FNUS74 KLIX 160913 FWSLIX SPOT FORECAST FOR PORT FOURCHON...NWS NATIONAL WEATHER SERVICE NEW ORLEANS LA 413 AM CDT SUN MAY 16 2010 .SYNOPSIS... A WEAK TROUGH OF LOW PRESSURE ALONG THE LA COAST IS LIKELY TO BECOME ACTIVATED WITH TSTMS THIS MORNING AS AN UPPER LEVEL DISTURBANCE MOVES E FROM SW LA THIS MORNING INTO THE AFTERNOON. A 6MB GRADIENT WAS ACROSS THE GLFMEX WITH 1021MB ALONG THE W FL COAST...1015MB ON THE TX COAST. PRESSURE AT PORT FOURCHON IS 1017MB. .WATCH/WARNING/ADVISORY SUMMARY... ...SPC DAY1 OUTLOOK...GENERAL NON-SVR TSTMS EXPECTED TODAY. ...SPC DAY2 OUTLOOK...GENERAL NON-SVR TSTMS EXPECTED MONDAY. ...THUNDERSTORMS ARE EXPECTED TO DEVELOP AND BECOME QUITE NUMEROUS AND STRONG THIS MORNING... A STRONG UPPER LEVEL DISTURBANCE IS EXPECTED TO MOVE EAST ALONG THE LOUISIANA GULF COAST AND ACTIVATE THUNDERSTORMS ALONG A STALLED SURFACE BOUNDARY SITUATED OVER THE COASTAL PARISHES. A LARGE CLUSTER OF THUNDERSTORMS WAS INCREASING IN COVERAGE ALONG THE SOUTHWEST LOUISIANA COAST NEAR CAMERON AND EXPANDING EASTWARD THROUGH VERMILION BAY. THIS TREND IS LIKELY TO CONTINUE OVERNIGHT INTO EARLY SUNDAY MORNING INTO THE SOUTHEAST LOUISIANA COASTAL WATERS AND ADJACENT MARSHES. THE AIR MASS REMAINS QUITE UNSETTLED DESPITE WIDESPREAD RAINFALL SATURDAY. DEEP MOISTURE WILL CONTINUE TO FEED INTO THE BOUNDARY TO MAKE RAINFALL HEAVY AT TIMES. LIGHTNING MAY BECOME FREQUENT AND WIND GUSTS AROUND 35 KNOTS WILL BE POSSIBLE ALONG WITH LOCALLY ROUGH SEAS DURING STRONGER STORMS. WATERSPOUTS WILL ALSO BE POSSIBLE UNDER RAPIDLY DEVELOPING STORMS. MARINERS OPERATING IN THE COASTAL WATERS SHOULD BE MINDFUL OF INCLEMENT WEATHER MOVING INTO OR DEVELOPING RAPIDLY OVER THE AREA TODAY. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE MARINE WEATHER WARNINGS TODAY. .NEARBY GULF ASOS/AWOS OBSERVATIONS... ...K9F2 - FOURCHON LA ...KBVE - BOOTHVILLE-VENICE LA ASOS ...KGAO - GALLIANO LA AWOS ...KHUM - HOUMA LA AWOS ...KMDJ - MS CANYON 28.7N 89.8W ...KDLP - WEST DELTA 29.1N 89.6W SPECI K9F2 MISG METAR KBVE 160851Z AUTO 00000KT 8SM CLR 23/22 A3002 RMK AO2 SLP163 T02330222 56006 TSNO METAR KGAO 160842Z AUTO 13004KT 7SM BKN001 BKN036 BKN041 25/23 A3000 METAR KHUM 160840Z AUTO 5SM BR BKN015 22/22 A2999 RMK AO2 LTG DSNT NW METAR KMDJ MISG METAR KDLP 160830Z AUTO 11006KT 8SM SCT055 25/23 A3000 RMK A01 .RADAR... A BAND OF LIGHT RAINSHOWERS EXTENDED FROM COCODRIE TO 80NM SOUTH OF PORT FOURCHON...MOVING NNE 15 KT. MEANWHILE A LARGE CLUSTER OF THUNDERSTORMS WAS MOVING EAST 17 KT ALONG THE CENTRAL LA COAST NEAR MARSH ISLAND INTO LAFAYETTE AND OPELOUSAS. FREQUENT LIGHTNING WAS NOTED WITH THESE STORMS. GIVEN CURRENT SPEED AND TRENDS...THESE STORMS SHOULD BE CLOSE TO PORT FOURCHON AND THE SURROUNDING IMPACT AREAS BETWEEN 8 AND 9 AM. .TIDAL INFORMATION... PSTL1 1.17 FT; RISING...PROJECTED HIGH TIDE 2.28 FT AT 958 AM CDT GISL1 0.80 FT; RISING...PROJECTED HIGH TIDE 1.80 FT AT NOON CDT .TODAY... TIME (CDT) 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........M 71 85 85 85 85 85 85 85 79 79 79 79 79 WEATHER COV.....M CHC LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY LKY WEATHER TYPE....M TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............M 75 75 76 77 78 78 79 79 79 80 80 80 79 RH..............M 91 91 91 88 85 80 80 78 77 77 75 78 78 20 FT WIND DIR..M SE SE SE SE SE SE S S S S S S S 20 FT WIND SPD..M 10 10 10 9 8 7 8 9 10 10 10 9 8 20 FT WIND GUST.M 20 20 20 20 15 15 15 20 20 20 20 20 15 CHC OF PCPN (%).M 30 70 70 70 70 70 70 70 70 70 70 70 70 SEAS............M 3 3 3 3 3 3 3 3 2 2 2 2 2 SEA STATE.......LIGHT CHOP XCPT ROUGH NR TSTMS......................... .TONIGHT... TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........79 73 68 68 63 66 WEATHER COV.....LIKELY CHANCE CHANCE CHANCE S CHC S CHC WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............79 78 77 76 75 74 RH..............78 80 85 88 92 95 20 FT WIND......S 6 SW 6 SW 6 SW 7 SW 6 W 6 20 FT WIND GUST.10 10 10 15 10 10 CHC OF PCPN (%).70 30 30 30 20 20 SEAS............2 2 2 2 3 3 SEA STATE.......LT CHOP................................. .MONDAY... TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........66 70 70 70 52 52 WEATHER COV.....S CHC CHANCE CHANCE CHANCE CHANCE CHANCE WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............73 76 80 82 84 86 RH..............93 85 73 68 64 60 20 FT WIND......W 6 NW 6 NW 5 NW 4 W 3 SW 5 20 FT WIND GUST.10 10 10 5 5 10 CHC OF PCPN (%).20 30 30 30 30 30 SEAS............3 3 3 3 3 3 SEA STATE.......SMOOTH................................ $$ FORECASTER...NWS NEW ORLEANS/24 REQUESTED BY...MIKE EFFERSON TYPE OF REQUEST...HAZMAT .TAG 20100516.PORTF.01/LIX