Welcome New Members! We want to hear from you. Register, stop lurking and start posting!

US Weather (General)

All international weather archives can be found here.
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

US Weather (General)

Post by Blackee »

A broad area of low pressure along the Gulf and Florida is directing rain along the Panhandle and around Tampa.
This low pressure system looks to linger for a day or so before travelling north along the Atlantic affecting South Carolina and Georgia.
Mansfield 370m and Elwood
User avatar
Karl Lijnders
Tornadic Supercell
Reactions:
Posts: 5771
Joined: Sun Nov 22, 2009 11:17 pm
Location: Knoxfield, Victoria

Re: US Weather (General)

Post by Karl Lijnders »

Yeah areas of rain and thunderstorms starting to build across the region. Some heavier falls along the Florida Keys is likely with more scattered thunderstorms there. Rain more generalised back through the Carolinas for the next 24 hours with falls closer to 40mm possible
Former Owner - The Australian Weather Forum. Email me anytime - weatherman1000@hotmail.com
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

That system has scooted through pretty quick and is now halfway up the east coast.
Low pressure sitting over Nevada may cause the odd non-severe thunderstorm today, whilst the Midwest through to Ohio in the North Central will remain fine.

For Friday (US), the low pressure moves east into the Rockies, which will cause rain areas. The High pressure system will move slowly from the midwest and will start to clear the rain from the East coast. Florida, Georgia and Gulf Coast looks to have a fine day in store.

The weekend looks unstable for the Mid West as the low pressure system and associated front sweeps across. One to watch in the next day.
Mansfield 370m and Elwood
T
Twister
Cumulonumbus Calvas
Reactions:
Posts: 914
Joined: Sun Nov 29, 2009 10:47 pm
Location: Brisbane Qld

Re: US Weather (General)

Post by Twister »

First big storm system of the season this easter weekend looking great for some big thunderstorms through the South plains
Now Living in Wet QLD
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

Hurricane season isn't going to start too early this year.
Still fairly benign conditions across the Caribbean Sea and Gulf Coast.
Some moisture about, but that is fairly normal for this time of year.
Mansfield 370m and Elwood
n
norfolk
Supercell
Reactions:
Posts: 2024
Joined: Thu Nov 26, 2009 7:03 pm
Location: Caroline Springs, western Melbourne
Contact:

Re: US Weather (General)

Post by norfolk »

What has tornado season been like? I heard the because of the really cold conditions this past winter, tornados will effect more midwest, eastern states rather than central plains?
K
Ken
Cumulonumbus Calvas
Reactions:
Posts: 594
Joined: Wed Mar 17, 2010 11:07 pm
Location: Brisbane

Re: US Weather (General)

Post by Ken »

Doppler's detected a possible tornado near west Memphis, Tenessee headed on a path through the northern parts of Memphis (which is now covered by a tornado warning) as I type. This is part of the 2nd major severe storm/tornado outbreak to affect the US within a week. There's a potent 90 to 100kt midlevel jet over the region that's really helping to crank things along at the moment.

Live coverage at:
http://www.wreg.com/news/livestreaming/
User avatar
Meso
Supercell
Reactions:
Posts: 1415
Joined: Fri Feb 19, 2010 9:00 pm
Location: Springfield, QLD

Re: US Weather (General)

Post by Meso »

Check out this vid from the recent hailstorm in Oklahoma City...

Make sure you keep watching till about a minute in when the intensity really picks up!

User avatar
Onetahuti
Supercell
Reactions:
Posts: 2786
Joined: Thu Mar 25, 2010 9:37 pm
Location: Dandenong Nth.

Re: US Weather (General)

Post by Onetahuti »

NOAA Expects Busy Atlantic Hurricane Season

An “active to extremely active” hurricane season is expected for the Atlantic Basin this year according to the seasonal outlook issued today by NOAA’s Climate Prediction Center – a division of the National Weather Service. As with every hurricane season, this outlook underscores the importance of having a hurricane preparedness plan in place.

Across the entire Atlantic Basin for the six-month season, which begins June 1, NOAA is projecting a 70 percent probability of the following ranges:

* 14 to 23 Named Storms (top winds of 39 mph or higher), including:
* 8 to 14 Hurricanes (top winds of 74 mph or higher), of which:
* 3 to 7 could be Major Hurricanes (Category 3, 4 or 5; winds of at least 111 mph)

more detail ... http://www.noaanews.noaa.gov/stories201 ... tlook.html
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

Lets hope that the oil spill in the Gulf in controlled before some serious weather causes even more chaos!

