Wednesday, July 25, 2012

fog town... (pm.25.jul.12)>

It is cloudy on this Wednesday evening, and I don't think it could possibly be any foggier.  Visibility has been very close to zero around the area (right around 6pm).  We're getting some light to moderate showers at the moment... but, I had only 0.04" (1mm) in my rain gauge as of 5:00pm, in addition to the 0.30" (8mm) which fell during the wee hours of the morning (check back here for rainfall updates later this evening). Today's high temperature has been 73.0F (22.8C), which is the coolest max temp I've recorded in the past ten days.

Update @ 10:11pm... Moderate rain in progress here in the upper part of town.  Total rainfall today (since midnight) is now 0.48" (1.2cm).

Update @ 9:48pm... Lots of thunder/lightning and thick fog during the past hour.  But rain has been sparse... that may change shortly.

Update @ 7:34pm... Only brief showers thus far this evening.  I have a total of 0.11" (3mm) since 7:00am.  Total rainfall since midnight has been 0.41" (1.0cm).  Will update if more significant rain develops...

The atmosphere is obviously loaded with moisture, so it's just a matter of time until we reach the point when things boil over, and we get our next round of heavy rainfall.  Lately, our heaviest rains have been occurring during the overnight hours -- we'll see if we repeat that trend again tonight.  Apart from the rain, we're firmly in the zone of saturation, with humidity remaining mainly in the 95-100% range, both day and night.

According to water vapor satellite imagery and other atmospheric data, the drier air in the middle and upper levels of the atmosphere that provided us with extended periods of sunshine and even a few hours of moderate humidity here and there has retreated well to the west.  It shows no sign of returning during the next several days at least, so there's a good bet we'll continue to see much more clouds and fog than sun, along with increasing daily rainfall rates as we approach the end of the month.

WEDNESDAY NIGHT:
cloudy and foggy.  periods of rain and thunder likely.
low: 19C (67F)

THURSDAY:
mostly cloudy with occasional fog.  a period or two of rain and some thunder likely.
high: 23C (73F)

THURSDAY NIGHT:
mostly cloudy and foggy.  a period or two of rain and thunder likely.
low: 19C (67F)

FRIDAY:
perhaps a period or two of sun?  otherwise mostly cloudy and foggy at times.  a couple of rounds of showers/thundershowers likely.
high: 23C (74F)

SATURDAY:
a bit of sun in the midst of clouds and fog.  some showers and thundershowers still likely.
morning low: 19C (67F)
daytime high: 23C (74F)

SUNDAY:
mostly cloudy with periods of fog.  better chance of heavy rain and thunder.
morning low: 19C (66F)
daytime high: 23C (73F)

MONDAY:
mostly cloudy and foggy with periods of rain.  some thunder possible as well.
morning low: 18C (65F)
daytime high: 22C (72F)