Chalmette, Louisiana Weather Conditions

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Current Conditions

  • 75°
  • Mostly Cloudy
  • Wind: SW 12 mph
  • Humidity: 60%
  • Visibility: 10.0 miles
  • Dew Point: 60°
  • Pressure: 29.96 in. -

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Next 12 Hours

12  pm
3  pm
6  pm
9  pm
12  am
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Rain Showers
Rain Showers
70°
70°
63°
66°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of a Thunderstorm
  • High: 75 °
  • Low: 45 °
  • Chance of T-Storms
  • Monday
  • Partly Cloudy
  • High: 54 °
  • Low: 39 °
  • Partly Cloudy
  • Tuesday
  • Chance of Rain
  • High: 52 °
  • Low: 50 °
  • Chance of Rain
  • Wednesday
  • Partly Cloudy
  • High: 59 °
  • Low: 50 °
  • Partly Cloudy
  • Thursday
  • Chance of Rain
  • High: 63 °
  • Low: 36 °
  • Chance of Rain

Forecast for Chalmette, Louisiana

Updated: 9:00 AM CST on February 01, 2015

  • Sunday

    Overcast with a chance of rain, then a chance of a thunderstorm and rain showers in the afternoon. High of 70F. Winds from the South at 10 to 15 mph. Chance of rain 60%.

  • Sunday Night

    Overcast with a chance of a thunderstorm and rain showers, then rain showers after midnight. Low of 45F. Windy. Winds from the WSW at 15 to 25 mph with gusts to 35 mph shifting to the NW after midnight. Chance of rain 70%.

  • Monday

    Partly cloudy with a chance of a thunderstorm in the morning, then clear with a chance of a thunderstorm. High of 54F. Breezy. Winds from the NNW at 15 to 25 mph with gusts to 30 mph.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 39F. Breezy. Winds from the NNE at 10 to 20 mph.

  • Tuesday

    Partly cloudy. High of 52F. Winds from the ENE at 5 to 15 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast with a chance of rain in the evening, then mostly cloudy. Low of 50F. Winds from the East at 5 to 10 mph.

  • Wednesday

    Partly cloudy in the morning, then overcast. High of 59F. Winds from the East at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy in the evening, then overcast with a chance of rain. Low of 50F. Winds from the East at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.8 in. possible.

  • Thursday

    Clear with a chance of rain. Fog early. High of 63F. Winds from the NE at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Thursday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 36F. Breezy. Winds from the North at 15 to 25 mph. Chance of rain 20%.

  • Friday

    Clear. Fog early. High of 48F. Breezy. Winds from the North at 15 to 25 mph.

  • Friday Night

    Clear. Low of 43F. Breezy. Winds from the NE at 10 to 20 mph.

  • Saturday

    Clear. High of 57F. Winds from the ENE at 10 to 15 mph.

  • Saturday Night

    Clear. Low of 46F. Winds from the SE at 5 to 15 mph.

  • Sunday

    Clear. High of 59F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 52F. Winds from the WSW at 5 to 15 mph.

  • Monday

    Clear. High of 59F. Winds from the WNW at 5 to 10 mph.

  • Monday Night

    Clear. Low of 48F. Winds from the NW at 5 to 10 mph.

  • Tuesday

    Clear. High of 57F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Fog overnight. Low of 52F. Winds less than 5 mph.

  • Wednesday

    Clear with a chance of a thunderstorm. Fog early. High of 59F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Clear with a chance of rain. Low of 52F. Winds less than 5 mph. Chance of rain 20%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: HOV/BCO/BCEL, Belle Chasse, LA

Updated: 12:07 PM CST

Temperature: 71.1 °F Dew Point: 65 °F Humidity: 81% Wind: South at 4.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: SpringWood Estates, Belle Chasse, LA

Updated: 11:58 AM CST

Temperature: 72.5 °F Dew Point: 67 °F Humidity: 82% Wind: SSE at 6.8 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Gulf Coast Special Systems, Gretna, LA

Updated: 12:07 PM CST

Temperature: 73.4 °F Dew Point: 65 °F Humidity: 74% Wind: SSW at 5.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: APRSWXNET Belle Chasse LA US, Belle Chasse, LA

Updated: 11:29 AM CST

Temperature: 70 °F Dew Point: 64 °F Humidity: 81% Wind: SSE at 2 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: David Crockett Fire Co. No.1, Gretna, LA

