bluewave

Thanks. It looks like the weather systems will start moving again as the block over SE Canada finally weakens some.

Very happy to see the sunniest start to the day in a while.

@NWSMoreheadCity has measured 19.40" for a storm total rainfall as of 4 PM this afternoon. Daily total of 10.59" so far... 1:16 PM - 14 Sep 2018

NOAA’s tide gauge in Beaufort, NC saw a record water level this morning from Hurricane Florence at 3.74 ft above high tide. This breaks the record set in 1955 during Hurricane Ione. pic.twitter.com/FsueyX1omh 9:45 AM - 14 Sep 2018

Percentage of cloud cover for the first half of September ahead of February. Hopefully, the second half brings more sun and we fall behind the full month of February percentage. https://mesonet.agron.iastate.edu/plotting/auto/?_wait=no&q=45&network=NY_ASOS&zstation=LGA&hour=12&year=2018&month=9&dpi=100&_fmt=png

Florence had the 3rd lowest barometric pressure ever recorded for a landfalling U.S. category 1 hurricane south of 40N. #1....942 mb Sandy........... 2012 #2....952 mb Irene............ 2011 #3....958 mb Florence....... 2018 #4....963 mb Lili................. 2003 #5....966 mb Isaac..............2011 http://www.aoml.noaa.gov/hrd/tcfaq/E23.html

The first time that a named storm in the Atlantic made landfall in the U.S.taking this track. Updating yesterday's tidbit... as of Friday morning's advisory, 79 named storms have passed within 200 nautical miles of #Florence's position since 1851, and not one has ever come close to the U.S. coast. pic.twitter.com/IZurMUWhXh 4:55 AM - 7 Sep 2018

Warm minimums continue to drive the departures with all the clouds and high humidity. LGA 9/13...+4....MAX....0...MIN...+7 .......9/12...+5....MAX....0...MIN...+9

Flood level to 8.51 feet now. https://nwis.waterdata.usgs.gov/nwis/uv?site_no=02084472 https://stn.wim.usgs.gov/FEV/

The surge on western Pamlico Sound is approaching the major flooding level. It forced the evacuation of a local TV station. https://water.weather.gov/ahps2/index.php?wfo=mhx https://water.weather.gov/ahps2/hydrograph.php?wfo=mhx&gage=orln7 WRAL meteorologist Kat Campbell discusses the evacuation of her old station, WCTI in New Bern, as Hurricane Florence floodwaters surround the building. https://www.wral.com/weather/hurricanes/video/17841687/ Live coverage https://www.wral.com/weather/video/17840398/

Warm minimums really driving the temperature departures this month. Pretty lopsided results so far with all the clouds and high humidity. LGA AVG....+3.1 MIN....+4.8 MAX....+1.4 ISP AVG....+3.8 MIN....+5.8 MAX....+1.9 EWR AVG....+2.9 MIN....+4.8 MAX....+0.9 ALB AVG....+4.6 MIN....+6.9 MAX....+2.3

Decent surfing conditions today along the South Shore. A 5-6 foot hurricane swell with light winds. https://nysea.com/live-cam/

Closest 90+ heat index was in SNJ with more sun today. Atlantic City PTSUNNY 83 77 82 E9 30.19 HX 92

Another day with Miami dew points at JFK. It feels really warm for a cloudy day especially during the brief breaks of sun. Kennedy Intl CLOUDY 77 76 96 VRB5 30.24S

While we lost the 90 degree highs, the 70 degree + minimums continue. Long Island keeps adding to the record breaking number of 70 degree or higher minimums. Notice how many recent years are near the top of the list. Highest number of 70 degree or higher minimums for ISP: #1....39 days....2018 #2....36 days....2010....1980 #3....35 days....2016 #4....34 days....2013....1999 #5....32 days.....2015.....1988

