Alert archive / North Dakota / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 704

July 19, 200819 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 19, 2008, 2:53 PM CDT for 19 counties in North Dakota. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jul 19, 2008, 2:53 PM CDT (19:53 UTC)
Expired
Jul 19, 2008, 10:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt

Counties Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Grant County, ND, Kidder County, ND, Logan County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Sheridan County, ND, Sioux County, ND, Ward County, ND, Williams County, ND

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 19, 2:59 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams61 min
Jul 19, 3:56 PM CDTSevere Thunderstorm WarningBISDunn, McKenzie, Mountrail64 min
Jul 19, 4:10 PM CDTTornado WarningBISDunn, McKenzie, Mountrail35 min
Jul 19, 4:45 PM CDTTornado WarningBISDunn30 min
Jul 19, 5:17 PM CDTSevere Thunderstorm WarningBISDunn, Mercer43 min
Jul 19, 5:38 PM CDTSevere Thunderstorm WarningBISEmmons, McIntosh52 min
Jul 19, 5:52 PM CDTSevere Thunderstorm WarningBISDunn, Mercer, Morton, Oliver, Stark38 min
Jul 19, 6:18 PM CDTSevere Thunderstorm WarningBISMercer, Morton, Oliver42 min
Jul 19, 6:29 PM CDTSevere Thunderstorm WarningBISEmmons, McIntosh31 min
Jul 19, 6:52 PM CDTSevere Thunderstorm WarningBISBurleigh, Morton, Oliver53 min
Jul 19, 7:38 PM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Kidder, Morton, Sioux67 min
Jul 19, 8:22 PM CDTSevere Thunderstorm WarningBISBurke, Divide53 min
Jul 19, 8:38 PM CDTSevere Thunderstorm WarningBISEmmons, Logan, McIntosh67 min
Jul 19, 9:34 PM CDTSevere Thunderstorm WarningBISMcIntosh56 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 7.9 hours before the alert went out and 137 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 2008-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2008-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939587897Sfc1 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
13 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 1:49 PM CDTMesoscale DiscussionSPCBurke, Divide, Dunn, McKenzie, McLean, Mercer and 3 more86 min
Jul 19, 5:01 PM CDTMesoscale DiscussionSPCBurleigh, McLean, Mercer, Morton, Oliver89 min
Jul 18, 8:45 PM CDTMesoscale DiscussionSPCBennett, Butte, Custer, Dewey, Haakon, Harding and 15 more2 hr
Jul 18, 9:58 PM CDTSevere Thunderstorm WatchSPCAurora, Brule, Buffalo, Charles Mix, Dewey, Douglas and 11 more6 hr
Jul 18, 11:47 PM CDTMesoscale DiscussionSPCAurora, Bennett, Brule, Buffalo, Charles Mix, Custer and 19 more88 min
Jul 19, 1:09 PM CDTMesoscale DiscussionSPCBon Homme, Charles Mix, Clay, Douglas, Gregory, Hutchinson and 5 more2 hr
Jul 19, 2:28 PM CDTTornado WatchSPCBon Homme, Clay, Hutchinson, Lincoln, McCook, Minnehaha and 3 more8 hr

Nearby

Severe Thunderstorm Watches in North Dakota, 2008Every severe thunderstorm watch 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.