Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 59, NWS Bismarck, ND

July 17, 2011Foster County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 17, 2011, 1:11 PM CDT for Foster County, North Dakota. It was in force for 64 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 17, 2011, 1:11 PM CDT (18:11 UTC)
Expired
Jul 17, 2011, 2:15 PM CDT
In force
64 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon

County Foster County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 109 km from the middle of the area, began a volume at 18:13 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

TimeReportWhereRemark
Jul 17, 1:42 PM CDTTORNADO2 W Juanita, NDTORNADO ON THE GROUND FOR 3 TO 4 MINUTES.

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, 9:58 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 6.2 hours before the alert went out and 166 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.

781 
WFUS53 KBIS 171811
TORBIS
NDC031-171915-
/O.NEW.KBIS.TO.W.0059.110717T1811Z-110717T1915Z/

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

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN FOSTER COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 215 PM CDT

* AT 106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES NORTHWEST OF BRANTFORD...OR 34 MILES
  SOUTH OF DEVILS LAKE...AND MOVING SOUTHEAST AT 30 MPH.

* IN ADDITION...AT 1245 PM CDT...GOLF BALL SIZE HAIL WAS             
  REPORTED IN BREMEN WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  GRACE CITY...JUANITA...MCHENRY AND GLENFIELD.

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.

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

&&

LAT...LON 4732 9854 4758 9918 4759 9917 4760 9899
      4760 9849 4733 9849
TIME...MOT...LOC 1810Z 295DEG 25KT 4762 9899

$$

TM
3 follow-up statements
415 
WWUS53 KBIS 171831
SVSBIS

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

NDC031-171915-
/O.CON.KBIS.TO.W.0059.000000T0000Z-110717T1915Z/
FOSTER ND-
131 PM CDT SUN JUL 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN FOSTER COUNTY
UNTIL 215 PM CDT...

AT 129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR GRACE CITY...OR 39 MILES SOUTH OF DEVILS
LAKE...MOVING SOUTHEAST AT 30 MPH.

LARGE HAIL TO GOLFBALL SIZE IS POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  JUANITA...MCHENRY AND GLENFIELD.

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.

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

&&

LAT...LON 4732 9854 4758 9918 4759 9917 4760 9899
      4760 9849 4733 9849
TIME...MOT...LOC 1831Z 305DEG 27KT 4754 9883

$$

TM/AYD
649 
WWUS53 KBIS 171842
SVSBIS

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

NDC031-171915-
/O.CON.KBIS.TO.W.0059.000000T0000Z-110717T1915Z/
FOSTER ND-
142 PM CDT SUN JUL 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN FOSTER COUNTY
UNTIL 215 PM CDT...

AT 139 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR JUANITA...OR 41 MILES NORTH OF JAMESTOWN...
MOVING SOUTHEAST AT 30 MPH.

AT 140 PM CDT...LAW ENFORCEMENT REPORTED STRONG ROTATION AND FUNNEL 
CLOUDS REPEATEDLY FORMING NEAR GRACE CITY.

LOCATIONS IMPACTED INCLUDE...
  JUANITA...MCHENRY AND GLENFIELD.

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.

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

&&

LAT...LON 4732 9853 4734 9861 4751 9901 4759 9903
      4760 9899 4760 9852 4759 9849 4733 9849
TIME...MOT...LOC 1842Z 305DEG 27KT 4749 9873

$$

TM/AYD
151 
WWUS53 KBIS 171852
SVSBIS

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

NDC031-171915-
/O.CON.KBIS.TO.W.0059.000000T0000Z-110717T1915Z/
FOSTER ND-
152 PM CDT SUN JUL 17 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN FOSTER COUNTY
UNTIL 215 PM CDT...

AT 148 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR JUANITA...OR 38 MILES NORTH OF JAMESTOWN...
MOVING SOUTHEAST AT 30 MPH.

AT 142 PM CDT...A STORM CHASER REPORTED A TORNADO THAT WAS ON THE 
GROUND 2 MILES WEST OF JUANITA AND HAS SINCE LIFTED. THOSE IN AND 
NEAR JUANITA AND GLENFIELD SHOULD TAKE COVER IMMEDIATELY. 

LOCATIONS IMPACTED INCLUDE...
  GLENFIELD.

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.

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

&&

LAT...LON 4732 9855 4735 9865 4746 9889 4760 9889
      4759 9861 4760 9860 4760 9852 4759 9849
      4733 9849
TIME...MOT...LOC 1851Z 305DEG 27KT 4745 9865

$$
TM/AYD

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, 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, 5:13 PM CDTTornado WarningBISLaMoure, Stutsman47 min
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.