Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 4, NWS Nashville, TN

January 1, 2011Cumberland County, Fentress County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jan 1, 2011, 5:32 AM CST for Cumberland County, Fentress 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 outline as issued.

The facts

Issued
Jan 1, 2011, 5:32 AM CST (11:32 UTC)
Expired
Jan 1, 2011, 8:30 AM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

Counties Cumberland County, TN, Fentress County, TN

The radar

The Knoxville radar (KMRX), 139 km from the middle of the area, began a volume at 11:33 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

Nashville Metro, TN (KBNA), launched 00:00Z, 11.5 hours before the alert went out and 148 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, Nashville Metro, TN at 00:00Z on 2011-01-01Temperature 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, Nashville Metro, TN at 00:00Z on 2011-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 308 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
1460 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
308 m²/s²
0-3 km storm-relative helicity
364 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

755 
WGUS54 KOHX 011132
FFWOHX
TNC035-049-011430-
/O.NEW.KOHX.FF.W.0004.110101T1132Z-110101T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
532 AM CST SAT JAN 1 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CUMBERLAND COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF CROSSVILLE...
  FENTRESS COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF JAMESTOWN...

* UNTIL 830 AM CST/930 AM EST/

* AT 523 AM CST...HEAVY RAINFALL WAS OCCURRING OVER CUMBERLAND AND FENTRESS 
  COUNTIES. RAINFALL TOTALS OF TWO AND A HALF INCHES HAD FALLEN ACROSS
  CUMBERLAND AND FENTRESS COUNTIES DURING THE LAST COUPLE OF HOURS...AND
  MORE HEAVY RAIN IS EXPECTED TO FALL OVER THIS SAME AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FAIRFIELD
  GLADE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 3633 8477 3629 8479 3627 8487 3616 8489
      3609 8479 3591 8467 3582 8476 3577 8491
      3575 8502 3580 8525 3587 8521 3597 8526
      3611 8523 3611 8514 3620 8508 3631 8512
      3650 8508 3658 8495 3653 8473 3640 8465

$$

BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 12:44 AM CSTFlash Flood WarningOHXWayne3 hr
Jan 1, 1:03 AM CSTFlash Flood WarningOHXLawrence3 hr
Jan 1, 1:58 AM CSTFlash Flood WarningOHXGiles3 hr
Jan 1, 9:34 AM CSTRiver Flood WarningOHXBedford14 hr

Nearby

Flash Flood Warnings in Tennessee, 2011Every flash flood warning in 2011

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.