July 22, 2011: A day of records

By: Dr. Jeff Masters , 4:56 PM GMT on July 23, 2011

Share this Blog
8
+

The crest of the extreme heat wave of July 2011 has passed, although temperatures are still going to be dangerously hot in the Mid-Atlantic and Northeast today. New York City (Central Park) will reach 100° again, as well as Philadelphia and possibly Washington Dulles. Heat index values could surpass the 110° mark today, and excessive heat warnings are in effect from New York City to South Carolina, as well as a large portion of the Central United States. Yesterday, the heat index soared past 120° in Wilmington, DE (124), Easton, MD (125), Annapolis, MD (120) and Atlantic City, NJ (122), among others. A more complete list of Friday's heat index extremes can be found here.

Numerous records fell yesterday as far north as Maine. There were plenty of daily records to talk about, but here are some of the noteworthy all-time record high temperatures:

Newark, NJ: 108° (old record was 105° set in 2001)
Washington Dulles, DC: 105° (old record was 104° on multiple dates)
Bridgeport, CT: 103° (ties the old record set in 1957)
Hartford, CT: 103° (old record was 102° set on multiple dates)
New Haven, CT: 102° (old record was 101° set in 1926)

Baltimore hit 106°, one degree shy of their all-time high record which was set in 1936. New York City (Central Park) set a daily record of 104°, which was 2 degrees shy of their 106° all-time high record, which was also set in 1936. More on the record-setting year of 1936 in yesterday's blog from Jeff. Two notable all-time record high minimums were also set yesterday: 84° in New York (Central Park) and 86° in Newark, NJ.

Our weather historian, Christopher C. Burt, keeps track of 303 select stations in the U.S. with long standing record histories. So far this summer, seven of these have broken or tied their all-time maximum temperature records. Some of these were long-standing:

• Amarillo, TX 111° (1892)
• Dodge City, KS 110° (1874 tied)
• Newark, NJ 108° (1893)
• D.C. Dulles 105° (1962)
• Tallahassee, Fl 105° (1883)
• Hartford, CT 103° (1885)
• New Haven, CT 102° (1780)

The last summer to have more all-time high records than this year was 2002, which set 9. Christopher C. Burt estimates that yesterday probably rates in the top five hottest days on record for the mid-Atlantic states (Washington D.C. to Boston).

Invest 90L


Satellite imagery of NHC Invest 90L this morning.

Invest 90L is looking ragged on satellite as it makes its way across the Caribbean islands. While this wave looked ripe for eventual development earlier this week, it has really taken a turn for the worse as it moved across the Main Development Region of the North Atlantic. Today, low level circulation is could favorably be described as less than moderate, and almost nonexistent at higher levels. Today, not one of the global models I've looked at (ECMWF, NOGAPS, CMC, UKMET, or GFS) develop 90L, but they are coming into better agreement that the wave's track will be across the Caribbean islands and into the Gulf of Mexico, rather than up the east coast of Florida. This could be one of the reasons the models are not suggesting development—too much land interaction, not enough time over open warm waters. However, its hard to say that this wave will not show some signs of improvement when it reaches the Gulf. Water will be toasty, moisture will be relatively high, and wind shear will remain incredibly low. Today the National Hurricane Center is giving this wave a 20% chance of development over the next 48 hours. My forecast has been the same for the past two days, right around 20% chance of development over the lifetime of the wave.

Thanks to our weather historian Christopher C. Burt for some useful information on heat waves and yesterday's records. I'll have another blog on Monday.

Angela

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 1911 - 1861

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49Blog Index

Quoting BahaHurican:
Quoting CRS: we got ONE squall that seemed "tropical driving rain" the rest of the day we get periodic episodes of higher wind, but dry.
Action: Quote | Ignore User


Well, I hope we do a bit better... lol

On the JFV conversation, I'm suggesting if u have a problem with a blogger, use the post related buttons. I'm about ready to start [-] everybody who keeps talking about JFV again. It's a really unnecessary distraction...
Member Since: Posts: Comments:
Quoting TomTaylor:
That and low level speed divergence created by accelerating winds over the Caribbean. The broad, large size and proximity to land couldn't have helped either.


Um, isn't that what he's saying? >_>

The fast forward motion disallowed for low-level convergence, leading exactly to the process you described: low-level divergence.
Member Since: Posts: Comments:
1909. MrCowan
Quoting KEEPEROFTHEGATE:




Most recently updated, keeper?
Member Since: Posts: Comments:
Quoting alfabob:
Difficult for a system moving with 25-35kt trade winds to gain west winds. 90L has been impressive in terms of the moisture field it has created, conditions were favorable in almost every aspect except those winds. Maybe it has a surprise in store, being weaker has allowed it to move more west.
That and low level speed divergence created by accelerating winds over the Caribbean. The broad, large size and proximity to land couldn't have helped either.
Member Since: Posts: Comments:
1907. KEEPEROFTHEGATE (Mod)
Member Since: Posts: Comments:
Quoting alfabob:

As long as the southern portion of those trade-winds disappear, it has a good chance of developing. They began to decrease at a few points when development started picking up, but there have been some surges afterwards which collapsed any circulation. Maybe the third attempt will work out after all.


