A low pressure system that was located yesterday in the Carolinas will move up the Atlantic coast today, bringing with it rain, high winds, and plunging temperatures. While temperatures will be in the high 50s (°F) this morning, the passage of the cold front associated with this storm will cause temperatures to drop sharply throughout the day, eventually falling into the lower 40s (°F) by early evening. Combined with rain and gusty winds, deteriorating conditions will make for rather miserable weather this afternoon and evening.

A large low pressure system currently situated off the Mid-Atlantic coast will drift slowly northward this week, bringing more cloudy, windy, and rainy conditions to our area. The slow, meandering track of this storm means that these unfavorable conditions will persist for the majority of the week. While rain and drizzle will hang around for most of the day today, Wednesday will likely be the worst day of the week, with winds increasing and rain becoming heavy at times. The system will gradually move out on Thursday, with rain tapering off.

Although today is officially the second day of autumn, it will feel more like summer, with temperatures in the 80s (°F) for the next two days. A warm front associated with a low pressure system currently located west of the Great Lakes will bring warm air from our south today, making it feel more like late August than late September. High temperatures will continue through the end of tomorrow afternoon, after which a cold front will pass through, knocking temperatures back down to more seasonable levels in time for Sunday and the beginning of next week.

While relatively calm weather continues here in New England, a major hurricane is currently producing very strong winds in the Atlantic Ocean. Located about 700 miles (1,127 km) east of the Leeward Islands, Hurricane Igor was a Category 4 hurricane with maximum sustained winds of 150 mph (241 km/h) as of 5 p.m. yesterday. Igor is the ninth named tropical cyclone, the fourth hurricane, and the third major hurricane in the Atlantic basin this year, and while it is too soon to say whether it will directly impact the United States, Igor could reach Bermuda by this weekend.

A high pressure system will again bring sunshine to the Boston area this weekend. High temperatures will remain in the high 60s and low 70s °F, however, with the persistence of clouds early this morning as well as the arrival of cool northern air tomorrow during the day. While these temperatures are a bit cooler than those we have been used to the past few weeks, they are close to normal for this time of year. September often marks the time of year at which temperatures begin to fall with the arrival of autumn: The normal high temperature for September 1 in Boston is 9.2°F higher than the normal high for September 30. Certain events associated with warm weather are still possible, however. For instance, on this date in 1954, Hurricane Edna dumped 5.64 inches of rain in Boston.

While the Atlantic hurricane season started relatively slowly in June and July, tropical cyclones have recently become more frequent, and now a major hurricane has the potential to impact the East Coast of the United States. As of 5 p.m. last night, Hurricane Earl had become a Category 4 hurricane, with maximum sustained winds of 135 mph (217 km/h), and was situated just north of the Virgin Islands. Furthermore, global and regional computer models bring the track of the storm close to the Massachusetts coastline on Friday afternoon. If the storm does pass close to our area, high winds and heavy rainfall can be expected for the end of the week. However, it is still too soon to know whether the hurricane will affect our area, since track forecasts for the end of the week could be off by as many as several hundred miles.

This past Sunday, a severe thunderstorm blew through the Boston area, leaving scattered branches and toppled trees in its wake. The National Weather Service has confirmed that the wind damage associated with this storm was caused by a macroburst, or a large downdraft of air usually generated by a thunderstorm, which can cause very strong, sustained winds over an area several miles wide. While quite different from tornadoes, macrobursts can cause similar damage in some cases. During the macroburst this past weekend, the Green Building recorded a wind gust of 56 mph.

The same low pressure system that caused a deadly tornado outbreak in the southeastern United States over this past weekend is responsible for the presence of rain showers in the Boston area this morning. While this storm is not expected to cause severe weather this far north, it will leave clouds and rain hanging around until a cold front sweeps through the area later today. The frontal passage will lead to windy conditions and plummeting temperatures this evening as it ushers in a mass of cold Canadian air. However, the cold spell will be short-lived, as sunshine will return for the end of the week, returning springlike temperatures in time for the upcoming weekend.

After a week filled with cloudy skies and drenching rain that brought record flooding to much of New England, the Boston area will be treated to a picture-perfect spring weekend. The cutoff low pressure system that brought persistent rainfall earlier this week has moved off the coast, leaving in its wake a high pressure system that will bring sunny skies and warm temperatures to the region.

A major coastal storm has again hit the Northeast, bringing snow and rain as well as high winds to the I-95 corridor from Washington, D.C. to Boston. The same storm that brought rain and snow to the Midwest earlier this week has now moved off of the coast of the Mid-Atlantic. After moving over the ocean, the storm began to rapidly strengthen, resulting in additional precipitation and high winds for much of the Northeast region. As of Thursday evening, the National Weather Service had issued winter storm warnings, high wind warnings, and flood warnings up and down the coast in anticipation of dangerous conditions created by the coastal low.