Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 38, NWS Bismarck, ND

July 10, 20114 counties in North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 10, 2011, 3:26 PM CDT for 4 counties in North Dakota. It was in force for 34 min. 3 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 10, 2011, 3:26 PM CDT (20:26 UTC)
Expired
Jul 10, 2011, 4:00 PM CDT
In force
34 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon

Counties Dickey County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND

The radar

The Aberdeen radar (KABR), 103 km from the middle of the area, began a volume at 20:29 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 10, 3:40 PM CDTTSTM WND GST 7510 W Merricourt, NDARB OBSERVER REPORTED 70 TO 80 MILES PER HOUR WINDS WITH GRAIN BIN BLOWN DOWN. 2.90 INCHES PRECIPITATION IN 40 MINUTES AND 3/4 INCH HAIL.
Jul 10, 3:48 PM CDTTORNADO5 Nw Merricourt, NDDELAYED REPORT. DAMAGE ASSESSMENT TEAM SURVEYED DAMAGE AT A FARMSTEAD 5 MILES NORTHWEST OF MERRICOURT. RESIDENTS WITNESSED A TORNADO TOUCHDOWN IN A SHELTERBELT AS THEY TOOK COVER IN THEIR HOME. A POLE BARN WAS DAMAGED. NUMEROUS TREE TRUNKS AND LIMBS WERE SNAPP
Jul 10, 4:02 PM CDTTSTM WND GST 608 W Edgeley, NDWINDS ESTIMATED AT 50 TO 60 MPH...PEA SIZE HAIL.

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 10, 11:08 AM CDTSevere Thunderstorm WatchSPC8 hr
Jul 10, 2:29 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.4 hours before the alert went out and 142 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 2011-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 168 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 2011-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939587897117Sfc1 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
168 J/kg
Mixed-layer CIN
-388 J/kg
Mixed-layer LCL
1832 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

673 
WFUS53 KBIS 102026
TORBIS
NDC021-045-047-051-102100-
/O.NEW.KBIS.TO.W.0038.110710T2026Z-110710T2100Z/

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

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN DICKEY COUNTY IN SOUTHEAST NORTH DAKOTA...
  SOUTHWESTERN LAMOURE COUNTY IN SOUTHEAST NORTH DAKOTA...
  SOUTHEASTERN LOGAN COUNTY IN SOUTHEAST NORTH DAKOTA...
  NORTHEASTERN MCINTOSH COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 400 PM CDT.

* AT 321 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES NORTHEAST OF LEHR...OR 48 MILES SOUTHWEST
  OF JAMESTOWN...AND MOVING EAST AT 40 MPH. LARGE HAIL TO GOLF BALL  
  SIZE AND DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 80 MPH ARE ALSO 
  POSSIBLE WITH THIS STORM. 

* LOCATIONS IMPACTED INCLUDE...
  FREDONIA...KULM...EDGELEY AND MERRICOURT.

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 4644 9893 4635 9859 4606 9862 4613 9907
      4621 9936 4647 9933
TIME...MOT...LOC 2026Z 282DEG 36KT 4631 9917

$$

HEINERT/AYD
2 follow-up statements
651 
WWUS53 KBIS 102040
SVSBIS

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

NDC021-045-047-051-102100-
/O.CON.KBIS.TO.W.0038.000000T0000Z-110710T2100Z/
DICKEY ND-LAMOURE ND-LOGAN ND-MCINTOSH ND-
340 PM CDT SUN JUL 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MCINTOSH...
SOUTHEASTERN LOGAN...SOUTHWESTERN LAMOURE AND NORTHWESTERN DICKEY
COUNTIES UNTIL 400 PM CDT...

AT 338 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FREDONIA...OR 48 MILES SOUTH OF JAMESTOWN...
MOVING EAST AT 40 MPH.

AT 240 PM CDT...POSSIBLE TORNADO DAMAGE WAS REPORTED SOUTH OF 
NAPOLEON. 

LOCATIONS IMPACTED INCLUDE...
  KULM...EDGELEY AND MERRICOURT.

