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August 4 Weather Xtreme Video

Weather Xtreme Video - Mon, 08/04/2014 - 07:03
August 4 Weather Xtreme Video
The ABC 33/40 Weather Xtreme video is a detailed weather discussion for Alabama and the Southeast U.S. which goes beyond the normal stuff you see on TV! From... From: abc3340 Views: 355 3 ratings Time: 06:01 More in News & Politics
Categories: Weather

Upper Trough Weakens

ABC 33/40 Weather Blog - Mon, 08/04/2014 - 07:02

An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.

A couple of small, subtle changes are occurring in the weather pattern which should mean less showers for the forecast for a couple of days. First, some slightly drier air to the north will slowly slide into North and Central Alabama. Second, the pesky upper trough which has been sliding back and forth across the area will weaken as we come more under a northwesterly flow aloft. Both of these combine to suppress most shower development across North and Central Alabama and keep the focus for isolated showers across South Alabama where the deeper moisture will continue to reside.

Temperatures will push upward slightly as a result with highs mainly in the 90 to 94 range for much of the week ahead.

While school is getting ready to start for some this week, beach goers enjoying the Alabama coast will see scattered showers a possibility each day with highs in the upper 80s. Water temperatures still running in the lower to middle 80s in the Gulf along the coast.

The trough that has helped to keep our weather somewhat unsettled weakens in the week ahead and slides further eastward resulting in more of a northwesterly flow for us. This should help to keep the moisture down somewhat until later in the week when values creep back upward. Also that northwesterly flow brings the potential for large thunderstorm clusters to develop in the Central Plains and move southeastward into the Southeast US. No real skill in identifying one of these more than a several hours in advance, but being aware of the pattern helps to keep us ready if a forecast adjustment becomes needed.

Tropics are quiet outside of Bertha which is likely to become a hurricane on Tuesday as it moves northward away from the Bahamas. The storm continues to be well behaved as it traverses the western Atlantic between the eastern US trough and the subtropical high over the Central Atlantic. This keeps the storm a threat primarily to shipping interests for the western and northern Atlantic and away from land.

Week two or voodoo country still showing no sign of extreme heat with the possibility of another strong trough deepening across the eastern half of the US around the middle of August. With the pattern we’ve seen much of the summer, I do not plan to bet against this outcome!

And you can follow news and weather updates from ABC 33/40 on Twitter here. Stay in the know by following the whole gang – here’s the list…

James Spann Charles Daniel Bill Murray Brian Peters E-Warn (AL wx watches/warnings)

The next Weather Xtreme Video will come Tuesday morning as we stay on a one-a-day schedule while James is on vacation. Godspeed.

-Brian-

Categories: Weather

Afternoon Update

ABC 33/40 Weather Blog - Sun, 08/03/2014 - 14:54

SIDEWALK: We are less than three weeks from Birmingham’s world class film festival. One of my favorite weekends of the year, make sure to make plans to attend several films. Click on the link above for more information and to purchase tickets.

Click image to enlarge.

AFTERNOON UPDATE: Several features of interest this afternoon on the GR Earth map.

…The cumulus field is decent across Central Alabama. It is thinner to the north, where moisture levels are lower and to the south, where morning clouds kept down the heating.

…A few showers had formed in some of the same areas as yesterday. The heaviest was between Vernon and Belk in Lamar county, with others straddling the line between Marion and Lamar Counties. Others were trying to form over southern Winston and northern Walker Counties. Another was over the City of Tuscaloosa. Everything was drifting slowly southeast. Storms will rain themselves out pretty quickly since there is little wind shear.

…Temperatures across Central Alabama were in the upper 80s generally. Birmingham did touch 90F briefly.

…Tropical Storm Bertha is 689 miles south of Birmingham at this hour. It has turned northwestward and will begin to recurve to the north and northeast tonight and Monday. It is no threat to land. Top winds are still 45 mph but some modest strengthening is expected and it will stop just short of becoming a hurricane.

Categories: Weather

A Quick Check on the Tropics

ABC 33/40 Weather Blog - Sun, 08/03/2014 - 12:15

Tropical Storm Bertha is pulling through the southeastern Bahamas late this morning.

It is beginning to make the expected turn to the north that will eventually presage its recurvature away from the United States. The storm is expected to miss Bermuda as well.

It has top winds of 45 mph but is expected to strengthen some later today as it moves over warm water and encounters upper level winds that are a little more favorable for development. It should not reach hurricane intensity (74 mph or higher) though.

It will pass about 200 miles southeast of Cape Hatteras Tuesday morning as it accelerates northeastward. It will pass a couple of hundred miles southeast of Newfoundland Thursday morning then start the trek across the North Atlantic.

ELSEWHERE
A trough of low pressure over the Bahamas (not associated with Bertha) is disorganized and does not appear to be a candidate for development.

Categories: Weather

Dancing With the Stats

ABC 33/40 Weather Blog - Sun, 08/03/2014 - 11:11

The upper level trough over the eastern United States continues to keep temperatures on the cool side in places to our north.

