Alert archive / Tennessee / Flash Flood Warnings in 1996

Flash Flood Warning 52, NWS Morristown, TN

December 1, 1996Campbell County, Claiborne County, Tennessee

NWS Morristown, TN issued this flash flood warning at Dec 1, 1996, 8:55 AM EST for Campbell County, Claiborne 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
Dec 1, 1996, 8:55 AM EST (13:55 UTC)
Expired
Dec 1, 1996, 12:00 PM EST
In force
3 hr
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Campbell County, TN, Claiborne County, TN

The radar

The Knoxville radar (KMRX), 55 km from the middle of the area, began a volume at 13:56 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, 1.9 hours before the alert went out and 244 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 1996-12-01Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1996-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897117136Sfc1 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
1037 m above ground
0-6 km bulk shear
87 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Dec 1, 3:12 AM EST, 5 hours 43 minutes earlier.

Area forecast discussion, Dec 1, 3:12 AM EST, 5 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
310 AM EST SUN DEC 1 1996

PCS BEING USED FOR WARNINGS...BOTH FLW AND FFW...SO WAS WORKING ON
MY AFD ON AFOS ADM. AFD GOT WIPED OUT SO RUNNING A BIT LATE. AGREE
WITH CRW ON LETTING FFA RUN THRU MORNING HRS IN LINE WITH MEM AND
RDU FFAS ISSUED EARLIER. STLT PICS AND 88DS SHOW BACK EDGE OF PCPN
OVER ERN PARTS OF MIDDLE TN ATTM. MDT TO HVY RAINS UNFORTUNATELY
MOVG ACROSS SOAKED AND SOGGY PLATEAU COUNTIES INTO EXTRM SWRN VA
WHERE ADDITIONAL RAINS ARE ALSO UNWELCOMED. BASED ON CUR SITUATION
AND VIEWING GRIDDED DATA...APPRS RAIN WOULD END WITH PASSAGE OF LEAD
FRONT...WHICH SHOULD CLEAR WRN MOST PARTS OF MRX BY 12Z. FROPA AT
REMAINDER OF MRX CWA CLEARLY BY OR BEFORE 18Z. ERN MOST PARTS OF CWA
WILL GET HEAVY RAINS UP TO THAT TIME AS 50-60 KT LOW LVL JET INCRS
PCPTBL WATER VALUES UP TO 1.5 INCHES. DRY SLOT NOTED ON STLT LOOPS
SHOULD MOVE INTO THE AREA THIS EVNG AS SHRTWV TROF LIFTS NE OF THE
REGION...SO CLEARING TNGT LOOKS GOOD. BNDRY LYR RH STAYS HIGH
OVERNIGHT AND WET GROUNDS WOULD AID DVLPMT OF FOG...BUT STRONG WEST
WINDS AND CAA ARE NOT CONDUCIVE TO FOG. BREEZY TO WINDY TDA THEN
DIMINISHING WINDS BY SUNSET.

TEMP WISE...COLDER AIR LAGGING W OF MISS RIVER THIS MRNG SHOULD
OVERTAKE LEAD FRONT AND THUS EXPECT MRNG HIGHS. TEMPS FALLING THRU
THE 40S ON PLATEAU PER FWC MOS LOOKS GOOD. MOS MINS TNGT CLOSE AND
ACCEPTABLE. FWC MAXES PRBLY TOO WARM FOR MON BUT FAN ALSO MIGHT BE
TOO COOL.   #10

TG

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 7:37 PM ESTFlash Flood WarningMRXFentress, Morgan, Scott3 hr
Nov 30, 7:37 PM ESTFlash Flood WarningMRXCampbell, Claiborne3 hr
Nov 30, 11:43 PM ESTFlash Flood WarningMRXClaiborne3 hr
Nov 30, 11:43 PM ESTFlash Flood WarningMRXMorgan, Scott3 hr
Dec 1, 1:54 AM ESTFlash Flood WarningMRXCumberland5 hr
Dec 1, 2:24 AM ESTFlash Flood WarningMRXCampbell5 hr
Dec 1, 2:46 AM ESTFlash Flood WarningMRXCampbell, Fentress, Morgan, Scott6 hr
Dec 1, 2:46 AM ESTFlash Flood WarningMRXCumberland, Roane6 hr
Dec 1, 2:46 AM ESTFlash Flood WarningMRXClaiborne6 hr
Dec 1, 8:55 AM ESTFlash Flood WarningMRXMorgan, Roane3 hr
Nov 30, 7:19 PM ESTFlash Flood WarningMRXWise4 hr
Nov 30, 8:25 PM ESTFlash Flood WarningMRXScott3 hr
Nov 30, 10:03 PM ESTFlash Flood WarningMRXLee3 hr
Nov 30, 11:43 PM ESTFlash Flood WarningMRXWise3 hr
Dec 1, 1:00 AM ESTFlash Flood WarningMRXLee, Scott5 hr
Dec 1, 2:46 AM ESTFlash Flood WarningMRXLee, Scott, Wise6 hr
Dec 1, 8:55 AM ESTFlash Flood WarningMRXWise3 hr

Nearby

Flash Flood Warnings in Tennessee, 1996Every flash flood warning in 1996

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.