Alert archive / Tennessee / Flash Flood Warnings in 2004

Flash Flood Warning 90, NWS Nashville, TN

November 30, 20045 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Nov 30, 2004, 1:22 PM CST for 5 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 outline as issued.

The facts

Issued: Nov 30, 2004, 1:22 PM CST (19:22 UTC)
Expired: Nov 30, 2004, 5:15 PM CST
In force: 4 hr
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Bedford County, TN, Cannon County, TN, Coffee County, TN, Marshall County, TN, Warren County, TN

The radar

The Northeast Alabama radar (KHTX), 70 km from the middle of the area, began a volume at 19:23 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.4 hours before the alert went out and 71 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: 519 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 518 m²/s²
0-3 km storm-relative helicity: 554 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 301925
FFWOHX
TNC003-015-031-117-177-302315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
122 PM CST TUE NOV 30 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BEDFORD COUNTY IN TENNESSEE
  CANNON COUNTY IN TENNESSEE
  COFFEE COUNTY IN TENNESSEE
  MARSHALL COUNTY IN TENNESSEE
  WARREN COUNTY IN TENNESSEE
  THIS INCLUDES THE CITIES OF SHELBYVILLE...LEWISBURG...MANCHESTER AND 
  MCMINNVILLE

* UNTIL 515 PM CST

* AT 110 PM CST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED WATER WAS 
  OVERFLOWING SEVERAL ROADS IN THE AREA WITH SOME ROADS BECOMING 
  IMPASSABLE. DOPPLER RADAR ESTIMATES ONE TO 1.5 INCHES OF RAINFALL
  HAVE FALLEN OVER THE WARNED AREA WITH AN ADDITIONAL INCH OF RAIN
  EXPECTED BEFORE RAINFALL DIMINISHES.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  WARTRACE...NORMANDY...MORRISON...CENTERTOWN AND BELL BUCKLE.

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. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3545 8682 3528 8675 3537 8661 3535 8643
      3576 8556 3591 8574

$$

JLM

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this flash flood warning went out at Nov 30, 12:10 PM CST, 1 hour 12 minutes earlier.

Area forecast discussion, Nov 30, 12:10 PM CST, 1 hour 12 minutes before

AREA FORECAST DISCUSSION.
NATIONAL WEATHER SERVICE NASHVILLE TN
1210 PM CST TUE NOV 30 2004

.DISCUSSION...
WARM FRONT HAS MOVED NORTH OF BNA. SCATTERED THUNDERSTORMS THIS
AFTERNOON...WITH FLOODING LIKELY IN THE WATCH AREA. UPDATED FORECAST TO
INCREASE FLOOD THREAT.

&&

.BNA WATCHES/WARNINGS/ADVISORIES...
FLOOD WATCH CONTINUES EAST OF A SPRINGFIELD TO WAYNESBORO LINE INTO
THIS EVENING.

&&

04

Hazardous weather outlook, Nov 30, 5:23 AM CST, 7 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
523 AM CST TUE NOV 30 2004

TNZ005>011-022>034-056>066-075-077>080-093>095-011030-
BEDFORD-BENTON-CANNON-CHEATHAM-CLAY-COFFEE-CUMBERLAND-DAVIDSON-
DEKALB-DICKSON-FENTRESS-GILES-GRUNDY-HICKMAN-HOUSTON-HUMPHREYS-
JACKSON-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-OVERTON-PERRY-
PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-
VAN BUREN-WARREN-WAYNE-WHITE-WILLIAMSON-WILSON-
523 AM CST TUE NOV 30 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY

A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE TENNESSEE VALLEY
TODAY AND EARLY TONIGHT AND PRODUCE WIDESPREAD RAIN...ALONG WITH
THE POSSIBILITY OF LOCALIZED FLOODING OVER PARTS OF MIDDLE TENNESSEE.
A FLOOD WATCH IS IN EFFECT THROUGH EARLY TONIGHT FOR AREAS EAST OF A
SPRINGFIELD TO WAYNESBORO LINE. RAIN TOTALS BETWEEN ONE AND HALF AND
TWO INCHES WILL BE COMMON IN THE WATCH AREA...WITH SOME HIGHER
AMOUNTS POSSIBLE.

RAINFALL WILL LIKELY PRODUCE PONDING OF WATER ON ROADS AND IN
SOME POORLY DRAINED AREAS. SOME RIVERS AND STREAMS MAY ALSO RISE TO
NEAR BANKFULL.

