FNUS74 KLIX 161107 FWSLIX SPOT FORECAST FOR PORT FOURCHON...NWS NATIONAL WEATHER SERVICE NEW ORLEANS LA 607 AM CDT SUN MAY 16 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .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 1019MB ALONG THE W FL COAST...1013MB ON THE TX COAST. PRESSURE AT PORT FOURCHON IS 1016MB. .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 161025Z 15006KT 7SM FEW008 OVC040 25/24 A2999 METAR KBVE 161051Z AUTO 15003KT 8SM CLR 23/22 A3001 RMK AO2 SLP162 T02330222 TSNO $ METAR KGAO 161042Z AUTO 13006KT 7SM OVC001 25/24 A2999 RMK AO2 LTG DSNT W METAR KHUM 161040Z AUTO 7SM SCT011 BKN022 OVC090 25/25 A2997 RMK AO2 LTG DSNT W THRU N METAR KMDJ MISG METAR KDLP 161030Z AUTO VRB06KT 10SM SCT036 BKN045 26/23 A3000 RMK A01 .RADAR... A LARGE CLUSTER OF THUNDERSTORMS WAS MOVING EAST AT 16 KT ACROSS SOUTH CENTRAL LA AND INTO SOUTHEASTERN LA. AT 6AM CDT THIS WAS JUST OVER BATON ROUGE AND STRETCHING SOUTHWEST OVER MORGAN CITY AND INTO THE GULF. FREQUENT LIGHTNING...MODERATE TO HEAVY RAIN...AND WIND GUSTS OF UP TO 20 KTS ARE ASSOCIATED WITH THIS LINE. GIVEN CURRENT SPEED AND TRENDS...THIS MAIN BAND OF ACTIVITY SHOULD BEGIN TO AFFECT THE PORT FOURCHON AREA AROUND 9AM ALTHOUGH LIGHT SHOWERS AND EVEN AN EMBEDDED THUNDERSTORM WILL BE POSSIBLE WELL AHEAD OF THIS LINE. MEANWHILE LIGHT RAINSHOWERS AND A FEW THUNDERSTORMS ARE SCATTERED ACROSS SOUTHEASTERN LA AND THE COASTAL WATERS. .TIDAL INFORMATION... PSTL1 1.65 FT AND RISING...HIGH TIDE IS 2.28 AT 10AM CDT. GISL1 1.19 FT AND RISING...HIGH TIDE IS 1.87 AT 11AM CDT. .TODAY... TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........85 85 85 85 85 85 85 79 79 79 79 79 WEATHER COV.....CHC CHC LKY LKY LKY LKY LKY CHC CHC CHC CHC CHC WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............75 76 77 78 78 79 79 79 80 80 80 79 RH..............91 91 88 85 80 80 78 77 77 75 78 78 20 FT WIND DIR..SE SE SE SE SE S S S S S S S 20 FT WIND SPD..10 10 9 8 7 8 9 10 10 10 9 8 20 FT WIND GUST.20 20 20 15 15 15 20 20 20 20 20 15 CHC OF PCPN (%).35 50 70 70 70 70 70 50 50 50 50 50 SEAS............3 3 3 3 3 3 3 2 2 2 2 2 SEA STATE.......CHOPPY BUT ROUGH NEAR TSM....................... HRLY RAIN (IN). .53 .53 .53 .53 .53 .53 .53 .53 .53 .53 .53 .53 .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.................................. HRLY RAIN (IN)..0.05 0.05 0.05 0.05 0.05 0.05 .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.......LT CHOP.................................. HRLY RAIN (IN)..0.07 0.07 0.07 0.07 0.07 0.07 $$ FORECASTER...NWS NEW ORLEANS REQUESTED BY...MIKE EFFERSON TYPE OF REQUEST...HAZMAT .TAG 20100516.PORTF.03/LIX