Third times the charm, as the say... ;)
Member Since: Posts: Comments:
1905. alfabob
Member Since: July 5, 2010 Posts: 0 Comments: 1347
1904. nigel20
Quoting caneswatch:


Boy, that ridge is looking ugly for us.
Yeah
Member Since: Posts: Comments:
Looks like we are in for some rain here in Cayman from 90L tomorrow. Have a good evening all...
Member Since: Posts: Comments:
1902. alfabob
Quoting KoritheMan:


The swift lower tropospheric flow should abate as the system enters the northwest Caribbean and Gulf of Mexico. Whether or not that has any implications on development, I dunno.

As long as the southern portion of those trade-winds disappear, it has a good chance of developing. They began to decrease at a few points when development started picking up, but there have been some surges afterwards which collapsed any circulation. Maybe the third attempt will work out after all.
Member Since: July 5, 2010 Posts: 0 Comments: 1347
Quoting nigel20:
Look at the high


Boy, that ridge is looking ugly for us.
Member Since: Posts: Comments:
Welcome, RainyEyes (1868-9); Cape Coral here also.... Love these rains we're getting, but everything about this so-called rainy season has been strange. I've only lived in Florida for 2 years, but it seems most of what I've known down here has been drought. Really hoping Florida will settle into a more normal pattern one of these days.

Here's hoping we DO escape serious mischief from the Tropics! But I am watching the wave entering Cuba, hoping it spurs a day or two of vigorous showers for us later this week.

Take care!
Member Since: Posts: Comments:
Quoting nigel20:


It will be in the GOM 3 days ahead... or 84 hrs...
Member Since: Posts: Comments:
With a little luck, talented players, and smart coaching we can survive a low scoring game 7-3 and arrive at the goal line Dec 1 unscathed and healthy.
Member Since: Posts: Comments:
1897. nigel20
Member Since: Posts: Comments:
1896. nigel20
Look at the high
Member Since: Posts: Comments:
Quoting alfabob:
Difficult for a system moving with 25-35kt trade winds to gain west winds. 90L has been impressive in terms of the moisture field it has created, conditions were favorable in almost every aspect except those winds. Maybe it has a surprise in store, being weaker has allowed it to move more west.


The swift lower tropospheric flow should abate as the system enters the northwest Caribbean and Gulf of Mexico. Whether or not that has any implications on development, I dunno.
Member Since: Posts: Comments:
Clear skies

Member Since: Posts: Comments:
1893. alfabob
Difficult for a system moving with 25-35kt trade winds to gain west winds. 90L has been impressive in terms of the moisture field it has created, conditions were favorable in almost every aspect except those winds. Maybe it has a surprise in store, being weaker has allowed it to move more west.
Member Since: July 5, 2010 Posts: 0 Comments: 1347
Quoting KEEPEROFTHEGATE:
may not see anything else till 20th of august then get 4 or 5 with 5 or 6 in sept 2 in october 1 in nov for a total of 15 to 17 at the end not a one within 300 miles of miami

hurry up and wait

hahahahahahahahaaha
you sure one won't park itself over a certain dorm at FIU. You know, blow just one window and really mess one "student's" day up real bad ??
Member Since: Posts: Comments:
Quoting KoritheMan:


I'm actually getting quite bored of forecasting this pathetic invest. I detest systems that tease, as well as weak systems in general (again people, DON'T infer too much from that).


Too late... :p
Member Since: Posts: Comments:
Night all. Hope tomorrow brings rain to those that need it.
Member Since: Posts: Comments:
Quoting JLPR2:


There's not much to talk about.

All we have is 90L and it isn't trying anything at the moment.


I'm actually getting quite bored of forecasting this pathetic invest. I detest systems that tease, as well as weak systems in general (again people, DON'T infer too much from that).
Member Since: Posts: Comments:
Quoting KEEPEROFTHEGATE:
naw the guy with the hammer won't be here till the am pacific time but iam sure when he gets in it will be applied


Most awesome. I can't wait for the next appearance. I wonder who his next target is ;)
Member Since: Posts: Comments:
1887. KEEPEROFTHEGATE (Mod)
Quoting caneswatch:


Is it time again to break out the "picture?"
naw the guy with the hammer won't be here till the am pacific time but iam sure when he gets in it will be applied
Member Since: Posts: Comments:
Quoting KEEPEROFTHEGATE:
yes


Is it time again to break out the "picture?"
Member Since: Posts: Comments:
1885. alfabob
Moving west still
Member Since: July 5, 2010 Posts: 0 Comments: 1347
1884. pottery
Quoting FrankZapper:
It looks like the tropics will be entering a relatively quiet period for the next 10 days or so and hopefully longer. The 90L wave has never showed any inclination to develop and I believe no further sleep should be lost over it.

