Alert archive / Missouri / Flash Flood Watches in 2008
Flash Flood Watch 12, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood watch at Jul 8, 2008, 12:15 PM CDT for 6 counties in Missouri; Linn County, Miami County, Kansas. It took effect at Jul 8, 2008, 4:00 PM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jul 8, 2008, 12:15 PM CDT (17:15 UTC)
- In effect from
- Jul 8, 2008, 4:00 PM CDT
- Expired
- Jul 8, 2008, 10:02 PM CDT
- In force
- 6 hr
- Issued by
- NWS Kansas City, MO
- Flood severity
- None
Counties Linn County, KS, Miami County, KS, Bates County, MO, Cass County, MO, Cooper County, MO, Henry County, MO, Johnson County, MO, Pettis County, MO
The radar
The Pleasant Hill radar (KEAX), 37 km from the middle of the area, began a volume at 17:19 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, 5.3 hours before the alert went out and 150 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
- 157 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1017 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -14 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 Kansas City, MO wrote its last area forecast discussion before this flash flood watch went out at Jul 8, 6:30 AM CDT, 5 hours 45 minutes earlier.
Area forecast discussion, Jul 8, 6:30 AM CDT, 5 hours 45 minutes before
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</html>Hazardous weather outlook, Jul 8, 6:00 AM CDT, 6 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 600 AM CDT TUE JUL 8 2008 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-091100- 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- 600 AM CDT TUE JUL 8 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TODAY AND TONIGHT A STALLED FRONTAL BOUNDARY ACROSS NORTHERN MISSOURI THIS MORNING WILL CONTINUE TO SLOWLY MOVE SOUTHWARD ACROSS THE OUTLOOK AREA THROUGH THE NEXT 24 HOURS. ALONG AND AHEAD OF THIS FRONT...SCATTERED SHOWERS AND THUNDERSTORM DEVELOPMENT WILL CONTINUE ACROSS THE ENTIRE OUTLOOK AREA THROUGH THE DAYTIME HOURS...AND GENERALLY SOUTH OF INTERSTATE 70 LATER THIS EVENING AND OVERNIGHT. IF CLOUDS CAN THIN AND SUFFICIENT INSTABILITY CAN DEVELOP...THE POSSIBILITY EXISTS FOR ISOLATED STRONG TO SEVERE THUNDERSTORMS BY THE EARLY AFTERNOON HOURS AND THROUGH THE EARLY EVENING HOURS. THE PRIMARY THREATS WILL BE DAMAGING WINDS AND LARGE HAIL. HOWEVER...DUE TO THE SLOW MOVEMENT OF THE SURFACE FRONT AND ASSOCIATED THUNDERSTORM ACTIVITY...LOCALLY HEAVY RAINFALL AND ISOLATED FLOODING WILL BE POSSIBLE. THE MOST LIKELY AREAS FOR FLOODING WOULD BE ACROSS PORTIONS OF EAST CENTRAL KANSAS INTO CENTRAL MISSOURI WHERE RAINFALL TOTALS MAY APPROACH 1 OR 2 INCHES BY TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE THREAT OF THUNDERSTORMS WILL CONTINUE THROUGH EARLY WEDNESDAY MORNING...MAINLY SOUTH OF A LINE FROM PAOLA KANSAS TO BUTLER AND SEDALIA. THE STORMS ARE NOT EXPECTED TO BE SEVERE BUT COULD PRODUCE ADDITIONAL HEAVY RAINFALL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND THROUGH THE EVENING HOURS. SPOTTER REPORTS OF HEAVY RAINFALL WOULD BE APPRECIATED. DUX
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 5:46 AM CDT | Flash Flood Warning | EAX | Schuyler | 5 hr |
| Jul 8, 6:10 AM CDT | Flash Flood Warning | EAX | Putnam | 6 hr |
| Jul 8, 1:20 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 20 min |
| Jul 8, 1:59 PM CDT | Areal Flood Advisory | EAX | Jackson | 48 min |
| Jul 8, 2:18 PM CDT | Flash Flood Warning | EAX | Jackson | 3 hr |
| Jul 8, 2:21 PM CDT | Flash Flood Warning | EAX | Macon | 4 hr |
| Jul 8, 2:30 PM CDT | Areal Flood Advisory | EAX | Carroll, Lafayette, Ray | 6 hr |
| Jul 8, 3:09 PM CDT | Areal Flood Advisory | EAX | Carroll, Chariton, Saline | 6 hr |
| Jul 8, 3:32 PM CDT | Areal Flood Advisory | EAX | Chariton, Howard, Randolph | 6 hr |
| Jul 8, 3:57 PM CDT | Flash Flood Warning | EAX | Carroll, Chariton, Howard, Saline | 5 hr |
| Jul 8, 5:23 PM CDT | Areal Flood Advisory | EAX | Jackson | 3 hr |
| Jul 8, 4:51 PM CDT | Areal Flood Advisory | EAX | Leavenworth | 4 hr |
Nearby
Flash Flood Watches in Missouri, 2008Flash Flood Watches in Kansas, 2008Every flash flood watch in 2008
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.