Alert archive / Kansas / Flash Flood Watches in 2015
Flash Flood Watch 1, NWS Topeka, KS
NWS Topeka, KS issued this flash flood watch at May 22, 2015, 3:39 PM CDT for 16 counties in Kansas. It took effect at May 23, 2015, 4:00 PM CDT. It was in force for 36 hr.
The area
The counties it named.
The facts
- Issued
- May 22, 2015, 3:39 PM CDT (20:39 UTC)
- In effect from
- May 23, 2015, 4:00 PM CDT
- Expired
- May 25, 2015, 3:35 AM CDT
- In force
- 36 hr
- Issued by
- NWS Topeka, KS
- Flood severity
- None
Counties Anderson County, KS, Brown County, KS, Coffey County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS
The radar
The Topeka radar (KTWX), 27 km from the middle of the area, began a volume at 20:44 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
Topeka, KS (KFOE), launched 12:00Z, 8.7 hours before the alert went out and 24 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1766 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 May 22, 12:46 PM CDT, 2 hours 53 minutes earlier.
Area forecast discussion, May 22, 12:46 PM CDT, 2 hours 53 minutes before
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</html>Hazardous weather outlook, May 22, 8:25 AM CDT, 7 hours 14 minutes before
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Flash Flood Watches in Kansas, 2015Every 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.