Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 64, NWS Bismarck, ND

July 17, 2011LaMoure County, Stutsman County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 17, 2011, 5:13 PM CDT for LaMoure County, Stutsman County, North Dakota. It was in force for 47 min. 4 reports 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 17, 2011, 5:13 PM CDT (22:13 UTC)
Expired
Jul 17, 2011, 6:00 PM CDT
In force
47 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon

Counties LaMoure County, ND, Stutsman County, ND

The radar

The Aberdeen radar (KABR), 129 km from the middle of the area, began a volume at 22:14 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 17, 5:22 PM CDTHAIL 0.25Millarton, NDCORRECTED TIME OF EVENT FROM 422 PM CDT TO 522 PM CDT. RELAYED BY MEDIA.
Jul 17, 5:22 PM CDTHAIL 2Millarton, NDCORRECTED TIME OF EVENT FROM 422 PM CDT TO 522 PM CDT AND SIZE OF HAIL FROM 0.25 INCH TO 2.00 INCH DIAMETER. ERROR WAS THAT OF THE NWS IN TYPING THE REPORT. RELAYED BY MEDIA.
Jul 17, 6:05 PM CDTTORNADO11 Ne Edgeley, NDRELAYED BY LAW ENFORCEMENT. FARMSTEAD HIT BY TORNADO. HOUSE DAMAGED. NO INJURIES.
Jul 17, 6:05 PM CDTTORNADO7 Se Nortonville, ND*** 1 INJ *** UPPER BOUND EF3 TORNADO. WIND SPEEDS 165 MPH. MOVED SOUTHEAST AND LIFTED 6 MILES SOUTH SOUTHEAST OF BERLIN AROUND 645 PM CDT. TIMES ARE ESTIMATED. THIS WAS ALL WITHIN LAMOURE COUNTY. PATH LENGTH WAS 15 MILES AND WIDTH WAS 1/2 MILE AT ITS WIDEST.

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 17, 3:37 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.2 hours before the alert went out and 165 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 12:00Z on 2011-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4227 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 12:00Z on 2011-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 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
4227 J/kg
Mixed-layer CIN
-184 J/kg
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
37.4

Open this sounding in Storm Lab

The text

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

111 
WFUS53 KBIS 172213
TORBIS
NDC045-093-172300-
/O.NEW.KBIS.TO.W.0064.110717T2213Z-110717T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
513 PM CDT SUN JUL 17 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

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

* UNTIL 600 PM CDT

* AT 508 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR MILLARTON...OR 17 MILES SOUTH OF
  JAMESTOWN...AND MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MILLARTON...MONTPELIER...NORTONVILLE...ADRIAN...DICKEY AND MARION.

WIND GUSTS TO 70 MPH AND HAIL UP TO QUARTER SIZE ARE ALSO LIKELY 
WITH THIS STORM. ALSO...VERY HEAVY RAIN COULD RESULT IN PONDING OF 
WATER.

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.

&&

LAT...LON 4633 9864 4673 9907 4688 9885 4673 9843
      4664 9843 4664 9816 4663 9814
TIME...MOT...LOC 2212Z 311DEG 25KT 4666 9880

$$

AYD
2 follow-up statements
441 
WWUS53 KBIS 172227
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
527 PM CDT SUN JUL 17 2011

NDC045-093-172300-
/O.CON.KBIS.TO.W.0064.000000T0000Z-110717T2300Z/
LAMOURE ND-STUTSMAN ND-
527 PM CDT SUN JUL 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN STUTSMAN AND
WESTERN LAMOURE COUNTIES UNTIL 600 PM CDT...

AT 521 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR MILLARTON...OR 20 MILES SOUTH OF JAMESTOWN...
MOVING SOUTHEAST AT 25 MPH.

IN ADDITION...AT 522 PM CDT 2 INCH DIAMETER HAIL WAS REPORTED AT 
MILLARTON...STUTSMAN COUNTY...WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  ADRIAN...DICKEY AND MARION.

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.

