Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 23, NWS Grand Forks, ND

August 3, 2016Cavalier County, Towner County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Aug 3, 2016, 6:14 PM CDT for Cavalier County, Towner County, North Dakota. It was in force for 46 min. 7 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 3, 2016, 6:14 PM CDT (23:14 UTC)
Expired
Aug 3, 2016, 7:00 PM CDT
In force
46 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

Counties Cavalier County, ND, Towner County, ND

The radar

The Minot AFB radar (KMBX), 125 km from the middle of the area, began a volume at 23:17 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

TimeReportWhereRemark
Aug 3, 6:23 PM CDTTSTM WND DMG6 Ene Bisbee, NDPOWER LINES DOWN AND LOWER POLE SNAPPED ALONG HWY 281... 1 TO 2 MILES NORTH OF INTERSECTION WITH HWY 66. VIDEO AND REPORTS POSTED VIA SOCIAL MEDIA.
Aug 3, 6:30 PM CDTTSTM WND GST 902 N Egeland, NDNUMEROUS POPLAR AND PINE TREES WERE SNAPPED OR UPROOTED AT FARMSTEAD AND SHELTER BELTS ACROSS CROCUS AND TWIN HILL TOWNSHIPS. LARGE 1200 LB HAY BALES WERE BLOWN AROSS A ROAD.
Aug 3, 6:40 PM CDTHAIL 2.754 W Bisbee, NDLARGE HAIL ALONG HIGHWAY 66. TIME ESTIMATED BASED ON RADAR.
Aug 3, 6:45 PM CDTHAIL 2.754 W Bisbee, NDLARGE HAIL ALONG HIGHWAY 66.
Aug 3, 6:47 PM CDTHAIL 1.55 Ese Egeland, NDLARGE HAIL AND VERY STRONG WINDS ACROSS NORTHERN VICTOR TOWNSHIP.
Aug 3, 6:52 PM CDTTSTM WND DMG2 Sw Munich, NDNUMEROUS LARGE TREE BRANCHES AND LIMBS BROKEN DOWN IM SHELTER BELTS ACROSS TRIER AND SEIVERT TOWNSHIPS.
Aug 3, 6:55 PM CDTTSTM WND GST 604 N Cando, NDMEASURED BY MOBILE EQUIPMENT.

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.

IssuedProductOfficeLasted
Aug 3, 3:38 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.2 hours before the alert went out and 245 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2016-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2016-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
58 J/kg
Mixed-layer CIN
-522 J/kg
Mixed-layer LCL
1927 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

664 
WFUS53 KFGF 032314
TORFGF
NDC019-095-040000-
/O.NEW.KFGF.TO.W.0023.160803T2314Z-160804T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
614 PM CDT WED AUG 3 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL TOWNER COUNTY IN NORTHEASTERN NORTH DAKOTA...
  SOUTHWESTERN CAVALIER COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 700 PM CDT
    
* AT 614 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ARNDT...OR 43 MILES WEST OF
  LANGDON...MOVING EAST AT 20 MPH.

  HAZARD...TORNADO AND HAIL UP TO TWO INCHES IN DIAMETER. 

  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...
  ARNDT AROUND 620 PM CDT. 
  ROCKLAKE AROUND 625 PM CDT. 
  EGELAND AROUND 640 PM CDT. 
  MUNICH...CLYDE AND CALIO AROUND 700 PM CDT. 

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 4895 9895 4858 9880 4851 9950 4872 9949
      4872 9952 4876 9953
TIME...MOT...LOC 2314Z 263DEG 19KT 4868 9931 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

JAM
2 follow-up statements
259 
WWUS53 KFGF 032335
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
635 PM CDT WED AUG 3 2016

NDC019-095-040000-
/O.CON.KFGF.TO.W.0023.000000T0000Z-160804T0000Z/
TOWNER ND-CAVALIER ND-
635 PM CDT WED AUG 3 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CENTRAL
TOWNER AND SOUTHWESTERN CAVALIER COUNTIES...
    
AT 632 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR EGELAND...OR 32 MILES WEST OF LANGDON...MOVING EAST
AT 35 MPH. A SECOND STORM LOCATED NEAR BISBEE HAS SHOWN SIGNS OF
ROTATION...AND IS MOVING EASTWARD.  


HAZARD...TORNADO AND PING PONG 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...
  CALIO AROUND 645 PM CDT. 
  MUNICH AND CLYDE AROUND 650 PM CDT. 

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 4895 9895 4858 9880 4851 9950 4872 9949
      4872 9952 4876 9953
TIME...MOT...LOC 2332Z 260DEG 29KT 4870 9908 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

JAM
599 
WWUS53 KFGF 032353
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
653 PM CDT WED AUG 3 2016

NDC019-095-040002-
/O.EXP.KFGF.TO.W.0023.000000T0000Z-160804T0000Z/
TOWNER ND-CAVALIER ND-
653 PM CDT WED AUG 3 2016

...THE TORNADO WARNING FOR CENTRAL TOWNER AND SOUTHWESTERN CAVALIER
COUNTIES WILL EXPIRE AT 700 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 SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

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

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

LAT...LON 4895 9895 4858 9880 4851 9950 4872 9949
      4872 9952 4876 9953
TIME...MOT...LOC 2351Z 263DEG 19KT 4870 9908 

$$

JAM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:30 PM CDTSevere Thunderstorm WarningFGFBenson, Towner60 min
Aug 3, 5:17 PM CDTSevere Thunderstorm WarningFGFCavalier, Towner58 min
Aug 3, 5:31 PM CDTTornado WarningFGFTowner44 min
Aug 3, 6:43 PM CDTTornado WarningFGFCavalier, Towner47 min
Aug 3, 6:48 PM CDTSevere Thunderstorm WarningFGFBenson, Cavalier, Ramsey, Towner42 min

Nearby

Tornado Warnings in North Dakota, 2016Every tornado warning in 2016Tornadoes 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.