Arklatex Weather :: Weather From Around the ArkLaTex :: Shreveport Bossier Texarkana Marshall
  24-Hour Forecast
24-Hour Forecast
7-Day Forecast
7-Day Forecast
Current Temps
Current Temps
Radar Image
Radar Image

Evening Atmospheric Analysis


skewtshv8

Weather Balloon Data from www.rap.ucar.edu/weather
& the Shreveport National Weather Service

Tonight’s sounding data is pretty benign with dry and stable weather conditions from the ground up to about 24,000 Feet where some high, thin and wispy cirrus clouds showed up this afternoon and evening.  These clouds are made of ice crystals and are too high up plus too thin to drop any significant precipitation on us.

fcst_next_chg4

The visible satellite shown above indicates the cirrus clouds in white over the northern part of the ArkLaTex earlier today.  The clouds thicken up much farther out to the west where our next storm system is.  This system just skirts our area giving us only a slight chance of rain.

cirrus-clouds-horz

Here’s a photo of the kind of clouds that moved in this afternoon.  Notice how thin they are where sunlight passes through with ease.  The clouds should thicken up some over the next few days limiting our sunlight.

Stay tuned to KTBS 3 and KPXJ CW 21 for forecast updates.

Joe Haynes

Weather | Mar 15

Weak cold front moves through practically unoticed!


skewtshv7

Skew-T/Log-P graph of the SHV upper air sounding from
www.rap.ucar.edu/weather and the Shreveport National
Weather Service

This morning’s analysis of the Shreveport National Weather Service’s weather balloon data shows a dry and stable atmosphere across the ArkLaTex this morning.  This was proven by plenty of sunshine across our area!

There was one little subtle item that showed up in the data-a weak cold front.  This weather feature came through pretty much unoticed with the exception of a temperature inversion (where the air warms up as you ascend instead of the normal cool down) at about 2,800 Feet in altitude.  This also shows up nicely with the computer analysis of the 925 mb barometric pressure level corresponding to the same altitude (2,800 FT).

analysis925mb

Data from www.rap.ucar.edu and NOAA.

I drew a cold front in blue where is was at the 925 mb level early this morning-i.e. the weak front was right overhead.  In the analysis, the lines of equal height (black) kink to our east and bend around to our north and don’t show up to our south.  Also, the wind barbs in black changed direction right over the ArkLaTex.  These are all indications of a discontinuity in the data or a change of air mass or a front moving in.

Other than the sounding data, the front once again came through practically unoticed.  We still started out nice and continue that way this afternoon.

Enjoy the rest of the day!

Joe Haynes

Weather | Mar 15

Rain damage, detours hinder commutes in Northeast


 

EGG HARBOR CIFlooding on Main Street in Bound Brook, N.J., Sunday, March ...TY, N.J. – A torrential rainstorm that brought heavy winds to the Northeast, causing damage and flooding, created some minor headaches for commuters Monday.

At least eight people died in storm-related accidents over the weekend, and nearly half a million people were without electricity in Pennsylvania, New Jersey, New York and Connecticut at the peak of the storm.

Authorities warned that the storm could cause rush-hour delays on Monday morning, but the impact was relatively minor, especially compared with the havoc wreaked by nasty winter storms in recent months.

In Boston, the transit authority shut down some sections of subway and trolley lines on Sunday, but the lines were mostly reopened on Monday. Several highway ramps in Massachusetts remained closed.

NJ Transit briefly shortened the routes of some trains into Manhattan, but restored service later in the morning. The Long Island Railroad pumped out an East River tunnel, allowing trains to pass through normally.

In New Jersey, Gov. Chris Christie declared a state of emergency, which would allow National Guard troops to be called up if needed. In signing the declaration Sunday night, Christie said he wants to ensure local and county resources are supplemented if needed.

Utility crews were making headway in restoring power. In New Jersey, for example, about 100,000 customers were without service Monday, down from a peak of 235,000. In Connecticut, where a handful of schools were closed, two major utility companies said more than 57,000 customers were still without power, down from a peak of about 80,000.

