Alert archive / Illinois / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 172

April 16, 20005 states

The Storm Prediction Center issued this severe thunderstorm watch at Apr 16, 2000, 5:45 PM CDT for 5 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 16, 2000, 5:45 PM CDT (22:45 UTC)
Expired
Apr 16, 2000, 11:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 51 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Mississippi County, AR, Poinsett County, AR, Woodruff County, AR, Alexander County, IL, Gallatin County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Williamson County, IL, Ballard County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Union County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Scott County, MO, Stoddard County, MO, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 94 km from the middle of the area, began a volume at 22:45 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

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

IssuedProductOfficeCountiesLasted
Apr 16, 5:54 PM CDTSevere Thunderstorm WarningMEGClay46 min
Apr 16, 6:10 PM CDTSevere Thunderstorm WarningPAHScott, Stoddard50 min
Apr 16, 6:39 PM CDTSevere Thunderstorm WarningMEGClay, Randolph61 min
Apr 16, 6:51 PM CDTSevere Thunderstorm WarningMEGDunklin49 min
Apr 16, 6:57 PM CDTSevere Thunderstorm WarningPAHStoddard48 min
Apr 16, 7:03 PM CDTSevere Thunderstorm WarningPAHScott27 min
Apr 16, 7:11 PM CDTSevere Thunderstorm WarningMEGPemiscot49 min
Apr 16, 7:16 PM CDTTornado WarningPAHScott29 min
Apr 16, 7:24 PM CDTSevere Thunderstorm WarningPAHAlexander51 min
Apr 16, 7:24 PM CDTSevere Thunderstorm WarningPAHPulaski51 min
Apr 16, 7:24 PM CDTSevere Thunderstorm WarningPAHButler51 min
Apr 16, 7:35 PM CDTTornado WarningPAHAlexander25 min
Apr 16, 7:37 PM CDTSevere Thunderstorm WarningMEGClay58 min
Apr 16, 7:38 PM CDTSevere Thunderstorm WarningPAHButler, Stoddard52 min
Apr 16, 7:47 PM CDTSevere Thunderstorm WarningPAHBallard43 min
Apr 16, 8:14 PM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski31 min
Apr 16, 8:24 PM CDTSevere Thunderstorm WarningPAHNew Madrid36 min
Apr 16, 8:34 PM CDTSevere Thunderstorm WarningMEGLake41 min
Apr 16, 8:39 PM CDTSevere Thunderstorm WarningPAHBallard51 min
Apr 16, 8:48 PM CDTSevere Thunderstorm WarningMEGPemiscot47 min
Apr 16, 8:59 PM CDTSevere Thunderstorm WarningPAHFulton61 min
Apr 16, 9:00 PM CDTSevere Thunderstorm WarningPAHMcCracken60 min
Apr 16, 9:19 PM CDTSevere Thunderstorm WarningMEGLake51 min
Apr 16, 9:23 PM CDTSevere Thunderstorm WarningPAHGraves52 min
Apr 16, 9:25 PM CDTSevere Thunderstorm WarningPAHJackson, Johnson, Union, Williamson50 min
Apr 16, 9:51 PM CDTSevere Thunderstorm WarningMEGObion49 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.8 hours before the alert went out and 151 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 2000-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2000-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

Nearby

Severe Thunderstorm Watches in Illinois, 2000Severe Thunderstorm Watches in Kentucky, 2000Severe Thunderstorm Watches in Tennessee, 2000Every severe thunderstorm watch in 2000

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.