Alert archive / Missouri / Tornado Watches in 2008

Tornado Watch 188

April 10, 20088 counties in Missouri

The Storm Prediction Center issued this tornado watch at Apr 10, 2008, 7:44 AM CDT for 8 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 10, 2008, 7:44 AM CDT (12:44 UTC)
Expired
Apr 10, 2008, 10:02 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt

Counties Dent County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Shannon County, MO, Texas County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 121 km from the middle of the area, began a volume at 12:47 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 SPC expected

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

Two or more tornadoes
30%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
10%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 10, 7:51 AM CDTSevere Thunderstorm WarningSGFHowell, Texas54 min
Apr 10, 8:09 AM CDTTornado WarningSGFDouglas, Howell, Texas31 min
Apr 10, 8:25 AM CDTTornado WarningSGFHowell, Oregon, Shannon50 min
Apr 10, 8:29 AM CDTSevere Thunderstorm WarningSGFOregon, Shannon61 min
Apr 10, 9:27 AM CDTSevere Thunderstorm WarningSGFOregon28 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

Springfield, MO (KSGF), launched 12:00Z, 0.7 hours before the alert went out and 154 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, Springfield, MO at 12:00Z on 2008-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, Springfield, MO at 12:00Z on 2008-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
8 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
205 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
Apr 10, 3:00 AM CDTMesoscale DiscussionSPCDunklin, Mississippi, New Madrid, Pemiscot60 min
Apr 10, 3:28 AM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Iron and 10 more7 hr
Apr 10, 6:56 AM CDTMesoscale DiscussionSPCChristian, Douglas, Greene, Howell, Laclede, Maries and 9 more64 min
Apr 10, 9:27 AM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 11 more2 hr
Apr 10, 9:51 AM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 11 more7 hr
Apr 10, 10:51 AM CDTMesoscale DiscussionSPCButler, Cape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot and 2 more84 min
Apr 10, 11:16 AM CDTMesoscale DiscussionSPCCape Girardeau2 hr
Apr 10, 1:41 PM CDTMesoscale DiscussionSPCButler, Cape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot and 2 more2 hr
Apr 10, 2:03 PM CDTMesoscale DiscussionSPCAndrew, Barton, Bates, Benton, Buchanan, Caldwell and 21 more117 min
Apr 10, 2:28 PM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Atchison, Barton, Bates, Benton and 51 more7 hr
Apr 10, 4:55 PM CDTTornado WatchSPCAdair, Audrain, Clark, Gentry, Grundy, Harrison and 15 more5 hr
Apr 10, 5:03 PM CDTTornado WatchSPCMississippi6 hr
Apr 10, 6:44 PM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Audrain, Barton, Bates and 59 more61 min

Nearby

Tornado Watches in Missouri, 2008Every tornado 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; radar from the NEXRAD Level II archive.