The 57F at Jackson KY yesterday was a record for the August 2nd. Roanoke and Danville VA both had record cool maximums as well with 72F.

Record cool continues across the Arklatex as well, as clouds and showers have kept readings cool the past few days. El Dorado AR and Monroe LA both had record cool maximums again yesterday with 81F and 80F respectively.

The 72F at Monroe on Friday and the 69 at El Dorado were all time record cool highs for August.

Just a few more entries in the old weather record books.

Categories: Weather

Shower Chances Dip Somewhat

ABC 33/40 Weather Blog - Sun, 08/03/2014 - 06:48

An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.

The upper trough axis remains in our area and helped to produce numerous showers and thunderstorms across the northwest quadrant of Alabama yesterday afternoon. Enough so that I ended up with nearly 1.5 inches of rain in slow moving storms during the afternoon. Those storms produced an interesting temperature trace for the afternoon.

Looking a bit drier for Central Alabama today with that pesky upper trough axis moving a bit east and providing a slight northwesterly flow. This positioning puts us in the area for less shower development with some slightly drier air aloft but we’re still looking at isolated showers. Showers will be a little more numerous across South Alabama where the deeper moisture resides. Highs today will be mainly in the upper 80s with periods of clouds and sunshine here and there.

For beach goers, look for 4 to 6 hours of sunshine along the Alabama and Northwest Florida coast where showers will be occurring off and on today and Monday. Air temperatures will continue to be in the 86 to 88 degree range as water temperature values remain in the lower and middle 80s. Looks like a return to more widely scattered showers into the middle of next week.

In the tropics, Bertha remained somewhat disorganized with a closed surface center somewhat hard to locate as it was approaching the Southeast Bahamas. The storm is likely to remain disorganized for the next 24 hours as it moves away from Puerto Rico and Hispaniola. However, conditions will improve with water temperatures going up which is likely to allow the system to gain strength and perhaps become a hurricane as it recurves around the subtropical high in the Atlantic and the trough over the eastern US. The recurvature should keep it in the Atlantic away from the US coastline.

The upper trough maintains a presence in our area into the first of next week, so showers remain a possibility but I think we get back to something more closely matching a summertime pattern with daily showers driven mainly by afternoon heat especially across the northern half of Alabama with some slightly drier air in place. With the weak trough in place, can’t completely rule out an isolated shower at almost any time. But as the trough does weaken some and the upper flow becomes more northwesterly, we should experience some upper level drying that will suppress showers somewhat.

As I mentioned yesterday, that northwesterly flow also brings the potential for large thunderstorm clusters to form over the Central Plains and move into the Southeast US. Certainly not much skill at forecasting a specific threat for a specific spot, but we need to be aware of this potential in the forecast which might require last minute adjustments. The northwesterly flow on Tuesday and Wednesday may actually bring a couple of days for almost no showers though it is hard to take all mention of showers out of the forecast.

Out in Voodoo country – week two of the forecast – the pattern remains fixed on the trend of keeping a fairly substantial trough over the eastern US while the westerlies remain well north in Canada. But by the end of the period the ridge becomes stronger across the southern tier of the US keeping isolated showers a daily occurrence.

And you can follow news and weather updates from ABC 33/40 on Twitter here. Stay in the know by following the whole gang – here’s the list…

James Spann Charles Daniel Bill Murray Brian Peters E-Warn (AL wx watches/warnings)

I will be filling in on ABC 3340 at 5 and 10 pm for Meaghan Thomas so you can catch the latest weather forecast then. Enjoy the day and Godspeed.

-Brian-

Categories: Weather

August 3 Weather Xtreme Video

Weather Xtreme Video - Sun, 08/03/2014 - 06:46
August 3 Weather Xtreme Video
The ABC 33/40 Weather Xtreme video is a detailed weather discussion for Alabama and the Southeast U.S. which goes beyond the normal stuff you see on TV! From... From: abc3340 Views: 184 3 ratings Time: 06:12 More in News & Politics
Categories: Weather

Some Showers and Storms

ABC 33/40 Weather Blog - Sat, 08/02/2014 - 13:24

As expected today, the radar has gotten active once the atmosphere over the state warmed up.  This very warm and moist air mass in place can support scattered to numerous showers and storms in certain areas. As of now, the majority of the activity has been to the west of Interstate 65. There are some locations seeing some heavier rain, and there could even be a few rumbles of thunder at times.

Today’s activity is not moving rapidly, and the general motion is off towards the southeast. If you are lucky enough to see the rain today, it should not last too long, no more than an hour.

Throughout the afternoon, we will continue to see this activity persist, however, not everyone will see the rain today. Many locations continue to see a mix of sun and clouds, and it continues to be rather muggy. Highs this afternoon are ranging from the mid to upper 80s.

Click image to enlarge.

