Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 11, NWS Nashville, TN

April 6, 2003Davidson County, Tennessee

NWS Nashville, TN issued this flash flood warning at Apr 6, 2003, 2:48 PM CDT for Davidson County, Tennessee. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 6, 2003, 2:48 PM CDT (19:48 UTC)
Expired: Apr 6, 2003, 4:45 PM CDT
In force: 117 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Davidson County, TN

The radar

The Nashville radar (KOHX), 27 km from the middle of the area, began a volume at 19:52 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 12:00Z, 7.8 hours before the alert went out and 23 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: 1528 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 304 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 061950
FFWBNA
TNC037-062145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
248 PM CDT SUN APR 6 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DAVIDSON COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF NASHVILLE

* UNTIL 445 PM CDT

* AT 242 PM CDT...WEATHER SERVICE DOPPLER RADAR SHOWED A LARGE AREA OF
  HEAVY THUNDERSTORM RAINS OVER MUCH OF WESTERN DAVIDSON COUNTY. THIS
  HEAVY RAIN WILL MOVE ACROSS ALL OF DAVIDSON COUNTY AND CREATE THE 
  LIKELIHOOD OF FLASH FLOODING THROUGH 445 PM THIS AFTERNOON. DOPPLER 
  RADAR INDICATES UP TO NEAR 1 INCH OF RAIN FELL IN DAVIDSON COUNTY EARLIER
  THIS AFTERNOON...AND ANY ADDITIONAL HEAVY RAIN WILL CREATE RUNOFF
  AND FLASH FLOODING.


&&

LAT...LON 3618 8692 3608 8690 3613 8664 3630 8687

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 9:32 AM CDT	Severe Thunderstorm Warning	OHX	Giles	28 min
Apr 6, 12:15 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, White	45 min
Apr 6, 12:58 PM CDT	Severe Thunderstorm Warning	OHX	Perry	47 min
Apr 6, 1:05 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	40 min
Apr 6, 1:17 PM CDT	Tornado Warning	OHX	Davidson, Robertson, Sumner	28 min
Apr 6, 1:25 PM CDT	Severe Thunderstorm Warning	OHX	Humphreys	35 min
Apr 6, 1:35 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	40 min
Apr 6, 1:40 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	50 min
Apr 6, 1:50 PM CDT	Severe Thunderstorm Warning	OHX	Dickson	40 min
Apr 6, 2:14 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham	46 min
Apr 6, 2:32 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	43 min
Apr 6, 3:01 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner, Wilson	44 min

Nearby

Flash Flood Warnings in Tennessee, 2003 Every flash flood warning in 2003

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.