Looking forward to the Hurricane Season.
Mansfield 370m and Elwood
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

Link to oil slick in Gulf of Mexico with weather overlay.

http://www.intellicast.com/National/GulfOilSpill.aspx
Mansfield 370m and Elwood
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

BP working on hurricane-resistant plan to clean up Gulf of Mexico oil spill
Taken from HeraldSun online - 8 June 2010

BP is looking at hurricane-resistant methods for siphoning up oil from a ruptured Gulf of Mexico pipeline, in the event that a major storm strikes before a relief well can be built.

"We're looking at different options... that would allow us to stay longer and reduce down time" should a major storm strike, said Kent Wells, BP's senior vice president, at a press briefing today.

He said a more durable "direct connect" would be put in place by mid-June to increase the amount of oil and gas that can be captured from the well.

A "long-term containment option" would be put in place at the end of the month, which "allows for a much easier disconnect and reconnect" in the event of a hurricane, he said.

Government weather scientists have predicted that up to seven major hurricanes, with winds of at least 111 miles per hour, could slam into the United States this year, potentially hampering efforts to siphon off spewing oil and clean up the Gulf of Mexico oil spill.

Forecasters from Colorado State University, which gave slightly different storm figures, blamed warmer-than-normal tropical Atlantic sea surface temperatures and cooling tropical Pacific conditions.

A device called the lower marine riser package (LMRP) was installed last week to collect and transport oil and gas flowing from the well into the Discoverer Enterprise drillship on the surface.

The containment effort involves a cap placed over a sawed-off pipe, which gathers the oil, allowing it to be siphoned up to a container ship.

It was the first manoeuvre to demonstrate some success at curbing the amount of oil spewing into the Gulf, but in the event of a major storm would likely have to be detached temporarily from the ship.

Wells said the company was looking at other refinements that could help it gather even more spewing oil.

"We've got some real expertise coming from a couple of different government scientists that are helping us design a valve mechanism there that gives us much better containment than we've got with the LMRP," Wells said, adding that an improved method could be in place by mid-June.

Wells told reporters that BP so far has collected a total of 28,000 barrels of oil from the ruptured Gulf of Mexico well.

The US government has yet to determine the exact amount of oil being captured by BP, but it is believed to be a fraction of the oil spewing into the Gulf.

Meanwhile, two relief wells, started May 2 and May 16, are expected to take about three months to complete from the start of drilling.
Mansfield 370m and Elwood
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

Quite a large area of instability throughout the US.

Troughs along the West coast, the Mid West, up thru the Great Lakes and into the North East.
An active band of storms thru Iowa, New England, Ohio & New York State.
Things also getting active down around Louisiana.
Mansfield 370m and Elwood
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

2 hurricanes currently off the Pacific at the moment.

"Celia" is currently 926mb which is quite beefy, but is not forecast to threaten land.

"Darby" is a weaker system at 967mb but is forecast to maintain current strength and possibly deepen over the next 48-72hrs. No threat to land yet.
Mansfield 370m and Elwood
I
I_Love_Storms
Supercell
Reactions:
Posts: 2812
Joined: Wed Dec 02, 2009 2:01 pm
Location: Hawthorn

Re: US Weather (General)

Post by I_Love_Storms »

The moment lightning struck twice in the same place at the same time: Stunning images as storm breaks over Chicago.

Check this image out:

Image

There are also more on the linked page: http://www.dailymail.co.uk/news/worldne ... icago.html
T
Twister
Cumulonumbus Calvas
Reactions:
Posts: 914
Joined: Sun Nov 29, 2009 10:47 pm
Location: Brisbane Qld

Re: US Weather (General)

Post by Twister »

Heading to Miami Tomorrow for TC bonnie very extised 100-200mm of rain and 90km/h winds expected hopefully gets bit stronger looking forward to it
Now Living in Wet QLD
n
norfolk
Supercell
Reactions:
Posts: 2024
Joined: Thu Nov 26, 2009 7:03 pm
Location: Caroline Springs, western Melbourne
Contact:

Re: US Weather (General)

Post by norfolk »

