Alert archive / North Dakota / Tornado Warnings in 2014

Tornado Warning 30, NWS Bismarck, ND

July 22, 2014Bowman County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 22, 2014, 4:51 PM MDT for Bowman County, North Dakota. It was in force for 24 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 22, 2014, 4:51 PM MDT (22:51 UTC)
Expired: Jul 22, 2014, 5:15 PM MDT
In force: 24 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.5 in

County Bowman County, ND

The radar

The Rapid City radar (KUDX), 234 km from the middle of the area, began a volume at 22:55 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

Time	Report	Where	Remark
Jul 22, 5:00 PM MDT	HAIL 4.5	1 E Sunset Butte, ND

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 22, 2:57 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 10.9 hours before the alert went out and 238 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: 118 J/kg
Mixed-layer CIN: -369 J/kg
Mixed-layer LCL: 1931 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 94 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.

771 
WFUS53 KBIS 222251
TORBIS
NDC011-222315-
/O.NEW.KBIS.TO.W.0030.140722T2251Z-140722T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
451 PM MDT TUE JUL 22 2014

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL BOWMAN COUNTY IN SOUTHWEST NORTH DAKOTA...

* UNTIL 515 PM MDT

* AT 450 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 8 MILES SOUTH OF MARMARTH...OR 26 MILES WEST OF
  BOWMAN...AND MOVING SOUTHEAST AT 25 MPH.

  HAZARD...TORNADO AND TENNIS BALL SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
           TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
  MUD BUTTES AROUND 515 PM MDT.

OTHER LOCATIONS IN THE WARNING INCLUDE SUNSET BUTTE.

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 4610 10364 4598 10378 4616 10401 4622 10392
TIME...MOT...LOC 2252Z 310DEG 23KT 4617 10392

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

JONES

2 follow-up statements

138 
WWUS53 KBIS 222309
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
609 PM CDT TUE JUL 22 2014

NDC011-222315-
/O.CON.KBIS.TO.W.0030.000000T0000Z-140722T2315Z/
BOWMAN ND-
509 PM MDT TUE JUL 22 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL BOWMAN COUNTY
UNTIL 515 PM MDT...

AT 507 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES NORTH OF MUD BUTTES...OR 21 MILES WEST OF
BOWMAN...MOVING SOUTHEAST AT 25 MPH.

HAZARD...TORNADO AND TENNIS BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION. OBSERVERS REPORT RAPIDLY ROTATING 
         WALL CLOUD WITH THIS STORM.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

THIS DANGEROUS STORM WILL BE NEAR...
  MUD BUTTES AROUND 515 PM MDT.

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 4610 10364 4598 10378 4611 10394 4619 10385
TIME...MOT...LOC 2309Z 310DEG 23KT 4610 10380

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

JONES

083 
WWUS53 KBIS 222317
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
617 PM CDT TUE JUL 22 2014

NDC011-222327-
/O.EXP.KBIS.TO.W.0030.000000T0000Z-140722T2315Z/
BOWMAN ND-
517 PM MDT TUE JUL 22 2014

...THE TORNADO WARNING FOR WEST CENTRAL BOWMAN COUNTY HAS EXPIRED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

LAT...LON 4610 10364 4598 10378 4611 10394 4619 10385
TIME...MOT...LOC 2309Z 310DEG 23KT 4610 10380

$$

JONES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 6:14 PM MDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	42 min
Jul 21, 6:33 PM MDT	Special Weather Statement	BIS	Dickey, LaMoure	42 min
Jul 21, 7:05 PM MDT	Special Weather Statement	BIS	Dickey	25 min
Jul 22, 4:18 PM MDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	57 min
Jul 22, 4:34 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	56 min
Jul 22, 5:13 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	32 min
Jul 22, 5:54 PM MDT	Special Weather Statement	BIS	Bowman, Slope	36 min

Nearby

Tornado Warnings in North Dakota, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.