Alert archive / Arkansas / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 415

June 1, 200838 counties in Arkansas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 1, 2008, 11:45 AM CDT for 38 counties in Arkansas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2008, 11:45 AM CDT (16:45 UTC)
Expired
Jun 1, 2008, 5:20 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 38 counties

Arkansas County, AR, Baxter County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lincoln County, AR, Lonoke County, AR, Monroe County, AR, Montgomery County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR

The radar

The Little Rock radar (KLZK), 74 km from the middle of the area, began a volume at 16:46 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
5%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 1, 12:27 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Scott, Yell63 min
Jun 1, 12:52 PM CDTFlash Flood WarningLZKJohnson, Logan, Scott, Yell53 min
Jun 1, 1:00 PM CDTSevere Thunderstorm WarningLZKGarland, Johnson, Logan, Montgomery, Perry, Pope and 3 more45 min
Jun 1, 1:31 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Garland, Hot Spring, Montgomery, Perry and 5 more44 min
Jun 1, 1:59 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Garland, Grant, Hot Spring, Lonoke and 4 more46 min
Jun 1, 2:14 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Van Buren46 min
Jun 1, 2:34 PM CDTSevere Thunderstorm WarningLZKDallas, Grant, Jefferson, Lonoke, Prairie, Pulaski and 2 more41 min
Jun 1, 2:39 PM CDTSevere Thunderstorm WarningLZKCleburne, Faulkner, White51 min
Jun 1, 3:03 PM CDTSevere Thunderstorm WarningLZKMonroe27 min
Jun 1, 3:07 PM CDTSevere Thunderstorm WarningLZKArkansas, Desha, Jefferson, Lincoln, Lonoke, Monroe and 3 more53 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, 4.8 hours before the alert went out and 229 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 2008-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 292 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 2008-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.19395878Sfc1 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
292 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 31, 7:43 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Johnson, Madison and 4 more32 min
May 31, 10:27 PM CDTMesoscale DiscussionSPCClay, Mississippi63 min
Jun 1, 2:34 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Fulton and 6 more116 min
Jun 1, 6:17 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Crawford and 14 more88 min
Jun 1, 7:58 AM CDTMesoscale DiscussionSPCBenton, Washington3 hr
Jun 1, 8:36 AM CDTSevere Thunderstorm WatchSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 8 more6 hr
Jun 1, 10:18 AM CDTMesoscale DiscussionSPCConway, Crawford, Franklin, Garland, Johnson, Logan and 6 more57 min
Jun 1, 1:21 PM CDTMesoscale DiscussionSPCArkansas, Clark, Cleveland, Conway, Dallas, Desha and 22 more54 min
Jun 1, 3:04 PM CDTSevere Thunderstorm WatchSPCAshley, Chicot, Crittenden, Cross, Lee, Phillips and 1 more6 hr
May 31, 9:00 PM CDTTornado WatchSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 14 more4 hr
May 31, 11:22 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 16 more53 min
Jun 1, 1:04 AM CDTSevere Thunderstorm WatchSPCBarry, Barton, Bollinger, Butler, Camden, Carter and 33 more7 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 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; radar from the NEXRAD Level II archive.