Alert archive / Missouri / Flash Flood Watches in 2009

Flash Flood Watch 9, NWS Kansas City, MO

June 9, 200933 counties in Missouri; 6 counties in Kansas

NWS Kansas City, MO issued this flash flood watch at Jun 9, 2009, 3:56 AM CDT for 33 counties in Missouri; 6 counties in Kansas. It took effect at Jun 9, 2009, 7:00 PM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Jun 9, 2009, 3:56 AM CDT (08:56 UTC)
In effect from: Jun 9, 2009, 7:00 PM CDT
Expired: Jun 10, 2009, 3:47 AM CDT
In force: 9 hr
Issued by: NWS Kansas City, MO
Flood severity: None

All 39 counties

Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew 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, 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), 93 km from the middle of the area, began a volume at 09:01 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

Springfield, MO (KSGF), launched 00:00Z, 8.9 hours before the alert went out and 300 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: 3121 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 771 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.4

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 9, 2:29 AM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Jun 9, 2:29 AM CDT, 1 hour 27 minutes before

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Hazardous weather outlook, Jun 8, 1:00 PM CDT, 14 hours 56 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
Jun 9, 10:03 AM CDT	Severe Thunderstorm Warning	EAX	Cass	27 min
Jun 9, 10:11 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	34 min
Jun 9, 10:21 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	24 min
Jun 9, 10:25 AM CDT	Severe Thunderstorm Warning	EAX	Bates	35 min
Jun 9, 10:43 AM CDT	Special Weather Statement	EAX	Jackson	32 min
Jun 9, 10:44 AM CDT	Special Weather Statement	EAX	Henry	46 min
Jun 9, 10:50 AM CDT	Special Weather Statement	EAX	Jackson	25 min
Jun 9, 11:13 AM CDT	Severe Thunderstorm Warning	EAX	Henry	32 min
Jun 9, 11:43 AM CDT	Severe Thunderstorm Warning	EAX	Henry	32 min
Jun 9, 11:53 AM CDT	Severe Thunderstorm Warning	EAX	Platte	37 min
Jun 9, 12:01 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	29 min
Jun 9, 12:21 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson	24 min
Jun 9, 12:28 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	32 min
Jun 9, 12:38 PM CDT	Areal Flood Advisory	EAX	Cass, Clay, Jackson, Platte	6 hr
Jun 9, 12:43 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	32 min
Jun 9, 12:46 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	19 min
Jun 9, 12:50 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	25 min
Jun 9, 12:59 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	31 min
Jun 9, 1:08 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	22 min
Jun 9, 1:09 PM CDT	Special Weather Statement	EAX	Jackson	36 min
Jun 9, 1:27 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Henry, Jackson, Johnson	33 min
Jun 9, 1:30 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	30 min
Jun 9, 1:50 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry, Johnson	25 min
Jun 9, 1:52 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson	23 min
Jun 9, 2:04 PM CDT	Areal Flood Advisory	EAX	Cass, Johnson	6 hr
Jun 9, 2:17 PM CDT	Special Weather Statement	EAX	Henry, Johnson, Pettis	28 min
Jun 9, 2:30 PM CDT	Severe Thunderstorm Warning	EAX	Henry	30 min
Jun 9, 2:40 PM CDT	Severe Thunderstorm Warning	EAX	Pettis	35 min
Jun 9, 2:47 PM CDT	Areal Flood Advisory	EAX	Henry	3 hr
Jun 9, 3:56 PM CDT	River Flood Warning	EAX	Carroll, Chariton	18 hr
Jun 9, 10:08 AM CDT	Special Weather Statement	EAX	Johnson	37 min
Jun 9, 11:09 AM CDT	Special Weather Statement	EAX	Leavenworth	36 min
Jun 9, 11:38 AM CDT	Special Weather Statement	EAX	Johnson	37 min
Jun 9, 12:37 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	23 min
Jun 9, 12:40 PM CDT	Special Weather Statement	EAX	Wyandotte	35 min
Jun 9, 1:24 PM CDT	Severe Thunderstorm Warning	EAX	Linn	36 min
Jun 9, 6:19 PM CDT	Special Weather Statement	EAX	Linn	26 min

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.