Damaging Winds Possible Monday

Damaging Winds Possible Monday

Winds may bring down tree limbs and power lines Monday, October 7.
An early October stormy day will give the Northeast heavy rain and strong winds Monday and Monday evening.

The biggest threat to public safety will be the wind. A strengthening low pressure system moving through southeast Canada will create sustained winds 15-25 mph from the south/southeast through the evening hours, embedded with wind gusts between 30 and 50 mph from time to time. Weaker and smaller tree limbs and branches will come down, causing isolated pockets of power outages and possibly damage to personal property.

In fact a tornado watch was posted for New York, Pennsylvania, New Jersey, and south to the Washington D.C. area through 5 p.m. Monday. This watch means given the atmospheric conditions, tornadoes will be possible. For more information on any tornado alerts, go here: http://www.erh.noaa.gov/

The science behind the tornado threat is low level wind. There will be a lot of wind shear with this weather system. Wind shear is the change of wind speed or direction across a distance. In this case, the wind shear will be primarily speed. The 8 a.m. weather update from Albany, NY showed a wind speed of 10 mph from the southeast with a gust to 20 mph. However about 3,000 feet above ground level the wind speed was about 50 mph! When there is that low level turbulence and wind sheer present, it's easier to spin up smaller/weaker tornadoes that can feature winds up to 70 to 80 mph. That will be enough to cause tree and/or property damage.

The tornado watch posted Monday was for New York, butting up against the Vermont border. People across New England and the Northeast should watch the weather carefully Monday, regardless if under a weather alert or not. The heavy rain/wind will move across New York between 2-5 p.m., Vermont 4-7 p.m., and New Hampshire 6-9 p.m Monday. Rainfall may even cause ponding on roadways and very temporary flooding in low lying/poor drainage spots. Though widespread flooding will not be likely from this system, again it's more of a wind threat.

For the complete forecast and any automatic weather alerts/warnings, go to our weather section!
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-Meteorologist Steve Glazier
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