Alert archive / North Dakota / Tornado Warnings in 2012

Tornado Warning 6, NWS Bismarck, ND

July 15, 2012Burke County, Renville County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 15, 2012, 8:28 PM CDT for Burke County, Renville County, North Dakota. It was in force for 32 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 15, 2012, 8:28 PM CDT (01:28 UTC)
Expired: Jul 15, 2012, 9:00 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Burke County, ND, Renville County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 15, 8:34 PM CDT	TSTM WND DMG	7 N Norma, ND	REPORTED NUMEROUS 12 INCH DIAMETER TREES UPROOTED WITH SEVERAL BROKEN BRANCHES. DAMAGE EXTENDS FROM 7 MILES NORTH OF NORMA TO 10 MILES NORTH OF NORMA.

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 15, 5:31 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.5 hours before the alert went out and 254 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: 1118 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 2727 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

787 
WFUS53 KBIS 160128
TORBIS
NDC013-075-160200-
/O.NEW.KBIS.TO.W.0006.120716T0128Z-120716T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
828 PM CDT SUN JUL 15 2012

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN RENVILLE COUNTY IN NORTH CENTRAL NORTH DAKOTA
  NORTHEASTERN BURKE COUNTY IN NORTHWEST NORTH DAKOTA

* UNTIL 900 PM CDT

* AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 9 MILES SOUTHEAST OF NORTHGATE...OR 55 MILES EAST
  OF CROSBY...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHERWOOD AND LORAINE.

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 4900 10173 4901 10156 4900 10154 4873 10155
      4878 10202 4880 10202 4881 10215 4879 10216
      4879 10231 4900 10233 4901 10228
TIME...MOT...LOC 0128Z 270DEG 24KT 4894 10206

$$

AYD

2 follow-up statements

676 
WWUS53 KBIS 160139
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
839 PM CDT SUN JUL 15 2012

NDC013-075-160200-
/O.CON.KBIS.TO.W.0006.000000T0000Z-120716T0200Z/
BURKE ND-RENVILLE ND-
839 PM CDT SUN JUL 15 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN RENVILLE AND
NORTHEASTERN BURKE COUNTIES UNTIL 900 PM CDT...

AT 835 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS 
STORM WAS LOCATED 11 MILES NORTH OF NORMA...OR 56 MILES NORTHWEST OF 
MINOT...MOVING SOUTHEAST AT 30 MPH.

PING PONG BALL SIZE HAIL AND DAMAGING STRAIGHT LINE WINDS IN EXCESS 
OF 60 MPH ARE ALSO POSSIBLE WITH THIS STORM. 

LOCATIONS IMPACTED INCLUDE...
  LORAINE AND SHERWOOD.

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 4900 10154 4873 10155 4878 10202 4880 10202
      4881 10206 4881 10215 4879 10215 4879 10227
      4900 10223 4901 10156
TIME...MOT...LOC 0139Z 294DEG 25KT 4888 10197

$$

AYD

851 
WWUS53 KBIS 160151
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
851 PM CDT SUN JUL 15 2012

NDC013-075-160200-
/O.CON.KBIS.TO.W.0006.000000T0000Z-120716T0200Z/
BURKE ND-RENVILLE ND-
851 PM CDT SUN JUL 15 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN RENVILLE AND
NORTHEASTERN BURKE COUNTIES UNTIL 900 PM CDT...

AT 849 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 8 MILES NORTH OF NORMA...OR 52 MILES NORTHWEST OF
MINOT...MOVING SOUTHEAST AT 25 MPH.

PING PONG BALL SIZE HAIL AND DAMAGING STRAIGHT LINE WINDS IN EXCESS 
OF 60 MPH ARE ALSO POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  LORAINE AND SHERWOOD.

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 4881 10215 4899 10216 4901 10156 4900 10154
      4873 10155 4878 10202 4880 10202 4881 10206
TIME...MOT...LOC 0151Z 294DEG 21KT 4884 10193

$$

AYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 7:21 PM CDT	Areal Flood Advisory	BIS	Burke	2 hr
Jul 15, 7:28 PM CDT	Severe Thunderstorm Warning	BIS	Burke	62 min
Jul 15, 8:05 PM CDT	Tornado Warning	BIS	Burke, Renville	25 min
Jul 15, 8:59 PM CDT	Tornado Warning	BIS	Renville	15 min
Jul 16, 4:21 AM CDT	Dense Fog Advisory	BIS	Bottineau, Burke, Divide, McHenry, Mountrail, Pierce and 3 more	6 hr

Nearby

Tornado Warnings in North Dakota, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.