Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 14, NWS Grand Forks, ND

July 9, 2016Eddy County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 9, 2016, 8:25 PM CDT for Eddy County, North Dakota. It was in force for 20 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 9, 2016, 8:25 PM CDT (01:25 UTC)
Expired: Jul 9, 2016, 8:45 PM CDT
In force: 20 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Eddy County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 145 km from the middle of the area, began a volume at 01:29 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 9, 8:32 PM CDT	HAIL 1.5	8 Sw New Rockford, ND	HAIL OF NICKEL SIZED OR LARGER FELL BETWEEN 830 AND 835 PM CDT.

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 00:00Z, 1.4 hours before the alert went out and 146 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: 3085 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1729 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 20.1

Open this sounding in Storm Lab

The text

As transmitted.

829 
WFUS53 KFGF 100125
TORFGF
NDC027-100145-
/O.NEW.KFGF.TO.W.0014.160710T0125Z-160710T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
825 PM CDT SAT JUL 9 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN EDDY COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 845 PM CDT
    
* AT 824 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR CATHAY...OR 41 MILES SOUTHWEST OF DEVILS
  LAKE... MOVING SOUTHEAST AT 35 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTHWESTERN EDDY COUNTY.

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 4768 9929 4759 9912 4759 9926 4762 9927
      4766 9928 4767 9928
TIME...MOT...LOC 0124Z 323DEG 32KT 4759 9934 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

KNUTSVIG

1 follow-up statement

327 
WWUS53 KFGF 100142
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
842 PM CDT SAT JUL 9 2016

NDC027-100152-
/O.EXP.KFGF.TO.W.0014.000000T0000Z-160710T0145Z/
EDDY ND-
842 PM CDT SAT JUL 9 2016

...THE TORNADO WARNING FOR SOUTHWESTERN EDDY COUNTY WILL EXPIRE AT
845 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4768 9929 4759 9912 4759 9926 4762 9927
      4766 9928 4767 9928
TIME...MOT...LOC 0140Z 323DEG 32KT 4759 9934 

$$

KNUTSVIG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:30 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill, Walsh	60 min
Jul 9, 8:09 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	66 min
Jul 9, 8:31 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Traill	44 min
Jul 9, 8:49 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	41 min
Jul 9, 9:08 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	52 min
Jul 9, 9:25 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele	50 min
Jul 9, 9:30 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Steele, Traill	45 min
Jul 9, 10:13 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	62 min
Jul 9, 11:09 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	66 min
Jul 9, 11:13 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	62 min
Jul 10, 12:02 AM CDT	Severe Thunderstorm Warning	FGF	Richland	58 min
Jul 10, 12:11 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	64 min
Jul 10, 12:46 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	59 min
Jul 10, 1:10 AM CDT	Flash Flood Warning	FGF	Richland	8 hr
Jul 10, 1:41 AM CDT	Severe Thunderstorm Warning	FGF	Richland	42 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.