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     NCEP CENTRAL OPERATIONS (NCO) PLATFORM STATS - GULF OF AK                                
                         APRIL     2018                                                       
                SEA-LEVEL PRESSURE FOR ALL HOURS                                              
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
WAHG       MIDNIGHT SUN              SHP         44           -0.1        1.2           0     
WBB5799    NATOMA                    SHP          5           -0.6        1.2           0     
WBN3008    WESTERN RANGER            SHP          4           -2.5        0.9           0     
WBN5978    GUARDSMAN                 SHP          3            3.7        2.8           0     
WCN3586    SAMSON MARINER            SHP          6           -2.1        1.6           0     
WCT5737    UNKNOWN                   SHP          2           -5.0        0.5           0     
WCY2920    KENNICOTT                 SHP          1            0.7        0.0           0     
WDA4486    ROBERT C. SEAMANS         SHP         64           -1.3        0.9           0     
WDD2703    GULF RELIANCE             SHP          9           -0.9        1.2           0     
WTDF       NOAA HENRY B. BIGELOW (AW SHP          1           -1.8        0.0           0     
WTDH       NOAA OKEANOS EXPLORER (AW SHP        492           -1.7        0.9           0     
WTEC       NOAA RONALD H. BROWN (AWS SHP         61           -0.3        0.6           0     
WTEE       NOAA OSCAR ELTON SETTE  ( SHP        157           -0.4        0.8           0     
WTEP       NOAA OSCAR DYSON (AWS)    SHP        226            0.1        0.9           0     
WYH6327    MALOLO                    SHP         24            1.8        1.4           0     
                                                                                              
                                                                                              
                         APRIL     2018                                                       
                 AIR TEMPERATURE FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
WAHG       MIDNIGHT SUN              SHP         41            0.5        1.5           0     
WBB5799    NATOMA                    SHP          1           -3.0        0.0           0     
WBN3008    WESTERN RANGER            SHP          3            4.7        1.7           0     
WBN5978    GUARDSMAN                 SHP          3           -0.6        0.6           0     
WCN3586    SAMSON MARINER            SHP          6            0.5        1.3           0     
WCT5737    UNKNOWN                   SHP          1            7.4        0.0           0     
WCY2920    KENNICOTT                 SHP          1            1.4        0.0           0     
WDA4486    ROBERT C. SEAMANS         SHP         64            2.2        1.4           0     
WDD2703    GULF RELIANCE             SHP         10            1.4        1.6           0     
WTDF       NOAA HENRY B. BIGELOW (AW SHP          1            2.9        0.0           0     
WTDH       NOAA OKEANOS EXPLORER (AW SHP        492            1.3        1.0           0     
WTEC       NOAA RONALD H. BROWN (AWS SHP         61            1.3        1.1           0     
WTEE       NOAA OSCAR ELTON SETTE  ( SHP        157            2.2        0.5           0     
WTEP       NOAA OSCAR DYSON (AWS)    SHP        226            0.7        1.2           0     
WYH6327    MALOLO                    SHP         25            0.3        1.9           0     
                                                                                              
                                                                                              
                         APRIL     2018                                                       
                  WIND DIRECTION FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
WAHG       MIDNIGHT SUN              SHP         21          -31.1       49.0          23     
WBB5799    NATOMA                    SHP          5          -20.1       23.0           0     
WBN3008    WESTERN RANGER            SHP          4            7.5       13.4           0     
WBN5978    GUARDSMAN                 SHP          3           35.6       18.5           0     
WCN3586    SAMSON MARINER            SHP          6          -17.8       10.1           0     
WCT5737    UNKNOWN                   SHP          0            0.0        0.0           2     
WCY2920    KENNICOTT                 SHP          1          -18.3        0.0           0     
WDA4486    ROBERT C. SEAMANS         SHP         60           -4.8       32.6           6     
WDD2703    GULF RELIANCE             SHP          8          -15.9       11.3           1     
WTDF       NOAA HENRY B. BIGELOW (AW SHP          1           11.3        0.0           0     
WTDH       NOAA OKEANOS EXPLORER (AW SHP        453           -0.8       28.3          39     
WTEC       NOAA RONALD H. BROWN (AWS SHP         58           -2.3       21.9           2     
WTEE       NOAA OSCAR ELTON SETTE  ( SHP        157            0.9        7.7           0     
WTEP       NOAA OSCAR DYSON (AWS)    SHP        225          -19.5       19.3           1     
WYH6327    MALOLO                    SHP         25           20.0       23.9           0     
                                                                                              
                                                                                              
                         APRIL     2018                                                       
                    WIND SPEED FOR ALL HOURS                                                  
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
WAHG       MIDNIGHT SUN              SHP         42            7.1        5.5           2     
WBB5799    NATOMA                    SHP          5            2.4        1.1           0     
WBN3008    WESTERN RANGER            SHP          4            3.7        3.1           0     
WBN5978    GUARDSMAN                 SHP          3            1.1        0.7           0     
WCN3586    SAMSON MARINER            SHP          6            2.6        3.0           0     
WCT5737    UNKNOWN                   SHP          2            1.5        0.3           0     
WCY2920    KENNICOTT                 SHP          1            5.8        0.0           0     
WDA4486    ROBERT C. SEAMANS         SHP         66            0.7        2.2           0     
WDD2703    GULF RELIANCE             SHP         10            1.7        2.3           0     
WTDF       NOAA HENRY B. BIGELOW (AW SHP          1           -4.0        0.0           0     
WTDH       NOAA OKEANOS EXPLORER (AW SHP        492            0.3        1.9           0     
WTEC       NOAA RONALD H. BROWN (AWS SHP         60            1.3        1.9           0     
WTEE       NOAA OSCAR ELTON SETTE  ( SHP        157            1.0        1.1           0     
WTEP       NOAA OSCAR DYSON (AWS)    SHP        226            0.9        2.1           0     
WYH6327    MALOLO                    SHP         25            6.1        4.6           0     
                                                                                              
                                                                                              
                         APRIL     2018                                                       
                SEA SURFACE TEMP. FOR ALL HOURS                                               
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
WAHG       MIDNIGHT SUN              SHP         34            2.2        0.6           0     
WBB5799    NATOMA                    SHP          5            0.1        0.7           0     
WBN3008    WESTERN RANGER            SHP          3            0.8        0.5           0     
WCT5737    UNKNOWN                   SHP          1           -2.5        0.0           0     
WDA4486    ROBERT C. SEAMANS         SHP         53            0.5        0.8           0     
WDD2703    GULF RELIANCE             SHP          3           -0.9        3.0           0     
WTDF       NOAA HENRY B. BIGELOW (AW SHP          1           -1.8        0.0           0     
WTDH       NOAA OKEANOS EXPLORER (AW SHP        464            0.0        0.9           0     
WTEC       NOAA RONALD H. BROWN (AWS SHP         60            0.4        1.3           0     
WTEE       NOAA OSCAR ELTON SETTE  ( SHP        157            1.3        2.3           0     
WTEP       NOAA OSCAR DYSON (AWS)    SHP        226            0.7        0.8           0     
WYH6327    MALOLO                    SHP         25            1.4        2.9           0     
                                                                                              
TOTAL NUMBER OF GULF OF ALASKA OBSERVATIONS FOR APRIL     2018                                
(EXCLUDING DUPLICATES) WAS   1103.  TOTAL NUMBER OF IDS WAS  15.