Alert archive / Missouri / Flash Flood Watches in 2020

Flash Flood Watch 9, NWS Springfield, MO

July 29, 202021 counties in Missouri

NWS Springfield, MO issued this flash flood watch at Jul 29, 2020, 2:47 PM CDT for 21 counties in Missouri. It took effect at Jul 29, 2020, 7:00 PM CDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Jul 29, 2020, 2:47 PM CDT (19:47 UTC)
In effect from: Jul 29, 2020, 7:00 PM CDT
Expired: Jul 30, 2020, 7:29 PM CDT
In force: 24 hr
Issued by: NWS Springfield, MO
Flood severity: None

All 21 counties

Barry County, MO, Christian County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Pulaski County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 55 km from the middle of the area, began a volume at 19:50 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, 7.8 hours before the alert went out and 326 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: 749 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 809 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Jul 29, 12:15 PM CDT, 2 hours 32 minutes earlier.

Area forecast discussion, Jul 29, 12:15 PM CDT, 2 hours 32 minutes before

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Hazardous weather outlook, Jul 29, 4:34 AM CDT, 10 hours 13 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
Jul 29, 12:19 PM CDT	Areal Flood Advisory	SGF	Lawrence	6 hr

Nearby

Flash Flood Watches in Missouri, 2020 Every flash flood watch in 2020

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.