The storm, which carried wind gusts of up to 70 mph, came about two weeks after heavy snow and hurricane-force winds left more than 1 million customers in the Northeast in the dark.

“I spent most of the past few months clearing snow and ice out my driveway, sidewalks, front walks, and now we’re picking up all these branches,” Jack Alexander said Sunday as he and his family worked to clear debris from the front yard of their Egg Harbor City home. “It seems like we’ve had every type of weather event you could have this winter — I’m almost afraid to see what else can happen.”

In Atlantic City, N.J., residents in a condominium complex and two apartment buildings were ordered to leave their homes Saturday after a crane snapped and twisted at the Revel Entertainment casino construction site, sending debris crashing through a window of a police cruiser. No one was hurt. The residents may not be able to return until Tuesday.

Hundreds of people remained out of their homes in the northern New Jersey community of Bound Brook, where flooding is common.

Among those in a shelter were the Malik family, including eldest son Norbert, who celebrated his ninth birthday Sunday. His mom said he had cried Saturday night because he was worried the storm would ruin his celebration. Instead, he said it was the best birthday he ever had.

“I got to ride in a police boat, and then a truck and a small bus,” said Norbert.

In Manhattan, Broadway’s sidewalks and trash cans were littered with hundreds of shattered umbrellas.

Falling trees proved to be a deadly hazard.

A New Jersey woman was killed and three others were injured in Westport, Conn., after a tree fell on a car Saturday night during the storm, police said. Another woman died when a tree struck her as she was walking in Greenwich, Conn., they said.

In the suburb of Teaneck, N.J., two neighbors were killed by a falling tree as they headed home from a prayer service at a synagogue. In Hartsdale, N.Y., another suburb, a man was killed when a large tree crushed the roof of his car and entangled it in live wires.

A 73-year-old woman was killed by a falling tree while walking to her car in Bay Shore, N.Y. Three people tried to save the Brooklyn woman.

In New Hampshire, a large pine tree fell on a car traveling on Interstate 93 on Sunday afternoon, killing a man and injuring his wife and child, state police said.

And in Rhode Island, an off-duty state trooper died early Sunday after his car hydroplaned in standing water left from the storm, state police said.

Weather | Mar 15

The nice weather continues!


watervapor_march14

Water Vapor Image, Courtesy of RAP Real-Time Weather

It was a beautiful afternoon on Sunday, with highs in the mid 70s! Fortunately, this nice weather is going to continue for the next several days. Temperatures will be a tad cooler on Monday, with highs in the mid to upper 60s.  Another upper level low pressure system is moving out of the southwest this evening, and will into west Texas by late Monday into Tuesday.  This will most likely increase our cloud cover slightly, especially on Tuesday and Wednesday. For now, it looks like all of the rain associated with that system will remain in west Texas, but there is a very slight chance for a few light showers in deep east Texas late Tuesday.  Otherwise, temperatures will remain in the mid 60s for Tuesday and Wednesday.

The end of the work week will be dry, with our next chance for rain in the forecast on Saturday and Sunday.

Weather | Mar 14

Daylight Saving Time begins Sunday morning


daylight_saving_time

Sunday morning at 2 AM, Daylight Saving Time will begin, and we will ’spring forward’ and turn our clocks forward one hour. This means that the sun will be out an hour later; sunset on Sunday will be at 7:23 PM, instead of 6:22 PM. So how and when did Daylight Saving Time begin? Here is an article from WGN in Chicago:

It’s time to spring forward again…And as you set your clock ahead one hour at two a.m. Sunday morning, you might be wondering why do we do it.

Benjamin Franklin came up with idea of Daylight Saving in the 18th century to increase the number of productive daylight hours during seasons when the sun rises earlier.

Standard time zones were instituted way back in 1883, although it wasn’t established as a law until 1918.

But a lot of folks didn’t like the idea, so it was scrapped until early in World War II.

Then The Uniform Time Act in the 1960’s provided standardization in the dates, which have varied ever since.

