Alert archive / North Dakota / Tornado Warnings in 2015

Tornado Warning 13, NWS Bismarck, ND

July 23, 2015McLean County, Ward County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 23, 2015, 4:54 PM CDT for McLean County, Ward County, North Dakota. It was in force for 36 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 23, 2015, 4:54 PM CDT (21:54 UTC)
Expired: Jul 23, 2015, 5:30 PM CDT
In force: 36 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

Counties McLean County, ND, Ward County, ND

The radar

The Minot AFB radar (KMBX), 85 km from the middle of the area, began a volume at 21:54 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 23, 5:21 PM CDT	TSTM WND GST 70	1 E Douglas, ND	SOCIAL MEDIA REPORT AND VIDEO.

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 23, 3:58 PM CDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.9 hours before the alert went out and 134 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: 785 J/kg
Mixed-layer CIN: -292 J/kg
Mixed-layer LCL: 1367 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 158 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.

549 
WFUS53 KBIS 232154
TORBIS
NDC055-101-232230-
/O.NEW.KBIS.TO.W.0013.150723T2154Z-150723T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
454 PM CDT THU JUL 23 2015

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL WARD COUNTY IN NORTH CENTRAL NORTH DAKOTA...
  NORTH CENTRAL MCLEAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 530 PM CDT
    
* AT 454 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 6 MILES SOUTH OF RYDER...OR 17 MILES NORTHWEST
  OF GARRISON...MOVING EAST AT 10 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 DANGEROUS STORM WILL BE NEAR...
  DOUGLAS AROUND 530 PM CDT.

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 4775 10170 4785 10176 4797 10145 4772 10136
TIME...MOT...LOC 2154Z 253DEG 11KT 4783 10169 

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

$$

HARGROVE

2 follow-up statements

862 
WWUS53 KBIS 232211
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
511 PM CDT THU JUL 23 2015

NDC055-101-232230-
/O.CON.KBIS.TO.W.0013.000000T0000Z-150723T2230Z/
WARD ND-MCLEAN ND-
511 PM CDT THU JUL 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR SOUTH
CENTRAL WARD AND NORTH CENTRAL MCLEAN COUNTIES...
    
AT 511 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR DOUGLAS...OR 14 MILES NORTHWEST OF GARRISON...MOVING
EAST AT 15 MPH.

HAZARD...TORNADO AND PING PONG 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...
  DOUGLAS AROUND 530 PM CDT.

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 4776 10165 4786 10168 4797 10145 4772 10136
TIME...MOT...LOC 2211Z 262DEG 12KT 4782 10159 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

HARGROVE

004 
WWUS53 KBIS 232225
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
525 PM CDT THU JUL 23 2015

NDC055-101-232235-
/O.EXP.KBIS.TO.W.0013.000000T0000Z-150723T2230Z/
WARD ND-MCLEAN ND-
525 PM CDT THU JUL 23 2015

...THE TORNADO WARNING FOR SOUTH CENTRAL WARD AND NORTH CENTRAL
MCLEAN COUNTIES WILL EXPIRE AT 530 PM CDT...
    
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY
AND A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR
CENTRAL NORTH DAKOTA.

LAT...LON 4776 10165 4786 10168 4797 10145 4772 10136
TIME...MOT...LOC 2221Z 253DEG 11KT 4782 10159 

$$

HARGROVE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 4:26 PM CDT	Special Weather Statement	BIS	McLean, Ward	34 min
Jul 23, 4:45 PM CDT	Severe Thunderstorm Warning	BIS	Ward	60 min
Jul 23, 4:52 PM CDT	Severe Thunderstorm Warning	BIS	McLean	53 min
Jul 23, 5:15 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	60 min
Jul 23, 5:25 PM CDT	Special Weather Statement	BIS	Dunn	50 min
Jul 23, 5:27 PM CDT	Tornado Warning	BIS	McLean	33 min
Jul 23, 5:28 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	62 min
Jul 23, 5:33 PM CDT	Tornado Warning	BIS	McLean, Ward	27 min
Jul 23, 5:41 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Ward	64 min
Jul 23, 6:07 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	53 min
Jul 23, 6:55 PM CDT	Areal Flood Advisory	BIS	McHenry, McLean, Mercer, Ward	3 hr

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; radar from the NEXRAD Level II archive.