CLOUDS ON THE INCREASE FOR THE SECOND HALF OF LABOR DAY WEEKEND

PREDICTABILITY OF FORECAST PERIOD: MEDIUM

 

1. After a warm, sunny Saturday, clouds will build in for Sunday through much of Tuesday before clearing works in Wednesday-Thursday.  Overall pattern will turn overcast, with fog likely at night (especially near the coast)

Intellicast Temps and Clouds through the period:

 

2. RAIN: Sunday-Monday are mostly dry, but a risk of a stray shower is possible in the afternoon. Higher Chance Monday. Then, more numerous showers Tuesday, as what remains of Isaac passes through. Rainfall totals could average around an inch area-wide, with some higher amounts.

NOAA HPC Rainfall amounts Tuesday

 

3. Another front charges in Thursday evening/Friday morning, with showers and thunderstorms a good possibility.

 

4. We’ll have to monitor the track of Leslie in the Atlantic. Seas will certainly build beginning Wednesday at the ocean; the closest pass to our coastline would come by late next week, but too much uncertainty exists to say how close at this point. Bears watching.

GFS model spray for Leslie

5. Astronomical rainfall from Isaac this past week over the Mississippi Delta Region was recorded via doppler radar estimates. Areas in pink represent over fifteen inches of rainfall!

ANOTHER STRETCH OF FAIR WEATHER RIGHT THROUGH THE HOLIDAY WEEKEND

PREDICTABILITY OF FORECAST PERIOD THROUGH SUNDAY: HIGH 
PREDICTABILITY OF FORECAST PERIOD FOR MONDAY- LOW

1. No changes to last overview regarding tomorrow (Tuesday). Rain and thunderstorms will make for a slow morning commute. Clearing by midmorning/early afternoon, then temps start to level off even more as humidity drops.

2. Wednesday-Thursday: fair skies prevail, with very comfortable nights. Temps in the outlying suburbs of NYC will see low temps solidly into the 50s!

ACCUWEATHER graphic shows widespread 50s away from the city Thursday night in green:

3. Friday/Saturday: Temps/humidity values reach their peak, with highs around 90. Sunday/Monday is cooler, with readings near normal.

INTELLICAST:

4. Best chances for numerous showers wait until Monday, as some moisture from a decayed Isaac gets pushed towards us by a front. impact expected with this rainfall should only be a nuisance, and not lead to a substantial flood threat.

5. Isaac will virtually stall over the Mississippi River Valley; potential for catastrophic inland flooding, as well as the likelihood of hardship for many of the same areas hit by Hurricane Katrina back in 2005.