Alert archive / Kansas / Flash Flood Watches in 2008

Flash Flood Watch 7, NWS Topeka, KS

June 11, 20086 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Jun 11, 2008, 3:09 PM CDT for 6 counties in Kansas. It took effect at Jun 11, 2008, 7:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jun 11, 2008, 3:09 PM CDT (20:09 UTC)
In effect from: Jun 11, 2008, 7:00 PM CDT
Expired: Jun 12, 2008, 1:53 AM CDT
In force: 7 hr
Issued by: NWS Topeka, KS
Flood severity: None

Counties Brown County, KS, Cloud County, KS, Marshall County, KS, Nemaha County, KS, Republic County, KS, Washington County, KS

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.2 hours before the alert went out and 126 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: 766 J/kg
Mixed-layer CIN: -197 J/kg
Mixed-layer LCL: 703 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 353 m²/s²
0-3 km storm-relative helicity: 352 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.8

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 Jun 11, 3:50 AM CDT, 11 hours 19 minutes earlier.

Area forecast discussion, Jun 11, 3:50 AM CDT, 11 hours 19 minutes before

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Hazardous weather outlook, Jun 11, 6:04 AM CDT, 9 hours 5 minutes before

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In the hours before

Local storm report, Jun 11, 9:30 AM CDT, 5 hours 39 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
Jun 10, 7:20 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Pottawatomie	40 min
Jun 10, 10:49 PM CDT	Severe Thunderstorm Warning	TOP	Cloud	39 min
Jun 11, 12:37 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic, Washington	38 min
Jun 11, 2:12 AM CDT	Severe Thunderstorm Warning	TOP	Jackson, Pottawatomie	39 min
Jun 11, 3:49 AM CDT	Wind Advisory	TOP	Brown, Clay, Cloud, Dickinson, Geary, Jackson and 10 more	16 hr
Jun 11, 6:26 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	64 min

Nearby

Flash Flood Watches in Kansas, 2008 Every flash flood watch in 2008

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.