Drought Watch Suffolk County
Drought Watch Suffolk County
The lack of rainfall this spring and summer is not a surprise to most. However Suffolk County has been hit especially hard missing out on any thunderstorm activity at all that has hit Long Island in the last several weeks. At least Nassau County has seen something from time to time. Suffolk County has seen little or nothing from that respect. The lack of rainfall has put Suffolk County in a moderate to severe drought condition for the first time since 2012.
SYNOPSIS... A PERSISTENT WEATHER PATTERN NOT FAVORABLE FOR MUCH PRECIPITATION THIS SPRING AND SUMMER, HAS LED TO RAINFALL DEFICITS OF UP TO FOURTH INCHES ACROSS PARTS OF SUFFOLK COUNTY. THE AUGUST 2ND RELEASE OF THE U.S. DROUGHT MONITOR CONTINUED SEVERE DROUGHT CONDITIONS FOR PARTS OF SUFFOLK COUNTY AND MODERATE DROUGHT FOR THE REMAINDER OF THE COUNTY. THE LAST TIME SUFFOLK COUNTY EXPERIENCED SEVERE DROUGHT CONDITIONS WAS BACK IN APRIL 2012. THE DROUGHT MONITOR IS UPDATED WEEKLY WITH THE LATEST CONDITIONS AVAILABLE ONLINE. SUMMARY OF IMPACTS... THE LATEST NEW YORK STATE DROUGHT MANAGEMENT TASK FORCE HAVE PLACED PARTS OF SUFFOLK COUNTY UNDER A DROUGHT WATCH FOR SEVERE DROUGHT CONDITIONS. FOR THE LATEST DROUGHT CONDITIONS AS DETERMINED BY THE TASK FORCE...PLEASE VISIT: HTTP://WWW.DEC.NY.GOV/LANDS/5017.HTML SOIL MOISTURE CONDITIONS... THE LATEST CROP MOISTURE INDEX ISSUED BY THE CLIMATE PREDICTION CENTER INDICATED ABNORMALLY DRY SOIL MOISTURE ACROSS SUFFOLK COUNTY. GROUNDWATER CONDITIONS... THE USGS GROUND WATER LEVEL NETWORK SHOWS THAT NUMEROUS WELLS ACROSS THE SUFFOLK COUNTY ARE RUNNING BELOW NORMAL TO MUCH BELOW NORMAL. IT TYPICALLY TAKES A LONG TIME ON THE ORDER OF WEEKS FOR GROUND WATER TABLES TO RESPOND TO RAINFALL...OR TO THE LACK OF RAINFALL. RIVER AND STREAMFLOW CONDITIONS... FLOWS ON STREAMS ACROSS SUFFOLK COUNTY ARE MUCH BELOW NORMAL. CLIMATE SUMMARY... PRECIPITATION DEPARTURE IN INCHES FOR THE PAST 5 MONTHS ACROSS SUFFOLK COUNTY. MARCH APRIL MAY JUNE JULY LOCATION ISP AIRPORT -1.72 -1.95 -0.17 -3.14 -0.21 UPTON, NY -3.38 -2.70 -3.35 -1.19 -3.19 RIVERHEAD, NY -3.42 -2.74 -3.66 -1.23 -2.89 MATTITUCK, NY -2.94 -3.47 -3.10 -1.24 -2.38 PRECIPITATION/TEMPERATURE OUTLOOK... THE 6 TO 10 DAY OUTLOOK ISSUED BY THE CLIMATE PREDICTION CENTER VALID FROM AUGUST 14TH THROUGH THE 18TH SHOWS TEMPERATURES ABOVE NORMAL AND PRECIPITATION ABOVE NORMAL. THE 8 TO 14 DAY OUTLOOK VALID FROM AUGUST 16TH THROUGH THE 22ND SHOWS TEMPERATURES CONTINUE TO BE ABOVE NORMAL WHILE PRECIPITATION IS EXPECTED TO BE NORMAL.
The rainfall departures from normal have been extreme for the east end with deficits of over a foot of rain going back to last March! Just to lend some perspective, a foot of rain is roughly 4 months of rain. All of that at one time would mean for flooding of course. Spread out over the course of several months would be ideal. All of this could be taken care of by one tropical storm. Nothing in terms of a pattern changes appears ahead of us at the moment. Weather models offer hope for some rain on the order of a few inches between now and early next week but it is hard to get excited about this given the fact that it seems to find a way not to rain.
Radars do show some showers to the west that could bring some rain at some point today. More widespread rain is possible over the weekend. We will evaluate the situation as we get closer to the weekend.
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