Mountain View
Meteorologist Joe Cioffi
September weather for the Eastern US as a cool dome of air takes control Virginia to New York
Labor Day Sunshine & Cool Temperatures For Much of the Week Ahead,. Labor Day is here and so is a large dome of high pressure that will be building into the Northeast US. This high in one form or another will be the player all week along. Offshore we have the old frontal boundary that extends southeastward into the coastal Carolinas down to Florida. This is where much of the shower and thunderstorm activity will be this week along with the Gulf Coast from Florida to Texas. This leaves us in partly to mostly sunny conditions today in Eastern Pennsylvania to Southern New England. There will be a nice northwest breeze, very low humidity, and highs mostly in the 70s.
Severe storm risk Georgia to New York before dry Canadian air arrives in time for Labor Day
Day two sets up for another cold front and another day of thunderstorm risk. The Storm Prediction Center is indicating a marginal risk for isolated severe thunderstorms in a large geographic area that extends from Southern New England to New Jersey and Eastern Pennsylvania southward to Virginia and the Carolinas. For Eastern Pennsylvania to Southern New England you can expect some scattered showers or a thunderstorm into this afternoon. Not everyone will see shower or storm activity.
Severe weather risks elevated Kentucky to New York Saturday & Carolinas to Maine Sunday
This Labor Day holiday weekend we have severe weather risk to deal with as two weather fronts are moving eastward across the Great Lakes and Ohio Valley and they both will be passing through the Eastern US. The first today will create rising risks for severe weather from Kentucky and Ohio northeastward to West Virginia, Virginia, Maryland, Pennsylvania, New Jersey & much of Upstate NY, These storms will develop this afternoon and then move eastward tonight. Along the coastal Plain from Maine to the Carolinas, much of the day and into this evening will be dry.
Labor Day weekend loaded with severe weather risk Northeast, Mid Atlantic & Ohio Valley
This Labor Day holiday weekend brings 2 weather fronts through the Eastern US. Each one is going to produce thunderstorms and severe weather risk. Saturday we see severe weather risk over a wide area extending from Kentucky, Ohio, and West Virginia northeastward to Virginia, Maryland, Delaware, Pennsylvania, New Jersey and New York. Most of the thunderstorm activity will come late in the afternoon Saturday as well as Saturday night. Thunderstorms will be accompanied by strong gusty winds, heavy rain, and possibly hail.
Lower temperatures next 2 days, dry air splits region, severe weather risk Labor Day weekend
Areas across Eastern Pennsylvania to Southern New England, today is going to be split in two as far as humidity conditions are concerned. The cold front that came through last night is edging slowly southward. Dry air is moving into Upstate NY and New England. It is bleeding southward but slowly. Areas generally from Northeast Pennsylvania, Northern New Jersey and points north and east will see dew points drop into the 50s. However for Central and South Jersey and the rest of Pennsylvania, dew points will remains stubbornly high.
Blazing heat 100 degree plus highs, severe storms break heatwave ahead of Labor Day weekend
The Storm Prediction Center has indicated that areas from the Lower Hudson Valley in NY south to Delaware, Maryland and Northern Virginia have a marginal to slight risk for severe thunderstorms late this afternoon into tonight. This is thanks to a cold front that is dropping southeast from Eastern Canada, Upstate NY and the Great Lakes. The risk area extends west into the Ohio Valley.
Severe thunderstorm risk elevated plus excessive heat Ohio Valley to Mid Atlantic & Northeast US
Yesterday upper trough that brought thunderstorms and severe weather to Connecticut and Long Island and some scattered storms in New Jersey is now gone and we have a short break from shower and thunderstorm risk. Humidity levels are high today and we will see sunshine take high temperatures to the mid 80s to around 90 degrees in some places. Radars will be nice and quiet today and shower/thunderstorm risk is minimal. Things however change for Wednesday as we are in for a very hot and very humid day. Heat advisories and excessive heat warnings have gone up for areas from Western Long Island and NYC southwest across New Jersey and Eastern Pennsylvania. We also have another cold front that will be coming down from the northwest.
