THIS FORECAST WAS AUTOMATICALLY GENERATED FROM NOAA/NWS/OPC FORECAST GRIDS AND SOME MODEL DATA. NO FORECASTER HAS PROOF READ THIS FORECAST. PLEASE USE AS GUIDANCE ONLY. FOR FORECAST COLLABORATION AND QUESTIONS, PLEASE CONTACT OPC'S ATLANTIC REGIONAL FORECASTER AT 301-683-1520 OR NCEP.LIST.OPC-IDSS@NOAA.GOV. FOR TECHNICAL OR FORMATTER QUESTIONS, PLEASE CONTACT OPC'S APPLICATIONS BRANCH AT NCEP.OPC.SUPPORT@NOAA.GOV. FORMATTER VERSION: V1.2.1 - MAY 3, 2019: ADDED EXTENDED 7 DAY FORECAST. ********************************************************************* 1. NATIONAL WEATHER SERVICE HAZARDS AT 181200Z NOV 25: A. 40.100250N 69.917300W: NONE 2. METEOROLOGICAL SITUATION AT 181200Z NOV 25: A SERIES OF SURFACE TROUGHS WILL CONTINUE TO MOVE NW TO SE OVER THE AREA TODAY AND TONIGHT AROUND BROAD LOW PRESSURE OVER ATLANTIC CANADA. HIGH PRESSURE WILL BUILD OVER THE WATERS WED, THEN SHIFT N AND W WED NIGHT THROUGH THU NIGHT AS LOW PRESSURE PASSES BY JUST S AND SE OF THE AREA. THE HIGH PRESSURE RIDGE WILL THEN SHIFT E FRI, AGAIN PASSING ACROSS THE WATERS. A COLD FRONT WILL MOVE SE ACROSS THE WATERS FRI NIGHT INTO EARLY SAT. HIGH PRESSURE WILL BUILD OVER THE AREA AGAIN LATE SAT AND SAT NIGHT. 3. 40.100250N 69.917300W 24 HOUR FORECAST COMMENCING 181200Z NOV 25 A. NATIONAL WEATHER SERVICE HAZARDS: NONE B. SKY, WEATHER: 18/12Z: MM, 18/18Z:. C. VSBY (NM): 18/12Z: GREATER THAN 7NM. D. SURFACE WIND (KTS): 18/12Z: W 25G30, 18/18Z: W 20G25, 19/00Z: W 15G20, 19/06Z: W 10 TO 15. E. COMBINED SEAS (FT): 18/12Z: W 8 TO 9, 18/18Z: W 7, 19/00Z: W 5 TO 6, 19/06Z: W 4 TO 5. F. MAX/MIN TEMPS (F): 18/12Z: 50/46. G. SST ANALYSIS (F): 16/00Z: NO DATA AVAILABLE. H. THRESHOLD BASED OPERATING CONDITIONS: (1) SEAS (FT): OPERATIONS: FAVORABLE: NO MORE THAN 4 FT UNFAVORABLE: GREATER THAN 4 FT ROV: FAVORABLE: NO MORE THAN 7 FT UNFAVORABLE: GREATER THAN 7 FT 18/12Z: UNFAVORABLE CONDITIONS FOR OPERATIONS, ROV, 19/00Z: FAVORABLE CONDITIONS FOR ROV, UNFAVORABLE CONDITIONS FOR OPERATIONS. I. OUTLOOK TO 48 HOURS: (1) WINDS (KTS): 19/12Z: W 5 TO 10, 19/18Z: NE 5G10, 20/00Z: NE 10 TO 15, 20/06Z: NE 15G20. (2) COMBINED SEAS (FT): 19/12Z: W 3, 19/18Z: SW 2 TO 3, 20/00Z: SW 2, 20/06Z: E 2. J. EXTENDED FORECAST TO 7 DAYS: (1) WINDS (KTS): 20/12Z: N 10 TO 15G20, 21/12Z: SW 10 TO 15G20, 22/12Z: N 10 TO 15, 23/12Z: NW 5 TO 10G15, 24/12Z: W 10 TO 15. (2) COMBINED SEAS (FT): 20/12Z: S 3, 21/12Z: S 3 TO 5, 22/12Z: NW 5, 23/12Z: S 4 TO 5, 24/12Z: W 5 TO 6. K. OTHER COMMENTS: (1) VISIBILITY UNRESTRICTED OUTSIDE OF PRECIPITATION. (2) FOR BEST POSSIBLE WEATHER FORECASTS AND SURVEILLANCE, PLEASE SEND WEATHER OBSERVATIONS EVERY SIX HOURS AND PROVIDE TIMELY, ACCURATE MOVREPS. 4. FORECASTER: OCEAN FORECAST BRANCH - OCEAN PREDICTION CENTER/