NEAR OAKES.

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 10, 11:08 AM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 10, 2:29 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.2 hours before the alert went out and 154 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: 1313 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 909 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

028 
WFUS53 KBIS 102110
TORBIS
NDC021-045-102145-
/O.NEW.KBIS.TO.W.0041.110710T2110Z-110710T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
410 PM CDT SUN JUL 10 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN DICKEY COUNTY IN SOUTHEAST NORTH DAKOTA...
  SOUTHEASTERN LAMOURE COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 445 PM CDT

* AT 408 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR LA MOURE...OR 43 MILES SOUTH OF JAMESTOWN...
  AND MOVING SOUTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LA MOURE...VERONA AND GLOVER.

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 4612 9801 4629 9851 4645 9841 4641 9811
      4637 9802 4630 9803 4628 9800 4612 9799
TIME...MOT...LOC 2110Z 295DEG 36KT 4632 9834

$$

HEINERT/AYD

2 follow-up statements

480 
WWUS53 KBIS 102116
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
416 PM CDT SUN JUL 10 2011

NDC021-045-102145-
/O.CON.KBIS.TO.W.0041.000000T0000Z-110710T2145Z/
DICKEY ND-LAMOURE ND-
416 PM CDT SUN JUL 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN LAMOURE AND
NORTHEASTERN DICKEY COUNTIES UNTIL 445 PM CDT...

AT 413 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR LA MOURE...OR 45 MILES SOUTH OF VALLEY CITY...
MOVING SOUTHEAST AT 40 MPH. LARGE HAIL TO THE SIZE OF TENNIS BALLS 
IS ALSO POSSIBLE WITH THIS STORM. 

LOCATIONS IMPACTED INCLUDE...
  VERONA AND GLOVER.

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 4612 9801 4629 9851 4645 9841 4641 9811
      4637 9802 4630 9803 4628 9800 4612 9799
TIME...MOT...LOC 2116Z 295DEG 36KT 4629 9826

$$

HEINERT/AYD

892 
WWUS53 KBIS 102125
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
425 PM CDT SUN JUL 10 2011

NDC021-045-102145-
/O.CON.KBIS.TO.W.0041.000000T0000Z-110710T2145Z/
DICKEY ND-LAMOURE ND-
425 PM CDT SUN JUL 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN LAMOURE AND
NORTHEASTERN DICKEY COUNTIES UNTIL 445 PM CDT...

AT 422 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR LA MOURE...OR 44 MILES SOUTH OF VALLEY CITY...
MOVING EAST AT 25 MPH. LARGE HAIL TO TENNIS BALL SIZE IS ALSO 
POSSIBLE WITH THIS STORM. 

LOCATIONS IMPACTED INCLUDE...
  GLOVER AND VERONA.

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 4612 9801 4629 9851 4645 9841 4641 9811
      4637 9802 4630 9803 4628 9800 4612 9799
TIME...MOT...LOC 2125Z 289DEG 23KT 4629 9822

$$

HEINERT/AYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 10:20 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	55 min
Jul 10, 10:58 AM CDT	Severe Thunderstorm Warning	BIS	Stark	62 min
Jul 10, 11:09 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	66 min
Jul 10, 11:16 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	59 min
Jul 10, 11:52 AM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver, Stark	26 min
Jul 10, 12:04 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	37 min
Jul 10, 12:09 PM CDT	Areal Flood Advisory	BIS	Grant, Morton	6 hr
Jul 10, 12:16 PM CDT	Severe Thunderstorm Warning	BIS	Morton	47 min
Jul 10, 12:33 PM CDT	Severe Thunderstorm Warning	BIS	Grant	15 min
Jul 10, 12:39 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	31 min
Jul 10, 1:01 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	29 min
Jul 10, 1:20 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jul 10, 1:30 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	60 min
Jul 10, 1:50 PM CDT	Areal Flood Advisory	BIS	Burleigh, Morton	4 hr
Jul 10, 2:12 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	63 min
Jul 10, 2:22 PM CDT	Tornado Warning	BIS	Emmons, Sioux	23 min
Jul 10, 2:23 PM CDT	Areal Flood Advisory	BIS	Grant, Sioux	4 hr
Jul 10, 2:27 PM CDT	Tornado Warning	BIS	Emmons, Logan	33 min
Jul 10, 2:30 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan	30 min
Jul 10, 2:51 PM CDT	Areal Flood Advisory	BIS	Burleigh, Emmons, Kidder, Logan, McIntosh, Stutsman	3 hr
Jul 10, 2:51 PM CDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	54 min
Jul 10, 2:57 PM CDT	Tornado Warning	BIS	Logan, McIntosh	33 min
Jul 10, 3:26 PM CDT	Tornado Warning	BIS	Dickey, LaMoure, Logan, McIntosh	34 min
Jul 10, 3:35 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	55 min
Jul 10, 3:38 PM CDT	Tornado Warning	BIS	McIntosh	37 min
Jul 10, 3:58 PM CDT	Tornado Warning	BIS	Dickey, LaMoure, McIntosh	32 min
Jul 10, 4:08 PM CDT	Areal Flood Advisory	BIS	Dickey, LaMoure	6 hr
Jul 10, 4:29 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	51 min
Jul 10, 4:30 PM CDT	Tornado Warning	BIS	Dickey	30 min
Jul 10, 4:36 PM CDT	Tornado Warning	BIS	Dickey	24 min
Jul 10, 5:52 PM CDT	Areal Flood Warning	BIS	Grant, Morton	24 hr

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.