Twister wrote:Heading to Miami Tomorrow for TC bonnie very extised 100-200mm of rain and 90km/h winds expected hopefully gets bit stronger looking forward to it
What's the chance Bonnie will make impact on the New Orleans/Louisiana coast?
User avatar
Blackee
Site Admin/Moderator
Reactions:
Posts: 3855
Joined: Tue Nov 24, 2009 8:57 pm
Location: Elwood and Mansfield 370m

Re: US Weather (General)

Post by Blackee »

norfolk wrote:
Twister wrote:Heading to Miami Tomorrow for TC bonnie very extised 100-200mm of rain and 90km/h winds expected hopefully gets bit stronger looking forward to it
What's the chance Bonnie will make impact on the New Orleans/Louisiana coast?
Tony, the forecast track is spot on for a impact around New Orleans
http://www.intellicast.com/Storm/Hurric ... type=track

Good luck down in Florida Dean!
Mansfield 370m and Elwood
n
norfolk
Supercell
Reactions:
Posts: 2024
Joined: Thu Nov 26, 2009 7:03 pm
Location: Caroline Springs, western Melbourne
Contact:

Re: US Weather (General)

Post by norfolk »

A friend of mine asked what would happen if lightning struck the oil in the Gulf? I wasn't sure that was possible. Is it? and if so would it make the oil catch on fire?
K
Ken
Cumulonumbus Calvas
Reactions:
Posts: 594
Joined: Wed Mar 17, 2010 11:07 pm
Location: Brisbane

Re: US Weather (General)

Post by Ken »

I was keeping an eye on the severe thunderstorm outbreak unfolding over the northeast US this morning (Sat morning Oz time) when doppler wind showed particularly long-lived strong rotation associated with a supercell make it out of Pennsylvania and headed directly towards Manhattan (by this stage, New York City itself was tornado-warned) before finally fizzling out just short of the city. Looked like the city avoided a potentially dangerous situation with a fair bit of damage left behind shortly prior in Pennsylvania. The setup was impressive by northeast US standards with analysed supercell and tornado ingredient parameters similar to what you'd normally expect in the Midwest (effective storm relative helicities soared up to 500 m^2/s^2 in some areas in the region).

Still looks pretty volatile again tomorrow and the SPC has the area under a slight risk for severe storms again so could be interesting if cloud cover/early convection doesn't suppress things too much. The persistent heat continues with NYC's forecast max temp later today of 37C with dewpoints in the low to mid 20's (giving forecast heat index values up to 43C in parts of New Jersey). Min temps having been struggling to get below the high 20's on some nights lately.

Below is an extract from today's area forecast discussion prior to the arrival of the supercell/s:

.SYNOPSIS...
A WARM FRONT LIFTS THROUGH THE REGION TONIGHT...THEN HAZY...HOT
AND HUMID CONDITIONS ON TAP FOR SATURDAY. A COLD FRONT MOVES ACROSS
THE REGION SATURDAY EVENING...FOLLOWED BY ANOTHER WAVE ON SUNDAY.
HIGH PRESSURE BUILDS EAST FOR THE NEW WEEK.

&&

.NEAR TERM /THROUGH SATURDAY/...
-- Changed Discussion --TORNADO WATCH 525 IS IN EFFECT UNTIL 1AM SATURDAY FOR ROUGHLY THE
WESTERN HALF TO TWO THIRDS OF THE CWA. CLOUDS CLEARING OUT EARLIER
WHERE THE WATCH IS IN PLACE HAS ALLOWED MLCAPES TO INCREASE UP TO
AROUND 1500 J/KG ALONG THE WESTERN BORDER OF THE CWA...ALONG WITH
0-1 KM STORM RELATIVE HELICITY UP TO AROUND 400 M2/S2 COURTESY OF
WARM FRONT OVER THIS AREA. CELL SHOWING PERSISTENT STRONG MID
LEVEL ROTATION NEARING WESTERN PASSAIC COUNTY AS OF 730 PM IS THE
IMMEDIATE CONCERN AND LIKELY HAS A HISTORY OF DAMAGE IN
NORTHEASTERN PA. FURTHER DEVELOPMENT OF CELLS POSSIBLE WITH PLENTY
OF CAPE FOR THE NEXT COUPLE OF HOURS AND ROUGHLY 40 KTS OF BULK
SHEAR.
Locked