Alert archive / Tennessee / Flash Flood Warnings in 2000

Flash Flood Warning 2, NWS Morristown, TN

April 3, 20005 counties in Tennessee

NWS Morristown, TN issued this flash flood warning at Apr 3, 2000, 9:45 PM CDT for 5 counties in Tennessee. It was in force for 6 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: Apr 3, 2000, 9:45 PM CDT (02:45 UTC)
Expired: Apr 4, 2000, 4:00 AM CDT
In force: 6 hr
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Bledsoe County, TN, Hamilton County, TN, Marion County, TN, Rhea County, TN, Sequatchie County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.8 hours before the alert went out and 147 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: 599 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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 KMRX 040252
FFWMRX
TNC007-065-115-143-153-040900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
945 PM CDT MON APR 3 2000

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BLEDSOE COUNTY IN EASTERN TENNESSEE
  HAMILTON COUNTY IN EASTERN TENNESSEE
  MARION COUNTY IN EASTERN TENNESSEE
  RHEA COUNTY IN EASTERN TENNESSEE
  SEQUATCHIE COUNTY IN EASTERN TENNESSEE

* UNTIL 400 AM CDT(500 AM EDT)

* AT 945 PM CDT(1045 PM EDT)...NATIONAL WEATHER SERVICE RADARS 
CONTINUE TO SHOW A LARGE AREA OF MODERATE RAINFALL CONTINUING TO 
DEVELOP OVER ALABAMA...GEORGIA AND EAST TENNESSEE. THE AREA OF RAIN 
PRODUCING THE FLASH FLOOD WAS MOVING NORTHEAST AT 30 MPH. MOST OF 
THE WARNED AREAS HAVE RECEIVED THREE TO FOUR INCHES OF RAINFALL 
SINCE LATE SUNDAY. LOCALIZED AMOUNTS NEAR SIX INCHES HAVE BEEN 
REPORTED. AN ADDITIONAL ONE HALF TO ONE INCH OF RAIN IS EXPECTED 
OVERNIGHT.

TEMA HAS REPORTED SOME FLOODING OF STRUCTURES IN THE WARNED AREA
...AND EVALUATIONS WERE NECESSARY. WIDESPREAD STREET FLOODING
AND ROAD CLOSURES HAVE BEEN REPORTED BY SEVERAL SOURCES.

EXCESSIVE RUNOFF FROM THIS STORM SYSTEM WILL CAUSE FLASH FLOODING OF 
SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY 
COUNTRY ROADS...FARMLANDS...AND OTHER LOW LYING AREAS THAT ARE 
SUBJECT TO FLASH FLOODING. DO NOT ATTEMPT TO CROSS 
BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS.

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.

$$

SON

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 11:48 PM CDT	Flash Flood Warning	MRX	Anderson, Knox, Morgan, Roane	4 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.