12:00 PM | *More evidence of an increase in cosmic rays as sun approaches minimum*

12:00 PM | *More evidence of an increase in cosmic rays as sun approaches minimum*

The sun is currently featuring one lonely visible sunspot region and this relatively blank look is becoming more and more common as solar cycle 24 heads towards the next solar minimum. In fact, there have been 42 days in 2017 with a completely blank sun – already ten more days than all of last year – and this makes up almost one-quarter of the time for this year. Solar cycle 24 has turned out to be historically weak with the lowest number of sunspots since cycle 14 peaked more than a century ago in 1906. In fact, by one measure, the current solar cycle is the third weakest since record keeping began in 1755 and it continues a weakening trend since solar cycle 21 peaked in 1980. One of the natural impacts of decreasing solar activity is the increase of cosmic rays that can penetrate into the Earth’s upper atmosphere and this can have many important consequences.

7:00 AM | Can't complain about today's weather conditions for late June

7:00 AM | Can't complain about today's weather conditions for late June

Last week ended on a very active note with the threat of severe weather as we closed out the work week, but the new week brings us a rather pleasant start. A relatively refreshing air mass for this time of year has dropped all the way into the southern states from the Upper Midwest and our temperatures over the next couple of days will be comfortably warm for late June. Heat and humidity will return later in the week as will the daily threat of showers and thunderstorms.

7:00 AM | A rather refreshing air mass for late June...heat and humidity return by the end of the week

7:00 AM | A rather refreshing air mass for late June...heat and humidity return by the end of the week

Following the passage of the remains of Tropical Storm Cindy, a refreshing air mass for late June has pushed across the Great Lakes and into the Mid-Atlantic region. Temperatures for the next few days will be rather comfortable around here for this time of year and downright cool for the Great Lakes, Upper Midwest and Northern Plains. It’ll turn very warm again towards the end of the week and the summer-like humidity will return.  The weather pattern will likely become unsettled again at the end of the week and that unsettled weather looks like it will continue through the weekend and into the early part of next week. A stalled out frontal boundary zone it likely to bring us a daily chance of showers and thunderstorms during this upcoming unsettled stretch. One final note, in the "deja vu" department, NASA/Wallops once again postponed the artificial cloud rocket launch which was scheduled for Saturday night - no new date has been set.

7:00 AM | A refreshing air mass for late June...heat and humidity return by the end of the week

7:00 AM | A refreshing air mass for late June...heat and humidity return by the end of the week

Following the passage of the remains of Tropical Storm Cindy, a refreshing air mass for late June has pushed across the Great Lakes and into the Mid-Atlantic region. Temperatures for the next few days will be rather comfortable around here for this time of year and downright cool for the Great Lakes, Upper Midwest and Northern Plains. It’ll turn very warm again towards the end of the week and the summer-like humidity will return.  The weather pattern will likely become unsettled again at the end of the week and that unsettled weather looks like it will continue through the weekend and into the early part of next week. A stalled out frontal boundary zone it likely to bring us a daily chance of showers and thunderstorms during this upcoming unsettled stretch. One final note, in the "deja vu" department, NASA/Wallops once again postponed the artificial cloud rocket launch which was scheduled for Saturday night - no new date has been set.

7:00 AM | Back to the daily threat of showers and thunderstorms

7:00 AM | Back to the daily threat of showers and thunderstorms

An approaching cool front will combine with lots of low-level moisture and cooling aloft to bring us the chance of showers and thunderstorms as we begin a new work week.  The threat for showers and thunderstorms will continue on Tuesday as well as the frontal boundary zone will stall out in this area.  In fact, it looks like we'll have a daily threat of showers and thunderstorms in central Florida right through the week and into the upcoming weekend. High temperatures over the next couple of days will be rather typical for late June primarily in the mid-to-upper 80’s across the region.  

