Meteorologist Dave Nussbaum's Weather Blog

...Tornado Watch for SE LA Until 9 PM... Possible Severe Weather Today :  Scattered showers and thunderstorms are starting to pop-up across SE LA this afternoon.  The atmosphere has become unstable again after the rain we had this morning.  This could cause the storms to become strong to severe with damaging winds, large hail and a few tornadoes.  SPC has SE LA in a Slight Risk for severe weather today and Washington Parish and Pearl River County, MS are in a Moderate Risk - meaning they have a greater chance of severe weather. These storms are being set off by an upper-level disturbance, a cold front, outflow boundaries and an very unstable atmosphere.  When you add up all of these ingredients you get the threat for severe weather.  Due to all of this, SPC has issued a Tornado Watch for areas along and north of I-12 in our viewing area until 9 PM.  Fortunately, the weather is not expected to be as violent as it was yesterday in Mississippi...

A cold front is going to move across Southeast Louisiana on this Earth Day, but it will not bring us much rain.  Actually, the front will not live up to its name!  You can expect mostly cloudy skies with only a 20-30% chance for an isolated shower or thunderstorm.  Most of you will not see any rain.  Highs will be mid to upper 70s with a few spots making it to 80 if you see more sunshine. The front will be along the coast tonight and we will not cool down much behind it.  There will be partly cloudy skies overnight with lows in the lower 60s. An area of high pressure will build over us on Wednesday and Thursday.  Each day will have mostly sunny to partly cloudy skies with highs in the lower 80s and lows in the lower to mid 60s.  The outlook for the busy weekend (Jazz Fest & the Zurich Classic) calls for partly cloudy skies on Friday, Saturday and Sunday with only a 10% chance for a pop-up shower each day.  It will become m...

Friday Night :  The cold front is moving across SE LA tonight and that will push the rain and storms to the LA Coast.  Overnight, we will keep partly to mostly cloudy skies around with a few spotty showers (20% Chance).  Lows will be near 56 north of the lake and 60 south. Saturday Outlook :  The cold front will stay stalled along the LA Coast on Saturday.  As it sits there, weak disturbances will move along it from west to east.  This will set off scattered showers and thunderstorms during the day (50% Chance).  However, the bulk of the rain will be along and south of the I-10 corridor.  North of I-10 it will be just some isolated to scattered showers/storms.  Any storm could produce heavy rain.  We will be cooler with highs struggling to reach 70. The tail-end of the cold front will start to retreat back to the north as a warm front on Saturday Night.  At the same time an area of low pressure is expected to develop along th...

Pleasant Weather Today :  You can expect a gorgeous day today with plenty of sunshine as an area of high pressure sits over Louisiana.  We will still be a little cool with highs in the lower 60s.  It would be a nice day to go out for lunch! Another Cold Night :  Get ready for another chilly night across Southeast Louisiana.  We will be clear with lows in the mid 30s north of the lake with some patchy frost, and in the mid 40s south of the lake.  Be sure to cover or bring in any plants tonight north of the lake! Friday will start out quite chilly, but we will quickly warm up.  The area of high pressure moves east of Louisiana toward Georgia.  This will shift the winds from the northeast to the southeast and that will help to warm us back up.  It will draw up some Gulf Moisure, so we'll become partly cloudy with highs around 70.  Friday Night will not be as cold with mostly cloudy skies and lows near 60.  Weekend Ou...

A Perfect Monday :  We will have a beautiful afternoon across Southeast Louisiana with mostly clear skies and Spring-like temperatures in the mid 70s.  Be sure to get outside and enjoy this weather because it will be changing soon! Clouds will be on the increase tonight, and we could see a few spotty showers toward daybreak.  Patchy fog is also possible.  It will be a cool night with lows in the mid to upper 50s north and south of the lake.   A Wet Tuesday :  The big change in our weather starts tomorrow.  An area of low pressure will form in the Western Gulf and track toward Louisiana.  This will send scattered to numerous showers and some thunderstorms over us starting mid morning.  Some heavy rain is likely for areas along and south of I-10.  1 to 2 inches of rain will be possible according to the latest forecast models.  See the image below.  I'm not expecting any severe weather at this time, but there cou...

Here is a breakdown of how much snow and ice we are expecting across SE LA starting on Tuesday AM thru Wednesday AM.  Some areas in Southern Mississippi could see even more snow (3"+).  This would be the most snow we have seen in years!  1/4" to 1/2" of ice is SIGNIFICANT!  This would be enough to down trees and power lines.  Please plan for some power outages all across Southeast Louisiana.  The NWS has a Winter Storm Warning for all of SE LA starting on Tuesday Morning and lasting until Wednesday Morning.  This is issued when significant snow and ice are expected, and when travel will be significantly impacted!! Look for updates from the forecast from the WWL-TV's Pinpoint Forecast Center.  You can also follow our Twitter feed as well: @wwltvweather

...Winter Storm WARNING from 6 AM Tuesday Until 6 AM Wednesday... As I've been talking about the last few days, our next winter storm is upon us.  Right now, a cold front is moving into Southeast Louisiana.  This front is setting off some scattered showers across far SE LA and they will continue into the afternoon hours.  High temperatures will be in the lower 60s this afternoon. Once the cold front moves through this afternoon/evening, the temperatures will start to fall.  This will be the leading edge of the cold air heading our way.  The rain will come to an end, and we will be left with mostly cloudy skies.  Low temperatures will fall into the upper 20s north of the lake and the lower 30s south. Tuesday's Winter Mess :  The Winter Storm Warning begins on Tuesday at 6 AM and goes until 6 AM Wednesday due to the fact we will have some hazardous winter weather and it will make traveling treacherous!  We will start out on Tuesday M...