Alert archive / North Dakota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 113, NWS Bismarck, ND

July 14, 2011Billings County, Golden Valley County, McKenzie County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 14, 2011, 10:42 PM MDT for Billings County, Golden Valley County, McKenzie County, North Dakota. It was in force for 63 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 14, 2011, 10:42 PM MDT (04:42 UTC)
Expired: Jul 14, 2011, 11:45 PM MDT
In force: 63 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Billings County, ND, Golden Valley County, ND, McKenzie County, ND

The radar

The Bismarck radar (KBIS), 235 km from the middle of the area, began a volume at 04:45 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 14, 4:33 PM MDT	Tornado Watch	SPC	7 hr
Jul 14, 10:01 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.7 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-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: 2132 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 698 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

753 
WUUS53 KBIS 150442
SVRBIS
NDC007-033-053-150545-
/O.NEW.KBIS.SV.W.0113.110715T0442Z-110715T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1042 PM MDT THU JUL 14 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN BILLINGS COUNTY IN SOUTHWEST NORTH DAKOTA...
  GOLDEN VALLEY COUNTY IN SOUTHWEST NORTH DAKOTA...
  SOUTHWESTERN MCKENZIE COUNTY IN NORTHWEST NORTH DAKOTA...

* UNTIL 1145 PM MDT.

* AT 1042 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 9 MILES SOUTHWEST OF SKAAR TO 5 MILES WEST OF CARLYLE...AND   
  MOVING NORTHEAST AT 50 MPH. HALF INCH SIZE HAIL MAY ALSO           
  ACCOMPANY THESE DAMAGING WINDS.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SKAAR...GOLVA AND BEACH AROUND 1055 PM MDT.
  ALPHA AND TROTTERS AROUND 1100 PM MDT.
  SENTINEL BUTTE AROUND 1110 PM MDT.
  MEDORA AROUND 1125 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING 60 MPH WINDS ACROSS EASTERN 
MONTANA.  SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

VERY HEAVY RAIN IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4756 10406 4781 10336 4684 10332 4654 10398
      4654 10405
TIME...MOT...LOC 0442Z 234DEG 42KT 4732 10421 4667 10419
WIND...HAIL 60MPH 0.75IN

$$

KINNEY

3 follow-up statements

405 
WWUS53 KBIS 150501
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1201 AM CDT FRI JUL 15 2011

NDC007-033-053-150545-
/O.CON.KBIS.SV.W.0113.000000T0000Z-110715T0545Z/
BILLINGS ND-GOLDEN VALLEY ND-MCKENZIE ND-
1101 PM MDT THU JUL 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
MCKENZIE...GOLDEN VALLEY AND WESTERN BILLINGS COUNTIES UNTIL 1145 PM
MDT...

AT 1100 PM MDT...TRAINED WEATHER SPOTTERS IN WIBAUX REPORTED A LINE 
OF SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 60 
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM SKAAR TO 
GOLVA...MOVING NORTHEAST AT 40 MPH. PENNY SIZE HAIL MAY ALSO 
ACCOMPANY THESE DAMAGING WINDS.

SEVERE THUNDERSTORMS WILL BE NEAR...
  TROTTERS AND SENTINEL BUTTE AROUND 1110 PM MDT.
  MEDORA AROUND 1130 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM PRODUCED WINDS AROUND 60 MPH IN WIBAUX AT 1045 PM MDT.  
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS.

VERY HEAVY RAIN IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4756 10406 4781 10336 4684 10332 4654 10398
      4654 10405
TIME...MOT...LOC 0459Z 235DEG 34KT 4736 10407 4678 10395
WIND...HAIL 60MPH 0.75IN

$$

KINNEY

886 
WWUS53 KBIS 150522
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1222 AM CDT FRI JUL 15 2011

NDC007-033-053-150545-
/O.CON.KBIS.SV.W.0113.000000T0000Z-110715T0545Z/
BILLINGS ND-GOLDEN VALLEY ND-MCKENZIE ND-
1122 PM MDT THU JUL 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
MCKENZIE...EASTERN GOLDEN VALLEY AND WESTERN BILLINGS COUNTIES UNTIL
1145 PM MDT...

