Alert archive / Tennessee / Flash Flood Warnings in 1999

Flash Flood Warning 14, NWS Morristown, TN

July 7, 1999Monroe County, Tennessee; Cherokee County, North Carolina

NWS Morristown, TN issued this flash flood warning at Jul 7, 1999, 3:23 PM EDT for Monroe County, Tennessee; Cherokee County, North Carolina. 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 7, 1999, 3:23 PM EDT (19:23 UTC)
Expired
Jul 7, 1999, 6:25 PM EDT
In force
3 hr
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Cherokee County, NC, Monroe County, TN

The radar

The Knoxville radar (KMRX), 119 km from the middle of the area, began a volume at 19:22 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.4 hours before the alert went out and 216 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 1999-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 1999-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:01 PM EDTSevere Thunderstorm WarningMRXKnox34 min
Jul 7, 4:10 PM EDTSevere Thunderstorm WarningMRXHamblen, Hawkins50 min
Jul 7, 4:17 PM EDTSevere Thunderstorm WarningMRXGrainger48 min
Jul 7, 5:01 PM EDTSevere Thunderstorm WarningMRXGreene, Hawkins64 min
Jul 7, 5:16 PM EDTSevere Thunderstorm WarningMRXWashington49 min
Jul 7, 5:34 PM EDTSevere Thunderstorm WarningMRXBledsoe46 min
Jul 7, 6:08 PM EDTSevere Thunderstorm WarningMRXHamilton47 min
Jul 7, 7:20 PM EDTSevere Thunderstorm WarningMRXKnox35 min
Jul 7, 7:34 PM EDTSevere Thunderstorm WarningMRXLoudon51 min
Jul 7, 2:25 PM EDTSevere Thunderstorm WarningMRXCherokee50 min

Nearby

Flash Flood Warnings in Tennessee, 1999Flash Flood Warnings in North Carolina, 1999Every flash flood warning in 1999

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.