&&

LAT...LON 4633 9864 4671 9905 4687 9883 4673 9843
      4664 9843 4664 9816 4663 9814
TIME...MOT...LOC 2226Z 310DEG 24KT 4660 9869

$$

AYD
588 
WWUS53 KBIS 172249
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
549 PM CDT SUN JUL 17 2011

NDC045-093-172300-
/O.CON.KBIS.TO.W.0064.000000T0000Z-110717T2300Z/
LAMOURE ND-STUTSMAN ND-
549 PM CDT SUN JUL 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN STUTSMAN AND
LAMOURE COUNTIES UNTIL 600 PM CDT...

AT 542 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR NORTONVILLE...OR 25 MILES SOUTH OF
JAMESTOWN...MOVING SOUTHEAST AT 25 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  NORTONVILLE AROUND 550 PM CDT
  DICKEY AROUND 600 PM CDT.

HAIL THE SIZE OF GOLF BALLS AND WIND GUSTS TO 60 MPH ARE ALSO 
OCCURRING WITH THIS SEVERE STORM.

MAJOR HIGHWAYS AFFECTED INCLUDE HIGHWAY 281 BETWEEN JAMESTOWN AND 
EDGELEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA MOVE TO A BASEMENT SHELTER. MOTORISTS 
SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES.

&&

LAT...LON 4633 9864 4665 9890 4673 9866 4674 9845
      4673 9843 4664 9843 4664 9816 4663 9814
TIME...MOT...LOC 2245Z 317DEG 18KT 4653 9863

$$

VINING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:20 PM CDTFlash Flood WarningBISFoster, Wells6 hr
Jul 16, 7:25 PM CDTSevere Thunderstorm WarningBISBurleigh, Emmons65 min
Jul 16, 7:36 PM CDTTornado WarningBISWells24 min
Jul 16, 8:00 PM CDTTornado WarningBISWells45 min
Jul 16, 8:13 PM CDTTornado WarningBISEmmons32 min
Jul 16, 8:44 PM CDTTornado WarningBISWells46 min
Jul 16, 8:59 PM CDTTornado WarningBISKidder31 min
Jul 16, 9:30 PM CDTTornado WarningBISKidder, Stutsman, Wells45 min
Jul 16, 9:38 PM CDTFlash Flood WarningBISFoster, Stutsman4 hr
Jul 16, 9:44 PM CDTTornado WarningBISEmmons31 min
Jul 17, 1:31 AM CDTAreal Flood WarningBISFoster, Stutsman, Wells18 hr
Jul 17, 9:40 AM CDTSevere Thunderstorm WarningBISWard50 min
Jul 17, 9:54 AM CDTTornado WarningBISWard36 min
Jul 17, 10:13 AM CDTSevere Thunderstorm WarningBISMcHenry, Ward47 min
Jul 17, 10:25 AM CDTTornado WarningBISMcHenry, McLean, Sheridan, Ward35 min
Jul 17, 10:57 AM CDTTornado WarningBISMcHenry, McLean, Pierce, Sheridan33 min
Jul 17, 11:26 AM CDTTornado WarningBISMcHenry, Pierce, Sheridan, Wells49 min
Jul 17, 11:29 AM CDTRiver Flood WarningBISWard9 days
Jul 17, 12:13 PM CDTTornado WarningBISWells32 min
Jul 17, 12:44 PM CDTSevere Thunderstorm WarningBISWells16 min
Jul 17, 1:11 PM CDTTornado WarningBISFoster64 min
Jul 17, 2:11 PM CDTTornado WarningBISFoster, Stutsman49 min
Jul 17, 2:33 PM CDTFlash Flood WarningBISFoster6 hr
Jul 17, 3:31 PM CDTTornado WarningBISKidder, Stutsman29 min
Jul 17, 3:58 PM CDTTornado WarningBISKidder, Stutsman32 min
Jul 17, 4:29 PM CDTTornado WarningBISStutsman46 min
Jul 17, 4:44 PM CDTFlash Flood WarningBISStutsman3 hr
Jul 17, 6:02 PM CDTTornado WarningBISLaMoure43 min
Jul 17, 6:28 PM CDTTornado WarningBISDickey62 min
Jul 17, 6:45 PM CDTTornado WarningBISLaMoure30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.