AT 1118 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 10 MILES NORTH OF TROTTERS TO 7 MILES SOUTHWEST OF MEDORA...
MOVING NORTHEAST AT 40 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  MEDORA AROUND 1130 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

VERY HEAVY RAIN IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO
MINOR FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4758 10400 4781 10336 4684 10332 4679 10343
      4666 10371
TIME...MOT...LOC 0522Z 235DEG 34KT 4748 10380 4688 10359
WIND...HAIL 60MPH <.75IN

$$

KINNEY

895 
WWUS53 KBIS 150543
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1243 AM CDT FRI JUL 15 2011

NDC007-033-053-150553-
/O.EXP.KBIS.SV.W.0113.000000T0000Z-110715T0545Z/
BILLINGS ND-GOLDEN VALLEY ND-MCKENZIE ND-
1143 PM MDT THU JUL 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MCKENZIE...
EASTERN GOLDEN VALLEY AND WESTERN BILLINGS COUNTIES WILL EXPIRE AT
1245 AM CDT/1145 PM MDT/...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY.  HOWEVER GUSTY WINDS TO 50 MPH AND HEAVY RAIN ARE STILL 
POSSIBLE WITH THESE THUNDERSTORMS.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 4 AM MDT.

LAT...LON 4758 10400 4781 10336 4684 10332 4679 10343
      4666 10371
TIME...MOT...LOC 0543Z 235DEG 34KT 4759 10355 4699 10335

$$

KINNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 11:52 PM MDT	Areal Flood Advisory	BIS	Foster, Kidder, Stutsman, Wells	6 hr
Jul 15, 12:01 AM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	44 min
Jul 15, 12:05 AM MDT	Severe Thunderstorm Warning	BIS	Foster	55 min
Jul 15, 12:07 AM MDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, Mountrail	53 min
Jul 15, 12:13 AM MDT	Flash Flood Warning	BIS	Foster, Wells	6 hr
Jul 15, 12:23 AM MDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Stark	37 min
Jul 15, 12:29 AM MDT	Areal Flood Advisory	BIS	Burleigh, Kidder	4 hr
Jul 15, 12:43 AM MDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mercer, Mountrail, Williams	62 min
Jul 15, 1:02 AM MDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	58 min
Jul 15, 1:12 AM MDT	Areal Flood Advisory	BIS	Dunn, McKenzie, McLean, Mountrail, Williams	3 hr
Jul 15, 1:20 AM MDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail, Ward	55 min
Jul 15, 1:38 AM MDT	Areal Flood Advisory	BIS	Foster, Kidder, Stutsman	4 hr
Jul 15, 1:48 AM MDT	Flash Flood Warning	BIS	Foster, Stutsman	4 hr
Jul 15, 1:58 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	32 min
Jul 15, 2:11 AM MDT	Severe Thunderstorm Warning	BIS	McHenry, Renville, Ward	49 min
Jul 15, 2:21 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	19 min
Jul 15, 3:15 AM MDT	Excessive Heat Watch	BIS	Adams, Burleigh, Dickey, Dunn, Emmons, Foster and 12 more	11 hr
Jul 15, 4:27 AM MDT	Areal Flood Advisory	BIS	Stutsman	114 min
Jul 15, 5:59 AM MDT	Areal Flood Warning	BIS	Foster, Kidder, Stutsman, Wells	12 hr
Jul 15, 6:45 AM MDT	River Flood Warning	BIS	Stutsman	40 days
Jul 15, 2:01 PM MDT	Excessive Heat Warning	BIS	Adams, Bottineau, Burke, Burleigh, Dickey, Divide and 22 more	5 days

Nearby

Severe Thunderstorm Warnings in North Dakota, 2011 Every severe thunderstorm warning 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.