No Relief in sight

000
FXUS64 KOHX 042028
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
328 PM CDT SAT AUG 4 2007

.DISCUSSION...
UPPER HIGH CENTERED NEAR THE ARKLATEX REGION TODAY WHILE A WEAK NW
FLOW ALOFT PREVAILS OVER TN. DYNAMICS ARE WEAK BUT THERE IS JUST
ENOUGH INSTABILITY THIS AFTERNOON TO PRODUCE AN ISOL TSTM OR TWO.
ISOL ACTIVITY WILL AGAIN BE POSSIBLE ON SUNDAY AFTERNOON AS THE
PATTERN CHANGES LITTLE.

IT WILL BE QUITE HOT WITH THERMAL RIDGING SETTING UP FROM WESTERN TN
SOUTHEAST INTO AL. OTHER THAN THE 1ST PERIOD...MAV NUMBERS LOOK
GENERALLY OK WITH HIGHS IN THE MID/UPPER 90S. FOR PERIOD #1...THE
MAV CONTINUES TO COME IN TOO COOL. WILL THEREFORE TAKE THE OVER AND
GO WITH MID 70S FOR LOWS FOR BNA.

IN THE EXT FCST...UPPER RIDGING BUILDS EASTWARD AND BECOMES CENTERED
ACROSS TN BY TUES AFTERNOON. THICKNESSES APPEAR TO REACH THEIR
HIGHEST VALUES ON WED AND THU. IT WILL BE AT THAT TIME THAT WE COULD
SEE THE MERCURY APPROACH AND MAYBE EVEN SURPASS 100 DEGREES.

TEMPS ALOFT THROUGH THE EXT WILL BE WARM ENOUGH TO ESTABLISH A
RATHER STRONG CAP AND PREVENT MUCH...IF ANY CONVECTIVE DEVELOPMENT.
WILL THEREFORE KEEP THE EXT DRY.

THE UPPER RIDGE MAY RETREAT BACK TO THE WEST BY NEXT WEEKEND. THIS
MAY EQUATE TO MID 90S TEMPS AS OPPOSED TO UPPER 90S TO 100 DEGREE
TEMPS.