Alert archive / Missouri / Flash Flood Watches in 2013

Flash Flood Watch 6, NWS Springfield, MO

August 12, 201334 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas

NWS Springfield, MO issued this flash flood watch at Aug 12, 2013, 3:33 AM CDT for 34 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas. It took effect at Aug 12, 2013, 7:00 AM CDT. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued: Aug 12, 2013, 3:33 AM CDT (08:33 UTC)
In effect from: Aug 12, 2013, 7:00 AM CDT
Expired: Aug 13, 2013, 3:35 AM CDT
In force: 21 hr
Issued by: NWS Springfield, MO
Flood severity: None

All 37 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 30 km from the middle of the area, began a volume at 08:37 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 (KFOE), launched 00:00Z, 8.6 hours before the alert went out and 279 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: 272 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1457 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Springfield, MO wrote its last area forecast discussion before this flash flood watch went out at Aug 12, 3:14 AM CDT, 19 minutes earlier.

Area forecast discussion, Aug 12, 3:14 AM CDT, 19 minutes before

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Hazardous weather outlook, Aug 11, 7:49 PM CDT, 7 hours 44 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 10:02 AM CDT	Special Weather Statement	SGF	Greene	28 min
Aug 12, 10:09 AM CDT	Severe Thunderstorm Warning	SGF	Greene	51 min
Aug 12, 10:33 AM CDT	Special Weather Statement	SGF	Greene	27 min
Aug 12, 10:44 AM CDT	Areal Flood Advisory	SGF	Greene	3 hr
Aug 12, 12:58 PM CDT	Areal Flood Advisory	SGF	Dent, Phelps	6 hr
Aug 12, 1:28 PM CDT	Areal Flood Advisory	SGF	Ozark	3 hr

Nearby

Flash Flood Watches in Missouri, 2013 Flash Flood Watches in Kansas, 2013 Every flash flood watch in 2013

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.