AR3664 has rotated around the Earth-facing side of the sun and unleashed as many as 5 CME’s in recent days. Image courtesy spaceweather.com, NOAA Overview A very large sunspot region known officially as AR3664 has unleashed a series of coronal mass ejections (CMEs) towards Earth and a “severe” geomagnetic storm is a possibility this weekend. According to NOAA, the first three of these CMEs could merge and arrive on Saturday, May 11th and two others will follow close behind. This is the first “severe” watch issued by NOAA in 19 years and the results could be auroras farther south than usual an ..read more

6-Day forecast for the Denver, Colorado metro region Today Mainly cloudy, quite cool, chance of showers and thunderstorms, highs in the lower 50’s; NW winds around 5-10 mph Tonight Mostly cloudy, chilly, chance of showers and thunderstorms, lows in the lower 40’s Saturday Partly sunny, cool, windy, chance of PM showers and thunderstorms, lower 60’s for afternoon highs Saturday Night              Mainly cloudy, chilly, chance of showers, maybe a thunderstorm, middle 40’s for late night lows Sunday Mainly cloudy, cool, chance of sh ..read more

6-Day forecast for the Huntsville, Alabama metro region Today Mainly sunny, comfortably warm, highs in the mid-to-upper 70’s; N-NW winds around 5-15 mph Tonight Mostly clear, cool, lows in the lower 50’s Saturday Mainly sunny, pleasant, mid-to-upper 70’s for afternoon highs Saturday Night              Mainly clear, cool, low-to-mid 50’s for late night lows Sunday Mainly sunny, warm, near 80 degrees Monday Becoming mainly cloudy, warm, chance of PM showers and thunderstorms, near 80 degrees Tuesday Partly sunny, warm, chance of sh ..read more

6-Day forecast for the Philadelphia, PA metro region Today Unseasonably chilly today with periods of rain, quite breezy, highs in the lower 50’s (normal high at PHL is 73 degrees); E winds around 10-15 mph; gusts to 25 mph Tonight Mostly cloudy with occasional rain; primarily, during the evening hours, cold, lows in the low-to-mid 40’s Saturday Partly sunny, cool, chance of late day showers, lower 60’s for afternoon highs Saturday Night              Mainly cloudy, chilly, good chance of showers, mid-to-upper 40’s for late night l ..read more

6-Day forecast for the Washington, D.C. metro region Today Unseasonably cool today with occasional showers, maybe a thunderstorm, quite breezy, highs in the lower 60’s (normal high at DCA is 75 degrees); E-NE winds around 5-15 mph; gusts to 25 mph Tonight Mostly cloudy with occasional showers, maybe a thunderstorm, chilly, lows in the upper 40’s Saturday Partly sunny, cool, chance of PM showers, middle 60’s for afternoon highs Saturday Night              Mainly cloudy, chilly, good chance of showers, maybe a thunderstorm, near 50 ..read more

6-Day forecast for the Denver, Colorado metro region Today Mainly cloudy, unseasonably chilly, breezy, chance of rain and/or snow showers, maybe a rumble of thunder, highs not far from 50 degrees (normal high in Denver is 68 degrees); N-NE winds around 5-15 mph Tonight Mainly cloudy, breezy, cold, chance of rain and/or snow showers, maybe a rumble of thunder, lows in the upper 30’s Friday Mainly cloudy, windy, still unusually cool for this time of year, chance of showers and thunderstorms, lower 50’s for afternoon highs Friday Night          &n ..read more

6-Day forecast for the Huntsville, Alabama metro region Today Mainly cloudy with powerful thunderstorms crossing the region…watch for flash flooding this morning, possible damaging wind gusts and isolated tornadoes are on the table, breezy, becoming quite warm, humid, highs in the low-to-mid 80’s; S-SW winds around 10-15 mph Tonight Mainly cloudy, cooler late, chance of showers, lows near 60 degrees Friday Partly sunny, comfortable, chance of AM showers, lower 70’s for afternoon highs Friday Night              Mainly clear, cool ..read more

6-Day forecast for the Washington, D.C. metro region Today Cooler today with mainly cloudy skies and possible PM showers, maybe a late day thunderstorm, highs in the lower 70’s (normal high at DCA is 75 degrees); E winds around 5-10 mph Tonight Mostly cloudy with occasional showers, maybe a thunderstorm, cool, lows in the mid-to-upper 50’s Friday Mainly cloudy, quite cool, occasional rain, maybe a thunderstorm, lower 60’s for afternoon highs Friday Night              Mainly cloudy, chilly, occasional showers, maybe a thunderstorm ..read more

6-Day forecast for the Philadelphia, PA metro region Today Mainly cloudy, cooler, showers are possible in the afternoon, maybe a late day thunderstorm, highs in the upper 60’s (normal high at PHL is 72 degrees); Light and variable winds Tonight Mostly cloudy with occasional showers, maybe a thunderstorm, chilly, lows in the upper 40’s Friday Mainly cloudy, breezy, quite cool, occasional rain, maybe a thunderstorm, low-to-mid 50’s for afternoon highs Friday Night              Mainly cloudy, chilly, chance of showers, mid 40’s for ..read more

6-Day forecast for the New York City metro region Today Cooler with increasing clouds today, chance of showers late, highs in the lower 70’s (normal high at Central Park is 70 degrees); Light and variable winds Tonight Mostly cloudy with occasional showers, maybe a thunderstorm, cool, lows in the upper 40’s Friday Mainly cloudy, quite cool, occasional rain, low-to-mid 50’s for afternoon highs Friday Night              Mainly cloudy, chilly, occasional showers, mid-to-upper 40’s for late night lows Saturday Partly sunny, cool, cha ..read more