Since 2007, Daylight Saving Time starts on the second Sunday in March, and ends on the first Sunday in November.

So even though we get more sun light in the day, we loose an hour of sleep! What do you think about Daylight Saving Time?

Marcy Novak

Weather | Mar 13

Dry night across the ArkLaTex


skewtshv6

Tonight’s weather balloon data from the Shreveport National Weather Service and RAP UCAR shows a stable atmosphere above the ArkLaTex. The air is quite dry from the ground up to about 9700 FT.

There, the air is saturated and thus some mid level alto-stratus clouds show up in the data. These clouds are quite thin and not likely to produce significant rainfall. Only a few sprinkles are possible.

Above this level, the air is very dry again all the way to the stratosphere (where temperature and dew point lines turn right at 300 mb or nearly 30,000 FT). Looks like a good night for us (weather wise) and should be for most of the weekend.

Sunday appears to be the pick day with less wind and clouds than what’s expected for Saturday. It should be warmer too with highs near 70.

Have a nice weekend.

Joe Haynes

Weather | Mar 12

Something New


ktbs_weather_page

If you go back to the Weather Page on ktbs.com, click on the Home Field Forecast icon on the right.

ktbs_weather_page_homefieldfcst

Once there, you can get current radar and lightning data, plus short term forecasts and rainout information for the current soccer season and the upcoming little league season.

I hope this information helps.  If you have any comments, leave them below.

Have a nice weekend!

Joe Haynes

Weather | Mar 12

Tornado confirmed in south Arkansas


The National Weather Service completed a storm survey in Hempstead County in southern Arkansas, and confirmed than an EF0 Tornado touched down on Wednesday evening.  Here is their official report:

an ef0 tornado initially touched down west of west hempstead 40 rd…along a logging road…where it downed a number of trees and several large branches. the tornado then continued in a northeast direction where it crossed highway 371 knocking down several large trees and the power lines adjacent to the highway…before lifting. maximum winds were estimated at 70 mph. the path length was 2.4 miles with a path width of 50 yards.

Marcy Novak

Weather | Mar 12

Best Funnel Cloud photo from Wednesday!


tornadoashdown

I think that this is the best photo from yesterday’s so called “Funnel Cloud Outbreak”! I’m not sure who took the photo and emailed it to us, but they sure did a fine job and were quite courageous in doing so!!

Fortunately, that funnel never reached the ground to become a tornado. Nevertheless, this was awesome site! Check out more funnel cloud pics in our Weather Photos section. If you have any pictures that you want to send-either upload them there or email them to pics@ktbs.com.

Joe Haynes

Weather | Mar 11

Strange Weather Tonight!


mega3doppler

Tonight, Mega 3 Doppler Radar shows rain composed of showers and thunderstorms pushing across the ArkLaTex at about 40 mph to the northeast. Much of the rain is not reaching the ground due to a very dry lower atmosphere.  Also, some nickel sized hail has been reported and winds have been gusty around the rain!

watervapor2

These showers and storms developed in response to a very strong and cold upper atmospheric weather disturbance on the back side of last night’s storm system. The intense vertical lift generated by this system has been enough to overcome the really dry lower atmosphere (dew points in the 30s-40s) to wring out enough moisture in the form of rain and hail.

skewtshv5

Tonight’s sounding data from the Shreveport National Weather Service and RAP UCAR shows an analysis like you would see in Denver Colorado. The middle part of the atmosphere is saturated from 12,000-15,000 FT where the clouds and rain are. The lower atmosphere is still very dry after last night’s dry line passage.

Most of the rain falling into the dry lower levels is evaporating before reaching the ground. Thus, gusty and cold winds are blowing out from the showers and storms. Also, with the very cold lapse rate (temps dropping 20 degrees C from near 10,000 FT to 15,000 FT) in tonight’s atmosphere (i.e. instability) plus the dynamics of the upper level disturbance, thunderstorms with hail have formed.

I remember several times in Denver when we had the same type weather! This certainly is strange for us as we usually are more humid!

Have a great night.

Joe Haynes

Weather | Mar 11