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NOVEMBER 1999 WEATHER REVIEW

A slightly above normal rain total for the month with 4.12". While Pacifica may be near normal, the rest of California except for the far Northwest corner is slightly to much below rainfall to date. SoCal has had virtually zero rain to date. As is common in La Nina years, storms rapidly loose steam as they approach then drop southward along the coast as dry Continental air evoporates the fronts as they advect to the east. Temps were near to slightly above normal, with a minor frost in the low lying areas on the 22nd following a cold trough passage on the 21st that dropped brief, heavy rain. The pattern does not remind of drought years when blocking highs shunt storms completely out of our area. In fact there was no real shortage of rain days, as we had 11 days with rain...however only 1 day exceeded 1" (1.06" on the 7th). Most fronts, despite being juicy up north, are dropping only around 0.5' to 0.75" of precip here. The general pattern seems to be a gradual decrease in upper air dynamics as SST's hover in the low 50's near the coast. Because of   mild temps, many trees that started their annual drops in October still have much foliage left...and some vine plants such as our Morninglory is currently in a growth spurt . The local apple tree still has >50% foliage and the remaining leaves are still a healthy green. Also due to the below average rains in the Central Valleys, tule fog has beem limited to just patchy areas, with no widespread valley fogs as yet. If this pattern remains consistant with previous year's, we can expect low rains in December and chilly temps, expecially toward the end of the month. Last year saw some of the coldest temps on record and a very unusual snow in Pacifica on the 20th..which led to a cold,  dry early Winter with near-normal rains and continued chilly temps in late Winter and early Spring.

                   MONTHLY CLIMATOLOGICAL SUMMARY for NOV. 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  66.3  76.5   4:00p  57.5   3:30a   0.0   2.0  0.00   2.9  17.0   6:00a     N
 2  57.2  64.0   1:00p  50.2   9:30a   7.9   0.0  0.00   1.5  10.0   7:30p    SW
 3  53.9  56.8   2:00p  49.2  12:00m  12.0   0.0  0.00   1.6   8.0   1:30a   SSW
 4  56.5  65.6   2:00p  49.1  12:30a   7.7   0.0  0.00   1.9  10.0   9:30a   SSW
 5  57.3  67.6   3:00p  51.6   1:30a   5.4   0.0  0.01   2.2  20.0   7:30p   SSW
 6  58.8  64.3   1:30p  54.2  12:30a   5.8   0.0  0.00   6.5  31.0   3:30p     S
 7  58.2  65.6   1:00p  53.5   6:30p   5.5   0.0  1.06   9.5  42.0   4:30p     S
 8  55.6  62.0   2:00p  49.3  12:00m   9.3   0.0  0.30   3.9  39.0   1:00a     S
 9  54.4  62.4   2:00p  47.8   3:00a   9.9   0.0  0.01   1.9  13.0   2:00p   SSW
10  58.9  64.1   3:00p  55.2  12:30a   5.3   0.0  0.00   4.4  22.0   3:30p     S
11  60.2  68.8   3:30p  53.7  11:00p   3.8   0.0  0.00   1.8  12.0  12:00p     S
12  62.2  70.1   3:00p  54.1  12:30a   2.9   0.0  0.00   3.6  16.0   9:30a     N
13  60.6  70.3   1:30p  54.4   8:30p   2.6   0.0  0.00   2.1  15.0   2:30a   SSW
14  55.4  59.3  12:00p  49.8   5:00a  10.5   0.0  0.07   3.0  22.0  10:30p     S
15  60.0  65.8   2:30p  57.3   7:30a   3.4   0.0  0.03   4.5  25.0   8:00a   SSW
16  56.4  62.2  12:00p  50.6  10:30p   8.6   0.0  0.67   5.0  36.0   2:00p     S
17  52.9  58.8   3:00p  48.2  12:00m  11.5   0.0  0.11   1.6  18.0   1:00a     S
18  53.4  60.6   3:00p  47.9  12:30a  10.8   0.0  0.01   2.4  12.0   9:30a     N
19  56.1  57.7   7:30a  53.0   2:00a   9.7   0.0  0.66   6.0  44.0   1:00p     S
20  54.5  57.9   4:30p  51.8   9:00p  10.2   0.0  0.01   2.3  18.0   2:30p   SSW
21  52.3  56.6   1:30p  46.4  12:00m  13.5   0.0  0.15   5.3  27.0   2:30p     N
22  49.4  58.4   2:30p  43.5   7:30a  14.0   0.0  0.00   1.4  11.0   3:00p     N
23  50.9  59.8   3:00p  45.3   7:30a  12.5   0.0  0.00   0.9   7.0  12:30p     N
24  51.9  58.4   3:30p  47.0   2:00a  12.3   0.0  0.00   1.7  14.0  10:30a     W
25  53.4  60.4   2:30p  48.1   9:00a  10.8   0.0  0.01   1.5  10.0  11:30a   SSW
26  54.8  57.8   2:30p  52.3   8:00a  10.0   0.0  0.01   1.9  11.0   1:00p   SSW
27  55.4  57.0   5:00p  54.4   4:00a   9.3   0.0  0.03   0.9  12.0   2:00p     N
28  55.1  58.5   4:00p  52.6   8:30a   9.5   0.0  0.01   2.6  17.0  11:00a   NNE
29  56.2  60.1   5:00p  52.2   4:30a   8.8   0.0  0.61   6.5  36.0  10:30p     S
30  52.9  56.6   1:30p  48.1  10:00p  12.7   0.0  0.36   7.6  31.0   5:00p     S
-------------------------------------------------------------------------------------
    56.0  76.5     1    43.5    22   255.9   2.0  4.12   3.3  44.0    19       S


Max >= 90.0:  0
Max <= 32.0:  0
Min <= 32.0:  0
Min <=  0.0:  0
Max Rain: 1.06 ON 11/07/99
Days of Rain: 11 (>.01 in) 8 (>.1 in) 1 (>1 in)
Heat Base:  65.0  Cool Base:  65.0  Method: (High + Low) / 2