FNUS74 KLIX 282011 FWSLIX SPOT FORECAST FOR DEEPWATER HORIZON...NWS NATIONAL WEATHER SERVICE NEW ORLEANS LA 311 PM CDT WED APR 28 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SOUNDING... RUC13 21Z MODEL SOUNDING SHOWS SE 5-10KT SFC-2600FT...NW 10-35KT TO 9300FT...W 30-40KT TO 26KFT...50-115KT ABOVE 26KFT. DRY ADIABAT TO 3450FT...INVERSION BASE TEMP 11C...NOSE TEMP 12C AT 6700FT. SURFACE... BROAD 1018MB HIGH PRESSURE AREA SETTLED OVER SPOT LOCATION AND EXTENDING NORTH. WINDS GENERALLY VARIABLE 5 KT OR LESS UNDER RIDGE. GULF BREEZE CONVERGENT WIND NOTED FROM LUMCON WESTWARD THROUGH TX COAST. BUOY 42040 HAD A SIGNIFICANT DROP IN RH DOWN TO 36 PERCENT THIS HOUR AND PART OF DRY AIR DRAINAGE COMING OUT OF MOBILE BAY ALONG WITH STRONG SUBSIDENCE. AVIATION... VFR CAVOK WITH DEBRIS CIRRUS BASED AOA BKN180. LIGHT TURBULENCE AND MINOR RIME ICING POSSIBLE AOA FL180 ADVANCING FROM WSW 40 KT IN RESPONSE TO UPPER DISTURBANCE ABOVE 500 MB. RADAR... LOW REFLECTIVITY RETURNS BELOW 20DBZ LIKELY SNOW VIRGA AOA 19KFT ADVANCING ENE 37 KT AND CENTERED ABOUT 135 NM SW OF SPOT LOCATION. NO LIGHTNING DETECTED OVER GLFMEX. .REST OF TODAY... TIME (CDT) 3PM 4PM 5PM SKY (%).........7 7 7 WEATHER COV..... WEATHER TYPE.... TEMP............68 68 71 RH..............52 52 52 20 FT WIND DIR..NE E SE 20 FT WIND SPD..2 3 4 20 FT WIND GUST.5 5 5 MIX HGT (KFT)...3.7 3.6 3.6 MIX HGT (KM)....1.1 1.1 1.1 TRANSP WIND DIR.SE SE SE TRANSP WIND SPD.6 6 6 TRANS SPD (M/S).3 3 3 CHC OF PCPN (%).0 0 0 SEAS............2 2 2 SEA STATE.......SMOOTH ALL SWELL .TONIGHT... TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........7 8 8 8 7 8 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............71 67 64 64 64 64 RH..............49 59 67 70 73 75 20 FT WIND......SE 4 SE 6 SE 6 SE 7 SE 7 SE 8 20 FT WIND GUST.5 10 10 15 15 15 MIX HGT (FT)....3600 2200 1900 1900 1600 1700 MIX HGT (M).....1100 670 580 580 490 520 TRANSPORT WIND..SE 6 SE 5 SE 9 SE 9 SE 10 SE 10 TRAN WIND (M/S).SE 6 SE 5 SE 9 SE 9 SE 10 SE 10 CHC OF PCPN (%).0 0 0 0 0 0 SEAS............2 2 2 2 3 3 SEA STATE.......SMOOTH ALL SWELL .THURSDAY... TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........8 6 0 0 0 3 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............64 66 70 74 75 75 RH..............75 75 71 66 66 69 20 FT WIND......SE 10 SE 11 SE 12 SE 13 SE 13 SE 14 20 FT WIND GUST.20 25 25 25 25 25 MIX HGT (FT)....1700 2000 2000 2000 2000 2000 MIX HGT (M).....520 610 610 610 610 610 TRANSPORT WIND..SE 10 SE 15 SE 21 SE 21 SE 23 SE 22 TRAN WIND (M/S).SE 10 SE 15 SE 21 SE 21 SE 23 SE 22 CHC OF PCPN (%).0 0 0 0 0 0 SEAS............3 4 4 4 4 4 SEA STATE.......LIGHT CHOP BECOMING CHOPPY $$ FORECASTER...NWS NEW ORLEANS/24 REQUESTED BY...TIM ERICKSON TYPE OF REQUEST...HAZMAT .TAG 20100428.DEEPW.08/LIX