ISOLATED THUNDERSTORMS ARE ALSO POSSIBLE THROUGH EARLY TONIGHT...
AND A FEW COULD PRODUCE STRONG...GUSTY WINDS...ESPECIALLY IN
AREAS NEAR THE ALABAMA BORDER.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

19

In the hours before

Local storm report, Nov 30, 12:30 PM CST, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1230 PM CST TUE NOV 30 2004

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     FLASH FLOOD      LAWRENCEBURG            35.25N 87.34W
11/30/2004                   LAWRENCE           TN   DEPT OF HIGHWAYS

            TDOT REPORTED BRUSH CREEK ROAD IN THE WESTERN PART OF THE
            COUNTY AND MILLER LANE IN THE NORTHERN PART HAD HIGH
            WATER.

1205 PM     FLASH FLOOD      HOHENWALD               35.55N 87.56W
11/30/2004                   LEWIS              TN   DEPT OF HIGHWAYS

            TDOT REPORTED NUMEROUS ROADS ARE UNDER HIGH WATER AND
            IMPASSABLE AROUND THE COUNTY. CAUTIONARY SIGNS ARE ON
            BRIDGES AT THIS TIME.

1205 PM     FLASH FLOOD      COLUMBIA                35.62N 87.05W
11/30/2004                   MAURY              TN   DEPT OF HIGHWAYS

            TDOT REPORTED SOME HIGH WATER WAS OCCURRING ON SOME ROADS
            IN THE NORTHERN PART OF THE COUNTY.

1210 PM     FLASH FLOOD      WAYNESBORO              35.32N 87.76W
11/30/2004                   WAYNE              TN   EMERGENCY MNGR

            EMA DIRECTOR REPORTED ROADS ALONG THE GREEN RIVER AND
            INDIAN CREEK WERE FLOODING. SCATTERED AREAS IN WAYNE
            COUNTY HAD SOME HIGH WATER ON ROADS. SCHOOL WERE LETTING
            OUT AS OF 1130 AM CST IN WAYNE COUNTY.

1220 PM     FLASH FLOOD      4 N CARTHAGE            36.31N 85.94W
11/30/2004                   SMITH              TN   TRAINED SPOTTER

            SPOTTER REPORTED INTERSECTION OF HIGHWAY 85 AND TURKEY
            CREEK ROAD WAS FLOODED AND UNDER WATER. DITCHES AND
            CULVERTS WERE SPILLING WATER ON OTHER ROADWAYS IN SMITH
            COUNTY.

&&

ORCHANIAN

Local storm report, Nov 30, 1:07 PM CST, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
107 PM CST TUE NOV 30 2004

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1255 PM     FLASH FLOOD      10 SE NASHVILLE         36.07N 86.66W
11/30/2004                   DAVIDSON           TN   EMERGENCY MNGR

            DAVIDSON COUNTY OEM REPORTED INTERSECTION OF BELL ROAD
            AND SMITH SPRINGS ROAD WAS IMPASSABLE DUE TO HIGH WATER
            IN THE ANTIOCH SECTION OF NASHVILLE. ALSO...INTERSECTION
            OF NOLENSVILLE ROAD AND CULBERTSON ROAD HAD HIGH WATER.

&&

ORCHANIAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 10:19 AM CST	Flash Flood Warning	OHX	Lawrence, Lewis, Maury, Wayne	4 hr
Nov 30, 11:54 AM CST	Flash Flood Warning	OHX	Davidson, Rutherford, Smith, Williamson, Wilson	4 hr
Nov 30, 12:18 PM CST	Flash Flood Warning	OHX	Clay, Cumberland, DeKalb, Fentress, Jackson, Overton and 3 more	4 hr
Nov 30, 1:50 PM CST	Severe Thunderstorm Warning	OHX	Davidson, Macon, Sumner, Trousdale, Wilson	35 min
Nov 30, 3:46 PM CST	Flash Flood Warning	OHX	Davidson, Rutherford, Smith, Williamson, Wilson	3 hr
Nov 30, 4:15 PM CST	Flash Flood Warning	OHX	Clay, Cumberland, DeKalb, Fentress, Jackson, Overton and 3 more	3 hr
Nov 30, 5:39 PM CST	Flash Flood Warning	OHX	Bedford, Cannon, Coffee, Giles, Grundy, Marshall and 2 more	3 hr

Nearby

Flash Flood Warnings in Tennessee, 2004 Every flash flood warning in 2004

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.