Alert archive / Kansas / Flash Flood Watches in 2007

Flash Flood Watch 11, NWS Topeka, KS

October 14, 200714 counties in Kansas

NWS Topeka, KS issued this flash flood watch at Oct 14, 2007, 7:11 AM CDT for 14 counties in Kansas. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued: Oct 14, 2007, 7:11 AM CDT (12:11 UTC)
Expired: Oct 15, 2007, 3:22 AM CDT
In force: 20 hr
Issued by: NWS Topeka, KS
Flood severity: None

Counties Brown County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Marshall County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 62 km from the middle of the area, began a volume at 12:10 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 12:00Z, 0.2 hours before the alert went out and 102 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1217 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 403 m²/s²
0-3 km storm-relative helicity: 379 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 Oct 14, 3:58 AM CDT, 3 hours 13 minutes earlier.

Area forecast discussion, Oct 14, 3:58 AM CDT, 3 hours 13 minutes before

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Hazardous weather outlook, Oct 14, 5:11 AM CDT, 2 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
511 AM CDT SUN OCT 14 2007

KSZ008>012-020>024-026-034>040-054>056-058-059-151015-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
511 AM CDT SUN OCT 14 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE POSSIBLE THROUGH THE DAY TODAY AND TONIGHT. THEY
ARE MORE LIKELY TO OCCUR ACROSS NORTH CENTRAL KANSAS AND INTO
NORTHEAST KANSAS THROUGH THE MORNING AND EARLY AFTERNOON. A FEW
STORMS WILL BE CAPABLE OF PRODUCING HAIL FROM THREE QUARTERS OF AN
INCH TO NEAR ONE INCH IN DIAMETER.

A COLD FRONT WILL MOVE ACROSS CENTRAL AND EASTERN KANSAS TONIGHT...
BRINGING THE BEST CHANCE FOR SEVERE WEATHER. THUNDERSTORMS ARE
EXPECTED TO DEVELOP ALONG AND AHEAD OF THE FRONT AS IT PROGRESSES
INTO NORTH CENTRAL KANSAS DURING THE EVENING...THEN INTO
NORTHEAST AND EAST CENTRAL KANSAS THROUGH THE OVERNIGHT HOURS.
SOME OF THE THUNDERSTORMS COULD PRODUCING LARGE HAIL AND DAMAGING
STRAIGHT LINE WINDS.

ADDITIONALLY THE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY
RAIN. STORMS THAT TRAIN OVER ONE LOCATION OR MOVE OVER AREAS THAT
HAVE RECENTLY RECEIVED HEAVY RAIN...COULD CAUSE A FLASH FLOODING
HAZARD TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE FOR THUNDERSTORMS WEDNESDAY THROUGH THURSDAY
NIGHT ACROSS NORTH CENTRAL...NORTHEAST AND EAST CENTRAL KANSAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED ACROSS NORTH CENTRAL KANSAS THIS AFTERNOON
AND ACROSS NORTHEAST AND EAST CENTRAL KANSAS THIS EVENING.

WOLTERS

In the hours before

Special weather statement, Oct 14, 5:21 AM CDT, 1 hour 50 minutes before

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Special weather statement, Oct 14, 5:50 AM CDT, 1 hour 21 minutes before

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Special weather statement, Oct 14, 6:03 AM CDT, 1 hour 8 minutes before

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Special weather statement, Oct 14, 6:18 AM CDT, 53 minutes before

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Local storm report, Oct 14, 6:22 AM CDT, 49 minutes before

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Special weather statement, Oct 14, 6:30 AM CDT, 41 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
Oct 14, 6:45 AM CDT	Flash Flood Warning	TOP	Marshall	4 hr
Oct 14, 1:27 PM CDT	River Flood Warning	TOP	Marshall	47 hr
Oct 14, 2:18 PM CDT	River Flood Warning	TOP	Washington	6 hr
Oct 14, 4:45 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Washington	26 min
Oct 14, 6:38 PM CDT	Flash Flood Warning	TOP	Dickinson, Geary, Riley	2 hr
Oct 14, 6:52 PM CDT	Severe Thunderstorm Warning	TOP	Morris	24 min

Nearby

Flash Flood Watches in Kansas, 2007 Every flash flood watch in 2007

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.