Saturday, July 20, 2013

substantial rains... (am.20.jul.13)>

*Update @ 10:55am... Total rainfall now 3.11" (7.9cm) since all of this started around 1:00am.  It seems to be brightening up at the moment, but not sure if this will be a trend, or just a brief respite before further development happens this afternoon.

*Update @ 9:10am... The rain hasn't been heavy the last few hours, but it's been steady.  I now have 2.91" (7.4cm).

*Update @ 7:55am... Total rainfall now 2.66" (6.8cm) since the wee hours of the morning.  Still steady light rain falling here on Tushita Road.  I've also had a report from Norbulingkha of 6" (15cm) overnight!!  It seems the amounts have been heavier at elevations below McLeod recently...

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There is 2.43" (6.2cm) of rain in my gauge as of 6:00 this morning, and there is still light to moderate rain falling here in the upper part of McLeod Ganj.  As far as I can tell, the heavier rain started after midnight, and there was a considerable amount of thunder and lightning to go along with it -- especially between about 3:00 and 5:00am.  I'm showing an early morning low temp of 62.6F (17.0C), which is the coolest I've recorded this past week.

Well, the weather ingredients and variables we've been talking about all week did indeed come together during the past six hours or so, and we're getting that heavier rainfall that has been anticipated.  Satellite pics this morning show a couple of large clusters of rain and thunderstorms from northern Pakistan into Himachal Pradesh, thanks to the latest thick and juicy surge of tropical moisture bumping up against the front ranges of the Himalayas and getting lifted into cooler air aloft.  I don't think we'll have continuous heavy rain throughout the weekend -- instead, the rainfall intensity should wax and wane as the atmosphere temporarily stabilizes between surges of moisture and energy.  There hasn't been enough rain yet to really overwhelm our drainage system, but that could change during the coming 24-36 hours, so be aware of that.

I'm not seeing any major clearing trends during the coming days, but it does look like we could have a couple of relatively drier days during the early to middle part of next week.  Even then, the humidity won't drop much, and the fog will never be very far away.

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