Tuesday, August 30, 2011

Irene Sets 25 All-Time Rainfall Records

Update: In addition to the 18 all-time records on August 28, there were 24 more which set new daily records for any date in August.

Original post:
Preliminary reports from the National Climatic Data Center (NCDC) indicate that rainfall from Hurricane Irene set 25 all-time daily rainfall records on August 27-29 from North Carolina to Maine. The map (click to enlarge) from NCDC shows the 18 locations which set records on August 28 alone. First Order National Weather Service stations include:
                 Amount    Previous Record

Danbury CT 5.35" 5.22" 2008-09-06
Teterboro NJ 5.41" 4.22" 2004-09-29
Glens Falls NY 3.67" 3.65" 1971-08-28
St. Johnsbury VT 4.83" 4.53" 1999-09-17
The St. Johnsbury climate record extends back 118 years.

Dr. Jeff Masters also reports that the 11.23" of rain at Mendo, Vermont "was the greatest single-day rainfall in Vermont's history, according to wunderground's weather historian Christopher C. Burt, beating the 9.92" that fell at Mt. Mansfield on 9/17/1999 during the passage of Tropical Storm Floyd. The 13.30" that fell on East Durham, NY during Irene was just shy of New York State's all-time 1-day rainfall record: 13.70" at Brewster on 9/16/1999, from Tropical Storm Floyd."

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