irma HARVEY LABOR DAY RAINFALL

Harvey Rains Saturday Afternoon Into Sunday Labor Day Warm

Harvey Rains Saturday Afternoon Into Sunday Labor Day Warm

 

Harvey Rains Saturday Afternoon Into Sunday Labor Day Warm Hurricane Irma No Threat to Land This Weekend

There are at least no hurricane threats for the Labor Day Holiday weekend though we are going to be seeing the remnants of Harvey move through here late Saturday afternoon into Sunday morning. Harvey’s remnant circulation is evident on the satellite loop this morning as it moves into the Ohio Valley while we sit here in sunshine and cool temperatures today. High pressure is building across Southeast Canada so we are getting a rather nice almost autumn like flow from the north with temperatures today reaching the upper 60s to lower 70s.

harvey

Tonight look for some very cool temperatures particularly inland and away from urban settings and as long as skies stay clear all night. Most lows will be in the 40s and in some of the coldest spots a few 30s could spring up.

SATELLITE LOOP

storm free

REGIONAL RADAR

storm free

Saturday we will see some rain begin to advance northward into Southern New Jersey and Southeastern Pennsylvania. It should hold off spreading into Northern New Jersey and Southern New England until late afternoon or early evening. It looks like things might be moving a bit faster so this will have to be watched closely for timing. Rain Saturday night into Sunday morning should come to an end from south to north around daybreak or a bit afterwards. Then we will spend the day fighting the leftover clouds with temperatures in the 70s.

NAM MODEL RAINFALL FORECAST FOR SATURDAY NIGHT INTO SUNDAY

HARVEY LABOR DAY RAINFALL

Rainfall forecasts aren’t especially heavy with most amounts falling in the 1/2 inch to an inch and a half with less as you go north and northeast of NYC and more as you go southeast of Philadelphia. Sometimes remnant rains from tropical storms can create flash flood problems but this at least appears to be manageable. Monday Labor Day will be sunny and warm and probably a solid summer day with highs back into the 80s with moderate levels of humidity. At least one day of the last weekend of the summer vacation season will feature a warm beach day.

HURRICANE IRMA SATELLITE LOOP
storm free

Hurricane Irma is a major hurricane with top winds of 115 mph. It is way out in the tropical Atlantic some 1600 miles east of the Leeward Islands. Irma has peaked in intensity for now but it will be a major hurricane and conditions will be come favorable again for strengthening once Irma goes west of 45 degrees west. Irma is likely to become a category 4 hurricane early next week. It is no immediate threat to any land areas but it will need to be watched closely since the pattern would favor Irma passing very close to the Leeward Islands and then move toward the US East Coast. We will have more on Irma later today.

…IRMA HOLDING STEADY WITH 115-MPH WINDS…

 

SUMMARY OF 500 AM AST…0900 UTC…INFORMATION
———————————————-
LOCATION…18.2N 36.5W
ABOUT 840 MI…1350 KM WNW OF THE CABO VERDE ISLANDS
ABOUT 1665 MI…2680 KM E OF THE LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS…115 MPH…185 KM/H
PRESENT MOVEMENT…WNW OR 300 DEGREES AT 12 MPH…19 KM/H
MINIMUM CENTRAL PRESSURE…967 MB…28.56 INCHES

 

WATCHES AND WARNINGS
——————–
There are no coastal watches or warnings in effect.

 

DISCUSSION AND 48-HOUR OUTLOOK
——————————
At 500 AM AST (0900 UTC), the center of Hurricane Irma was located
near latitude 18.2 North, longitude 36.5 West. Irma is moving
toward the west-northwest near 12 mph (19 km/h). A turn toward the
west is expected by tonight, followed by a turn toward the
west-southwest on Saturday.

Maximum sustained winds remain near 115 mph (185 km/h) with higher
gusts. Irma is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Fluctuations in strength, up or down, are
possible during the next few days, but Irma is expected to
remain a powerful hurricane through the weekend.

Hurricane-force winds extend outward up to 15 miles (30 km) from the
center, and tropical-storm-force winds extend outward up to 90 miles
(150 km).

The estimated minimum central pressure is 967 mb (28.56 inches).

 

HAZARDS AFFECTING LAND
———————-
None

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