Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS64 KMRX 030744 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 344 AM EDT WED JUN 3 2015 .SHORT TERM (TODAY AND TONIGHT)...AN UPPER LOW WILL REMAIN ACROSS THE SOUTHERN APPALACHIANS TODAY WITH THE COLD AIR ALOFT KEEPING THE AIR-MASS UNSTABLE. MODELS ALSO SHOW AN INVERTED SURFACE TROUGH OVER THE NORTHERN AND CENTRAL VALLEY. WILL KEEP HIGHEST CHANCES OF CONVECTION OVER THE NORTHEAST HALF OF THE AREA AND MOUNTAINS. MODEL SOUNDINGS ARE NOT AS UNSTABLE AS TUESDAY...HOWEVER...CAPES OF 1000- 1500 J/KG...200-300 J/KG HAIL CAPES...AND LOW WBZ TO PRODUCE ANOTHER LATE AFTERNOON/EARLY EVENING OF A CHANCE OF HAIL. WILL INCLUDE WITHIN THE HWO. BESIDES THE STORMS...AREAS OF LOW-CLOUDS AND FOG EXPECTED THROUGH MID-MORNING. SOME OF THE FOG IS DENSE. FOR TONIGHT...CONVECTION WILL END BY AROUND SUNSET WITH PATCHY FOG RE-DEVELOPING. .LONG TERM...(WEDNESDAY THROUGH TUESDAY)...UPPER LEVEL LOW FINALLY MOVES EAST OF THE APPALACHIANS THURSDAY AND THEN TO NEAR THE EAST COAST FRIDAY. HOWEVER THE CIRCULATION WILL STILL BRING WRAP AROUND CLOUDS INTO THE NORTHEAST PART AND THE EASTERN TN MOUNTAINS THURSDAY. RAIN CHANCES STILL LIKELY EASTERN MOUNTAINS BUT CHANCE ELSEWHERE WITH MORE SUNSHINE. HIGHS EXPECTED TO BE A FEW DEGREES WARMER TOO. RAIN CHANCES DROP OFF RAPIDLY THURSDAY EVENING. FRIDAY AS LOW MOVES EVEN FARTHER EAST RIDGING ALOFT TAKES HOLD BUT SHORTWAVE ENERGY STILL ENOUGH WITH RESIDUAL MOISTURE FOR A SLIGHT CHANCE OF AFTERNOON AND EVENING STORMS...SLIGHTLY HIGHER CHANCES NE AND EASTERN MOUNTAINS. FROM SATURDAY THROUGH TUESDAY MODELS SHOW ANOTHER FRONT TO APPROACH AND PASS THROUGH ABOUT SATURDAY AND THEN AGAIN MONDAY INTO MONDAY NIGHT. THESE 2 SYSTEMS WILL INCREASE POPS SLIGHTLY THOSE DAYS BUT BASIC PATTERN WILL HAVE CHANCE POPS IN THE AFTERNOON AND EARLY EVENING. TEMPERATURES WILL BE WARMER AND NEAR NORMAL IN THE LOWER TO MID 80S DAYS AND LOWER TO MID 60S AT NIGHT. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 82 63 85 65 / 30 20 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 80 62 82 64 / 40 20 30 10 OAK RIDGE, TN 81 62 83 63 / 40 20 30 10 TRI CITIES AIRPORT, TN 77 59 80 60 / 50 30 50 20 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.