Alert archive / North Dakota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 136, NWS Grand Forks, ND

July 10, 2008Ransom County, Richland County, Sargent County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 10, 2008, 8:28 PM CDT for Ransom County, Richland County, Sargent County, North Dakota. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 2008, 8:28 PM CDT (01:28 UTC)
Expired: Jul 10, 2008, 9:30 PM CDT
In force: 62 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon

Counties Ransom County, ND, Richland County, ND, Sargent County, ND

The radar

The Aberdeen radar (KABR), 120 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.

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 10, 7:36 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.5 hours before the alert went out and 171 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: 2257 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 2064 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 3:16 PM CDT, 5 hours 12 minutes earlier.

Area forecast discussion, Jul 10, 3:16 PM CDT, 5 hours 12 minutes before

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Hazardous weather outlook, Jul 10, 5:37 AM CDT, 14 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND FORKS ND
537 AM CDT THU JUL 10 2008

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-111045-
WEST POLK-NORMAN-CLAY-KITTSON-ROSEAU-LAKE OF THE WOODS-
WEST MARSHALL-EAST MARSHALL-NORTH BELTRAMI-PENNINGTON-RED LAKE-
EAST POLK-NORTH CLEARWATER-SOUTH BELTRAMI-MAHNOMEN-
SOUTH CLEARWATER-HUBBARD-WEST BECKER-EAST BECKER-WILKIN-
WEST OTTER TAIL-EAST OTTER TAIL-WADENA-GRANT-TOWNER-CAVALIER-
PEMBINA-BENSON-RAMSEY-EASTERN WALSH COUNTY-EDDY-NELSON-
GRAND FORKS-GRIGGS-STEELE-TRAILL-BARNES-CASS-RANSOM-SARGENT-
RICHLAND-WESTERN WALSH COUNTY-
537 AM CDT THU JUL 10 2008

...SEVERE THUNDERSTORMS POSSIBLE TONIGHT AND AGAIN ON FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NORTH
DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT

LOCALLY STRONG THUNDERSTORMS WILL CONTINUE UNTIL MID MORNING SOUTH
OF A LINE FROM GRAND FORKS TO BEMIDJI. THUNDERSTORMS ARE AGAIN
POSSIBLE THIS EVENING INTO THE OVERNIGHT HOURS AS A WARM FRONT
LIFTS NORTH THROUGH THE REGION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A COLD FRONT WILL SWEEP ACROSS THE REGION ON FRIDAY. THUNDERSTORMS
MAY BE ONGOING DURING THE MORNING HOURS. WITH DAYTIME HEATING MORE
STORMS MAY DEVELOP FRIDAY AFTERNOON ALONG AND EAST OF THE RED
RIVER VALLEY. SOME OF THESE STORMS MAY ALSO BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

VOELKER

In the hours before

Local storm report, Jul 10, 3:35 PM CDT, 4 hours 53 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 10:23 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wilkin	67 min
Jul 10, 11:18 PM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail	57 min
Jul 11, 5:01 AM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods, Roseau	59 min
Jul 11, 6:40 AM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods, Roseau	63 min
Jul 11, 8:37 AM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	38 min
Jul 11, 9:10 AM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk	65 min
Jul 11, 2:50 PM CDT	Severe Thunderstorm Warning	FGF	Mahnomen, Norman	55 min
Jul 11, 3:08 PM CDT	Severe Thunderstorm Warning	FGF	Mahnomen, Norman, Polk	67 min
Jul 11, 3:22 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Roseau	53 min
Jul 11, 3:31 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Otter Tail	59 min
Jul 11, 3:34 PM CDT	Tornado Warning Emergency	FGF	Clearwater, Mahnomen	41 min
Jul 11, 3:37 PM CDT	Tornado Warning	FGF	Clearwater, Polk	38 min
Jul 11, 3:41 PM CDT	Tornado Warning	FGF	Marshall, Roseau	64 min
Jul 11, 3:45 PM CDT	Tornado Warning	FGF	Beltrami, Clearwater, Marshall, Pennington, Polk, Red Lake	60 min
Jul 11, 3:46 PM CDT	Tornado Warning	FGF	Becker, Otter Tail	59 min
Jul 11, 4:13 PM CDT	Tornado Warning	FGF	Becker	40 min
Jul 11, 4:14 PM CDT	Tornado Warning	FGF	Clearwater, Mahnomen, Polk	61 min
Jul 11, 4:16 PM CDT	Tornado Warning	FGF	Beltrami, Lake of the Woods, Marshall, Roseau	59 min
Jul 11, 4:23 PM CDT	Tornado Warning	FGF	Otter Tail	52 min
Jul 11, 4:40 PM CDT	Tornado Warning	FGF	Clearwater, Polk	44 min
Jul 11, 4:40 PM CDT	Tornado Warning	FGF	Otter Tail, Wadena	41 min
Jul 11, 4:44 PM CDT	Tornado Warning	FGF	Lake of the Woods, Roseau	61 min
Jul 11, 5:00 PM CDT	Severe Thunderstorm Warning	FGF	Hubbard, Wadena	30 min
Jul 11, 5:03 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Lake of the Woods, Marshall, Pennington	57 min
Jul 11, 5:17 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard, Otter Tail, Wadena	31 min
Jul 11, 6:26 PM CDT	Tornado Warning	FGF	Lake of the Woods	21 min
Jul 11, 3:58 AM CDT	Wind Advisory	FGF	Barnes, Benson, Cavalier, Eddy, Griggs, Nelson and 5 more	17 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2008 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.