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FEBRUARY 2000 WX REVIEW

Our unusual La Nina pattern of above average rains continued in many parts of No.Calif, as  Feb. became a record month in terms of # days with rain..with SF setting a record for measurable precip on 21 out of 29 days (leapyear). Here in Pacifica, where my "daily" time window is from 0000-2400, we had rain on 18 days. 11.36" fell, which is the third wettest Feb. in my records. While 11"+ is impressive for any month, it is dwarfed by the 13.59" in Feb.1998 (El Nino).
The month started out continuing late January 's Pineapple Connection pattern of tropical moisture being pumped north by a depressed EPac High and interacting with impulses swinging underneath a semi-permanent GOA low. With both features fairly stable, moisture streams from deep in the tropics took dead aim on the Cent. Calif Coast..leaving huge rain totals in the Santa Lucia Mountains  (27"+) and other orographically favored areas.
Rain rates locally peaked between the 11th and 14th, when well over 6" fell - the second time in less than a month that a Pineapple Connection had left around 1/2' FOOT of rain in a single visit. However, due to the very dry fall and early Winter period,  ground saturation took a lot longer to occur, so flooding was minimized.  After the mid-month hosing, the general storm track started to quickly evolve into a more Spring like pattern, with cutoff lows starting to track much more N-S, bringing heavy rain at last to SoCal and then inland, producing unusually early season severe weather in the southern plains through the Gulf Coast. As these lows moved past the coast, some of the heaviest winds of the season were noted, with winds peaking at 56mph on the 26th. Here's an interesting sidelight - while many places along the coast and especially inland experienced briefly severe weather in the form of  hail, T' Storms and very heavy downpours, (numerous funnel sightings near Fresno on the 28th) Pacifica seemed to escape the brunt of these events. Pea hail fell only once on the 28th,  and no T'storms or heavy frontal passages occurred all month - mostly wind and steady rains during the Pineapple hosing early in the month, and lighter steady rain intermixed with moderate rains later on.

                  
                   MONTHLY CLIMATOLOGICAL SUMMARY for FEB. 2000


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  56.0  63.0   3:00p  52.0   6:00a   7.5   0.0  0.01   2.8  14.0   6:30a     N
 2  55.7  63.1   4:30p  50.6   8:00a   8.2   0.0  0.00   5.4  23.0   2:30p     S
 3  54.6  62.1  11:30a  50.9   8:00p   8.5   0.0  0.50   5.4  44.0  12:30p     S
 4  54.1  59.3   4:00p  50.9   8:00a   9.9   0.0  0.00   4.2  26.0   4:30p   NNE
 5  54.6  55.9   5:30a  52.7  11:58p  10.7   0.0  0.41   6.9  38.0  11:58a     S
 6  55.1  62.8   3:58p  49.7  11:58p   8.8   0.0  0.00   2.7  20.0   1:28p   NNE
 7  52.9  59.8   1:28p  47.6   5:28a  11.3   0.0  0.01   1.8  15.0   6:28a   ENE
 8  51.7  64.1   1:28p  45.9   7:28a  10.0   0.0  0.01   1.2  14.0   1:28p   ESE
 9  53.7  59.1   1:28p  51.5  12:58a   9.7   0.0  0.05   4.0  31.0   8:00p     S
10  52.3  55.0   4:00p  47.8  11:00p  13.6   0.0  0.91   4.5  25.0   5:00a     S
11  48.7  52.4  10:00a  47.0   9:44p  15.3   0.0  1.80   6.9  51.0   3:00p     S
12  50.9  53.4  12:55p  48.4  12:01a  14.1   0.0  0.35   7.1  26.0  11:50p     S
13  54.5  57.2   6:35p  50.0   2:55a  11.4   0.0  2.27  15.5  54.0   4:50a     S
14  54.3  56.6   1:00a  49.3  11:55p   0.0   0.0  0.84  11.6  49.0   1:45a     S
15  51.6  57.4   1:45p  46.0   6:00a   0.0   0.0  0.00   1.4  13.0  11:20a     N
16  50.4  55.0   2:35p  47.6  10:10p  13.7   0.0  0.16   2.4  18.0  11:40a   SSW
17  50.0  56.7   1:55p  45.3   5:55a  14.0   0.0  0.01   1.3  13.0   1:00p   ESE
18  52.6  59.3   3:15p  47.7   5:00a  11.5   0.0  0.00   3.3  17.0  10:05a   NNE
19  56.8  64.0   3:25p  50.9   1:20a   7.5   0.0  0.00   3.9  17.0   5:50p   NNE
20  54.7  59.6   9:45a  49.7   8:40p  10.3   0.0  0.36   5.8  40.0   3:00p     S
21  52.3  62.3   2:25p  47.7   6:45a  10.0   0.0  0.31   2.9  17.0   4:35a   NNE
22  51.2  53.7  10:55a  47.0  12:00m  14.7   0.0  1.13  10.3  48.0   1:15p     S
23  48.2  53.7  12:45p  44.5   7:45a  15.9   0.0  0.03   2.0  15.0   3:50p     E
24  46.3  50.7  12:05p  43.6   6:55a  17.8   0.0  0.29   2.6  20.0   1:50p     S
25  50.1  54.6   2:25p  45.0  12:05a  15.2   0.0  0.00   3.6  21.0  11:25p     N
26  53.0  56.8   1:15p  51.3   7:15a  11.0   0.0  0.91  16.2  54.0   4:40p     S
27  51.9  56.4  12:45p  49.7   7:00a  11.9   0.0  0.32   9.1  45.0   1:25a     S
28  51.4  55.6   2:35p  48.7   6:00a  12.8   0.0  0.08   4.0  16.0   2:55a     S
29  51.0  56.6   2:05p  46.9  11:55p  13.3   0.0  0.60   5.1  29.0   5:55a   SSW
-------------------------------------------------------------------------------------
    52.4  64.1     8    43.6    24   318.6   0.0 11.36   5.3  54.0    13       S


Max >= 90.0:  0
Max <= 32.0:  0
Min <= 32.0:  0
Min <=  0.0:  0
Max Rain: 2.27 ON  2/13/00
Days of Rain: 18 (>.01 in) 15 (>.1 in) 3 (>1 in)
Heat Base:  65.0  Cool Base:  65.0  Method: (High + Low) / 2