Storm of June 24: Instantaneous 27F Drop - SailNet Community
 
LinkBack Thread Tools
post #1 of 5 Old 06-26-2010 Thread Starter
Senior Member
 
TakeFive's Avatar
 
Join Date: Oct 2009
Location: Swarthmore, PA
Posts: 3,288
Thanks: 9
Thanked 90 Times in 80 Posts
Rep Power: 7
 
Storm of June 24: Instantaneous 27F Drop

This is not earth shattering news, but might be interesting to some.

In the Philly area wehad an unusually strong storm come through last Thursday. I don't ever recall seeing storm clouds that were that black - it was like nighttime at 3:30 pm. In my town about a third of the houses lost power for over 24 hours. I went down to the boat to check on it, and the radio reported that Philly airport (directly adjacent to the marina) had 75 mph winds and hail.

I was curious to see how the barometer varied during the storm so I checked the NOAA site. Much more interesting was the temperature change, which I finally decided to capture today before it scrolled off their plot. Note the abrupt change from 98F to 71F:


I clicked around some of the other regions and nobody outside the Philly area had a temperature change that came close to this one.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)

Last edited by TakeFive; 06-26-2010 at 10:59 PM.
TakeFive is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 5 Old 06-26-2010
On the hard
 
CharlieCobra's Avatar
 
Join Date: May 2006
Location: Bellingham, WA.
Posts: 3,502
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 11
   
I've seen that happen with cold front blowing through. It's really something when you're on the water...

Baggett and Sons Marine Restoration
The Landing at Colony Wharf
Bellingham, WA.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CharlieCobra is offline  
Quote Quick Reply Share with Facebook
post #3 of 5 Old 06-26-2010
Senior Member
 
Allanbc's Avatar
 
Join Date: Apr 2007
Posts: 525
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 10
 
I was kayaking on a Central Texas river when a strong cold front blew through. It passed really quickly and dropped the temperature quite a bit. After the front passed, it got really still and fog formed on the river. The top of the fog was right about the top of my head and very thick. We continued on through the fog and every now and then you had to rise up in the kayak and look over the fog. It was pretty strange. Fortunately, the wind started again before long and blew the fog away.

"When in command, command." -- Admiral Nimitz

Difference between a power boater and a sailor out on the water: A power boater is going some place special, a sailor is already there.

s/v Zotz 1981 Pearson 365 Ketch Hull #375
Allanbc is offline  
Quote Quick Reply Share with Facebook
post #4 of 5 Old 06-26-2010 Thread Starter
Senior Member
 
TakeFive's Avatar
 
Join Date: Oct 2009
Location: Swarthmore, PA
Posts: 3,288
Thanks: 9
Thanked 90 Times in 80 Posts
Rep Power: 7
 
Yes, I remember "blue northers" from the year that we lived in Plano. Especially scary was in winter when the roads would be wet and temps would hover around 33F, and the front would come through and drop things suddenly below freezing. Black ice everywhere!

One interesting thing about this storm is it was not a cold front. You can see that after the sudden drop, the temp rose back to the mid-80s and then resumed its normal descent as the sun set.

Note also from this pic that the temp at 9 am was already 84F - too hot to be sailing!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)
TakeFive is offline  
Quote Quick Reply Share with Facebook
post #5 of 5 Old 06-26-2010
Aspiring to be a Mexican
 
sww914's Avatar
 
Join Date: Oct 2008
Location: La Cruz de Hunacaxtle, Mexico
Posts: 542
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
Montana is good for that. Their record is an 84 degree change in 12 hours. It went from 63 at noon to 21 below at midnight. It's really interesting.
sww914 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Using Storm Sails Brian Hancock Gear and Maintenance Articles 0 02-16-2004 07:00 PM
After the Storm John Rousmaniere Seamanship Articles 0 03-14-2002 07:00 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome