Alert archive / Kansas / Flash Flood Watches in 2015

Flash Flood Watch 6, NWS Topeka, KS

June 25, 20156 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Jun 25, 2015, 3:34 AM CDT for 6 counties in Kansas. It took effect at Jun 25, 2015, 7:00 PM CDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Jun 25, 2015, 3:34 AM CDT (08:34 UTC)
In effect from: Jun 25, 2015, 7:00 PM CDT
Expired: Jun 26, 2015, 4:58 AM CDT
In force: 10 hr
Issued by: NWS Topeka, KS
Flood severity: None

Counties Brown County, KS, Jackson County, KS, Jefferson County, KS, Marshall County, KS, Nemaha County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 73 km from the middle of the area, began a volume at 08:36 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

Omaha, NE (KOAX), launched 00:00Z, 8.6 hours before the alert went out and 189 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: 3546 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 234 m²/s²
0-3 km storm-relative helicity: 618 m²/s²
Significant tornado parameter: 10.1
Supercell composite: 76.0

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 Jun 25, 3:27 AM CDT, 7 minutes earlier.

Area forecast discussion, Jun 25, 3:27 AM CDT, 7 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 25, 5:20 PM CDT	Special Weather Statement	TOP	Dickinson	25 min
Jun 25, 6:10 PM CDT	Special Weather Statement	TOP	Douglas	20 min

Nearby

Flash Flood Watches in Kansas, 2015 Every flash flood watch in 2015

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.