Alert archive / Tennessee / Flash Flood Warnings in 2002

Flash Flood Warning 34, NWS Nashville, TN

June 6, 2002Davidson County, Williamson County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 6, 2002, 2:54 AM CDT for Davidson County, Williamson 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: Jun 6, 2002, 2:54 AM CDT (07:54 UTC)
Expired: Jun 6, 2002, 5:45 AM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Davidson County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 34 km from the middle of the area, began a volume at 07:54 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, 7.9 hours before the alert went out and 24 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: 1600 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1442 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 060754
FFWBNA
TNC037-187-061045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
250 AM CDT THU JUN 6 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAVIDSON COUNTY IN TENNESSEE...
  INCLUDING THE CITIES OF...NASHVILLE...OAK HILL
  AND...FOREST HILLS...
  WILLIAMSON COUNTY IN TENNESSEE
  INCLUDING THE CITY OF FAIRVIEW

* UNTIL 545 AM CDT

* AT 242 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN EXTENDING FROM NORTHWEST WILLIAMSON COUNTY...AROUND FAIRVIEW...
  INTO DAVIDSON COUNTY...AROUND NASHVILLE. THIS AREA OF RAINFALL
  AREA WAS NEARLY STATIONARY...AND DOPPLER RADAR INDICATES THAT
  SOME ISOLATED SPOTS LIKELY RECEIVED BETWEEN 2 AND 3 INCHES
  OF RAIN BETWEEN MIDNIGHT AND 230 AM...AND ADDITIONAL HEAVY RAINS
  WILL CONTINUE THROUGH THE EARLY MORNING AREAS.

* A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS 
  IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS, RIVERS OR 
  CREEKS, WHICH CAN BECOME KILLERS DURING HEAVY RAINS. CAMPERS SHOULD 
  AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

$$
19
LAT...LON 3599 8716 3574 8673 3596 8664 3623 8666
          3634 8688 3602 8697

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 2:57 AM CDT	Flash Flood Warning	OHX	Davidson, Williamson	3 hr
Jun 6, 6:10 AM CDT	Flash Flood Warning	OHX	Sumner	110 min
Jun 6, 6:21 AM CDT	Flash Flood Warning	OHX	Davidson, Williamson	99 min

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.