Flash Flood Warning 59, NWS Morristown, TN

Issued

Apr 19, 1998, 9:39 AM EDT (13:39 UTC)

Expired

Apr 19, 1998, 5:40 PM EDT

In force

8 hr

Issued by

NWS Morristown, TN

Area

Whole counties

Counties Blount County, TN, Sevier County, TN

The Knoxville radar (KMRX), 56 km from the middle of the area, began a volume at 13:47 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 191340
FFWMRX
TNC009-155-192140-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
939 AM EDT SUN APR 19 1998

THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BLOUNT COUNTY IN EASTERN TENNESSEE
  SEVIER COUNTY IN EASTERN TENNESSEE

* UNTIL 540 PM EDT

* AT 930 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED THAT A LARGE AREA OF HEAVY RAINFALL WAS LOCATED OVER
  BLOUNT AND SEVIER COUNTIES... MOVING SLOWLY NORTHEAST.

* RAINFALL AT THE RATE OF ONE HALF INCH PER HOUR FOR THE NEXT
  THREE TO FOUR HOURS WILL PRODUCE FLOODING ACROSS BLOUNT AND
  SEVIER COUNTIES THROUGH 545 PM EDT.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

NWS Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Apr 19, 3:30 AM EDT, 6 hours 9 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
330 AM EDT SUN APR 19 1998

SURFACE LOW FORMED OVER EXTREME SOUTHWEST NORTH CAROLINA.  KHTX AND
KMRX 88DS STILL SHOWING MODERATE RAIN OCCURRING OVER MUCH OF THE CWA.
FLOOD WARNINGS CURRENTLY IN EFFECT FOR ALL COUNTIES EXCEPT EXTREME
NORTHEAST TN...CLAY COUNTY IN NORTH CAROLINA...AND RUSSELL AND
WASHINGTON COUNTIES IN SOUTHWEST VA.  MAY HAVE TO INCLUDE THOSE
COUNTIES LATER.  WITH THE SATURATED GROUND...THINK THE FLOOD WATCH
SHOULD BE CONTINUED FOR ENTIRE CWA THROUGH SUNDAY.  PROBABLY CAN TAKE
THE FLASH OUT...JUST A FLOOD WATCH.

MODELS FAIRLY SIMILAR ON TRACK OF SURFACE LOW.  LOW SHOULD REACH
NORTHERN VA BY SUNDAY EVENING THEN CONTINUE UP THE EAST COAST.  RAIN
IS EXPECTED TO END FROM WEST TO EAST THIS MORNING EXCEPT IN THE
NORTHERN VALLEY (TRI)...NORTHERN APPALACHIANS AND SOUTHWEST VA WHERE
RAIN WILL PROBABLY LINGER INTO THE EARLY AFTERNOON.  LOW LEVEL
MOISTURE AT 90+ THROUGH SUNDAY EVENING SO THE SKY SHOULD REMAIN MOSTLY
CLOUDY THROUGH SUNDAY.  DRIER AIR IS PUSHING IN FROM WEST BY SUNDAY
NIGHT...SO CLOUDS SHOULD START SCATTERING BEGINNING OVER THE WESTERN
COUNTIES.  NEXT TROF MOVING IN ON TUESDAY.

FAIRLY GOOD COLD AIR ADVECTION IN THE LOW LEVELS AS THE 850MB LOW
MOVES TO THE NORTHEAST TODAY.  GUIDANCE TEMPERATURES ARENT TOO
DIFFERENT...WOULD LEAN TOWARD THE COOLER FAN FOR SUNDAY.

GH

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.