Welcome to City-Data.com Forum!
U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Weather
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
Old 07-20-2013, 11:55 AM
 
Location: Near the Coast SWCT
83,390 posts, read 74,869,666 times
Reputation: 16571

Advertisements

Current 1:45pm map showing where the current Watches are and the Meso Discussion zone from SPC. Also temps



1236 PM CDT SAT JUL 20 2013

AREAS AFFECTED...ERN PA...NJ...SERN NY...CT...RI...MA...SRN VT...SRN
NH...SRN ME

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 201736Z - 201830Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON
ACROSS MUCH OF THE URBAN CORRIDOR...AND ADJACENT AREAS OF THE
NORTHERN MID ATLANTIC REGION AND NEW ENGLAND...POSSIBLY AS EARLY AS
THE 18-20Z TIME FRAME. A FEW OF THESE ARE EXPECTED TO BECOME
SEVERE...PARTICULARLY WITH THE RISK FOR POTENTIALLY DAMAGING WIND
GUSTS...AND A WATCH LIKELY WILL BE ISSUED WITHIN THE NEXT HOUR OR
SO.

DISCUSSION...SURFACE HEATING IS MAXIMIZING WITHIN THE LEE SURFACE
TROUGH ALONG THE URBAN CORRIDOR...FROM WASHINGTON D.C. AND BALTIMORE
NORTHEASTWARD THROUGH PHILADELPHIA...NEW YORK AND BOSTON...WHERE
TEMPERATURES ARE NOW IN THE 90S. THIS IS CONTRIBUTING TO LARGE
MIXED LAYER CAPE IN THE PRESENCE OF HIGH PRECIPITABLE WATER CONTENT
NEAR 2 INCHES...WHICH INCLUDES SURFACE DEW POINTS IN THE LOWER 70S.

CONVERGENCE WITHIN THE SURFACE TROUGH CURRENTLY APPEARS WEAK...BUT
ISOLATED STORM DEVELOPMENT ALONG IT DOES NOT APPEAR OUT OF THE
QUESTION DURING THE NEXT FEW HOURS...AS SEASONABLY STRONG CYCLONIC
FLOW GRADUALLY OVERSPREADS THE REGION. A MORE PROMINENT FOCUS FOR
STORM DEVELOPMENT MAY BE AN INITIAL CONVECTIVELY GENERATED BOUNDARY
TO THE NORTH AND WEST...NOW EXTENDING FROM PORTIONS OF SOUTHEASTERN
MAINE THROUGH SOUTHERN NEW HAMPSHIRE AND VERMONT...INTO AREAS
NEAR/EAST AND SOUTH OF THE CATSKILLS AND POCONOS...AS IT CONTINUES A
SLOW SOUTHEASTWARD PROGRESSION.

GIVEN THE THERMODYNAMIC PROFILES...SHEAR BENEATH 30-40+ KT WEST
SOUTHWESTERLY 500 MB FLOW WILL BE SUPPORTIVE OF ORGANIZED SEVERE
STORM DEVELOPMENT...PERHAPS INCLUDING ISOLATED SUPERCELLS. THE RISK
FOR DAMAGING WIND GUSTS APPEAR THE MOST PROMINENT THREAT IN MOST
AREAS.
Reply With Quote Quick reply to this message

 
Old 07-20-2013, 12:56 PM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

Over $104,000 in prizes has already been given out to active posters on our forum and additional contests are planned
 
Location: Western Massachusetts
46,009 posts, read 53,301,418 times
Reputation: 15179
dew point dropped to 69°F from 75°F. Thought it felt more tolerable.
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 04:18 PM
 
Location: Near the Coast SWCT
83,390 posts, read 74,869,666 times
Reputation: 16571
Lightning Fires reports from earlier.
Index of /pub/SL.us008001/DF.c5/DC.textf/DS.lsrnw

Reply With Quote Quick reply to this message
 
Old 07-20-2013, 04:31 PM
 
6,909 posts, read 7,647,039 times
Reputation: 2595
Quote:
Originally Posted by nei View Post
dew point dropped to 69°F from 75°F. Thought it felt more tolerable.
Dewpoint here is 5.5c/42f, too dry for me. But 69f is almost too much too.
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 04:33 PM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

Over $104,000 in prizes has already been given out to active posters on our forum and additional contests are planned
 
Location: Western Massachusetts
46,009 posts, read 53,301,418 times
Reputation: 15179
Quote:
Originally Posted by JetsNHL View Post
Dewpoint here is 5.5c/42f, too dry for me. But 69f is almost too much too.
69°F is lower than what we've had for most of the last month. Still too much but an improvement over drier weather.
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 06:13 PM
 
29,445 posts, read 19,535,208 times
Reputation: 4509
So far this year, most of the US is running below average



Models on Europa: CFSV2 front 5 days euro then day 10-20,20-30


Last edited by chicagogeorge; 07-20-2013 at 07:34 PM..
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 06:16 PM
 
6,909 posts, read 7,647,039 times
Reputation: 2595
Today our high was 19c, which is 7 degrees below normal 26c. At least it was sunny.
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 06:30 PM
 
Location: Niagara Falls, ON
1,231 posts, read 1,384,118 times
Reputation: 1901
Storm dropped 102mm/4inch here last night, lots of flooding and power outages.

News - Ontario Slammed with Severe Weather




Humid Subtropical


Humid Subtropical

(I'll post more videos tomorrow)
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 06:31 PM
 
6,909 posts, read 7,647,039 times
Reputation: 2595
Impressive amount of rain!
Reply With Quote Quick reply to this message
 
Old 07-20-2013, 07:53 PM
 
29,445 posts, read 19,535,208 times
Reputation: 4509
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:


Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Weather

All times are GMT -6.

© 2005-2024, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Contact Us - Archive 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 - Top