Damaging thunderstorm risks rise Northeast & Midwest US next three days as heatwave expands eastward
STATES AFFECTED MIDWEST: IOWA, MINNESOTA, WISCONSIN, MICHIGAN, NORTHERN ILLINIOS, NEBRASKA, SOUTH DAKOTA. STATES AFFECTED NORTHEAST: VIRGINIA, MARYLAND, DELWARE, PENNSYLVANIA, NEW JERSEY, EASTERN NY, CONNECTICUT, MASSACHUSETTS, RHOIDE ISLAND, VERMONT, NEW HAMSHIRE, WESTERN MAINE.
Severe storm risks & late summer heat Ohio Valley to Mid Atlantic & Northeast, Hurricane Hone Hawaii
This Sunday is going to be the last day of reasonable humidity and it is on the rise. Dew points are rising but they will probably only reach the upper 50s to around 60 so it will feeling relatively comfortable. We will also see temperatures rise today as sunshine will take highs to the mid and upper 80s. We do have a weak upper trough that will be moving through tonight and that could set off an isolated shower or thunderstorm but I think for most of you, it will be rain free overnight. It will also be warmer than it has been in past nights and most lows Monday morning will be in the 60s. Radars during the dayside Sunday should be on the quiet side.
Tropical Storm Hone, honing in on Hawaii, Severe weather risks rise Ohio to Virginia to Maine
The weekend which is the last weekend before the Labor Day holiday weekend (which is next weekend) is a reminder that summer is winding down so we should take advantage of the nice weather while we have it. This past week has been one of low humidity and cool temperatures. We will be slowly losing both of those this weekend but it will still be rather nice. Today is a day of lots of sunshine and high temperatures will reach into the lower 80s in most locations. Humidity levels are reasonable and should remain so today with dew points in the mid to upper 50s. No rain is forecast anywhere and radars are in silent mode.
Severe weather Plains over the weekend, Tropical Storm Hone heads for Hawaii
While we are seeing nice weather conditions across much of the eastern half of the US, things are different on the other side in the Plains. Hot weather continues with highs in the 90s and we have severe weather risks to contend with for the next three days. States like Colorado, Wyoming, Montana, North & South Dakota, Nebraska and Kansas will be in the line of fire.with thunderstorms, some of which will reach severe levels.
Northeast & Mid Atlantic see a nice summer weekend, thunderstorms & severe weather risks next week
We have arrived at the doorstep of the weekend and we finish off another cool start to the day Most morning lows were in the 40s and 50s while some warmer urban areas were closer to 60. We will start to see temperatures move higher over the next few days though humidity will be much slower to rise. High pressure is overhead and moving offshore today. We will see mostly sunny skies. Most high temperatures today will be in the upper 70s to around 80 degrees. There are no issues regarding showers as the radars are going to be nice and quiet today and probably through most of the weekend.
Best weather of the summer Southern New England to Mid Atlantic, humidity & storms next week
We had another cool morning across the Northeast and Middle Atlantic states as temperatures bottomed in the upper 40s and lower 50s. An upper air storm system is slowly pulling away through New England and Southeastern Canada which leaves us in a more stable atmosphere today. Scattered showers are well to the north in Northern New England and we don't not have any scattered shower issues today in Eastern Pennsylvania to Southern New England. This leaves us in a sweet spot today as satellite loops show mainly sunny skies from South Central New England southward into the Carolinas. Look for sunny skies all day long with nothing more than a few passing fair weather clouds. High temperatures this afternoon will generally be in the low to mid 70s.
Chilly mornings & self destruct sunshine make for cooler than average days Virginia to New England
it is a cool start to the day across Pennsylvania, New York, New Jersey, Maryland, Delaware, and interior Virginia. It is even cooler across New England! Morning lows were in the 40s and 50s and this includes the warmer urban areas of New York City and Philadelphia which haven't been this cool in the morning since back in June. Today we have a strong upper low dropping into Northeastern NY and that is going to create a rather cold unstable atmosphere to some extent.
