Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 27, NWS Bismarck, ND

August 10, 2016Morton County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 10, 2016, 8:10 PM CDT for Morton County, North Dakota. It was in force for 35 min. 5 reports 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: Aug 10, 2016, 8:10 PM CDT (01:10 UTC)
Expired: Aug 10, 2016, 8:45 PM CDT
In force: 35 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.75 in

County Morton County, ND

The radar

The Bismarck radar (KBIS), 90 km from the middle of the area, began a volume at 01:12 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
Aug 10, 8:22 PM CDT	HAIL 2.5	7 Ene Hebron, ND	ONGOING AT THE TIME OF CALL.
Aug 10, 8:30 PM CDT	TSTM WND GST 67	1 W Glen Ullin, ND	GLEN ULLIN AIRPORT OBSERVATION... PEAK GUST.
Aug 10, 8:30 PM CDT	TSTM WND GST 67	1 Wnw Glen Ullin, ND	GLEN ULLIN AIRPORT OBSERVATION... PEAK GUST.
Aug 10, 8:35 PM CDT	TSTM WND GST 75	4 Ne Glen Ullin, ND	70-75 MPH WINDS ESTIMATED AT THE HIGHWAY 49 EXIT ON INTERSTATE 94 NEAR GLEN ULLIN. ZERO VISIBILITY IN THE HIGH WIND AND HEAVY RAIN.
Aug 10, 8:46 PM CDT	HAIL 3	8 Ne Glen Ullin, ND	REPORT RELAYED VIA SOCIAL MEDIA PICTURE. TIME ESTIMATED FROM RADAR.

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
Aug 10, 5:59 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.2 hours before the alert went out and 94 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: 1983 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 863 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

As transmitted.

973 
WFUS53 KBIS 110110
TORBIS
NDC059-110145-
/O.NEW.KBIS.TO.W.0027.160811T0110Z-160811T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
810 PM CDT WED AUG 10 2016

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 845 PM CDT
    
* AT 810 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR HEBRON...OR 10 MILES NORTHWEST OF GLEN
  ULLIN... MOVING EAST AT 35 MPH.

  HAZARD...TORNADO AND BASEBALL 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...
  GLEN ULLIN AROUND 825 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 4685 10210 4689 10210 4698 10207 4698 10156
      4674 10163
TIME...MOT...LOC 0110Z 283DEG 32KT 4693 10198 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

AYD

1 follow-up statement

437 
WWUS53 KBIS 110117
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
817 PM CDT WED AUG 10 2016

NDC059-110145-
/O.CON.KBIS.TO.W.0027.000000T0000Z-160811T0145Z/
MORTON ND-
817 PM CDT WED AUG 10 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
NORTHWESTERN MORTON COUNTY...
    
AT 817 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES NORTHWEST OF GLEN ULLIN...MOVING EAST AT 40 MPH.

HAZARD...TORNADO AND BASEBALL 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
NORTHWESTERN MORTON COUNTY.

LAT...LON 4683 10202 4698 10199 4698 10156 4674 10163
TIME...MOT...LOC 0117Z 285DEG 33KT 4689 10188 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

AYD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 7:31 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	59 min
Aug 10, 7:39 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Stark	66 min
Aug 10, 7:43 PM CDT	Tornado Warning	BIS	Morton, Stark	32 min
Aug 10, 8:22 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	53 min
Aug 10, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	45 min
Aug 10, 9:35 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Oliver	55 min
Aug 10, 10:29 PM CDT	Areal Flood Advisory	BIS	Foster, Wells	6 hr
Aug 10, 11:17 PM CDT	Special Weather Statement	BIS	Divide	28 min
Aug 10, 11:24 PM CDT	Special Weather Statement	BIS	Williams	36 min
Aug 10, 11:28 PM CDT	Special Weather Statement	BIS	Williams	32 min
Aug 10, 11:51 PM CDT	Areal Flood Warning	BIS	Dickey	36 hr
Aug 10, 11:52 PM CDT	Special Weather Statement	BIS	Williams	38 min
Aug 10, 11:59 PM CDT	Special Weather Statement	BIS	Divide	46 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.