7:00 AM | A refreshing air mass to start the week...heat and humidity return by the end of the week

7:00 AM | A refreshing air mass to start the week...heat and humidity return by the end of the week

Following the passage of the remains of Tropical Storm Cindy, a refreshing air mass for late June has pushed across the Great Lakes and into the Mid-Atlantic region. Temperatures for the next few days will be rather comfortable around here for this time of year and downright cool for the Great Lakes, Upper Midwest and Northern Plains. It’ll turn very warm again towards the end of the week and the summer-like humidity will return.  The weather pattern will likely become unsettled again at the end of the week and that unsettled weather looks like it will continue through the weekend and into the early part of next week. A stalled out frontal boundary zone it likely to bring us a daily chance of showers and thunderstorms during this upcoming unsettled stretch. One final note, in the "deja vu" department, NASA/Wallops once again postponed the artificial cloud rocket launch which was scheduled for Saturday night - no new date has been set.

11:50 AM | **An active and interesting next 24 hours with heavy rain and strong-to-severe thunderstorms a threat…remnants of tropical storm headed our way**

11:50 AM | **An active and interesting next 24 hours with heavy rain and strong-to-severe thunderstorms a threat…remnants of tropical storm headed our way**

The remains of Tropical Storm Cindy are resulting in heavy rainfall today across portions of the Mississippi and Tennessee Valley and this area of moisture is headed to the Mid-Atlantic region. The tropical moisture associated with Tropical Depression Cindy should arrive in our area late tonight and early Saturday and some heavy rainfall is likely and there can be strong-to-severe thunderstorms mixed in. In addition to the tropical storm-related rainfall expected late tonight and early Saturday, an approaching upper-level wave of energy will destabilize this afternoon and the result will likely be scattered showers and thunderstorms into the early evening and some of these storms can be on the strong-to-severe side.  Bottom line, it looks like an interesting period from this afternoon to about mid-day on Saturday in the DC-to-Philly-to-NYC corridor. The good news is that most of the rainfall will pull out of here by tomorrow afternoon and the weekend should close out on a pretty nice note from later tomorrow through Sunday.

7:00 AM | *Heavy rain late tonight/early Saturday from the remains of tropical storm*

7:00 AM | *Heavy rain late tonight/early Saturday from the remains of tropical storm*

The remains of Tropical Storm Cindy will interact with a slow-moving frontal system and produce some heavy rainfall around here late tonight and early Saturday.  Before that tropical moisture arrives, there will be occasional rain today; primarily, focused on the morning hours, and maybe a thunderstorm later today. Most of the rainfall should move out of here  by tomorrow afternoon and the weekend will close out rather nicely late Saturday and Sunday.  One final note, NASA/Wallops will try again early tomorrow night with its sounding rocket launch that should produce colorful artificial clouds visible in DC (look southeast), Philly and NYC (look south).

7:00 AM | *Remains of tropical storm to produce heavy rainfall around here late tonight/early Saturday*

7:00 AM | *Remains of tropical storm to produce heavy rainfall around here late tonight/early Saturday*

The remains of Tropical Storm Cindy will interact with a slow-moving frontal system and produce some heavy rainfall around here late tonight and early Saturday.  Before that tropical moisture arrives, there will likely be an occasional shower and thunderstorm today and early tonight, any of which can produce some heavy rainfall. Most of the rainfall should move out of here by tomorrow afternoon and the weekend will close out rather nicely late Saturday and Sunday.  One final note, NASA/Wallops will try again early tomorrow night with its sounding rocket launch that should produce colorful artificial clouds visible in DC (look southeast), Philly and NYC (look south-to-southeast).

7:00 AM | *Remains of tropical storm to produce heavy rain around here late tonight/early Saturday*

7:00 AM | *Remains of tropical storm to produce heavy rain around here late tonight/early Saturday*

The remains of Tropical Storm Cindy will interact with a slow-moving frontal system and produce some heavy rainfall around here late tonight and early Saturday.  Before that tropical moisture arrives, there will likely be an occasional shower and possible strong-to-severe thunderstorm later today into early tonight, any of which can produce some heavy rainfall. Most of the rainfall should move out of here by tomorrow afternoon and the weekend will close out rather nicely late Saturday and Sunday.  One final note, NASA/Wallops will try again early tomorrow night with its sounding rocket launch that should produce colorful artificial clouds visible in DC (look southeast), Philly and NYC (look south-to-southeast).