Alert archive / Missouri / Flash Flood Watches in 2009

Flash Flood Watch 14, NWS Kansas City, MO

October 29, 200926 counties in Missouri; Linn County, Kansas

NWS Kansas City, MO issued this flash flood watch at Oct 29, 2009, 10:38 AM CDT for 26 counties in Missouri; Linn County, Kansas. It took effect at Oct 29, 2009, 11:00 AM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Oct 29, 2009, 10:38 AM CDT (15:38 UTC)
In effect from: Oct 29, 2009, 11:00 AM CDT
Expired: Oct 30, 2009, 2:09 AM CDT
In force: 15 hr
Issued by: NWS Kansas City, MO
Flood severity: None

All 27 counties

Linn County, KS, Adair County, MO, Bates County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Cooper County, MO, Daviess 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, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO

The radar

The Pleasant Hill radar (KEAX), 99 km from the middle of the area, began a volume at 15:41 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, 3.6 hours before the alert went out and 193 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 551 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 525 m²/s²
0-3 km storm-relative helicity: 558 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 Oct 29, 6:49 AM CDT, 3 hours 49 minutes earlier.

Area forecast discussion, Oct 29, 6:49 AM CDT, 3 hours 49 minutes before

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Hazardous weather outlook, Oct 29, 6:00 AM CDT, 4 hours 38 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
Oct 29, 8:42 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	37 hr
Oct 29, 8:42 AM CDT	River Flood Warning	EAX	Bates, Cass, Henry	48 hr
Oct 29, 1:25 PM CDT	River Flood Warning	EAX	Carroll	34 hr
Oct 29, 2:35 PM CDT	River Flood Warning	EAX	Johnson, Pettis	33 hr
Oct 29, 3:39 PM CDT	Areal Flood Warning	EAX	Adair, Carroll, Chariton, Johnson, Lafayette, Linn and 7 more	51 hr
Oct 29, 3:47 PM CDT	River Flood Warning	EAX	Chariton, Macon	38 hr
Oct 29, 3:47 PM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	3 days
Oct 29, 5:27 PM CDT	Areal Flood Advisory	EAX	Cass, Clay, Jackson, Johnson, Lafayette, Platte	4 hr
Oct 29, 5:45 PM CDT	Flash Flood Warning	EAX	Clay, Jackson, Platte	3 hr

Nearby

Flash Flood Watches in Missouri, 2009 Flash Flood Watches in Kansas, 2009 Every flash 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.