Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 53, NWS Grand Forks, ND

July 16, 2008Cavalier County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 16, 2008, 7:28 PM CDT for Cavalier County, North Dakota. It was in force for 47 min. 2 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 16, 2008, 7:28 PM CDT (00:28 UTC)
Expired: Jul 16, 2008, 8:15 PM CDT
In force: 47 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon

County Cavalier County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 16, 7:35 PM CDT	HAIL 0.88	5 W Hannah, ND
Jul 16, 8:00 PM CDT	FUNNEL CLOUD	Dresden, ND	PERSISTENT WALL CLOUD WITH FUNNEL VIEWED.

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, 0.5 hours before the alert went out and 276 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: 597 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1702 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KFGF 170028
TORFGF
NDC019-170115-
/O.NEW.KFGF.TO.W.0053.080717T0028Z-080717T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
728 PM CDT WED JUL 16 2008

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA...
  THIS INCLUDES THE CITY OF LANGDON...

* UNTIL 815 PM CDT

* AT 725 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES EAST OF
  SARLES...OR 26 MILES NORTHWEST OF LANGDON...MOVING TO THE SOUTHEAST
  AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  WALES AT 740 PM CDT...
  DRESDEN AT 750 PM CDT...
  LANGDON AT 800 PM CDT...
  7 MILES SOUTHWEST OF OSNABROCK AT 815 PM CDT...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

LAT...LON 4869 9802 4855 9869 4890 9900 4891 9900
      4899 9900 4901 9895 4901 9894 4901 9878
TIME...MOT...LOC 0028Z 308DEG 36KT 4892 9884

$$
SPEICHER

1 follow-up statement

000 
WWUS53 KFGF 170049
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
749 PM CDT WED JUL 16 2008

NDC019-170115-
/O.CON.KFGF.TO.W.0053.000000T0000Z-080717T0115Z/
CAVALIER ND-
749 PM CDT WED JUL 16 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR CAVALIER
COUNTY...

AT 743 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
4 MILES WEST OF WALES...OR 17 MILES NORTHWEST OF LANGDON...MOVING TO
THE SOUTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  DRESDEN BY 800 PM CDT...
  LANGDON BY 810 PM CDT...

DO NOT OUTRUN A TORNADO IN YOUR CAR. LEAVE YOUR CAR AND GO TO A
STRONG BUILDING OR SEEK SHELTER IN A DITCH OR LOW SPOT.

LAT...LON 4872 9810 4862 9831 4863 9833 4859 9853
      4888 9889 4899 9874
TIME...MOT...LOC 0049Z 304DEG 34KT 4886 9862

$$

PJS/TG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 7:07 PM CDT	Tornado Warning	FGF	Cavalier, Pembina	38 min
Jul 16, 7:16 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	59 min
Jul 16, 7:38 PM CDT	Tornado Warning	FGF	Pembina	67 min
Jul 16, 8:07 PM CDT	Tornado Warning	FGF	Cavalier	19 min
Jul 16, 8:39 PM CDT	Tornado Warning	FGF	Pembina, Walsh	51 min

Nearby

Tornado Warnings in North Dakota, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.