Alert archive / Tennessee / Flash Flood Warnings in 2019

Flash Flood Warning 15, NWS Morristown, TN

July 13, 2019McMinn County, Meigs County, Tennessee

NWS Morristown, TN issued this flash flood warning at Jul 13, 2019, 6:57 PM EDT for McMinn County, Meigs County, Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 13, 2019, 6:57 PM EDT (22:57 UTC)
Expired: Jul 13, 2019, 10:00 PM EDT
In force: 3 hr
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Flood severity: None

Counties McMinn County, TN, Meigs County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 hours before the alert went out and 185 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: 1568 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Jul 12, 7:52 PM EDT, 23 hours 5 minutes earlier.

Area forecast discussion, Jul 12, 7:52 PM EDT, 23 hours 5 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 13, 12:42 PM EDT	Special Weather Statement	MRX	Morgan	33 min
Jul 13, 1:23 PM EDT	Areal Flood Advisory	MRX	Morgan	3 hr
Jul 13, 2:58 PM EDT	Special Weather Statement	MRX	Jefferson	47 min
Jul 13, 3:20 PM EDT	Special Weather Statement	MRX	Blount	40 min
Jul 13, 3:41 PM EDT	Special Weather Statement	MRX	Cocke	34 min
Jul 13, 3:44 PM EDT	Special Weather Statement	MRX	Sevier	46 min
Jul 13, 4:30 PM EDT	Areal Flood Advisory	MRX	Cocke, Sevier	2 hr
Jul 13, 5:59 PM EDT	Flash Flood Warning	MRX	McMinn, Monroe	3 hr

Nearby

Flash Flood Warnings in Tennessee, 2019 Every flash flood warning in 2019

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.