Severe Thunderstorm Warning 296, NWS Nashville, TN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1017 AM CDT THU AUG 10 2000

ANOTHER HOT AND HUMID SUMMER DAY TODAY. ONLY SLIGHTLY BETTER THAN
YESTERDAYS SCORCHER.

CURRENTLY...TEMPS ARE RUNNING A DEGREE OR TWO COOLER THAN
YESTERDAY...DEW POINTS ARE AGAIN IN THE 70S MAKING IT UNCOMFORTABLE.
FRONTAL POSITION DRAPED FROM NE ARK TO PAH TO SOUTHERN OHIO. WIND
SHIFT/TROUGH SITTING FROM DYR...SOUTHWARD ALONG THE MISSISSIPPI
RIVER. WARM FRONT STRETCHING THROUGH MS INTO SW MO.

THE MAIN CONCERN TODAY WILL BE THUNDERSTORMS. VERY JUICY AIR WITH
NEAR 2 INCH PRECIPITABLE WATER...AND STABILITY INDICES ALL POINTING
TOWARD CONVECTION. 12Z AM BNA SOUNDING DISPLAYING -7 LI...OUT OF THIS
WORLD 45 K-INDEX. SWEAT INDEX OF 391 AND TOTAL TOTALS OF 54.
CONVECTIVE TEMPERATURE OF 93 DEGREES TODAY.

FRONT WILL DROP SOUTHWARD THROUGH MIDDLE TENNESSEE DURING THE
AFTERNOON HOURS. PASSAGE THRU BNA BETWEEN 1-3 PM TODAY. BEHIND
WHICH...WINDS SHIFT TO NORTH AT THE SFC. WILL NOT BE TOO MUCH OF A
MOISTURE DROP AT THE SFC...MOST OF THE DRYING WILL BE SEEN ALOFT.

WITH INSTABILITY AND DEEP MOISTURE...SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA. MOST OF THESE SHOULD BE WITH THE FRONT AS
IT SLIPS SOUTHWARD. SEVERE WEATHER THREATS LOOK SMALL DUE TO A WEAK
WIND REGIME...HOWEVER...SOME STORMS WILL LIKELY HAVE STRONG TO SEVERE
DOWNDRAFT WINDS ASSOCIATED WITH THEM.

WILL LOWER MAX TEMPS A TAD...ESPECIALLY IN THE PLATEAU WHERE CLOUDS
HAVE HUNG AROOUND THIS MORNING.

DICKSON 15

TNZ005>011-022>034-056>066-075>080-093>097-111030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
530 AM CDT THU AUG 10 2000

...SCATTERED THUNDERSTORMS ARE EXPECTED TODAY AND THIS EVENING WITH
HEAT INDICES DURING THE AFTERNOON CLIMBING AS HIGH AS 105 DEGREES...

SCATTERED THUNDERSTORMS CAN BE EXPECTED TODAY AND DURING THE EVENING.
THE POTENTIAL FOR SOME OF THESE STORMS IN REACHING SEVERE THRESHOLDS
IS QUITE HIGH...WITH THE PRIMARY THREAT RESULTING FROM DAMAGING
STRAIT LINE WINDS...ALTHOUGH SMALL HAIL IS ALSO POSSIBLE. THESE
STORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL...WHICH COULD
PRESENT ADDITIONAL HAZARDS...ESPECIALLY IN URBAN AREAS.

A VERY WARM AND HUMID AIR MASS WILL REMAIN IN PLACE AGAIN TODAY...
WITH TEMPERATURES CLIMBING WELL INTO THE 90S ACROSS MUCH OF THE MID
STATE. AS A RESULT...HEAT INDICES WILL RISE TO AS HIGH AS 105 DEGREES
DURING THE AFTERNOON...MAINLY IN AREAS WEST OF THE CUMBERLAND
PLATEAU.

ACTIVATION OF EMERGENCY MANAGERS AND SPOTTER GROUPS IS POSSIBLE TODAY
AND THIS EVENING.

08