Mid September weather has arrived for much of the Eastern US, below average temperatures & no rain
The Northeast & Northern Mid Atlantic states have been waiting for this air mass. Eastern Pennsylvania, Northern New Jersey, Southeastern New York, Connecticut, Long Island Maryland, Delaware and Virginia have been dealing with steamy conditions and torrential rainfalls over the last few days. In some cases like in Connecticut and Long Island, the rainfall was catastrophic with roads and homes washed away. Finally the cold front passed offshore last night and in came the "woosh" of dry cooler air. We are going to see a stretch of days of temperatures that are more like Mid September than Mid August. A deep upper trough is Eastern Canada is funneling cool dry air southward and a large surface high over the Great Lakes will take over for the next 4 days. We will see sunshine today with passing clouds. Dew points will be down in the upper 40s and lower 50s and temperatures this afternoon will be in the low to middle 70s. At least we can put the torrential rains of the weekend behind us.
Catastrophic rain overnight parts of the Northeast, more to come today with severe thunderstorms
Yesterday and overnight rainfall amounts have been nothing short of historic over parts of Southern New England, Long Island, and New Jersey, Areas in Western and Central Connecticut as well as Long Island saw rainfall rates of 2 to 4 inches of rain an hour. Think about it in terms of a months worth of rain compressed in a couple of hours. Rainfall totals have reached over a foot in these hard hit areas. Flash flooding was also common in and around New York City, the lower Hudson Valley, Northern New Jersey and Northeastern Pennsylvania. Roads were washed away, bridges swept by raging waters, search and rescues were the rule overnight. Now comes today and we have one more round of potential thunderstorms and severe weather. The Storm Prediction Center has a risk for isolated severe thunderstorms from Southern Vermont and New Hampshire southward to Eastern Pennsylvania, Southeastern NY, New Jersey, Delaware, Maryland, Eastern Virginia and North Carolina.
Severe storms, flash flooding, tornado risks rise Maryland to New York & New Jersey as front nears
Overnight we have seen areas of heavy rain and this has set the stage for some flooding risks. Flash Flood Watches cover much of Eastern Pennsylvania and New Jersey southward into Maryland. An approaching cold front is slowing down to a crawl as it waits for the atmospheric traffic jam to break down. Tropical Storm Ernesto which is north northeast of Bermuda is the reason for the stall. It is also the reason for rough surf conditions and rip currents from Maine to Virginia.
Severe storms Georgia to New Jersey with heavy rain but big payoff next week! Ernesto hits Bermuda
The weekend begins with Hurricane Ernesto which made landfall on Bermuda at 6am Saturday. This is the 4th hurricane in the last 10 years to landfall on the island. This is remarkable when you consider that Bermuda is about the size of Manhattan Island. We also have an upper trough and cold front coming in from the west. This trough and front extend from the Great Lakes to the Deep South and it will take 3 days for this system to play through the Eastern US. It will be worth the wait because what follows is a delightful air mass that will bring early September like conditions Tuesday through Friday.
Hurricane Ernesto nears Bermuda, dangerous conditions at East Coast beaches plus severe weather risk
We have arrived at the doorstep of the weekend and we are going to have one last day of sunshine and low humidity before things change. Satellite loops show an upper trough to the northeast over Atlantic Canada. That is slowing down the next upper trough and cold front that is moving across the Great Lakes and Ohio Valley. This leaves is in sunshine for much of the day and temperatures will be topping out in a range of 80 to 85. Dew points will remain reasonable in the mid to upper 50s. No rain is in the forecast for today and overnight. Humidity levels across the Northeast and Northern Mid Atlantic will begin rising as a southerly flow develops along the East Coast bringing in low level moisture. Saturday morning lows will be in the 60s for the most part. Now as far as the weekend goes, if you have to pick one day I would go with Saturday over Sunday.
Ernesto strengthens, hurricane warning Bermuda, Showers thunderstorms weekend Northeast US
We are still holding on to relatively dry and and relatively low dew points in the mid to upper 50s. That is still keeping things rather comfortable and it is certainly better than dew points in the low 70s and temperatures in the 90s. We will see sunshine today. There have been upper troughs rotating around an upper low in Eastern Canada and you can see it clearly on the satellite loop but most of the clouds with this are well to the northeast so we should be no worse than partly sunny today and at times mostly sunny. High temperatures will be in the low to middle 80s;
Meteorologist Joe Cioffi
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Meteorologist Joe Cioffi has worked in the world of television weather in New York City, New Jersey, Long Island, The Hudson Valley, and Southern New England for nearly 40 years. My weather forecasts appeared on News 12 Long Island, WPIX-TV, WNBC-TV
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