Updated: 12:07 PM CST

Temperature: 72.8 °F Dew Point: 64 °F Humidity: 74% Wind: WSW at 2.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Plaquemines Parish HS/EP, Belle Chasse, LA

Updated: 11:59 AM CST

Temperature: 70.6 °F Dew Point: 65 °F Humidity: 81% Wind: South at 4.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: APRSWXNET New Orleans LA US, New Orleans, LA

Updated: 11:26 AM CST

Temperature: 73 °F Dew Point: 67 °F Humidity: 81% Wind: SSW at 2 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Gentilly Terrace, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 74.1 °F Dew Point: 66 °F Humidity: 75% Wind: South at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Flores Garden, Belle Chasse, LA

Updated: 12:07 PM CST

Temperature: 71.5 °F Dew Point: 64 °F Humidity: 78% Wind: SSW at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: gentilly terrace 6$, New Orleans, LA

Updated: 12:04 PM CST

Temperature: 74.5 °F Dew Point: 65 °F Humidity: 72% Wind: SSE at 4.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Harvey Canal, Harvey, LA

Updated: 12:07 PM CST

Temperature: 73.3 °F Dew Point: 65 °F Humidity: 76% Wind: South at 6.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Gretna / Terrytown 3S, Gretna, LA

Updated: 12:07 PM CST

Temperature: 74.0 °F Dew Point: 62 °F Humidity: 67% Wind: WSW at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: APRSWXNET New Orleans LA US, New Orleans, LA

Updated: 11:30 AM CST

Temperature: 76 °F Dew Point: 65 °F Humidity: 68% Wind: SE at 4 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: APRSWXNET Belle Chasse LA US, New Orleans, LA

Updated: 11:33 AM CST

Temperature: 70 °F Dew Point: 66 °F Humidity: 86% Wind: SE at 1 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Concession, Belle Chasse, LA

Updated: 12:06 PM CST

Temperature: 71.8 °F Dew Point: 66 °F Humidity: 81% Wind: SE at 3.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: SnoWizard - Magazine St, New Orleans, LA

Updated: 12:06 PM CST

Temperature: 72.9 °F Dew Point: 65 °F Humidity: 77% Wind: South at 2.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Barkley Estates, Harvey, LA

Updated: 12:02 PM CST

Temperature: 74.5 °F Dew Point: 65 °F Humidity: 73% Wind: South at 4.2 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Uptown/Carrollton, New Orleans, LA

Updated: 12:06 PM CST

Temperature: 74.3 °F Dew Point: 65 °F Humidity: 73% Wind: North at - Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Freret St above Brottworks, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 75.7 °F Dew Point: 66 °F Humidity: 71% Wind: NW at 5.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Prytania St Uptown, New Orleans, LA

Updated: 1:07 PM EST

Temperature: 69.8 °F Dew Point: 57 °F Humidity: 64% Wind: North at - Pressure: 29.83 in Hourly Precipitation: - Heat Index: - Graphs

Location: APRSWXNET Marrero LA US, Harvey, LA

Updated: 11:35 AM CST

Temperature: 74 °F Dew Point: 67 °F Humidity: 78% Wind: SW at 3 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Plantation Estates, Marrero, LA

Updated: 12:05 PM CST

Temperature: 73.5 °F Dew Point: 66 °F Humidity: 76% Wind: West at 2.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Esplanade Ridge, New Orleans, LA

Updated: 12:06 PM CST

Temperature: 73.9 °F Dew Point: 64 °F Humidity: 70% Wind: SE at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Lakeview, New Orleans, LA

Updated: 12:04 PM CST

Temperature: 72.7 °F Dew Point: 62 °F Humidity: 74% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Lakeview, New Orleans, LA

Updated: 12:06 PM CST

Temperature: 72.7 °F Dew Point: 64 °F Humidity: 74% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Lakeview East, New Orleans, LA

Updated: 11:53 AM CST

Temperature: 78.3 °F Dew Point: 66 °F Humidity: 65% Wind: SSW at 6.3 mph Pressure: 29.94 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Lakeview, NOLA, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 73.8 °F Dew Point: 65 °F Humidity: 75% Wind: South at 3.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Uptown, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 70.0 °F Dew Point: 69 °F Humidity: 97% Wind: SW at 4.5 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Audubon Station, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 75.3 °F Dew Point: 64 °F Humidity: 68% Wind: WNW at 4.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET New Orleans LA US, New Orleans, LA

