Alert archive / Arkansas / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 306

May 27, 200121 counties in Arkansas; 17 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2001, 11:00 PM CDT for 21 counties in Arkansas; 17 counties in Oklahoma; 4 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2001, 11:00 PM CDT (04:00 UTC)
Expired
May 28, 2001, 4:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 42 counties

Calhoun County, AR, Clark County, AR, Crawford County, AR, Dallas County, AR, Franklin County, AR, Garland County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Yell County, AR, Atoka County, OK, Choctaw County, OK, Coal County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Bowie County, TX, Delta County, TX, Lamar County, TX, Red River County, TX

The radar

The Western Arkansas radar (KSRX), 57 km from the middle of the area, began a volume at 04:00 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 27, 11:12 PM CDTSevere Thunderstorm WarningLZKHot Spring48 min
May 27, 11:16 PM CDTSevere Thunderstorm WarningLZKPolk44 min
May 27, 11:20 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg55 min
May 28, 12:11 AM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, McIntosh, Pittsburg, Pushmataha64 min
May 28, 12:15 AM CDTSevere Thunderstorm WarningLZKClark45 min
May 28, 12:21 AM CDTSevere Thunderstorm WarningOUNAtoka54 min
May 28, 12:35 AM CDTSevere Thunderstorm WarningTSAChoctaw40 min
May 28, 12:44 AM CDTSevere Thunderstorm WarningLZKPolk51 min
May 28, 12:45 AM CDTFlash Flood WarningLZKPike2 hr
May 28, 12:59 AM CDTSevere Thunderstorm WarningLZKClark46 min
May 28, 1:12 AM CDTSevere Thunderstorm WarningFWDDelta, Lamar48 min
May 28, 1:14 AM CDTSevere Thunderstorm WarningTSAChoctaw61 min
May 28, 1:17 AM CDTSevere Thunderstorm WarningLZKPike43 min
May 28, 1:35 AM CDTSevere Thunderstorm WarningSHVMcCurtain60 min
May 28, 2:04 AM CDTFlash Flood WarningTSALeFlore3 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 4.0 hours before the alert went out and 261 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 00:00Z on 2001-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2794 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 00:00Z on 2001-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
2794 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1283 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 28, 1:30 AM CDTSevere Thunderstorm WatchSPCBradley, Columbia, Lafayette, Miller, Union5 hr
May 27, 7:00 PM CDTSevere Thunderstorm WatchSPCBeaver, Beckham, Custer, Dewey, Ellis, Greer and 8 more4 hr
May 27, 9:00 PM CDTSevere Thunderstorm WatchSPCBryan, Caddo, Canadian, Carter, Cleveland, Coal and 17 more2 hr
May 27, 10:45 PM CDTSevere Thunderstorm WatchSPCBeckham, Bryan, Caddo, Carter, Cleveland, Comanche and 18 more5 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2001Severe Thunderstorm Watches in Oklahoma, 2001Severe Thunderstorm Watches in Texas, 2001Every severe thunderstorm watch in 2001

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.