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Spring-like temps to come to an end;
t-storms Saturday break the warmth
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Weather Alerts

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Slight risk for severe thunderstorms issued by SPC for today

Summary: 

A cold front will move through the region on Saturday afternoon into early evening, from west to east, and will be preceded by scattered showers and thunderstorms. Some of the most robust storms, expected to be along a squall line moving from west to east during the day, are capable of producing isolated wind gusts over 50mph, and a few may approach or exceed severe limits (>58mph)  

Impacts and Timing:

A squall line of t-storms will move across the coverage area from early afternoon in western sections to late afternoon and early evening in far eastern locations.

For more specific and advanced timing, impacts, and amounts by location for all future storm events, including realtime updates as storms head toward your county, click on the My Pocket Meteorologist image below for more information and to sign up.

SEVERE POTENTIAL FROM NWS/SPC - CLICK TO ENLARGE

spc

What does this mean? See chart below.

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Technical discussion

Storms will be able to take advantage of sufficient daytime heating out ahead of the front, and the combination of steep mid-level lapse rates, high bulk shear values, and a strong low-level jet, locally high gusty winds will accompany these storms as they move west to east across the coverage area on Saturday afternoon/early evening. 

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Bulk shear is abnormally high ahead of the cold front

Screenshot (265)

The 2pm sounding out of Allentown, PA Saturday shows severe potential

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Forecaster:  
Weather Alerts last updated: 7:10am Saturday February 25th, 2017 

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Current Watches, Warnings and Advisories for Pennsylvania Issued by the National Weather Service

...FLASH FLOOD WATCH IN EFFECT FROM 11 AM EST THIS MORNING THROUGH THIS AFTERNOON... The National Weather Service in Binghamton has issued a * Flash Flood Watch for portions of central New York and northeast Pennsylvania, including the following areas, in central New York, Broome, Chenango, Cortland, Delaware,
Author: w-nws.webmaster@noaa.gov
Posted: February 25, 2017, 9:10 am

Current Watches, Warnings and Advisories for New Jersey Issued by the National Weather Service

Patchy dense fog will restrict visibilities to one quarter of a mile or less at times this morning. Motorists should be alert while driving into rapidly reduced visibilities. Remember to slow down, use your low beam headlights, and leave plenty of distance ahead of you in case a sudden stop is needed.
Author: w-nws.webmaster@noaa.gov
Posted: February 25, 2017, 10:45 am

Current Watches, Warnings and Advisories for Delaware Issued by the National Weather Service

There are no active watches, warnings or advisories
Author: w-nws.webmaster@noaa.gov
Posted: February 25, 2017, 12:13 pm