Alert archive / Kansas / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 576

July 18, 200143 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at Jul 18, 2001, 4:00 PM CDT for 43 counties in Kansas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 18, 2001, 4:00 PM CDT (21:00 UTC)
Expired
Jul 18, 2001, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 43 counties

Barton County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Decatur County, KS, Dickinson County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Gove County, KS, Graham County, KS, Jackson County, KS, Jewell County, KS, Lane County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ness County, KS, Norton County, KS, Osage County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Pottawatomie County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Shawnee County, KS, Sheridan County, KS, Smith County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS

The radar

The Grand Island radar (KUEX), 114 km from the middle of the area, began a volume at 21:03 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

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

IssuedProductOfficeCountiesLasted
Jul 18, 5:57 PM CDTSevere Thunderstorm WarningTOPRepublic33 min
Jul 18, 6:28 PM CDTSevere Thunderstorm WarningTOPRepublic32 min
Jul 18, 6:54 PM CDTSevere Thunderstorm WarningTOPWashington51 min
Jul 18, 6:59 PM CDTSevere Thunderstorm WarningTOPRepublic31 min
Jul 18, 7:04 PM CDTSevere Thunderstorm WarningGLDGove, Logan41 min
Jul 18, 7:43 PM CDTSevere Thunderstorm WarningTOPWashington32 min
Jul 18, 7:52 PM CDTSevere Thunderstorm WarningGLDSheridan, Thomas53 min
Jul 18, 8:04 PM CDTSevere Thunderstorm WarningTOPMarshall41 min
Jul 18, 8:30 PM CDTSevere Thunderstorm WarningTOPMarshall30 min
Jul 18, 8:52 PM CDTSevere Thunderstorm WarningTOPNemaha53 min
Jul 18, 9:29 PM CDTSevere Thunderstorm WarningTOPBrown, Jackson61 min
Jul 18, 9:40 PM CDTSevere Thunderstorm WarningTOPWashington35 min

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.0 hours before the alert went out and 256 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, Topeka, KS at 12:00Z on 2001-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1142 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, Topeka, KS at 12:00Z on 2001-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 265 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
1142 J/kg
Mixed-layer CIN
-307 J/kg
Mixed-layer LCL
1738 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
265 m²/s²
0-3 km storm-relative helicity
347 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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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 Kansas, 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.