Alert archive / North Dakota / Tornado Warnings in 2017

Tornado Warning 3, NWS Bismarck, ND

June 29, 2017McLean County, Mountrail County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 29, 2017, 3:56 PM CDT for McLean County, Mountrail County, North Dakota. It was in force for 34 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: Jun 29, 2017, 3:56 PM CDT (20:56 UTC)
Expired: Jun 29, 2017, 4:30 PM CDT
In force: 34 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties McLean County, ND, Mountrail County, ND

The radar

The Minot AFB radar (KMBX), 108 km from the middle of the area, began a volume at 20:59 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
Jun 29, 4:23 PM CDT	FUNNEL CLOUD	Parshall, ND	AN AMBULANCE CREW REPORTED TWO FUNNEL CLOUDS IN THE VICINITY OF PARSHALL. THE FUNNEL CLOUDS WERE VISIBLE NEAR PARSHALL AROUND 423 PM CDT. OTHER SPOTTERS REPORTED A ROTATING WALL CLOUD BEFORE AND DURING THAT TIME. PEA SIZE HAIL AND 40 MPH WINDS WERE ALSO REPORT

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, 8.9 hours before the alert went out and 161 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: 27 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1750 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

507 
WFUS53 KBIS 292056
TORBIS
NDC055-061-292145-
/O.NEW.KBIS.TO.W.0003.170629T2056Z-170629T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
356 PM CDT THU JUN 29 2017

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  Northwestern McLean County in south central North Dakota...
  Southeastern Mountrail County in northwestern North Dakota...

* Until 445 PM CDT
    
* At 355 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Van Hook Park, or 25 miles south of Stanley,
  moving southeast at 15 mph.

  HAZARD...Tornado. 

  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...
  Parshall around 405 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Deep
Water Creek Recreation Area, Parshall Bay Recreation Area and Raub.

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 4782 10184 4767 10219 4799 10240 4806 10220
TIME...MOT...LOC 2055Z 328DEG 14KT 4796 10225 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

EDWARDS/HAMILTON

3 follow-up statements

597 
WWUS53 KBIS 292108
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
408 PM CDT THU JUN 29 2017

NDC055-061-292145-
/O.CON.KBIS.TO.W.0003.000000T0000Z-170629T2145Z/
McLean ND-Mountrail ND-
408 PM CDT THU JUN 29 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHWESTERN MCLEAN AND SOUTHEASTERN MOUNTRAIL COUNTIES...
    
At 404 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 4 miles west of Parshall, or 28 miles south of Stanley, 
moving southeast at 15 mph.

HAZARD...Tornado. 

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...
  Rural areas of far southern Mountrail County through 430 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Deep
Water Creek Recreation Area, Parshall Bay Recreation Area and Raub.

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.

If on or near Van Hook Arm, get away from the water and move to safe 
shelter immediately. Very heavy rain producing low visibility with 
this storm can also be expected.

&&

LAT...LON 4782 10184 4767 10219 4796 10237 4803 10216
TIME...MOT...LOC 2104Z 328DEG 14KT 4793 10222 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

EDWARDS/HAMILTON

285 
WWUS53 KBIS 292123
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
423 PM CDT THU JUN 29 2017

NDC055-061-292145-
/O.CON.KBIS.TO.W.0003.000000T0000Z-170629T2145Z/
McLean ND-Mountrail ND-
423 PM CDT THU JUN 29 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHWESTERN MCLEAN AND SOUTHEASTERN MOUNTRAIL COUNTIES...
    
At 421 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Parshall, or 35 miles south of Stanley,
moving southeast at 20 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern McLean and southeastern Mountrail Counties, including
the following locations: Deep Water Creek Recreation Area and Raub.

Storm spotters continue to indicate a rotating wall cloud with this 
storm along the McLean and Mountrail county line.

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 4782 10184 4767 10219 4789 10231 4796 10208
TIME...MOT...LOC 2121Z 330DEG 17KT 4783 10215 

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

$$

EDWARDS/HAMILTON

333 
WWUS53 KBIS 292130
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
430 PM CDT THU JUN 29 2017

NDC055-061-292140-
/O.CAN.KBIS.TO.W.0003.000000T0000Z-170629T2145Z/
McLean ND-Mountrail ND-
430 PM CDT THU JUN 29 2017

...THE TORNADO WARNING FOR NORTHWESTERN MCLEAN AND SOUTHEASTERN
MOUNTRAIL COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 4782 10184 4767 10219 4789 10231 4796 10208
TIME...MOT...LOC 2129Z 328DEG 14KT 4780 10212 

$$

EDWARDS/HAMILTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 12:54 PM CDT	Special Weather Statement	BIS	McHenry	51 min
Jun 29, 2:10 PM CDT	Special Weather Statement	BIS	Mountrail	50 min
Jun 29, 2:59 PM CDT	Special Weather Statement	BIS	Mountrail	46 min
Jun 29, 3:24 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	66 min
Jun 29, 3:46 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	39 min
Jun 29, 5:01 PM CDT	Special Weather Statement	BIS	McLean	44 min
Jun 29, 5:42 PM CDT	Special Weather Statement	BIS	Mercer, Oliver	48 min
Jun 29, 5:45 PM CDT	Special Weather Statement	BIS	Renville	45 min

Nearby

Tornado Warnings in North Dakota, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.