Damaging Winds and Torrential Rains
September 18th, 2012

A complex and powerful low pressure system moved across the region on Tuesday, September 18th bringing damaging winds and widespread heavy rainfall. A low pressure system originating in the deep south approached the region from the southwest during the day as a strong cold front approached from the Great Lakes region. These systems merged and moved across the northeastern United States. Moisture was transported into the region on a very strong low level jet. Rainfall totals ranged from just over an inch up to around 7 inches with the highest amounts in the eastern Catskills. Despite instability being very limited, the winds field was so strong that showers and low-topped thunderstorms were able to transport stronger (damaging) winds to the surface.

For a more detailed look at this event go to: Severe low-topped convective lines with flash flooding

Local Storm Reports --- Peak Winds --- Precipitation Totals

24-hour Precipitation ending at 8 am EDT September 19th, 2012
12Z Sounding 18Z Sounding

Upper Air Soundings - Albany NY
12Z Sounding
8 am EDT Sep 18, 2012
18Z Sounding
8 pm EDT Sep 18, 2012

Link to all 12Z Upper Air Maps for Sept 18th, 2012
(Courtesy SPC)

Link to all 00Z Upper Air Maps for Sept 19th, 2012
(Courtesy SPC)

Surface Map 8 am Sep 17, 2012
Surface Map 8 am EDT Sep 17, 2012
500 mb Map 8 am Sep 17, 2012
500 mb Map 8 am EDT Sep 17, 2012
Surface Map 8 am Sep 18, 2012
Surface Map 8 am EDT Sep 18, 2012
500 mb Map 8 am Sep 18, 2012
500 mb Map 8 am EDT Sep 18, 2012
Surface Map 8 am Sep 19, 2012
Surface Map 8 am EDT Sep 19, 2012
500 mb Map 8 am Sep 19, 2012
500 mb Map 8 am EDT Sep 19, 2012