Thursday, August 04, 2011

Typical August weather

Flash flooding yesterday in Puerto Rico from TS Emily. (weather.com)

It looks like we are going to settle into a typical August pattern for the next few days. The nights have turned noticeably cooler and the days are staying around 27C. We have clouds this morning as a northeast breeze is producing a maritime layer of air over the St. Lawrence Valley. Temperatures are cooler at 19C. The sunshine has broken out in Ontario and across the Ottawa Valley, so I expect skies to clear here before noon. Friday will be spectacular, before an unsettled weekend with showers Saturday at 29C and Sunday at 23C.

Tropical Storm Emily is located about 40 miles south southwest of Isla Beata, Dominican Republic at 8am. The storm is slowly expected to drift northwest across Haiti today. The main threat remains very heavy rain with 6-12 inches forecast and as much as 20 inches. With 600,000 people still living outdoors after the January 2010 quake, this could be critical with flash floods and mudslides possible. Yesterday Puerto Rico reported flash flooding along many roadways and villages. The storm remains a threat to the Bahamas and perhaps the southeast US this weekend. Emily has 50 mph winds and will weaken slightly today while interacting with Haiti. She is expected to slowly gain strength into the weekend and could reach hurricane strength by Sunday off the Carolina's. There remains lost of uncertainty in the forecast, check the link on the left often for the latest updates from the NHC.

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