Alert archive / Arkansas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 359

July 8, 20165 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2016, 2:26 PM CDT for 5 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 8, 2016, 2:26 PM CDT (19:26 UTC)
Expired
Jul 8, 2016, 7:54 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 59 counties

Baxter County, AR, Clay County, AR, Cleburne County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Marion County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, Fulton County, KY, Hickman County, KY, Butler County, MO, Carter County, MO, Douglas County, MO, Dunklin County, MO, Howell County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Wayne County, MO, Wright County, MO, DeSoto County, MS, Marshall County, MS, Tate County, MS, Tunica County, MS, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 104 km from the middle of the area, began a volume at 19:26 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
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:28 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Ozark, Taney62 min
Jul 8, 2:31 PM CDTSevere Thunderstorm WarningLZKIzard29 min
Jul 8, 2:42 PM CDTSevere Thunderstorm WarningMEGLawrence, Randolph48 min
Jul 8, 2:59 PM CDTSevere Thunderstorm WarningSGFDouglas, Howell61 min
Jul 8, 3:29 PM CDTSevere Thunderstorm WarningPAHButler, Ripley31 min
Jul 8, 3:33 PM CDTSevere Thunderstorm WarningSGFTexas57 min
Jul 8, 3:34 PM CDTSevere Thunderstorm WarningMEGCraighead, Greene, Lawrence41 min
Jul 8, 3:37 PM CDTSevere Thunderstorm WarningLZKSharp23 min
Jul 8, 3:47 PM CDTSevere Thunderstorm WarningSGFHowell, Oregon, Shannon58 min
Jul 8, 4:05 PM CDTSevere Thunderstorm WarningPAHCarter, Ripley55 min
Jul 8, 4:10 PM CDTSevere Thunderstorm WarningMEGCraighead, Greene, Lawrence37 min
Jul 8, 4:25 PM CDTFlash Flood WarningMEGClay, Craighead, Greene, Lawrence, Randolph6 hr
Jul 8, 4:48 PM CDTSevere Thunderstorm WarningPAHButler42 min
Jul 8, 4:55 PM CDTFlash Flood WarningPAHButler2 hr
Jul 8, 4:55 PM CDTSevere Thunderstorm WarningPAHRipley20 min
Jul 8, 4:57 PM CDTSevere Thunderstorm WarningPAHButler, Carter, Wayne48 min
Jul 8, 5:03 PM CDTFlash Flood WarningMEGPemiscot3 hr
Jul 8, 5:19 PM CDTFlash Flood WarningPAHCarter, Wayne3 hr
Jul 8, 5:22 PM CDTFlash Flood WarningMEGLake3 hr
Jul 8, 5:24 PM CDTFlash Flood WarningPAHRipley3 hr
Jul 8, 5:49 PM CDTSevere Thunderstorm WarningPAHBallard, Carlisle, Hickman26 min
Jul 8, 5:52 PM CDTSevere Thunderstorm WarningPAHMississippi, Scott23 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

Little Rock, AR (KBYH), launched 12:00Z, 7.4 hours before the alert went out and 159 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, Little Rock, AR at 12:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2153 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, Little Rock, AR at 12:00Z on 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 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
2153 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
1253 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
72 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 8, 1:45 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Cleburne and 17 more90 min
Jul 8, 9:23 AM CDTMesoscale DiscussionSPCBenton, Crawford, Madison, Sebastian, Washington97 min
Jul 8, 1:59 PM CDTMesoscale DiscussionSPCBaxter, Boone, Clay, Cleburne, Craighead, Fulton and 12 more2 hr
Jul 8, 4:42 PM CDTMesoscale DiscussionSPCClay, Craighead, Greene, Lawrence, Mississippi, Randolph and 1 more63 min
Jul 8, 9:08 AM CDTMesoscale DiscussionSPCBoone, Bracken, Bullitt, Campbell, Carroll, Franklin and 12 more67 min
Jul 8, 10:06 AM CDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Bath, Bell and 101 more7 hr
Jul 8, 12:01 PM CDTMesoscale DiscussionSPCBell, Breathitt, Clay, Floyd, Harlan, Johnson and 10 more59 min
Jul 8, 2:49 PM CDTMesoscale DiscussionSPCAdair, Bell, Breathitt, Casey, Clark, Clay and 32 more56 min
Jul 8, 5:06 PM CDTMesoscale DiscussionSPCBreckinridge, Bullitt, Daviess, Hancock, Hardin, Henderson and 3 more84 min
Jul 7, 8:01 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Camden, Cass, Cedar and 11 more119 min
Jul 7, 8:21 PM CDTSevere Thunderstorm WatchSPCAudrain, Barry, Barton, Bates, Benton, Boone and 37 more6 hr
Jul 7, 11:01 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Boone, Callaway, Camden and 16 more119 min
Jul 8, 12:34 PM CDTSevere Thunderstorm WatchSPCAnderson, Bedford, Bledsoe, Blount, Campbell, Cannon and 50 more7 hr
Jul 8, 2:32 PM CDTMesoscale DiscussionSPCJohnson88 min

Nearby

Severe Thunderstorm Watches in Arkansas, 2016Severe Thunderstorm Watches in Missouri, 2016Severe Thunderstorm Watches in Tennessee, 2016Every severe thunderstorm watch in 2016

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.