Alert archive / Tennessee / Flash Flood Warnings in 2016

Flash Flood Warning 155, NWS Memphis, TN

December 24, 20168 counties in Tennessee

NWS Memphis, TN issued this flash flood warning at Dec 24, 2016, 2:35 AM CST for 8 counties in Tennessee. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Dec 24, 2016, 2:35 AM CST (08:35 UTC)
Expired
Dec 24, 2016, 8:30 AM CST
In force
6 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Carroll County, TN, Crockett County, TN, Fayette County, TN, Gibson County, TN, Haywood County, TN, Lauderdale County, TN, Madison County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 80 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

Little Rock, AR (KBYH), launched 00:00Z, 8.6 hours before the alert went out and 115 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, Little Rock, AR at 00:00Z on 2016-12-24Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2016-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 507 square meters per square second.1939587897Sfc1 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
511 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
507 m²/s²
0-3 km storm-relative helicity
521 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

763 
WGUS54 KMEG 240835
FFWMEG
TNC017-033-047-053-075-097-113-167-241430-
/O.NEW.KMEG.FF.W.0155.161224T0835Z-161224T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
235 AM CST SAT DEC 24 2016

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Eastern Tipton County in western Tennessee...
  Haywood County in western Tennessee...
  Northern Fayette County in western Tennessee...
  Southwestern Carroll County in western Tennessee...
  Southeastern Gibson County in western Tennessee...
  Southeastern Lauderdale County in western Tennessee...
  Southern Crockett County in western Tennessee...
  Madison County in western Tennessee...

* Until 830 AM CST

* At 234 AM CST...Doppler Radar estimates 1 to 3 inches of rain has
  occurred over the past 3 hours. Showers and thunderstorms will
  produce an additional 2 to 3 inches of rain over the next 6 hours.

* Some locations that will experience flooding include...
  Jackson, Brownsville, Covington, Humboldt, Milan, Arlington,
  Fairview, Alamo, Bells, Three Way, Belle Eagle, Hillville, Adair,
  Nutbush, Mercer, Bemis, Dancyville, Holly Grove, Carroll and
  Medina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3556 8862 3554 8863 3543 8905 3543 8918
      3539 8919 3522 8964 3564 8963 3597 8860

$$
1 follow-up statement
385 
WGUS74 KMEG 241425
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
825 AM CST SAT DEC 24 2016

TNC017-033-047-053-075-097-113-167-241432-
/O.EXP.KMEG.FF.W.0155.000000T0000Z-161224T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tipton TN-Haywood TN-Fayette TN-Carroll TN-Gibson TN-Lauderdale TN-
Crockett TN-Madison TN-
825 AM CST SAT DEC 24 2016

...THE FLASH FLOOD WARNING FOR EASTERN TIPTON...HAYWOOD...NORTHERN
FAYETTE...SOUTHWESTERN CARROLL...SOUTHEASTERN GIBSON...SOUTHEASTERN
LAUDERDALE...SOUTHERN CROCKETT AND MADISON COUNTIES WILL EXPIRE AT
830 AM CST...

Rain will continue across the warning area into the afternoon hours,
but rainfall rates have decreased. This will diminish the flash
flood threat. Thus, the Flash Flood Warning will be allowed
toexpire. Please continue to heed any remaining road closures.

LAT...LON 3556 8862 3554 8863 3543 8905 3543 8918
      3539 8919 3522 8964 3564 8963 3597 8860

$$

JOHNSON

Nearby

Flash Flood Warnings in Tennessee, 2016Every flash flood warning in 2016

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.