Alert archive / North Dakota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 13, NWS Bismarck, ND

June 9, 2017McHenry County, Pierce County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 9, 2017, 6:26 PM CDT for McHenry County, Pierce County, North Dakota. It was in force for 64 min. 8 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: Jun 9, 2017, 6:26 PM CDT (23:26 UTC)
Expired: Jun 9, 2017, 7:30 PM CDT
In force: 64 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 2.0 in
Wind: 70.0 mph

Counties McHenry County, ND, Pierce County, ND

The radar

The Minot AFB radar (KMBX), 59 km from the middle of the area, began a volume at 23:25 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 9, 6:27 PM CDT	TSTM WND GST 85	3 E Towner, ND
Jun 9, 6:30 PM CDT	TSTM WND GST 60	2 Ne Towner, ND	PEA SIZE HAIL AND HEAVY RAIN.
Jun 9, 6:37 PM CDT	TSTM WND GST 83	6 W Rugby, ND	DIME SIZED HAIL AS WELL.
Jun 9, 6:40 PM CDT	TSTM WND GST 104	3 W Rugby, ND
Jun 9, 6:45 PM CDT	TSTM WND GST 70	Rugby, ND	1.17 INCHES OF RAIN FELL WITHIN 10 MINUTES. LARGEST HAIL WAS PEA SIZE.
Jun 9, 6:53 PM CDT	TSTM WND GST 70	1 S Rugby, ND	SMALL TREE LIMBS RIPPED ALONG HIGHWAY 2.
Jun 9, 6:53 PM CDT	TSTM WND GST 70	1 Ssw Rugby, ND	SMALL TREE LIMBS RIPPED ALONG HIGHWAY 2.
Jun 9, 7:00 PM CDT	TSTM WND GST 80	Rugby, ND	REPORT FROM A TRAINED SPOTTER THAT FRIENDS OF HIS WERE TRAVELLING THROUGH RUGBY AROUND 7PM CDT, AND EXPERIENCED TORNADIC LIKE WINDS, APPROXIMATELY 80 MPH.

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
Jun 9, 4:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 174 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1764 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 310 m²/s²
0-3 km storm-relative helicity: 390 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

308 
WUUS53 KBIS 092326
SVRBIS
NDC049-069-100030-
/O.NEW.KBIS.SV.W.0013.170609T2326Z-170610T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
626 PM CDT FRI JUN 9 2017

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  West central Pierce County in north central North Dakota...
  East central McHenry County in north central North Dakota...

* Until 730 PM CDT

* At 626 PM CDT, a severe thunderstorm was located 6 miles southeast
  of Towner, or 15 miles southwest of Rugby, moving east at 45 mph.

  HAZARD...Two inch hail and 70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings. 

* This severe thunderstorm will be near,
  Balta around 645 PM CDT. 

Other locations impacted by this severe thunderstorm include Silva
and Berwick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe 
weather including extremely tornadoes. Move quickly to a safe 
shelter such as an interior room, a bathroom, closet or basement.

&&

LAT...LON 4837 9985 4812 9985 4813 10044 4838 10043
TIME...MOT...LOC 2326Z 275DEG 38KT 4828 10030 

HAIL...2.00IN
WIND...70MPH
 
$$

SIMOSKO

2 follow-up statements

703 
WWUS53 KBIS 092331
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
631 PM CDT FRI JUN 9 2017

NDC049-069-100030-
/O.CON.KBIS.SV.W.0013.000000T0000Z-170610T0030Z/
Pierce ND-McHenry ND-
631 PM CDT FRI JUN 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WEST CENTRAL PIERCE AND EAST CENTRAL MCHENRY COUNTIES...

At 630 PM CDT, a severe thunderstorm was located 9 miles southeast of
Towner, or 12 miles southwest of Rugby, moving east at 45 mph.

This is a very dangerous storm.

HAZARD...90 mph wind gusts and two inch hail. 

SOURCE...Radar indicated. 

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages. 

This severe storm will be near...
  Balta around 645 PM CDT. 

Other locations impacted by this severe thunderstorm include Silva
and Berwick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe 
weather including tornadoes. Move quickly to a safe shelter, such as 
an interior room, a bathroom or closet or basement.

&&

LAT...LON 4837 9985 4812 9985 4813 10044 4838 10043
TIME...MOT...LOC 2330Z 275DEG 38KT 4828 10022 

HAIL...2.00IN
WIND...90MPH
 
$$

SIMOSKO

203 
WWUS53 KBIS 092353
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
653 PM CDT FRI JUN 9 2017

NDC049-100003-
/O.CAN.KBIS.SV.W.0013.000000T0000Z-170610T0030Z/
McHenry ND-
653 PM CDT FRI JUN 9 2017

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MCHENRY COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until midnight CDT for
north central North Dakota.

LAT...LON 4837 9985 4812 9985 4813 10017 4837 10017
TIME...MOT...LOC 2353Z 266DEG 33KT 4828 10000 

$$

NDC069-100030-
/O.CON.KBIS.SV.W.0013.000000T0000Z-170610T0030Z/
Pierce ND-
653 PM CDT FRI JUN 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WEST CENTRAL PIERCE COUNTY...

At 653 PM CDT, a severe thunderstorm was located 6 miles south of
Rugby, moving east at 40 mph.

This is a very dangerous storm.

HAZARD...90 mph wind gusts and two inch hail. 

SOURCE...Radar indicated. 

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be heavily damaged or destroyed. Homes and businesses 
         will have substantial roof and window damage. Expect 
         extensive tree damage and power outages. 

this severe thunderstorm will remain over mainly rural areas of west
central Pierce County, including the following locations: Silva.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This thunderstorm is capable of producing all types of severe 
weather including tornadoes. Move quickly to a safe shelter, such as 
an interior room, a bathroom or closet or basement.

&&

LAT...LON 4837 9985 4812 9985 4813 10017 4837 10017
TIME...MOT...LOC 2353Z 266DEG 33KT 4828 10000 

HAIL...2.00IN
WIND...90MPH
 
$$

SIMOSKO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 4:12 AM CDT	Special Weather Statement	BIS	Renville	33 min
Jun 9, 4:35 PM CDT	Special Weather Statement	BIS	Sheridan	25 min
Jun 9, 4:43 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	62 min
Jun 9, 4:53 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville, Ward	67 min
Jun 9, 5:22 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan	38 min
Jun 9, 5:34 PM CDT	Tornado Warning Tornado observed	BIS	McHenry	7 min
Jun 9, 5:44 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan	61 min
Jun 9, 5:58 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce	62 min
Jun 9, 6:31 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	59 min
Jun 9, 6:40 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	65 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2017 Every severe thunderstorm warning 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.