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 4641 9932 4644 9893 4635 9859 4606 9862
      4613 9907 4621 9936
TIME...MOT...LOC 2040Z 288DEG 35KT 4626 9905

$$

HEINERT
699 
WWUS53 KBIS 102047
SVSBIS

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

NDC021-045-047-051-102100-
/O.CON.KBIS.TO.W.0038.000000T0000Z-110710T2100Z/
DICKEY ND-LAMOURE ND-LOGAN ND-MCINTOSH ND-
347 PM CDT SUN JUL 10 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MCINTOSH...
SOUTHEASTERN LOGAN...SOUTHWESTERN LAMOURE AND NORTHWESTERN DICKEY
COUNTIES UNTIL 400 PM CDT...

AT 342 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR KULM...OR 48 MILES SOUTH OF JAMESTOWN...MOVING
EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  EDGELEY AND MERRICOURT.

THIS IS A DANGEROUS SITUATION. THOSE IN AND NEAR MERRICOURT SHOULD 
SEEK SHELTER IMMEDIATELY.

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 4641 9932 4644 9893 4635 9859 4606 9862
      4613 9907 4621 9936
TIME...MOT...LOC 2047Z 288DEG 35KT 4624 9895

$$

HEINERT/AYD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 10:20 AM CDTSevere Thunderstorm WarningBISGrant, Hettinger, Morton, Stark55 min
Jul 10, 10:58 AM CDTSevere Thunderstorm WarningBISStark62 min
Jul 10, 11:09 AM CDTSevere Thunderstorm WarningBISGrant, Morton66 min
Jul 10, 11:16 AM CDTSevere Thunderstorm WarningBISGrant, Morton59 min
Jul 10, 11:52 AM CDTSevere Thunderstorm WarningBISMercer, Morton, Oliver, Stark26 min
Jul 10, 12:04 PM CDTSevere Thunderstorm WarningBISBurleigh, Morton37 min
Jul 10, 12:09 PM CDTAreal Flood AdvisoryBISGrant, Morton6 hr
Jul 10, 12:16 PM CDTSevere Thunderstorm WarningBISMorton47 min
Jul 10, 12:33 PM CDTSevere Thunderstorm WarningBISGrant15 min
Jul 10, 12:39 PM CDTSevere Thunderstorm WarningBISBurleigh, McLean, Oliver31 min
Jul 10, 1:01 PM CDTSevere Thunderstorm WarningBISGrant, Morton29 min
Jul 10, 1:20 PM CDTSevere Thunderstorm WarningBISGrant, Sioux55 min
Jul 10, 1:30 PM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Morton60 min
Jul 10, 1:50 PM CDTAreal Flood AdvisoryBISBurleigh, Morton4 hr
Jul 10, 2:12 PM CDTSevere Thunderstorm WarningBISEmmons, Sioux63 min
Jul 10, 2:22 PM CDTTornado WarningBISEmmons, Sioux23 min
Jul 10, 2:23 PM CDTAreal Flood AdvisoryBISGrant, Sioux4 hr
Jul 10, 2:27 PM CDTTornado WarningBISEmmons, Logan33 min
Jul 10, 2:30 PM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Kidder, Logan30 min
Jul 10, 2:51 PM CDTAreal Flood AdvisoryBISBurleigh, Emmons, Kidder, Logan, McIntosh, Stutsman3 hr
Jul 10, 2:51 PM CDTSevere Thunderstorm WarningBISLogan, McIntosh54 min
Jul 10, 2:57 PM CDTTornado WarningBISLogan, McIntosh33 min
Jul 10, 3:35 PM CDTSevere Thunderstorm WarningBISDickey, McIntosh55 min
Jul 10, 3:38 PM CDTTornado WarningBISMcIntosh37 min
Jul 10, 3:58 PM CDTTornado WarningBISDickey, LaMoure, McIntosh32 min
Jul 10, 4:08 PM CDTAreal Flood AdvisoryBISDickey, LaMoure6 hr
Jul 10, 4:10 PM CDTTornado WarningBISDickey, LaMoure35 min
Jul 10, 4:29 PM CDTSevere Thunderstorm WarningBISDickey, LaMoure51 min
Jul 10, 4:30 PM CDTTornado WarningBISDickey30 min
Jul 10, 4:36 PM CDTTornado WarningBISDickey24 min
Jul 10, 5:52 PM CDTAreal Flood WarningBISGrant, Morton24 hr

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.