Categories: Weather

Update on Bertha

ABC 33/40 Weather Blog - Sat, 08/02/2014 - 11:17

Tropical Storm Bertha continues to move rapidly across the northeastern Caribbean today. Bertha remains rather unorganized, but still has sustained winds of 50 mph. Over the next 24-48 hours, Bertha could intensify some, and she will begin to take a more northerly turn. Heavy rain and gusty winds will be impacting Puerto Rico, the Virgina Islands, and the Dominican Republic today through tonight as Bertha passes nearby.

Here are the latest specifics on Berta.

…CENTER OF BERTHA PASSING JUST SOUTH OF PUERTO RICO…
…TROPICAL STORM WARNING ISSUED FOR PORTIONS OF THE DOMINICAN
REPUBLIC…

SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
———————————————–
LOCATION…17.2N 66.7W
ABOUT 90 MI…150 KM SSW OF SAN JUAN PUERTO RICO
ABOUT 230 MI…370 KM ESE OF SANTO DOMINGO DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…WNW OR 295 DEGREES AT 22 MPH…35 KM/H
MINIMUM CENTRAL PRESSURE…1008 MB…29.77 INCHES

Now the important question, where is Bertha heading? As she begins to take a more northerly turn, she will affect the Turks and Caicos Islands, as well as the southeastern Bahamas. Bertha will then begin to take the northeasterly turn and accelerate. She should stay west of Bermuda, and well to the east of the Atlantic Coast of the U.S. mainland. Bertha should remain a tropical storm, but there is a chance for her to reach hurricane strength briefly over the open waters of the Atlantic.

Categories: Weather

Somewhat Unsettled Today and Sunday

ABC 33/40 Weather Blog - Sat, 08/02/2014 - 06:38

An all new edition of the ABC 33/40 Weather Xtreme video is available in the player on the right sidebar of the blog. You can subscribe to the Weather Xtreme video on iTunes by clicking here.

Looking like a bit of an unsettled weekend for Central Alabama with the presence of that pesky upper trough axis that is currently just to our west. This positioning puts us in the better area for lift for today, but as the radar shows, we’re looking at scattered showers that remain fairly small with rainfall that occurs expected to be light for any one spot. Clouds and the presence of showers will help to keep temperatures below seasonal values with highs mainly in the middle 80s with perhaps some breaks in the clouds here and there allowing a little sunshine. One of those days where the forecast and weather includes everything from sunshine to rain!

For beach goers, look for 4 to 6 hours of sunshine along the Alabama and Northwest Florida coast where showers will be occurring off and on today and Sunday. Air temperatures will continue to be in the middle and upper 80s as water temperature values remain in the lower and middle 80s. Looks like a return to more scattered showers into next week.

In the tropics, Bertha remained somewhat disorganized as it was approaching Puerto Rico. The storm is likely to remain disorganized for the next 36 hours as it ingests some dry air as well as interacting with the land areas of Puerto Rico and Hispaniola. However, as it begins to move away from that area, conditions will improve with water temperatures going up which is likely to allow the system to gain strength and perhaps become a hurricane as it recurves around the subtropical high in the Atlantic and the pesky trough over the eastern US. The recurvature should keep it in the Atlantic away from the US coastline.

The upper trough maintains a presence in our area into the first of next week, so showers remain a possibility but I think we get back to something more closely matching a summertime pattern with daily showers driven mainly by afternoon heat. With the weak trough in place, can’t completely rule out an isolated shower at almost any time. But as the trough does weaken some and the upper flow becomes more northwesterly, we should experience some upper level drying that will suppress showers. But we still maintain small chances for those daily showers with no appreciable relief from the overall dryness.

The northwesterly flow also brings the potential for large thunderstorm clusters to form well off over the Central Plains and move into the Southeast US. Certainly no skill at forecasting a specific threat for a specific spot, mainly need to be aware of this potential in the forecast which might require last minute adjustments.

Voodoo country – week two of the forecast – remains fixed on the trend of keeping a fairly substantial trough over the eastern US while the westerlies remain well into Canada. But by the end of the period the ridge becomes stronger across the southern tier of the US keeping isolated showers a daily occurrence.

And you can follow news and weather updates from ABC 33/40 on Twitter here. Stay in the know by following the whole gang – here’s the list…

James Spann Charles Daniel Bill Murray Brian Peters E-Warn (AL wx watches/warnings)

I expect to post the next Weather Xtreme Video on Sunday morning by 8 am or so. Enjoy the day as we stay a tad below early August temperatures. Godspeed.

-Brian-

Categories: Weather

August 2 Weather Xtreme Video

Weather Xtreme Video - Sat, 08/02/2014 - 06:34
August 2 Weather Xtreme Video
The ABC 33/40 Weather Xtreme video is a detailed weather discussion for Alabama and the Southeast U.S. which goes beyond the normal stuff you see on TV! From... From: abc3340 Views: 231 3 ratings Time: 06:48 More in News & Politics
Categories: Weather