Alert archive / Missouri / Flood Watches in 2009
Flood Watch 1, NWS Kansas City, MO
NWS Kansas City, MO issued this flood watch at Apr 25, 2009, 4:04 PM CDT for 37 counties in Missouri; 7 counties in Kansas. It took effect at Apr 26, 2009, 1:00 PM CDT. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Apr 25, 2009, 4:04 PM CDT (21:04 UTC)
- In effect from
- Apr 26, 2009, 1:00 PM CDT
- Expired
- Apr 27, 2009, 10:37 AM CDT
- In force
- 22 hr
- Issued by
- NWS Kansas City, MO
- Flood severity
- None
All 44 counties
Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO
The radar
The Pleasant Hill radar (KEAX), 84 km from the middle of the area, began a volume at 21:05 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, 9.1 hours before the alert went out and 154 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
- 558 J/kg
- Mixed-layer CIN
- -281 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 251 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Kansas City, MO wrote its last area forecast discussion before this flood watch went out at Apr 25, 12:29 PM CDT, 3 hours 35 minutes earlier.
Area forecast discussion, Apr 25, 12:29 PM CDT, 3 hours 35 minutes before
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</html>Hazardous weather outlook, Apr 25, 1:00 PM CDT, 3 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 100 PM CDT SAT APR 25 2009 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-261800- ATCHISON KS-MIAMI-LINN KS-DONIPHAN-LEAVENWORTH-WYANDOTTE- JOHNSON KS-ATCHISON MO-NODAWAY-WORTH-GENTRY-HARRISON-MERCER- PUTNAM-SCHUYLER-HOLT-ANDREW-DE KALB-DAVIESS-GRUNDY-SULLIVAN-ADAIR- BUCHANAN-CLINTON-CALDWELL-LIVINGSTON-LINN MO-MACON-PLATTE-CLAY- RAY-CARROLL-CHARITON-RANDOLPH-JACKSON-LAFAYETTE-SALINE-HOWARD- CASS-JOHNSON MO-PETTIS-COOPER-BATES-HENRY- 100 PM CDT SAT APR 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON...ALONG AND NORTH OF A STALLED FRONTAL BOUNDARY. ANY THUNDERSTORMS WHICH DEVELOP WILL LIKELY CONTINUE THROUGH THE EVENING. EXTENSIVE CLOUD COVER WILL LIMIT THE DEGREE OF INSTABILITY AND THUS WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. HOWEVER...AN ISOLATED SEVERE THUNDERSTORM WILL BE POSSIBLE WITH LARGE HAIL THE PRIMARY THREAT. ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS POSSIBLE LATE TONIGHT...AS A COMPLEX OF STORMS DEVELOPS AND MOVES NORTHEAST INTO THE REGION. HOWEVER WHEN AND WHERE THIS ACTIVITY EVOLVES REMAINS IN QUESTION. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE COLD FRONT WILL LIFT NORTH BY SUNDAY BUT THEN RETURN SOUTHWARD SUNDAY EVENING...AS A STRONGER UPPER SYSTEM EJECTS THROUGH THE CENTRAL PLAINS. THERE IS A BETTER CHANCE FOR MORE ORGANIZED AND WIDESPREAD THUNDERSTORM ACTIVITY SUNDAY NIGHT. INITIALLY THE PRIMARY CONCERN WILL BE FOR SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS POSSIBLE. AS SUNDAY EVENING CONTINUES...THE SEVERE THREAT WILL MORPH INTO A HEAVY RAIN AND FLOODING THREAT AS INDIVIDUAL THUNDERSTORMS MOVE REPEATEDLY OVER THE SAME AREA. SEVERAL INCHES OF RAIN WILL BE POSSIBLE OVER MOST OF THE REGION SUNDAY NIGHT. THE WEATHER PATTERN IS EXPECTED TO REMAIN FAIRLY ACTIVE THROUGH THE UPCOMING WEEK...WITH PERIODIC CHANCES FOR THUNDERSTORMS. IT IS TOO SOON TO DETERMINE THE SEVERITY OF ANY OF THIS ACTIVITY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE LATE THIS AFTERNOON AND EVENING AND AGAIN SUNDAY EVENING. NRR
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 9:45 PM CDT | Special Weather Statement | EAX | Atchison | 45 min |
| Apr 25, 8:54 AM CDT | River Flood Warning | EAX | Linn, Livingston | 6 days |
| Apr 25, 8:54 AM CDT | River Flood Warning | EAX | Carroll, Chariton, Linn, Livingston | 9 days |
| Apr 25, 8:54 AM CDT | River Flood Warning | EAX | Buchanan | 6 days |
| Apr 25, 8:54 AM CDT | River Flood Warning | EAX | Platte | 8 days |
| Apr 25, 8:54 AM CDT | River Flood Warning | EAX | Platte | 8 days |
| Apr 25, 5:15 PM CDT | Severe Thunderstorm Warning | EAX | Platte | 30 min |
| Apr 25, 5:22 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Daviess, DeKalb | 23 min |
| Apr 25, 5:40 PM CDT | Special Weather Statement | EAX | Caldwell | 50 min |
| Apr 25, 5:48 PM CDT | Special Weather Statement | EAX | Clinton | 42 min |
| Apr 25, 5:50 PM CDT | Special Weather Statement | EAX | Daviess | 40 min |
| Apr 25, 5:53 PM CDT | Severe Thunderstorm Warning | EAX | Clinton, DeKalb | 32 min |
| Apr 25, 5:57 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy | 33 min |
| Apr 25, 6:15 PM CDT | Special Weather Statement | EAX | Clinton | 30 min |
| Apr 25, 6:24 PM CDT | Flash Flood Warning | EAX | Buchanan, Caldwell, Clay, Clinton, Daviess, DeKalb and 6 more | 6 hr |
| Apr 25, 6:28 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy | 32 min |
| Apr 25, 6:55 PM CDT | Special Weather Statement | EAX | Caldwell | 35 min |
| Apr 25, 4:52 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Leavenworth | 23 min |
| Apr 25, 6:13 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 32 min |
| Apr 25, 6:33 PM CDT | Tornado Warning | EAX | Leavenworth | 27 min |
| Apr 25, 6:57 PM CDT | Tornado Warning | EAX | Leavenworth, Wyandotte | 33 min |
Nearby
Flood Watches in Missouri, 2009Flood Watches in Kansas, 2009Every flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.