Alert archive / Kansas / Flash Flood Watches in 2006

Flash Flood Watch 2, NWS Topeka, KS

August 27, 200610 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Aug 27, 2006, 3:03 PM CDT for 10 counties in Kansas. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Aug 27, 2006, 3:03 PM CDT (20:03 UTC)
Expired: Aug 27, 2006, 10:17 PM CDT
In force: 7 hr
Issued by: NWS Topeka, KS
Flood severity: None

Counties Anderson County, KS, Coffey County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Osage County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 56 km from the middle of the area, began a volume at 20:02 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.1 hours before the alert went out and 264 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 80 J/kg
Mixed-layer CIN: -188 J/kg
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: -18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this flash flood watch went out at Aug 27, 2:37 PM CDT, 26 minutes earlier.

Area forecast discussion, Aug 27, 2:37 PM CDT, 26 minutes before

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Hazardous weather outlook, Aug 27, 5:34 AM CDT, 9 hours 29 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 27, 4:52 AM CDT	Flash Flood Warning	TOP	Wabaunsee	4 hr
Aug 27, 5:24 AM CDT	Flash Flood Warning	TOP	Jackson, Jefferson, Pottawatomie, Shawnee	4 hr

Nearby

Flash Flood Watches in Kansas, 2006 Every flash flood watch in 2006

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.