Alert archive / Tennessee / Flash Flood Warnings in 2002

Flash Flood Warning 8, NWS Morristown, TN

January 23, 2002McMinn County, Tennessee

NWS Morristown, TN issued this flash flood warning at Jan 23, 2002, 2:57 PM EST for McMinn 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
Jan 23, 2002, 2:57 PM EST (19:57 UTC)
Expired
Jan 23, 2002, 5:45 PM EST
In force
3 hr
Issued by
NWS Morristown, TN
Area
Whole counties

County McMinn County, TN

The radar

The Knoxville radar (KMRX), 137 km from the middle of the area, began a volume at 20:00 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, 8.0 hours before the alert went out and 195 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2002-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2002-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 531 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
636 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
531 m²/s²
0-3 km storm-relative helicity
502 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 231957
FFWMRX
TNC107-232245-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
251 PM EST WED JAN 23 2002

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* FLOOD WARNING FOR...
  MCMINN COUNTY IN EAST TENNESSEE

* UNTIL 545 PM EST

* AT 248 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT THE BULK OF THE RAIN WAS MOVING OUT OF MCMINN COUNTY.         
  HOWEVER...IT WILL TAKE SEVERAL MORE HOURS FOR THE WATER ON THE     
  GROUND TO RECEDE.  WATER MAY ACTUALLY RISE DURING THIS PERIOD.

* LOCATIONS IN THE WARNING INCLUDE...
  RICEVILLE...ETOWAH...HILLSVIEW...ATHENS...CLEAR WATER...
  ENGLEWOOD...NIOTA

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

$$

LAT...LON 3537 8484 3527 8471 3533 8443 3565 8458

SP

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 23, 9:34 AM ESTFlash Flood WarningMRXAnderson, Knox, Loudon, Meigs, Morgan, Rhea and 1 more116 min
Jan 23, 11:32 AM ESTFlash Flood WarningMRXAnderson, Knox, Loudon, Meigs, Morgan, Rhea and 1 more3 hr
Jan 23, 12:14 PM ESTFlash Flood WarningMRXCampbell, Scott3 hr
Jan 23, 1:12 PM ESTFlash Flood WarningMRXMcMinn108 min
Jan 23, 1:19 PM ESTFlash Flood WarningMRXMonroe116 min
Jan 23, 1:51 PM ESTFlash Flood WarningMRXBlount3 hr
Jan 23, 2:30 PM ESTFlash Flood WarningMRXAnderson, Knox, Loudon, Meigs, Morgan, Rhea and 1 more3 hr
Jan 23, 3:16 PM ESTFlash Flood WarningMRXCampbell, Monroe, Scott3 hr

Nearby

Flash Flood Warnings in Tennessee, 2002Every 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.