Alert archive / Kansas / Flash Flood Warnings in 2010
Flash Flood Warning 44, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at Sep 15, 2010, 7:31 PM CDT for 4 counties in Kansas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 15, 2010, 7:31 PM CDT (00:31 UTC)
- Expired
- Sep 15, 2010, 11:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Anderson County, KS, Coffey County, KS, Franklin County, KS, Osage County, KS
The radar
The Topeka radar (KTWX), 90 km from the middle of the area, began a volume at 00:34 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 (KTOP), launched 00:00Z, 0.5 hours before the alert went out and 66 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
- 550 J/kg
- Mixed-layer CIN
- -299 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
What forecasters said that day
The local office's own words before this flash flood warning 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 warning went out at Sep 15, 6:09 PM CDT, 1 hour 22 minutes earlier.
Area forecast discussion, Sep 15, 6:09 PM CDT, 1 hour 22 minutes before
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</html>Hazardous weather outlook, Sep 15, 3:41 PM CDT, 3 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 341 PM CDT WED SEP 15 2010 KSZ008>012-020>024-026-034>040-054>056-058-059-162045- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 341 PM CDT WED SEP 15 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL KANSAS...NORTH CENTRAL KANSAS AND NORTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. THUNDERSTORM WILL INCREASE IN COVERAGE AND INTENSITY ALONG AND AHEAD OF A COLD FRONT THROUGH THE EVENING HOURS. THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO GOLFBALL SIZE...DAMAGING WINDS UP TO 60 MPH...AND WILL POSE A LOW END THREAT FOR ISOLATED TORNADOES. THE GREATEST THREAT OF SEVERE WEATHER WILL BE ALONG AND SOUTH OF INTERSTATE 70...WHILE THE TORNADO THREAT WILL BE LIMITED TO AREAS SOUTH OF A COUNCIL GROVE TO OTTAWA LINE. HEAVY RAINFALL OF ONE TO TWO INCHES PER HOUR AND FLASH FLOODING WILL ALSO BE POSSIBLE...ESPECIALLY OVER PARTS OF EAST CENTRAL AND NORTHEAST KANSAS THAT HAVE RECEIVED HEAVY RAINFALL ALREADY TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THERE WILL BE A SLIGHT CHANCE FOR THUNDERSTORMS ACROSS NORTHERN KANSAS FRIDAY NIGHT THROUGH SATURDAY. THUNDERSTORMS WILL BE POSSIBLE ONCE AGAIN TUESDAY NIGHT AND WEDNESDAY OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.
In the hours before
Local storm report, Sep 15, 6:28 PM CDT, 1 hour 3 minutes before
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</html>Special weather statement, Sep 15, 6:28 PM CDT, 1 hour 3 minutes before
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</html>Local storm report, Sep 15, 6:38 PM CDT, 53 minutes before
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</html>Local storm report, Sep 15, 6:40 PM CDT, 51 minutes before
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</html>Local storm report, Sep 15, 6:46 PM CDT, 45 minutes before
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</html>Special weather statement, Sep 15, 6:59 PM CDT, 32 minutes before
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Flash Flood Warnings in Kansas, 2010Every flash flood warning in 2010
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.