NY NJ PA Weather Forecasts

Severe weather for Tuesday, June 9 2009

7:41:02 AM: A severe thunderstorm is currently moving through Philadelphia this hour.

7:41:29 AM: This thunderstorm is capable of wind gusts over 60 mph and penny size hail.

7:42:29 AM: A line of strong to severe thunderstorms will move through much of New Jersey and points east through the next 3 to 4 hours.

7:43:16 AM: The thunderstorms will be capable of heavy downpours, wind gusts exceeding 50 mph, large hail, frequent lightning, and reduced visibility.

7:42:29 AM: A line of strong to severe thunderstorms will move through much of New Jersey and points east through the next 3 to 4 hours.

7:43:16 AM: The thunderstorms will be capable of heavy downpours, wind gusts exceeding 50 mph, large hail, frequent lightning, and reduced visibility.

7:45:17 AM: However, as expected, the thunderstorms have started to weaken as they interact with the Marine air mass in place along the coast.

7:46:01 AM: Expect the threat to become very heavy rainfall and potential flash flooding for the Hudson Valley, NJ coast, NYC, Long Island, and CT.

7:47:42 AM: Expect updates via twitter, which can be followed on NY NJ PA Weather, through the day!

7:48:13 AM: Remember this is round one, a potential round two is expected this afternoon as discussed!

8:15:22 AM: Impressive heavy rainfall with this line of thunderstorms!

8:16:24 AM: The key for severe weather this afternoon is the amount of clearing behind this line of thunderstorms.

11:05:55 AM: Rapid clearing is developing over Eastern Pennsylvania which is allowing the atmosphere to destabilize.

11:06:58 AM: However low clouds along the coast continue to support a more stable, cool environment.

11:08:21 AM: Cumulus clouds over western Pennsylvania will need to be watched for thunderstorm development.

12:18:17 PM: New thunderstorms are rapidly developing over SW and south central PA. These thunderstorms will move east towards eastern PA.

2:04:36 PM: Very strong thunderstorms are rapidly developing through out southeastern PA this afternoon.

2:06:04 PM: Meanwhile the low clouds over NJ are rapidly breaking up. Once clearing develops, temperatures will rocket into the 80’s.

2:08:16 PM: The atmosphere is becoming rapidly unstable over the Delaware River Valley this afternoon, which will support strong to severethunderstorms.

2:40:12 PM: Thunderstorms throughout the region are reaching severe levels. The storms that are out ahead of the cold front can reach super cell status

5:51:38 PM: The most significant severe weather is going to be focused south of the forecast area.

5:52:48 PM: However showers and thunderstorms will remain a threat for the region through 8 PM.

5:52:48 PM: However showers and thunderstorms will remain a threat for the region through 8 PM.

7:58:09 PM: The majority of the severe weather is now over. There are a few isolated thunderstorms over NE PA and entering the Hudson Valley.

7:58:50 PM: However, these storms are weakening as the majority of the low level dynamics is focused over Washington, DC and points south.

8:00:20 PM: The cold front is slowly sinking through the forecast area this hour and will continue to do so through the evening.

8:00:43 PM: Overcast clouds and scattered showers will remain a theme through the overnight hours.

8:01:04 PM: This is the conclusion of the severe weather coverage for today.

Tags: live blog, severe weather, storm mode, twitter