Alert archive / Missouri / Flash Flood Watches in 2008

Flash Flood Watch 10, NWS Kansas City, MO

June 26, 2008Chariton County, Missouri

NWS Kansas City, MO issued this flash flood watch at Jun 26, 2008, 11:01 PM CDT for Chariton County, Missouri. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jun 26, 2008, 11:01 PM CDT (04:01 UTC)
Expired
Jun 26, 2008, 11:46 PM CDT
In force
45 min
Issued by
NWS Kansas City, MO
Flood severity
None

County Chariton County, MO

The radar

The Pleasant Hill radar (KEAX), 137 km from the middle of the area, began a volume at 04:01 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, 4.0 hours before the alert went out and 237 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2008-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3854 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2008-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
3854 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1279 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
1.6
Supercell composite
14.1

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 Kansas City, MO wrote its last area forecast discussion before this flash flood watch went out at Jun 26, 6:34 PM CDT, 4 hours 27 minutes earlier.

Area forecast discussion, Jun 26, 6:34 PM CDT, 4 hours 27 minutes before
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Hazardous weather outlook, Jun 26, 1:13 PM CDT, 9 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
113 PM CDT THU JUN 26 2008

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-271100-
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-
113 PM CDT THU JUN 26 2008

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

ONGOING THUNDERSTORMS ACROSS NORTHERN MISSOURI WILL PERSIST THROUGH
THE AFTERNOON HOURS. THE MOST INTENSE THUNDERSTORMS ARE EXPECTED
TO BUILD SOUTHWEST TOWARD THE SAINT JOSEPH...ATCHISON AND EFFINGHAM
AREAS DURING THE AFTERNOON...WITH HEAVY RAIN AND DAMAGING WINDS THE
PRIMARY THREATS.  THUNDERSTORM ACTIVITY TRACKING EASTWARD ALONG
THE IOWA STATE LINE...WILL DIMINISH IN INTENSITY AS THEY MOVE INTO
A MORE STABLE AIRMASS...BUT STILL WILL BE CAPABLE OF PRODUCING
HEAVY RAINFALL. THUNDERSTORMS ACROSS NORTHERN MISSOURI AND NORTHEAST
KANSAS WILL BEGIN TO DIMINISH BY EARLY EVENING...WITH A LULL IN
THUNDERSTORM ACTIVITY EXPECTED DURING THE MID- TO LATE EVENING HOURS.

AFTER MIDNIGHT...AREAS FROM ALONG AND NORTH OF A LINE FROM MOUND
CITY MISSOURI TO CARROLLTON TO BOONVILLE COULD SEE MORE THUNDERSTORM
ACTIVITY AS ANOTHER COMPLEX OF STORMS FROM IOWA DROPS SOUTHEAST
THROUGH MISSOURI. THERE WILL BE A THREAT OF SOME SEVERE WEATHER WITH
THESE STORMS...MAINLY IN THE FORM OF LARGE HAIL AND DAMAGING WINDS.
HOWEVER...GIVEN RECENT RAINFALL TOTALS ACROSS NORTHERN
MISSOURI...THERE WILL BE AN ENHANCED RISK OF FLOODING FROM ANY OF THE
STORMS THAT MAY MOVE THROUGH OVERNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THREAT FOR MORE ORGANIZED THUNDERSTORMS...INCLUDING THE POSSIBILITY
OF SEVERE WEATHER...WILL MOVE ACROSS THE REGION FRIDAY AFTERNOON AND
NIGHT. LARGE HAIL...DAMAGING THUNDERSTORM WINDS...AND FLASH FLOODING
WILL BE THE MAIN THREATS FROM THESE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON INTO EARLY EVENING
ACROSS NORTHWEST MISSOURI AND NORTHEAST KANSAS.  ADDITIONAL SPOTTER
ACTIVATION IS POSSIBLE LATE TONIGHT ACROSS NORTH CENTRAL AND NORTHEAST
MISSOURI. SPOTTER ACTIVATION IS LIKELY ACROSS THE ENTIRE OUTLOOK AREA
FRIDAY INTO EARLY SATURDAY.

SF

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 10:57 PM CDTRiver Flood WarningEAXAndrew, Nodaway16 hr
Jun 27, 2:30 AM CDTRiver Flood WarningEAXAndrew, Buchanan36 hr
Jun 27, 2:09 PM CDTRiver Flood WarningEAXBuchanan39 hr

Nearby

Flash Flood Watches in Missouri, 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.