Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 22, NWS Bismarck, ND

July 20, 2016Sheridan County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 20, 2016, 8:44 PM CDT for Sheridan County, North Dakota. It was in force for 31 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 20, 2016, 8:44 PM CDT (01:44 UTC)
Expired: Jul 20, 2016, 9:15 PM CDT
In force: 31 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Sheridan County, ND

The radar

The Minot AFB radar (KMBX), 90 km from the middle of the area, began a volume at 01:44 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 20, 9:25 PM CDT	HAIL 1	6 N Mcclusky, 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 20, 4:01 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.7 hours before the alert went out and 98 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: 4358 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1684 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

269 
WFUS53 KBIS 210144
TORBIS
NDC083-210215-
/O.NEW.KBIS.TO.W.0022.160721T0144Z-160721T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
844 PM CDT WED JUL 20 2016

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL SHERIDAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 915 PM CDT
    
* AT 844 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 10 MILES NORTHEAST OF MERCER...OR 12 MILES
  NORTHWEST OF MCCLUSKY...MOVING EAST AT 15 MPH.

  HAZARD...TORNADO AND QUARTER 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...
  MCCLUSKY AROUND 915 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE HOFFER
LAKE AND SHEYENNE LAKE.

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 4769 10012 4742 10037 4756 10067 4767 10067
      4767 10059 4772 10058
TIME...MOT...LOC 0144Z 288DEG 14KT 4763 10062 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HARGROVE

2 follow-up statements

700 
WWUS53 KBIS 210159
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
859 PM CDT WED JUL 20 2016

NDC083-210215-
/O.CON.KBIS.TO.W.0022.000000T0000Z-160721T0215Z/
SHERIDAN ND-
859 PM CDT WED JUL 20 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR CENTRAL
SHERIDAN COUNTY...
    
AT 859 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 9 MILES NORTHWEST OF MCCLUSKY...MOVING EAST AT 15 MPH.

HAZARD...TORNADO AND QUARTER 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...
  MCCLUSKY AROUND 915 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE HOFFER
LAKE.

LAT...LON 4742 10037 4756 10065 4767 10060 4767 10059
      4765 10016
TIME...MOT...LOC 0159Z 288DEG 14KT 4761 10054 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HARGROVE

064 
WWUS53 KBIS 210210
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
910 PM CDT WED JUL 20 2016

NDC083-210219-
/O.EXP.KBIS.TO.W.0022.000000T0000Z-160721T0215Z/
SHERIDAN ND-
910 PM CDT WED JUL 20 2016

...THE TORNADO WARNING FOR CENTRAL SHERIDAN COUNTY WILL EXPIRE AT 915
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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
SOUTH CENTRAL NORTH DAKOTA.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
CENTRAL SHERIDAN AND WESTERN WELLS COUNTIES.

LAT...LON 4742 10037 4756 10065 4767 10060 4767 10059
      4765 10016
TIME...MOT...LOC 0209Z 288DEG 14KT 4761 10054 

$$

HARGROVE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	23 min
Jul 20, 7:12 PM CDT	Severe Thunderstorm Warning	BIS	Rolette	44 min
Jul 20, 7:25 PM CDT	Severe Thunderstorm Warning	BIS	Grant	49 min
Jul 20, 7:41 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	64 min
Jul 20, 7:48 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	42 min
Jul 20, 7:56 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	64 min
Jul 20, 8:23 PM CDT	Special Weather Statement	BIS	Grant	37 min
Jul 20, 8:27 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Oliver	48 min
Jul 20, 8:30 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	60 min
Jul 20, 8:39 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	43 min
Jul 20, 9:08 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	67 min
Jul 20, 9:09 PM CDT	Areal Flood Advisory	BIS	Oliver	3 hr
Jul 20, 9:17 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	58 min
Jul 20, 9:27 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	33 min
Jul 20, 10:00 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Foster, Kidder, Sheridan, Stutsman, Wells	60 min
Jul 20, 10:39 PM CDT	Special Weather Statement	BIS	Oliver	51 min
Jul 20, 10:58 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	40 min

Nearby

Tornado Warnings in North Dakota, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.