Thursday, January 9, 2014

Freezing Rain Advisory

Freezing Rain Advisory (New Jersey)
2014-01-09T15:26:00GMT-0500
2014-01-10T09:00:00GMT-0500
A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.
...WINTRY PRECIPITATION POSSIBLE TONIGHT THROUGH TOMORROW MORNING...

...FREEZING RAIN ADVISORY IN EFFECT FROM 3 AM TO 9 AM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZING RAIN ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM EST FRIDAY. * LOCATIONS...NEAR AND ALONG THE INTERSTATE 95 CORRIDOR AND EAST CENTRAL NEW JERSEY * HAZARD TYPES...FREEZING RAIN. SOME SNOW POSSIBLE EARLY IN THE EVENT. * ICE ACCUMULATIONS...AROUND A TRACE. * TIMING...SNOW COULD BEGIN AFTER MIDNIGHT TONIGHT...CHANGING OVER TO FREEZING RAIN BEFORE THE MORNING COMMUTE. PRECIPITATION WILL CHANGE OVER TO ALL RAIN BY MID MORNING. * IMPACTS...THE PRIMARY PERIOD OF FREEZING RAIN WILL OCCUR DURING THE MORNING COMMUTE. MOTORISTS ARE URGED TO EXERCISE CAUTION FOR BLACK ICE...ESPECIALLY ON BRIDGES AND OVERPASSES. * WINDS...VARIABLE DIRECTION OF 5 MPH OR LESS. * TEMPERATURES...IN THE UPPER 20S.
Camden; Cumberland; Gloucester; Mercer; Middlesex; Northwestern Burlington; Salem; Western Monmouth
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Wednesday, January 8, 2014

Flood Watch For An Ice Jam

Flash Flood Watch (New Jersey)
2014-01-08T10:21:00GMT-0500
2014-01-09T06:00:00GMT-0500
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.
...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT FOR AREAS ADJACENT TO THE DELAWARE RIVER DUE TO AN ICE JAM...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NEW JERSEY AND SOUTHEAST PENNSYLVANIA...ADJACENT TO THE DELAWARE RIVER...INCLUDING MERCER AND NORTHWESTERN BURLINGTON COUNTIES IN NEW JERSEY...AND LOWER BUCKS AND PHILADELPHIA COUNTIES IN PENNSYLVANIA. * THROUGH LATE TONIGHT * AN ICE JAM HAS DEVELOPED ON THE DELAWARE RIVER NEAR TRENTON. THIS HAS RESULTED IN A FEW MILES OF NEAR BANK FULL CONDITIONS NORTH OF THE ICE JAM. WHEN THIS ICE JAM BREAKS...THERE MAY BE ENOUGH WATER BEHIND THE JAM TO CAUSE FLASH FLOODING DOWNSTREAM. * TEMPERATURES ARE EXPECTED TO REMAIN BELOW FREEZING TODAY AND TONIGHT...SO THE ICE JAM MAY NOT BREAK UNTIL TOMORROW MORNING. * THOUGH IT IS NOT POSSIBLE AT THIS TIME TO DETERMINE HOW HIGH THE WATER LEVELS WILL RISE ONCE THE ICE JAM BREAKS...THERE IS A RISK FOR FLASH FLOODING. * NAVIGATION AND INFRASTRUCTURE, SUCH AS DOCKS, COULD BE AFFECTED BY THE RELEASE.
Mercer; Northwestern Burlington
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Thursday, January 2, 2014

January 2-3, 2014 Storm Final Thoughts (Thursday AM)

Final thoughts are in. I am actually quite excited for this storm to get underway in the area. It has the "look" and "feel" out there of a big storm if there is such a thing. Temperatures have already started falling as I am currently sitting at 31 after a mornin temp of 34 during my drive into work this morning. 

Interaction between the polar and subtropical jets have started, now we just need to wait until the precipitation fills in. Areas up north in PA, NY, CT and MA already have snow falling. This is associated with the polar jet plunging south. 

Light snow showers will overspread the area this afternoon. Snow showers will be sparse at first but will fill in and intensify towards evening. Late evening and overnight snow will really pick up. Winds will also start cranking in response to a rapidly developing low pressure along the easy coast. Temperatures will also plummet to single digits in the north and the teens throughout the rest of the state and even to the coast!

Winds will be whipping the snow around and substantial drifting will occur. In addition, with cold temperatures (highs tomorrow in the low teens) salt will not have the same effect on the roads. It will be a lot harder to have the melting power  in the colder temps. 

Generally, I am looking for 2-4" across extreme SNJ, N DE and NE MD. 4-8" across much of CNJ including the Philly to Trenton area. I also like 6-10" across NNJ into the NYC area. Areas in CT 8-12"

The real wildcard here will be where some of the intense snow bands set up. Weather models have been showing them along the NJ coast (Ocean and Monmouth Counties) and over Long Island. They can set up anywhere, and getting stuck under them can raise snow amounts 2-4"

In any case, be safe and stay alert for warnings. I will be updating throughout the day!