FNUS74 KLIX 211150 FWSLIX SPOT FORECAST FOR GRAND ISLE BARATARIA PASS...NWS NATIONAL WEATHER SERVICE NEW ORLEANS LA 650 AM CDT WED MAR 21 2012 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A BAND OF STRONG THUNDERSTORMS FROM OPELOUSAS TO VERMILION BAY WILL MOVE EAST AND AFFECT THE SPILL SITE DURING THE LATE MORNING TO MIDDAY HOURS. STRONG WINDS...HEAVY RAINFALL...FREQUENT LIGHTNING... AND ISOLATED WATERSPOUTS ARE LIKELY WITH THESE STORMS. A WIND SHIFT TO THE WEST OR NORTHWEST FOR A FEW HOURS IS LIKELY IN THE WAKE OF THE LINE OF STORMS. WINDS WILL RETURN TO THE SOUTH AND SOUTHEAST AGAIN BY LATE TODAY. ONSHORE WINDS WILL PERSIST THROUGH THURSDAY AS THE FRONT STALLS WEST OF THE AREA. ADDITIONAL PERIODS OF SHOWERS AND THUNDERSTORMS ARE LIKELY TONIGHT AND THURSDAY WITH THE EXACT TIMING OF THE ROUNDS OF STORMS UNKNOWN AT THIS TIME. THE RISK OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO END BY THE WEEKEND. STRONG ONSHORE WINDS WILL RESULT IN ELEVATED TIDE LEVELS THROUGH THURSDAY. WATER LEVELS OF 1.5 TO 2.0 FEET THIS MORNING WILL GRADUALLY SUBSIDE TO 1.0 TO 1.2 FEET BY TONIGHT AND THURSDAY. .TODAY... TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........97 97 97 97 97 97 97 97 97 97 97 WEATHER COV.....CHC CHC CHC DEF DEF DEF DEF DEF DEF DEF DEF WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............70 70 71 72 73 75 76 76 77 77 76 RH..............97 97 93 90 84 79 76 76 71 71 71 20 FT WIND DIR..SE SE SE SE NW NW NW NW S S S 20 FT WIND SPD..18 18 18 15 10 10 10 10 10 10 10 20 FT WIND GUST.30 30 30 30 20 20 20 20 20 20 20 MIX HGT (KFT)...2.5 2.5 2.5 2.5 2.5 2.5 4.5 4.5 4.5 4.3 4.3 MIX HGT (KM)....0.8 0.8 0.8 0.8 0.8 0.8 1.4 1.4 1.4 1.3 1.3 TRANSP WIND DIR.SE SE SE SE SE SE S S S S S TRANSP WIND SPD.36 36 36 36 36 36 36 36 36 31 31 TRANS SPD (M/S).16 16 16 16 16 16 16 16 16 14 14 DISPERSION......48 48 48 48 110 110 117 117 117 105 105 CHC OF PCPN (%).30 30 30 80 100 100 100 100 100 80 80 SEAS............2 2 2 2 2 2 2 2 2 2 2 SEA STATE.......VRO VRO VRO VRO RO RO RO RO RO RO RO .TONIGHT... TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........97 100 100 100 96 96 WEATHER COV.....LKLY LKLY LKLY LKLY LKLY LKLY WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............76 75 73 71 68 65 RH..............71 74 79 84 90 93 20 FT WIND......S 10 S 7 S 6 SW 5 SW 5 SW 5 20 FT WIND GUST.20 15 15 10 10 10 MIX HGT (FT)....4300 3500 2300 2300 2100 900 MIX HGT (M).....1310 1070 700 700 640 270 TRANSPORT WIND..S 31 S 26 S 24 S 24 S 23 S 21 TRAN WIND (M/S).S 14 S 12 S 11 S 11 S 10 S 9 DISPERSION......105 89 79 32 31 28 CHC OF PCPN (%).70 70 70 70 70 70 SEAS............1 1 1 1 1 1 SEA STATE.......RO CH CH CH CH CH .THURSDAY... TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........96 95 95 95 99 99 WEATHER COV.....LKLY LKLY LKLY LKLY LKLY LKLY WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............63 64 67 71 74 74 RH..............97 90 84 76 71 74 20 FT WIND......SE 7 SE 4 SE 5 SE 4 SE 4 SE 4 20 FT WIND GUST.15 11 10 8 8 8 MIX HGT (FT)....900 2500 3400 3400 3700 3300 MIX HGT (M).....270 760 1040 1040 1130 1010 TRANSPORT WIND..S 21 S 17 S 14 S 14 S 13 S 16 TRAN WIND (M/S).S 9 S 8 S 6 S 6 S 6 S 7 DISPERSION......28 23 19 47 45 54 CHC OF PCPN (%).70 70 70 70 70 70 SEAS............0 0 0 0 0 0 SEA STATE.......CH CH CH CH CH CH SEA STATE RO = ROUGH VRO = VERY ROUGH CH = CHOPPY TIDES BARATARIA PASS...GRAND ISLE WEDNESDAY LO 6 41 AM STAGE 1.7 HI 11 15 AM STAGE 1.4 LO 6 08 PM STAGE 0.9 THURSDAY HI 2 17 AM STAGE 1.2 LO 4 54 AM STAGE 1.1 HI 10 44 AM STAGE 1.2 LO 7 25 PM STAGE 1.1 .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS. HIGHS IN THE UPPER 70S. SOUTH WINDS 5 TO 10 MPH. .FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS. LOWS IN THE MID 60S. .SATURDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S. $$ FORECASTER...NWS NEW ORLEANS REQUESTED BY...KYLE JELLISON TYPE OF REQUEST...HAZMAT .TAG 20120321.GRAND.01/LIX