Alert archive / Arkansas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 385

July 14, 201638 counties in Arkansas; McCurtain County, Oklahoma; Bowie County, Red River County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jul 14, 2016, 3:05 PM CDT for 38 counties in Arkansas; McCurtain County, Oklahoma; Bowie County, Red River County, Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 14, 2016, 3:05 PM CDT (20:05 UTC)
Expired
Jul 14, 2016, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 41 counties

Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sevier County, AR, Union County, AR, Yell County, AR, McCurtain County, OK, Bowie County, TX, Red River County, TX

The radar

The Western Arkansas radar (KSRX), 87 km from the middle of the area, began a volume at 20:06 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
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 14, 3:28 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Montgomery, Newton, Polk, Pope and 2 more62 min
Jul 14, 3:51 PM CDTSevere Thunderstorm WarningSHVMcCurtain24 min
Jul 14, 4:15 PM CDTSevere Thunderstorm WarningLZKGarland, Perry, Yell45 min
Jul 14, 4:17 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike, Polk43 min
Jul 14, 4:29 PM CDTSevere Thunderstorm WarningLZKConway, Garland, Johnson, Logan, Montgomery, Perry and 4 more46 min
Jul 14, 4:51 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Sevier39 min
Jul 14, 4:59 PM CDTSevere Thunderstorm WarningLZKClark, Garland, Grant, Hot Spring, Montgomery, Pike and 1 more61 min
Jul 14, 5:09 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Pulaski, Saline51 min
Jul 14, 5:31 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Nevada, Sevier59 min
Jul 14, 5:38 PM CDTTornado WarningLZKPulaski, Saline22 min
Jul 14, 5:53 PM CDTSevere Thunderstorm WarningLZKCleveland, Dallas, Garland, Grant, Hot Spring, Jefferson and 2 more67 min
Jul 14, 5:55 PM CDTSevere Thunderstorm WarningLZKClark, Dallas, Ouachita50 min
Jul 14, 5:56 PM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski, Saline49 min
Jul 14, 6:10 PM CDTSevere Thunderstorm WarningSHVColumbia, Hempstead, Lafayette, Nevada65 min
Jul 14, 6:30 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland, Dallas, Drew, Grant and 2 more45 min
Jul 14, 6:35 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Ouachita40 min
Jul 14, 6:41 PM CDTSevere Thunderstorm WarningSHVColumbia, Lafayette, Union64 min
Jul 14, 6:47 PM CDTSevere Thunderstorm WarningLZKArkansas, Lonoke, Prairie, Pulaski43 min
Jul 14, 7:13 PM CDTSevere Thunderstorm WarningLZKArkansas, Desha, Drew, Jefferson, Lincoln, Monroe47 min
Jul 14, 7:28 PM CDTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie, Woodruff47 min
Jul 14, 8:03 PM CDTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie42 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

Shreveport, LA (KBAD), launched 12:00Z, 8.1 hours before the alert went out and 245 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, Shreveport, LA at 12:00Z on 2016-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 645 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, Shreveport, LA at 12:00Z on 2016-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
645 J/kg
Mixed-layer CIN
-344 J/kg
Mixed-layer LCL
1134 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
87 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 14, 3:10 AM CDTMesoscale DiscussionSPCHoward, Little River, Polk, Sevier95 min
Jul 14, 11:21 AM CDTMesoscale DiscussionSPCBenton, Crawford, Sebastian, Washington114 min
Jul 14, 11:38 AM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more5 hr
Jul 14, 2:14 PM CDTMesoscale DiscussionSPCClark, Conway, Crawford, Dallas, Franklin, Garland and 20 more91 min
Jul 14, 5:43 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 20 more2 hr
Jul 14, 5:05 PM CDTMesoscale DiscussionSPCBeckham, Caddo, Cimarron, Comanche, Custer, Dewey and 8 more115 min
Jul 14, 6:25 PM CDTSevere Thunderstorm WatchSPCBeckham, Caddo, Comanche, Cotton, Grady, Greer and 7 more7 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2016Severe Thunderstorm Watches in Texas, 2016Severe Thunderstorm Watches in Oklahoma, 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.