Alert archive / Missouri / Flash Flood Watches in 2007

Flash Flood Watch 8, NWS Springfield, MO

August 19, 200723 counties in Missouri

NWS Springfield, MO issued this flash flood watch at Aug 19, 2007, 3:53 PM CDT for 23 counties in Missouri. It took effect at Aug 19, 2007, 9:00 PM CDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Aug 19, 2007, 3:53 PM CDT (20:53 UTC)
In effect from: Aug 19, 2007, 9:00 PM CDT
Expired: Aug 20, 2007, 9:42 AM CDT
In force: 13 hr
Issued by: NWS Springfield, MO
Flood severity: None

All 23 counties

Barry County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Hickory 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, Polk County, MO, Pulaski County, MO, Stone County, MO, Taney County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 29 km from the middle of the area, began a volume at 20:54 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 12:00Z, 8.9 hours before the alert went out and 80 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: 693 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1118 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 19, 2:45 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Aug 19, 2:45 PM CDT, 1 hour 8 minutes before

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Hazardous weather outlook, Aug 19, 2:30 PM CDT, 1 hour 23 minutes before

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In the hours before

Local storm report, Aug 19, 1:12 PM CDT, 2 hours 41 minutes before

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Local storm report, Aug 19, 2:36 PM CDT, 1 hour 17 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 19, 2:19 PM CDT	Severe Thunderstorm Warning	SGF	Greene	34 min

Nearby

Flash Flood Watches in Missouri, 2007 Every flash flood watch in 2007

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.