It's been relatively quiet for months....
Member Since: Posts: Comments:
1883. JLPR2
Quoting KoritheMan:
While the blog looks to be quite dead atm, I just finished a blog entry on 90L. Read if you want my thoughts.


There's not much to talk about.

All we have is 90L and it isn't trying anything at the moment.
Member Since: Posts: Comments:
1882. pottery
An inch and a half of rain here today (post 1853 shows it, thanks Sunline!)
After several days of not much rain it came down with a Vengeance today.
Nice sunset this evening over Venezuela, and a clear evening. Cool at last!
Member Since: Posts: Comments:
1881. KEEPEROFTHEGATE (Mod)
yes
Member Since: Posts: Comments:
Keep, if you're still here.....
Member Since: Posts: Comments:
1878. KEEPEROFTHEGATE (Mod)
Quoting MrCowan:


Heaven forbid, let's hope not.
may not see anything else till 20th of august then get 4 or 5 with 5 or 6 in sept 2 in october 1 in nov for a total of 15 to 17 at the end not a one within 300 miles of miami

hurry up and wait

hahahahahahahahaaha
Member Since: Posts: Comments:
http://synoptic.envsci.rutgers.edu/site/imgs/ir2_ co nus_anim.gif
Member Since: Posts: Comments:
1875. jonelu
Quoting KEEPEROFTHEGATE:
actually thats the avalon and Bonavista Peninsula of newfoundland


My bad...I see St John's is right in the storm. We need a blogger from there.
Member Since: Posts: Comments:
Quoting FrankZapper:
It looks like the tropics will be entering a relatively quiet period for the next 10 days or so and hopefully longer. The 90L wave has never showed any inclination to develop and I believe no further sleep should be lost over it.


I admit, I would rather track something that actually has potential. Don't take that the wrong way... ;)
Member Since: Posts: Comments:
I suppose a full time welcome is in order :) I like it here...and yes it has been weird...hail, winds, rain and lightning now!
Member Since: Posts: Comments:
It looks like the tropics will be entering a relatively quiet period for the next 10 days or so and hopefully longer. The 90L wave has never showed any inclination to develop and I believe no further sleep should be lost over it.
Member Since: Posts: Comments:
1871. KEEPEROFTHEGATE (Mod)
Quoting jonelu:


There is more vorticity in the storm off the coast of Nova Scotia than Dora or any wave in the Atlantic.
actually thats the avalon and Bonavista Peninsula of newfoundland
Member Since: Posts: Comments:
Quoting RainyEyes:
Cape Coral, Florida
Us too when we get there. It's been a weird year for sure. Hopefully soon to be more or less full timers.
Member Since: Posts: Comments:
Cape Coral, Florida
Member Since: Posts: Comments:
Quoting RainyEyes:
Well, I am certainly not a climatologist, but I will say that living in Florida for quite a while I know the "normal" rainy season pattern. It has become quite strang lately. Storms after dark, violent winds and heavy, heavy down pours. It makes me wonder if something is up that we can't see...some type of pattern...

Sorry for being such a "newb" ... Love the weather, just little time to study it.
Where you at?
Member Since: Posts: Comments:
Well, I am certainly not a climatologist, but I will say that living in Florida for quite a while I know the "normal" rainy season pattern. It has become quite strang lately. Storms after dark, violent winds and heavy, heavy down pours. It makes me wonder if something is up that we can't see...some type of pattern...

Sorry for being such a "newb" ... Love the weather, just little time to study it.
Member Since: Posts: Comments:
Quoting jonelu:


There is more vorticity in the storm off the coast of Nova Scotia than Dora or any wave in the Atlantic.


Blame Canada.
Member Since: Posts: Comments:
1865. JLPR2
Quoting PcolaDan:


WHAT???? What are you saying?!?!?!?!
:(


:(
LOL!
Member Since: Posts: Comments:
Quoting KEEPEROFTHEGATE:
finally peace and quiet
you got that right.
Member Since: Posts: Comments:
1863. jonelu
Quoting TropicalAnalystwx13:




There is more vorticity in the storm off the coast of Nova Scotia than Dora or any wave in the Atlantic.
Member Since: Posts: Comments:
Quoting BahaHurican:
For some reason this blog discussion is making me think of Fernando Valenzuela...


?? Looking to the heavens while throwing a pitch?
Member Since: August 22, 2008 Posts: 12 Comments: 6010
1861. alfabob
Short term, all that it really needs to do is clear the coast of Cuba (which it seems capable of on it's current path), then it has 30-31C for the majority of the way. Would buy enough time to start spinning, probably some land interaction to weaken it slightly; then back into 30-31C waters.
Member Since: July 5, 2010 Posts: 0 Comments: 1347

Viewing: 1911 - 1861

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.