Alert archive / North Dakota / Tornado Warnings in 2007

Tornado Warning 26, NWS Grand Forks, ND

July 15, 2007Ransom County, Richland County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 15, 2007, 7:58 PM CDT for Ransom County, Richland County, North Dakota. It was in force for 23 min. 6 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 15, 2007, 7:58 PM CDT (00:58 UTC)
Expired: Jul 15, 2007, 8:21 PM CDT
In force: 23 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

Counties Ransom County, ND, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 123 km from the middle of the area, began a volume at 01:01 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 15, 8:00 PM CDT	TSTM WND DMG	4 Nw Mcleod, ND	EXTENSIVE DAMAGE REPORTED ALONG 63RD STREET AND 147TH AVE SE IN OWEGO TWP. 1 TO 2 FT DIAMETER TREES UPROOTED AND TWISTED. CORN FIELD DESTROYED AND GRAIN BINS DAMAGED.
Jul 15, 8:00 PM CDT	HAIL 1.75	Mcleod, ND
Jul 15, 8:10 PM CDT	TSTM WND DMG	Mcleod, ND	LARGE TREES ON HOMES 1 TO 3 FT DIAMETER TREES DOWN IN TOWN AND GRAIN BIN PARTS SCATTERED IN TOWN. UNSURE IF TORNADO RELATED OR NOT. DAMAGE PATH IS WIDE.
Jul 15, 8:10 PM CDT	TSTM WND GST 82	Mcleod, ND	REPORTED BY STORM CHASER WITH PORTABLE WIND EQUIPMENT.
Jul 15, 8:10 PM CDT	TSTM WND GST 82	Mcleod, ND	REPORTED BY STORM CHASER WITH PORTABLE WIND EQUIPMENT. LARGE TREES 1 TO 3 FT DIAMETER DOWN IN TOWN AND GRAIN BIN PARTS SCATTERED IN TOWN.
Jul 15, 8:12 PM CDT	TSTM WND GST 80	9 Nw Wyndmere, ND	LOCATED 2 EAST OF MCLEOD. SIDING PEELED OFF HOUSE... TRAMPOLINE WRAPPED AROUND TREE AND LARGE BRANCHES BROKEN OFF.

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 15, 5:49 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.0 hours before the alert went out and 193 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: 2083 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFGF 160100
TORFGF
NDC073-077-160145-
/O.NEW.KFGF.TO.W.0026.070716T0058Z-070716T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
758 PM CDT SUN JUL 15 2007

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA...
  WEST CENTRAL RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 845 PM CDT

* AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MCLEOD...OR
  34 MILES WEST OF WAHPETON...MOVING TO THE SOUTH AT 30 MPH.

  THIS STORM HAS A HISTORY OF PRODUCING STRONG DAMAGING WINDS AND    
  LARGE HAIL.

* THE TORNADO WILL BE NEAR...
  WYNDMERE AT 815 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY
MORNING FOR NORTHWESTERN MINNESOTA.

LAT...LON 4654 9719 4647 9744 4618 9716 4638 9708

$$

JK

1 follow-up statement

000 
WWUS53 KFGF 160121
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
820 PM CDT SUN JUL 15 2007

NDC073-077-160130-
/O.CAN.KFGF.TO.W.0026.000000T0000Z-070716T0145Z/
RANSOM ND-RICHLAND ND-
820 PM CDT SUN JUL 15 2007

...THE TORNADO WARNING FOR EAST CENTRAL RANSOM AND WEST CENTRAL
RICHLAND COUNTIES IS CANCELLED...

AT 820 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM LOCATED 5 MILES EAST OF DE LAMERE...OR 30 MILES WEST OF
WAHPETON...MOVING TO THE SOUTH AT 30 MPH.

THE THUNDERSTORM HAS WEAKENED AND WAS NO LONGER CONSIDERED SEVERE. SO
THE WARNING HAS BEEN CANCELLED. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY
MORNING FOR NORTHWESTERN MINNESOTA.

LAT...LON 4654 9719 4647 9744 4618 9716 4638 9708

$$

JK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 7:20 PM CDT	Tornado Warning	FGF	Cass, Ransom	40 min
Jul 15, 7:29 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey, Towner	61 min
Jul 15, 8:26 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	49 min
Jul 15, 8:40 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele	65 min
Jul 15, 8:45 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	60 min
Jul 15, 9:29 PM CDT	Tornado Warning	FGF	Cass	31 min
Jul 15, 9:49 PM CDT	Tornado Warning	FGF	Ransom	26 min
Jul 15, 10:12 PM CDT	Tornado Warning	FGF	Ransom, Richland, Sargent	48 min

Nearby

Tornado Warnings in North Dakota, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.