Flash Flood Warning 9, NWS Morristown, TN

Issued

Jan 7, 1998, 9:18 PM EST (02:18 UTC)

Expired

Jan 8, 1998, 3:15 AM EST

In force

6 hr

Issued by

NWS Morristown, TN

Area

Whole counties

Counties Carter County, TN, Johnson County, TN, Unicoi County, TN

The Knoxville radar (KMRX), 114 km from the middle of the area, began a volume at 02:21 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.

000 
TTAA00 KMRX 080219
FFWMRX
TNC019-091-171-VAC191-080815-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KNOXVILLE TRI CITIES TN
918 PM EST WED JAN 7 1998
 
THE NATIONAL WEATHER SERVICE IN KNOXVILLE TRI CITIES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  315 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST TENNESSEE
 
   ...CARTER COUNTY...JOHNSON COUNTY...UNICOI COUNTY
 
 
IN SOUTHWEST VIRGINIA
 
   ...WASHINGTON COUNTY
 
HEAVY RAIN FROM A SLOW MOVING SYSTEM HAS BEGUN TO FALL IN EXTREME
NORTHEAST TENNESSEE AND SOUTHWEST VIRGINIA. A LINE OF HEAVY RAIN
EXTENDS SOUTH WELL INTO GEORGIA AND WILL MOVE NORTH OVER UNICOI...
CARTER...AND JOHNSON COUNTIES IN TENNESSEE...AND WASHINGTON COUNTY,
VIRGINIA.  THE RAIN WILL CONTINUE FOR SEVERAL HOURS AND FLOODING IS
LIKELY IN CREEKS AND STREAMS.  ROADS WILL LIKELY BE CLOSED OR WASHED
OUT.
 
FURTHER INFORMATION WILL BE ISSUED AS IT BECOMES AVAILABLE.
 
BE ESPECIALLY CA:UTIOUS 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 ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

NWS Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Jan 7, 3:00 PM EST, 6 hours 18 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
3 PM EST WED JAN 7 1998

ETA TOO FAST W/SYSTEM OVER THE SE. PREFER SLOWER NGM/AVN.

BLANKET FFA FOR ALL OF E TN AND CHEROKEE AND CLAY COUNTIES TONIGHT
LOOKS GOOD GIVEN THAT SYSTEM IS MOVG XTRMLY SLOW. CRW..WOULD INCLD SW
VA AS WELL.  SRLY FLOW FM SFC ON UP..DEEP MOISTURE..LIFT..AND GOOD
LOW-LVL THETA-E RIDGE OVER CWA COMBINE TO GERNERATE WIDESPREAD MOD TO
HVY RAINFALL DURING THE OVRNGT HRS.  EVEN THOUGH HEAVIEST RAINFALL WL
BE ON THE E SLOPES OF THE MTS IN FAVORED UPSLOPE AREAS..PREV MENTIONED
FACTORS WL OVERCOME MUCH OF THE RAIN SHADOW EFFECT.  RAIN CHCS SLOWLY
DIMINISH FM SW TO NE THURS AS DEEP MOISTURE AND BEST LIFT GRAD SHIFT N
& E.  WOULD GO FOR LIKELY POPS FOR NE TN/SW VA..GOOD CHC VALLEY &
PLATEAU..CHC POPS SE TN/SW NC. CHC POPS STILL NEEDED THURS NGT.  UPPER
TROF/VORT AXIS PIVOT ACRS CWA & FCST SNDGS SHOW STEEP LAPSE RATE. FRI
WL BE A DRY DAY AS A ZONAL hFLOW BEGINS TO DVLP. LOW LVL WRAPAROUND
MOISTURE REMAINS HI SO CLDY SKIES WL CONTINUE.

FWC/FAN BLEND ON TEMPS PREFERRED.

THANKS FOR COORD CALL MEM.

HSA

Flash Flood Warnings in Tennessee, 1998Every flash flood warning in 1998

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.