Hydrologic Outlook
Issued by NWS Upton, NY
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124 FGUS71 KOKX 121333 ESFOKX CTC001-007-009-011-NJC003-013-017-031-039-NYC005-047-059-061-071-079- 081-085-087-103-119-261800- WINTER/SPRING FLOOD POTENTIAL OUTLOOK NATIONAL WEATHER SERVICE NEW YORK NY 933 AM EST Thu Apr 12 2018 ...Spring Flood Potential Outlook... This is the last spring flood potential outlook in a series of routine winter/spring flood potential statements intended to provide insight into the likelihood of river flooding (not flash flooding) over the Lower Hudson River Valley, Northeast New Jersey, Southern Connecticut, New York City and Long Island over the next two weeks. This outlook is based on current assessment of Hydro- Meteorological factors which contribute to river flooding. These factors include recent precipitation, soil moisture, snow cover and snow water equivalent, river ice, stream flow and future weather conditions. This outlook does not address the severity of any future river flooding. The latest climate prediction center 6 to 10 day outlook valid from April 17th through the 21st suggests below normal temperatures and below normal precipitation across the Hydrologic Service Area. The 8 to 14 day outlook valid from April 19th through the 25th suggests below normal temperatures and above normal precipitation across the Hydrologic Service Area. Heavy rainfall is the primary factor which leads to river flooding. It is important to note that heavy rainfall can rapidly cause river flooding any time of the year, even when overall river flooding potential is considered low or below normal. Current flooding - None. Precipitation - Precipitation departures across the Hydrologic Service Area during the last 60 days ending on April 12th were normal to above normal. Snow depth and Water equivalent - There is currently no snow cover grounds across the Hydrologic Service Area. River flows - Across the local Hydrologic Service Area, rivers and streams are running normal. Real-Time Water data can be found by visiting the USGS at www.usgs.gov/water. Soil moisture - Above normal. Soil moisture and drought related data and charts can be seen at: www.cpc.ncep.noaa.gov and www.drought.gov. Reservoir conditions - Reservoir levels across the New York City water supply system are normal. Reservoir levels across the combined 13 Northeast New Jersey reservoirs are 9 percent above normal. Summary - During the two week outlook period expect temperatures to remain below normal and precipitation to be below normal during the first week of the outlook period then above normal during the second week of the outlook period. For complete weather information, visit our web site at: water.weather.gov/ahps2/index.php?wfo=okx You can follow us on Facebook at: www.facebook.com/NWSNewYorkNY You can follow us on Twitter at: @NWSNewYorkNY $$

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National Weather Service
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
Page last modified: 12-Apr-2018 1:33 PM
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