I just found a great presentation on the 1821 hurricane. https://ams.confex.com/ams/95Annual/webprogram/Paper257982.html Tuesday, 6 January 2015: 2:30 PM 128AB (Phoenix Convention Center - West and North Buildings) Megan E. Linkin, Swiss Re America Holding Corporation, Armonk, NY Recorded Presentation Hurricane Sandy, with its unique track, 1,000 mile wide wind field and low central pressure, pushed record breaking storm surge into the New York and New Jersey coasts, destroying businesses, homes and lives in a short 24 hour period. But for all the devastation and damage that Hurricane Sandy brought, its intensity at landfall, measured by 1-minute maximum sustained winds, was equivalent to a minimal Category 1 hurricane. Other events in recent years (Irene, Isabel, Gloria, Bob), while significant, weakened prior to landfall, coming onshore as either Category 1 or Category 2 hurricanes, and not the major hurricanes originally anticipated and feared. History, however, shows us that we may not always be as fortunate. The 1821 hurricane, commonly referred to as the Norfolk � Long Island hurricane, roared through the Mid-Atlantic and Northeastern United States in early September, passing over or near major cities and tourism regions such as the Outer Banks, Norfolk, Cape May and New York City. Coastal communities in North Carolina were washed away, ships in Norfolk, VA were pushed ashore and the Delaware Bay flooded Cape May, NJ. On eastern Long Island, the aftermath was described as, "the most awful and desolating ever experienced." The hurricane was a devastating event for the expanse of Northeast United States, with communities, farms and churches laid in ruins from North Carolina to New Hampshire. The hurricane is notable not only for its strength, but its contribution to science; it is the storm that led to the discovery that in the Northern Hemisphere, these weather systems rotate in a counterclockwise direction. With all existing documentation around the 1821 hurricane referring to a catastrophic, devastating event, and with today's models we can reconstruct a track for this hurricane to understand how it moved up coast, along with its wind field and storm surge field to determine what the loss potential is if the 1821 hurricane recurred today. Using Swiss Re's proprietary tropical cyclone model, a deterministic wind field and storm surge analogs are developed for the 1821 hurricane. The wind footprint calculated for the 1821 hurricane results in a large area of the Eastern Seaboard being affected by powerful winds and wind gusts; in parts of coastal North Carolina, the wind gusts are in excess of 150 mph, with wind gusts up to 130 mph reaching as far north as Connecticut. Storm surge values for the analog hurricanes range from 11 � 13 feet at The Battery, and up to 25 feet in Atlantic City, NJ. With trillions of dollars of residential, commercial and automotive exposure currently in the path of such a storm, the loss potential of the 1821 Norfolk-Long Island hurricane exceeds economic losses from other notable East Coast storms, including the 1938 Long Island Express and Hurricane Sandy. Physical economic losses are calculated to be in the range of USD 100 billion; actual economic losses, which include the intangibles, such as lost tax revenue and changes in asset values, are closer to USD 150 billion. It is imperative that we, as a nation and a society, look into the past to plan for the future, especially peering through the veil of climate change. Hurricanes Irene and Sandy served as harsh reminders that the Eastern Seaboard, particularly the Northeast US, is not immune to hurricane strikes. A recurrence of the 1821 Norfolk Long Island hurricane would be a paradigm shifter, severely and negatively impacting the economy and altering the culture of the oldest part of the United States going forward. Comprehending the potential consequences of historical storms today will help both improve our understanding of the "worst case event," and motivate those in coastal areas to take the necessary steps to prepare for all storms which are possible, even those beyond our current generations' memories.

Miami dew points return to Montauk. Montauk N/A 82 75 MIAMI PTSUNNY 89 76

This May or June through September extended summer pattern has become a common theme during the 2010's. Warmest 5/1 to 9/10 LGA #1...75.9....2010 #2...75.4....2018 #3...75.2....2016 #4...74.6....2015...2012 #5...74.1....2007 ISP #1....71.6...2010 #2....71.1...1999 #3....71.0...2015...2011 #4....70.9...2018 #5....70.8...2016...2012

You knew that someone would venture into the early Sandy washing machine before the main event in the evening.

Also had some tree damage here. A strong gust took down a large tree limb. Plenty of leaves and sycamore bark in the streets.

Coastal flooding just made it to the moderate level here along the Great South Bay. The lowest streets have some flooding.

Sandy and Gloria actually had a similar surge around 8 feet near the outer coast of Long Beach. But Gloria came in near low tide so the actual tide level was about 3-4 feet lower on the beach side. Sandy had a record wide wind field. Combined with the historic track, this ensured that the highest surge would coincide with high tide. I also believe the two high tide cycles involved allowed higher water levels to pile up in the back bays with Sandy.

I think it came down to the wind direction. The ridge axis expanded so far to the north, that the flow was more from the SE than normal for such a warm summer. That is why JFK had such high humidity and didn't finish in the top ten warmest of summers. Other stations where the SE flow didn't impact the summer heat potential as much finished in the top 10 warmest. It's why there was so much variance between the stations. JJA 2018 summer temperature rankings: LGA....#4 warmest on record JFK....#15 ISP.....#5 BDR....#3 EWR...#13 HPN.....#8

Miami recently set their record back in 2015 and early 2016 at 287 days.

The at or above 60 degree streak just ended at 95 days for LGA. This was the 5th highest number of days on record. #1....117 days...2005 #2....104 days...2008 #3....102 days...2016....2010 #4....98 days.....2015 #5....95 days.....2018....1993