Long Island and Mid-Atlantic Record Deluge Pattern and Analysis


Figure 1. FLASH image of radar-based 3-hour rainfall rate return periods, in years as per the color bar. A loop of these data is available here. Return to text



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Figure 1. FLASH image of radar-based 3-hour rainfall rate return periods, in years as per the color bar. A loop of these data is available here. Return to text.




Figure 2. As in Figure 11 except for over the Baltimore area at 1900 UTC 12 August 2014. A loop is available. Return to text.














KISP – Islip, NY

Observed

1 Year PF Estimate

10 Year PF Estimate

100 Year PF Estimate

500 Year PF Estimate

Time Window

1 Hour

5.34

0.90

1.57

2.60

3.72

0900-1000 UTC 13 August 2014

6 Hour

12.92

1.85

3.37

5.95

8.86

0600-1200 UTC 13 August 2014

Table 4. Islip, NY ASOS. 1-hour observed total 0900 to 1000 UTC and the 6-hour observed total 0600 to 1200 UTC August 13, 2014 compared to the NRCC Extreme Precipitation Analysis webpage for 1, 10, 100, and 500 year return periods. Return to text.


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