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OCTOBER 1999 WEATHER REVIEW

October is histOrically the start of our rainy season, and this year was no exception. A minor trough on the 6th brought light rain, which was then followed by a prolonged period of our "Indian Summer", with temps generally in the 70's and 80's until the 21st. Temps after that cooled rapidly as an unusually strong GOA circulation began ushering in cooler ocean air. On the 27th, a major low pummeled the Pac NW, and pelted the Cent. Calif Coast with 1-2" rains, winds to 40mph locally, and up to 60mph along the NW coast. What was unusual was the wave heights, which topped 30' in Pacifica, and an estimated 55'-60' surf at Mavericks, on Pilar Point, 11 miles south of Pacifica. 60' ocean sea/swells claimed 6 lives off the Oregon Coast and 2 people were washed out to sea in the Santa Cruz area. Locally, the Pacifica pier was closed for 2 days, where some local beachfront flooding occurred. No major damage, fortunately. After the wild storm, another period of tranquility, as temps again climbed, and by Halloween were back in the 70's...a most unusual condition.

                   MONTHLY CLIMATOLOGICAL SUMMARY for OCT. 1999
NAME: HOME CITY: Pacifica  STATE: Ca  ELEV: 540'  LAT: 37.36'N  LONG: 122.27'W 
                   TEMPERATURE (°F), RAIN  (in), WIND SPEED (mph)



                                      HEAT  COOL        AVG
    MEAN                              DEG   DEG         WIND                 DOM
DAY TEMP  HIGH   TIME   LOW    TIME   DAYS  DAYS  RAIN  SPEED HIGH   TIME    DIR
------------------------------------------------------------------------------------
 1  58.3  70.9   2:00p  47.4   7:00a   5.8   0.0  0.00   1.3   8.0  12:00p     W
 2  58.1  67.6   2:00p  50.4   2:30a   6.0   0.0  0.00   2.6  16.0  11:30a     S
 3  59.4  69.0   2:00p  54.8   7:30a   3.1   0.0  0.00   3.4  13.0   4:30p     S
 4  60.5  67.1   2:00p  56.1   6:00a   3.4   0.0  0.00   3.3  15.0   3:30p   SSW
 5  61.9  69.7  12:00p  56.3   2:00a   2.0   0.0  0.00   2.8  17.0   7:00p     S
 6  59.0  61.2  12:30a  55.6  12:00m   6.6   0.0  0.05   2.6  15.0   2:00p   SSW
 7  60.6  71.2   2:30p  53.2   6:00a   2.8   0.0  0.01   1.7  11.0  11:30a   SSW
 8  67.2  83.0   1:30p  54.2   1:00a   0.0   3.6  0.00   2.0  16.0   1:30p    SW
 9  63.5  75.7   1:30p  54.2   7:00a   0.1   0.0  0.00   1.4   9.0   1:30p    SW
10  66.6  83.4   3:00p  57.3   2:00a   0.0   5.3  0.00   1.7  16.0   9:30a   SSE
11  62.0  74.4   1:30p  53.8  12:00m   0.9   0.0  0.00   2.1  15.0  10:00a     W
12  60.1  77.6   1:00p  51.3   6:00a   0.6   0.0  0.00   1.7  16.0  11:30a   SSW
13  57.0  66.3   1:30p  49.7   7:00a   7.0   0.0  0.01   1.2   7.0  10:00a   SSW
14  61.2  70.9   2:30p  54.4  12:00m   2.3   0.0  0.01   2.0  13.0   5:00a     W
15  60.0  70.9   2:30p  51.7   5:30a   3.7   0.0  0.01   1.7  10.0  11:30a   SSW
16  70.8  79.8   4:00p  59.5  12:30a   0.0   4.7  0.00   4.3  22.0   1:00p   NNE
17  68.2  78.5   1:00p  53.5  12:00m   0.0   1.0  0.00   4.0  18.0   3:00a   NNE
18  56.0  66.8   2:30p  48.0   7:30a   7.6   0.0  0.00   1.7   9.0   1:00p    NE
19  54.6  65.3   4:00p  45.4   7:30a   9.6   0.0  0.00   1.3   8.0  12:30p   SSW
20  63.1  79.7   2:30p  52.1  12:30a   0.0   0.9  0.01   2.4  17.0   8:30a   SSW
21  61.5  79.4   2:00p  50.0   5:30a   0.3   0.0  0.00   1.5  13.0   7:00a    SW
22  54.5  65.0   1:30p  49.0   5:00a   8.0   0.0  0.00   1.5  13.0   1:00p   SSW
23  55.6  62.9   3:30p  52.2   2:30a   7.4   0.0  0.00   2.5  14.0   5:00p   SSW
24  56.5  64.2   2:00p  51.0  11:30p   7.4   0.0  0.00   2.2  10.0   2:30a     W
25  56.0  65.5   2:30p  48.9   8:00a   7.8   0.0  0.00   1.7  10.0  12:30p   SSW
26  55.5  62.6   3:00p  50.9   3:30a   8.3   0.0  0.01   1.5  10.0  12:30p   SSW
27  58.2  67.0   2:00p  52.2   6:30a   5.4   0.0  0.89   8.2  39.0   8:30p     S
28  56.6  62.1   2:00p  50.4  12:00m   8.8   0.0  0.30   3.0  33.0  12:30a     W
29  55.0  66.4   2:00p  48.1   5:30a   7.8   0.0  0.01   1.9  14.0  12:30p   WSW
30  59.9  72.1   4:30p  51.4   1:00a   3.3   0.0  0.00   2.9  18.0   8:00a     N
31  59.7  72.2   3:00p  50.6   7:30a   3.6   0.0  0.00   1.9  18.0  12:30p     N
-------------------------------------------------------------------------------------
    59.9  83.4    10    45.4    19   129.5  15.5  1.31   2.4  39.0    27     SSW


Max >= 90.0:  0
Max <= 32.0:  0
Min <= 32.0:  0
Min <=  0.0:  0
Max Rain: 0.89 ON 10/27/99
Days of Rain: 3 (>.01 in) 2 (>.1 in) 0 (>1 in)
Heat Base:  65.0  Cool Base:  65.0  Method: (High + Low) / 2