Alert archive / Missouri / Flood Watches in 2008

Flood Watch 6, NWS Kansas City, MO

April 23, 200833 counties in Missouri; 5 counties in Kansas

NWS Kansas City, MO issued this flood watch at Apr 23, 2008, 4:09 AM CDT for 33 counties in Missouri; 5 counties in Kansas. It took effect at Apr 23, 2008, 7:00 PM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Apr 23, 2008, 4:09 AM CDT (09:09 UTC)
In effect from: Apr 23, 2008, 7:00 PM CDT
Expired: Apr 24, 2008, 9:33 AM CDT
In force: 15 hr
Issued by: NWS Kansas City, MO
Flood severity: None

All 38 counties

Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair 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, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer 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), 82 km from the middle of the area, began a volume at 09:09 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

Springfield, MO (KSGF), launched 00:00Z, 9.2 hours before the alert went out and 285 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: 665 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1368 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

Open this sounding in Storm Lab

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 23, 3:46 AM CDT, 23 minutes earlier.

Area forecast discussion, Apr 23, 3:46 AM CDT, 23 minutes before

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Hazardous weather outlook, Apr 22, 12:49 PM CDT, 15 hours 20 minutes before

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In the hours before

Local storm report, Apr 23, 2:20 AM CDT, 1 hour 49 minutes before

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Local storm report, Apr 23, 2:21 AM CDT, 1 hour 48 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 4:42 PM CDT	Areal Flood Advisory	EAX	Buchanan, Platte	6 hr
Apr 23, 5:33 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	27 min
Apr 23, 6:08 PM CDT	Areal Flood Advisory	EAX	Andrew, Bates, Cass, Clay, Clinton, DeKalb and 1 more	5 hr
Apr 23, 6:28 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette, Ray	47 min
Apr 23, 6:38 PM CDT	Flash Flood Warning	EAX	Clay, Clinton, Platte	5 hr
Apr 23, 6:59 PM CDT	Flash Flood Warning	EAX	Jackson	5 hr
Apr 23, 5:02 PM CDT	Areal Flood Advisory	EAX	Linn, Miami	5 hr
Apr 23, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Linn	33 min

Nearby

Flood Watches in Missouri, 2008 Flood Watches in Kansas, 2008 Every 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.