Alert archive / Kansas / River Flood Warnings in 2009

River Flood Warning 46, NWS Topeka, KS

July 21, 2009Lyon County, Kansas

NWS Topeka, KS issued this river flood warning at Jul 21, 2009, 9:15 AM CDT for Lyon County, Kansas. It took effect at Jul 22, 2009, 12:03 PM CDT. It was in force for 97 min.

The area

The counties it named.

The facts

Issued: Jul 21, 2009, 9:15 AM CDT (14:15 UTC)
In effect from: Jul 22, 2009, 12:03 PM CDT
Expired: Jul 22, 2009, 1:40 PM CDT
In force: 97 min
Issued by: NWS Topeka, KS
Flood severity: Minor

County Lyon County, KS

The radar

The Topeka radar (KTWX), 61 km from the middle of the area, began a volume at 14:31 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 river

Written for the forecast point Cottonwood River at Emporia (EMPK1).

Action stage: 15 ft
Minor stage: 20 ft
Moderate stage: 24 ft
Major stage: 32 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07182260, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Jul 20, 6:28 PM CDT, 14 hours 47 minutes earlier.

Area forecast discussion, Jul 20, 6:28 PM CDT, 14 hours 47 minutes before

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Hazardous weather outlook, Jul 20, 6:09 PM CDT, 15 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TOPEKA KS
609 PM CDT MON JUL 20 2009

KSZ020-034-035-037-212315-
CLOUD-OTTAWA-DICKINSON-MORRIS-
609 PM CDT MON JUL 20 2009

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

.DAY ONE...THIS EVENING AND TONIGHT

PERIODS OF THUNDERSTORMS ARE EXPECTED ACROSS THE OUTLOOK AREA
TONIGHT. SOME OF THE STORMS MAY BE SEVERE WITH LARGE HAIL...DAMAGING
WINDS AND TORNADOES...MAINLY ACROSS CENTRAL KANSAS LATER THIS
EVENING. IN ADDITION...LOCALLY HEAVY RAINFALL IS EXPECTED ACROSS
MUCH OF NORTHEAST AND EAST CENTRAL KANSAS TONIGHT WHICH COULD LEAD
TO FLASH FLOODING. A FLASH FLOOD WATCH IS POSTED TONIGHT FOR MUCH
OF NORTHEAST AND EAST CENTRAL KANSAS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE POSSIBLE TUESDAY MORNING ACROSS PARTS OF
NORTHEAST AND EAST CENTRAL KANSAS.

THE CHANCE FOR THUNDERSTORMS RETURNS TO THE AREA FRIDAY INTO SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED.

KSZ008>012-021>024-026-036-038>040-054>056-058-059-212315-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLAY-RILEY-POTTAWATOMIE-
JACKSON-JEFFERSON-GEARY-WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-
FRANKLIN-COFFEY-ANDERSON-
609 PM CDT MON JUL 20 2009

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

.DAY ONE...THIS EVENING AND TONIGHT

PERIODS OF THUNDERSTORMS ARE EXPECTED ACROSS THE OUTLOOK AREA
TONIGHT. SOME OF THE STORMS MAY BE SEVERE WITH LARGE HAIL AND
DAMAGING WINDS THE MAIN HAZARDS...MAINLY ACROSS NORTH CENTRAL
KANSAS LATER THIS EVENING. IN ADDITION...LOCALLY HEAVY RAINFALL IS
EXPECTED ACROSS MUCH OF NORTHEAST AND EAST CENTRAL KANSAS TONIGHT
WHICH COULD LEAD TO FLASH FLOODING. A FLASH FLOOD WATCH IS POSTED
TONIGHT FOR MUCH OF NORTHEAST AND EAST CENTRAL KANSAS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE POSSIBLE TUESDAY MORNING ACROSS PARTS OF
NORTHEAST AND EAST CENTRAL KANSAS.

THE CHANCE FOR THUNDERSTORMS RETURNS TO THE AREA FRIDAY INTO
SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS EVENING AND TONIGHT...MAINLY ACROSS
NORTH CENTRAL KANSAS.

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 7:43 PM CDT	Severe Thunderstorm Warning	TOP	Lyon	47 min
Jul 20, 8:21 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	24 min
Jul 20, 8:43 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	47 min
Jul 20, 9:35 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	40 min
Jul 20, 9:36 PM CDT	Areal Flood Advisory	TOP	Dickinson, Geary, Morris	4 hr

Nearby

River Flood Warnings in Kansas, 2009 Every river flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.