Alert archive / Tennessee / Flash Flood Warnings in 2002

Flash Flood Warning 22, NWS Nashville, TN

March 18, 200214 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Mar 18, 2002, 4:45 AM CST for 14 counties in Tennessee. It was in force for 4 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: Mar 18, 2002, 4:45 AM CST (10:45 UTC)
Expired: Mar 18, 2002, 8:45 AM CST
In force: 4 hr
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Bedford County, TN, Coffee County, TN, Cumberland County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Lawrence County, TN, Lincoln County, TN, Marshall County, TN, Moore County, TN, Van Buren County, TN, Warren County, TN, White County, TN

The radar

The Northeast Alabama radar (KHTX), 67 km from the middle of the area, began a volume at 10:44 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, 10.8 hours before the alert went out and 81 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 606 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 145 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.

000 
WGUS54 KOHX 181045
FFWBNA
TNC003-031-035-049-051-055-061-099-103-117-127-175-177-185-181445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
440 AM CST MON MAR 18 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES IN TENNESSEE...
  BEDFORD 
  COFFEE  
  CUMBERLAND 
  FENTRESS  
  FRANKLIN 
  GILES
  GRUNDY 
  LAWRENCE 
  LINCOLN 
  MARSHALL 
  MOORE
  VAN BUREN 
  WARREN 
  WHITE
  
* UNTIL 845 AM CST

* AT 438 AM CST...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY
  RAIN CONTINUING ACROSS MUCH OF THE WARNING AREA WITH PRECIPITATION
  EXTENDING BACK INTO NORTHERN PORTIONS OF MISSISSIPPI.

A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. MOST
FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES,
DIPS, OR OTHER LOW SPOTS IF WATER COVERS THE ROAD. NEVER TRY TO CROSS
A FLOWING STREAM, EVEN A SMALL ONE, ON FOOT. TO ESCAPE RISING WATER,
MOVE TO HIGHER GROUND.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 6:40 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Wilson	50 min
Mar 17, 7:16 PM CST	Severe Thunderstorm Warning	OHX	Rutherford, Williamson, Wilson	44 min
Mar 17, 7:51 PM CST	Flash Flood Warning	OHX	Benton, Cheatham, Davidson, Dickson, Hickman, Humphreys and 2 more	3 hr
Mar 17, 8:00 PM CST	Flash Flood Warning	OHX	Clay, Jackson, Macon, Smith, Sumner, Trousdale and 1 more	3 hr
Mar 17, 8:21 PM CST	Flash Flood Warning	OHX	Clay, Jackson, Macon, Rutherford, Smith, Sumner and 2 more	3 hr
Mar 17, 9:08 PM CST	Flash Flood Warning	OHX	Fentress, Overton, Pickett	3 hr
Mar 17, 9:29 PM CST	Flash Flood Warning	OHX	Bedford, Cannon, Coffee, DeKalb, Giles, Lincoln and 6 more	3 hr
Mar 17, 10:13 PM CST	Flash Flood Warning	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 36 more	6 hr
Mar 18, 4:26 AM CST	Flash Flood Warning	OHX	Bedford, Coffee, Cumberland, Fentress, Franklin, Giles and 8 more	4 hr

Nearby

Flash Flood Warnings in Tennessee, 2002 Every flash flood warning in 2002

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.