Alert archive / Tennessee / Flash Flood Warnings in 2000

Flash Flood Warning 35, NWS Nashville, TN

August 1, 2000Montgomery County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 1, 2000, 1:21 PM CDT for Montgomery 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: Aug 1, 2000, 1:21 PM CDT (18:21 UTC)
Expired: Aug 1, 2000, 4:15 PM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Whole counties

County Montgomery County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.4 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: 700 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 695 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 011825
FFWOHX
TNC125-012115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
121 PM CDT TUE AUG 1 2000

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN MONTGOMERY COUNTY IN TENNESSEE

* UNTIL 415 PM CDT

* AT 114 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SERIES
  OF THUNDERSTORMS EXPECTED TO CONTINUE ACROSS NORTHERN MONTGOMERY
  COUNTY NEAR FT. CAMPBELL AND WEST OF THE CITY OF CLARKSVILLE.
  PORTIONS OF THIS AREA HAVE ALREADY RECEIVED MORE THAN 2 INCHES OF
  RAIN SINCE NOON.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN
DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT
IMMEDIATELY AND SEEK HIGHER GROUND.
$$

MAR

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 Aug 1, 10:00 AM CDT, 3 hours 21 minutes earlier.

Area forecast discussion, Aug 1, 10:00 AM CDT, 3 hours 21 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1000 AM CDT TUE AUG 1 2000

EXPECT MORNING CLOUDS TO BREAK INTO PARTLY SUNNY CONDITIONS FOR THE
AFTERNOON, WITH MORE SCTD AFTERNOON THUNDERSTORMS. THUS, DON'T EXPECT
TO MAKE ANY CONSEQUENTIAL CHANGES TO CURRENT ZFP PACKAGE.

12Z BNA RAOB STATS:  LI -5,  PWA 1.54,  TOTAL-TOTALS 45,

                     K-INDEX 28
.BNA...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 7:25 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon	35 min
Jul 31, 7:37 PM CDT	Flash Flood Warning	OHX	Lawrence	3 hr
Jul 31, 9:46 PM CDT	Severe Thunderstorm Warning	OHX	Franklin, Moore	29 min
Aug 1, 2:51 PM CDT	Flash Flood Warning	OHX	Wayne	3 hr
Aug 1, 3:06 PM CDT	Flash Flood Warning	OHX	White	3 hr

Nearby

Flash Flood Warnings in Tennessee, 2000 Every flash flood warning in 2000

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.