Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 16, NWS Grand Forks, ND

July 19, 2016Walsh County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 19, 2016, 6:45 PM CDT for Walsh County, North Dakota. It was in force for 45 min. 4 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: Jul 19, 2016, 6:45 PM CDT (23:45 UTC)
Expired: Jul 19, 2016, 7:30 PM CDT
In force: 45 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.5 in

County Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 88 km from the middle of the area, began a volume at 23:45 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 19, 7:05 PM CDT	TSTM WND GST 61	2 Ese Grafton, ND	PEAK WIND MEASURED AT THE GRAFTON AIRPORT /KGAF/.
Jul 19, 7:07 PM CDT	TSTM WND GST 70	Minto, ND	ESTIMATED BY FIREFIGHTERS IN TRUCK.
Jul 19, 7:13 PM CDT	TSTM WND GST 70	4 E Minto, ND
Jul 19, 7:30 PM CDT	TSTM WND GST 95	7 E Ardoch, ND	NUMEROUS TREES WERE SNAPPED OR UPROOTED ACROSS WALSHVILLE TOWNSHIP. AT LEAST ONE WOODEN POWER POLE WAS SNAPPED ALONG CR54 JUST WEST OF THE RED RIVER BRIDGE.

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 19, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.8 hours before the alert went out and 300 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: 2055 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 978 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.3

Open this sounding in Storm Lab

The text

As transmitted.

929 
WFUS53 KFGF 192345
TORFGF
NDC099-200030-
/O.NEW.KFGF.TO.W.0016.160719T2345Z-160720T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
645 PM CDT TUE JUL 19 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 730 PM CDT
    
* AT 645 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR GRAFTON...MOVING SOUTHEAST AT 20 MPH.

  HAZARD...TORNADO AND TENNIS 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...
  OAKWOOD AROUND 650 PM CDT. 
  VOSS AROUND 655 PM CDT. 
  MINTO AROUND 700 PM CDT. 
  WARSAW AROUND 715 PM CDT. 
  ARDOCH AROUND 720 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 162 AND 165.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
GRAND FORKS.

&&

LAT...LON 4838 9758 4843 9730 4820 9714 4820 9751
TIME...MOT...LOC 2345Z 314DEG 16KT 4837 9742 

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

HOPKINS

2 follow-up statements

684 
WWUS53 KFGF 200015
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
715 PM CDT TUE JUL 19 2016

NDC099-200030-
/O.CON.KFGF.TO.W.0016.000000T0000Z-160720T0030Z/
WALSH ND-
715 PM CDT TUE JUL 19 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN WALSH COUNTY...
    
AT 715 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER WARSAW...OR 11 MILES SOUTHEAST OF GRAFTON...MOVING
SOUTHEAST AT 20 MPH.

HAZARD...TORNADO AND TENNIS 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 TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN WALSH COUNTY.

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 162 AND 165.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4833 9747 4833 9723 4820 9714 4820 9745
TIME...MOT...LOC 0015Z 314DEG 16KT 4828 9728 

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

HOPKINS

918 
WWUS53 KFGF 200029
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
729 PM CDT TUE JUL 19 2016

NDC099-200038-
/O.EXP.KFGF.TO.W.0016.000000T0000Z-160720T0030Z/
WALSH ND-
729 PM CDT TUE JUL 19 2016

...THE TORNADO WARNING FOR SOUTHEASTERN WALSH COUNTY WILL EXPIRE AT
730 PM CDT...
    
THE TORNADO THREAT HAS DIMINISHED AND 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.
HOWEVER LARGE HAIL AND DAMAGING WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

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

LAT...LON 4833 9747 4833 9723 4820 9714 4820 9745
TIME...MOT...LOC 0028Z 314DEG 16KT 4828 9728 

$$

HOPKINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 12:41 PM CDT	Severe Thunderstorm Warning	FGF	Benson	64 min
Jul 19, 1:16 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	59 min
Jul 19, 3:53 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	67 min
Jul 19, 4:57 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	63 min
Jul 19, 5:24 PM CDT	Tornado Warning	FGF	Cavalier, Pembina	51 min
Jul 19, 6:12 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	63 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.