RSS FeedsIssued by NWS Shreveport, LA
000 FXUS64 KSHV 211115 AFDSHV AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 515 AM CST SAT NOV 21 2009 .DISCUSSION... EARLY THIS MORNING THE MID AND UPPER LEVEL LOW WAS INDICATED TO BE SPINNING OVER CENTRAL TEXAS THIS MORNING AND WILL SLOWLY MOVE EAST CROSSING THE FOUR STATE REGION LATE THIS AFTERNOON AND APPROACHING THE TENNESSEE VALLEY REGION OF NORTH ALABAMA BY EARLY SUNDAY MORNING. THE LOW WILL THEN RIDE INTO THE BACK OF A RIDGE OF HIGH PRESSURE OVER THE NORTHEAST SECTIONS OF THE COUNTRY AND BECOME AN OPEN WAVE AS IT MOVES ON TO THE NORTHEAST BY EARL MONDAY. A SURFACE LOW OFF THE MIDDLE AND UPPER TEXAS WILL MOVE EAST NORTHEAST ACROSS THE NORTHERN GULF OF MEXICO AHEAD OF THE UPPER SYSTEM AND ACROSS NORTHERN FLORIDA BY EARLY MONDAY. THE FOUR STATE REGION WILL CONTINUE TO SEE LIGHT RAIN OR SHOWERS THROUGH TODAY...THEN A GRADUAL DECREASE IN RAIN FROM WEST TO EAST OVERNIGHT WITH ONLY A VERY SMALL AREA WITH POSSIBLE LIGHT RAIN EARLY SUNDAY. BY AFTERNOON SUNDAY EXPECTING MOST ALL THE RAIN TO BE EXITING OFF TO THE EAST. HIGH PRESSURE WILL BUILD INTO THE FORECAST AREA WHICH WILL HOLD INTO THE EARLY START TO THE WORK WEEK. ANOTHER COLD FRONT WILL MOVE THROUGH LATE MONDAY NIGHT INTO TUESDAY RETURNING RAIN CHANCES...BUT ONCE THIS SYSTEM EXISTS TO THE EAST WE WILL BE EXPECTING COOLER BUT DRIER WEATHER. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL AMPLIFY OVER THE WESTERN STATES WITH A LARGE SURFACE RIDGE OF HIGH PRESSURE BUILDING SOUTH INTO THE FOUR STATE REGION KEEPING A DRY PATTERN INTO THE WEEKEND. SOME OF THE COOLER WEATHER WILL BE AROUND FOR THE START OF THANKSGIVING HOLIDAY INTO FRIDAY. /06/ && .AVIATION... OFF AND ON LIGHT RAIN SHOWERS WILL CONTINUE OVER MUCH OF THE FOUR STATE REGION THIS MORNING. THIS WILL CONTINUE THROUGH AT LEAST THIS AFTERNOON FOR THE MAJORITY OF THE TAF SITES. THIS ACTIVITY SHOULD DECREASE FROM WEST TO EAST THIS EVENING...LEAVING EASTERN SITES BY THE EARLY MORNING HOURS SUNDAY. CIGS OVERALL HAVE REMAINED ABOVE 3 KFT TO GIVE PREVAILING VFR CIGS. VSBYS HAVE GENERALLY REMAINED BETWEEN MVFR AND VFR FLIGHT CATEGORIES. THIS IS EXPECTED TO CONTINUE THROUGH THE REMAINDER OF THE OVERNIGHT HOURS AND INTO THE EARLY AFTERNOON. HOWEVER...CAN NOT RULE OUT PERIODS WHEN THE CIGS DROP TO AROUND 2-3 KFT...ESPECIALLY DURING THE EARLY MORNING HOURS. THIS POSSIBILITY WILL BE COVERED BY TEMPO GROUPS. CLOUD COVER IS EXPECTED TO BEGIN BREAKING UP FROM WEST TO EAST LATE THIS EVENING AND INTO SUNDAY. OTHERWISE EXPECT WINDS TO BE LIGHT GENERALLY OUT OF THE EAST TO NORTHEAST FOR THE MAJORITY OF THE FORECAST PERIOD. /22/ && .PRELIMINARY POINT TEMPS/POPS... SHV 58 45 64 43 70 / 60 30 10 0 10 MLU 56 47 63 43 68 / 60 40 20 0 10 DEQ 61 41 65 42 67 / 40 20 0 0 10 TXK 60 45 64 42 69 / 50 30 0 0 10 ELD 58 45 64 42 69 / 50 40 10 0 10 TYR 60 44 67 45 71 / 50 20 0 0 10 GGG 59 43 65 44 71 / 50 20 0 0 10 LFK 60 44 67 44 72 / 60 20 0 0 10 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && $$ 06/22
