Alert archive / North Dakota / Tornado Warnings in 2015

Tornado Warning 16, NWS Bismarck, ND

July 26, 2015Mountrail County, Williams County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 26, 2015, 3:27 PM CDT for Mountrail County, Williams County, North Dakota. It was in force for 33 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 26, 2015, 3:27 PM CDT (20:27 UTC)
Expired: Jul 26, 2015, 4:00 PM CDT
In force: 33 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.25 in

Counties Mountrail County, ND, Williams County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 26, 3:43 PM CDT	HAIL 1.25	7 S Tioga, ND

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.5 hours before the alert went out and 227 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: 26 J/kg
Mixed-layer CIN: -422 J/kg
Mixed-layer LCL: 2000 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 29 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.

521 
WFUS53 KBIS 262027
TORBIS
NDC061-105-262100-
/O.NEW.KBIS.TO.W.0016.150726T2027Z-150726T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
327 PM CDT SUN JUL 26 2015

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL WILLIAMS COUNTY IN NORTHWESTERN NORTH DAKOTA...
  NORTHWESTERN MOUNTRAIL COUNTY IN NORTHWESTERN NORTH DAKOTA...

* UNTIL 400 PM CDT

* AT 326 PM CDT...A CONFIRMED TORNADO WAS LOCATED 13 MILES SOUTHEAST
  OF RAY...OR 27 MILES WEST OF STANLEY...MOVING NORTHEAST AT 25 MPH.

  HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

  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. 

* THE TORNADO WILL BE NEAR...
  TIOGA AROUND 355 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE WHITE
EARTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4827 10246 4813 10284 4813 10290 4814 10299
      4824 10309 4849 10283
TIME...MOT...LOC 2026Z 215DEG 24KT 4820 10297 

TORNADO...OBSERVED
HAIL...1.25IN

$$

HARGROVE

2 follow-up statements

521 
WWUS53 KBIS 262049
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
349 PM CDT SUN JUL 26 2015

NDC061-105-262100-
/O.CON.KBIS.TO.W.0016.000000T0000Z-150726T2100Z/
WILLIAMS ND-MOUNTRAIL ND-
349 PM CDT SUN JUL 26 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR EAST
CENTRAL WILLIAMS AND NORTHWESTERN MOUNTRAIL COUNTIES...
    
AT 348 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES SOUTHEAST OF TIOGA...OR 18 MILES WEST OF
STANLEY...MOVING NORTHEAST AT 35 MPH.

HAZARD...TORNADO AND HALF DOLLAR 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 TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
EAST CENTRAL WILLIAMS AND NORTHWESTERN MOUNTRAIL COUNTIES...INCLUDING
THE FOLLOWING LOCATIONS...WHITE EARTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4827 10246 4824 10285 4825 10294 4830 10302
      4849 10283
TIME...MOT...LOC 2048Z 229DEG 32KT 4833 10279 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

HARGROVE

064 
WWUS53 KBIS 262057
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
357 PM CDT SUN JUL 26 2015

NDC061-105-262106-
/O.EXP.KBIS.TO.W.0016.000000T0000Z-150726T2100Z/
WILLIAMS ND-MOUNTRAIL ND-
357 PM CDT SUN JUL 26 2015

...THE TORNADO WARNING FOR EAST CENTRAL WILLIAMS AND NORTHWESTERN
MOUNTRAIL COUNTIES WILL EXPIRE AT 400 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
IS STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHWESTERN NORTH DAKOTA.

LAT...LON 4827 10246 4824 10285 4825 10294 4830 10302
      4849 10283
TIME...MOT...LOC 2053Z 215DEG 24KT 4833 10279 

$$

HARGROVE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 7:30 PM CDT	Special Weather Statement	BIS	McLean	30 min
Jul 25, 7:46 PM CDT	Special Weather Statement	BIS	Oliver	29 min
Jul 25, 7:55 PM CDT	Special Weather Statement	BIS	McLean	35 min
Jul 25, 8:00 PM CDT	Severe Thunderstorm Warning	BIS	McLean	60 min
Jul 25, 8:30 PM CDT	Special Weather Statement	BIS	McHenry	45 min
Jul 25, 9:37 PM CDT	Special Weather Statement	BIS	Oliver	38 min
Jul 26, 3:08 PM CDT	Special Weather Statement	BIS	McKenzie, Mountrail	37 min
Jul 26, 3:10 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	49 min
Jul 26, 3:15 PM CDT	Special Weather Statement	BIS	Slope	45 min
Jul 26, 3:44 PM CDT	Severe Thunderstorm Warning	BIS	Slope	61 min
Jul 26, 3:58 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Williams	62 min
Jul 26, 4:07 PM CDT	Special Weather Statement	BIS	Billings, Dunn, McKenzie, Stark	38 min
Jul 26, 4:37 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	34 min
Jul 26, 4:45 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Renville	26 min
Jul 26, 5:10 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	65 min
Jul 26, 5:22 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	53 min
Jul 26, 5:23 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Stark	67 min
Jul 26, 5:33 PM CDT	Special Weather Statement	BIS	McLean	42 min
Jul 26, 5:40 PM CDT	Special Weather Statement	BIS	Rolette	50 min
Jul 26, 5:45 PM CDT	Special Weather Statement	BIS	Renville	30 min
Jul 26, 6:09 PM CDT	Special Weather Statement	BIS	Bottineau	36 min
Jul 26, 6:16 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Slope	59 min
Jul 26, 6:17 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	28 min
Jul 26, 6:41 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	64 min

Nearby

Tornado Warnings in North Dakota, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.