Updated: 11:25 AM CST

Temperature: 74 °F Dew Point: 66 °F Humidity: 77% Wind: South at 1 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Audubon Park-Patton St., New Orleans, LA

Updated: 11:57 AM CST

Temperature: 75.1 °F Dew Point: 67 °F Humidity: 75% Wind: Calm Pressure: 29.96 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Lakewood, New Orleans, LA

Updated: 12:05 PM CST

Temperature: 72.0 °F Dew Point: 67 °F Humidity: 83% Wind: North at - Pressure: 30.07 in Hourly Precipitation: - Heat Index: 71 °F Graphs

Location: West Lakeshore, New Orleans, LA

Updated: 12:07 PM CST

Temperature: 73.4 °F Dew Point: 64 °F Humidity: 72% Wind: SE at 1.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Birdie Crossing - Old Metairie, Metairie, LA

Updated: 12:07 PM CST

Temperature: 74.7 °F Dew Point: 66 °F Humidity: 73% Wind: SE at 1.1 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Riverbend - SnoWizard, New Orleans, LA

Updated: 12:05 PM CST

Temperature: 71.5 °F Dew Point: 65 °F Humidity: 79% Wind: South at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service New Orleans la 
809 am CST sun Feb 1 2015 


..sounding discussion... 


Impressive moistening of the atmosphere has occurred over the 
central Gulf Coast the last 12 hours as the precipitable water has 
jumped up to 1.44 inches. The atmospheric column is saturated from 
3400 to 14400 feet. Temperatures in the lowest 2600 feet are higher 
/warmer/ on average by about 6 degrees celsius over this layer 
compared to yesterday at this time. The surface itself is 13 c 
higher /warmer/. 


There is not much in the way of instability with a lifted index 
of 5 and surface based and mixed layer cape calculated at 0 
currently. That said...there is wind shear--both direction and 
speed. Wind profile is typical of a warm advection regime 
/veering/. Winds are from the southeast at 0-20 knots near the 
surface rotating to the from the southwest at 20 increasing to 65 
knots in the middle-levels and from the west in the upper levels 
with a peak wind speed of 107 knots. 0-1 km srh is over 300 m2/s2 
and 0-3 km srh is nearing 400 m2/s2. Storm Prediction Center does have US in marginal 
risk for severe weather. There are limiting factors though today. 
There is only one main area of convergence...which will be along 
the cold front. Another limiting factor is the lack of sunshine 
and thereby instability. Forecast soundings show little if any 
instability developing. We will watch as the front approaches and 
monitor trends in cloud cover throughout the day for any possible 
severe weather. 


12z balloon info: this morning/S flight lasted 124 minutes and 
went 91 miles downrange before bursting at a height of 21 miles 
above the ground near Big Creek Lake Alabama just west of Mobile. 


Ansorge 


&& 


Previous discussion... /issued 417 am CST sun Feb 1 2015/ 


Short term...moisture has been increasing quickly along with lift 
over the area and thus after 6z the radar has become far more 
active. Very light rain has already occurred west of 55 and south of 10 
and this activity should continue to increase in coverage and 
intensity through the morning. 


Not much has changed in the forecast as we are still looking at multiple 
systems impacting the region over the next week. First one is 
already occurring and is characterized by two separate disturbances. 
The second system will be when the Baja California low finally lifts out across 
the region middle week. 


First today and tonight we will see num to widespread rain showers and even 
a few embedded tsra(mainly late this afternoon and this evng). As 
mentioned earlier activity has been increasing through the overnight 
hours as broad lift has increased over the region. First focused 
disturbance is a piece of energy that has detached from the Baja California low 
and at 8z was moving through southern and central Texas. This will quickly 
push through the lower MS valley this morning and likely be east of the 
area by 18z. Moisture has been increasing and will continue to do 
so. At the same time an 850 mb Theta-E ridge will be draped/moving 
across the southern/southeastern half of the County Warning Area through the morning. This will 
likely be where the greatest cov and intensity of rain will occur 
but by midday rain showers will likely taper off becoming more scattered possibly 
even isolated with the focus shifting to the northwestern half of the County Warning Area. 


This afternoon and evening the second and more significant features will 
impact the region. As mentioned the last few days a strong northern 
stream short wave will continue to dig southeast. At 8z this disturbance was 
moving through the High Plains and entering the Central Plains. At the 
same time a surface low was beginning to take shape over Kansas. The short wave 
will continue to work southeast through the day eventually into the upper 
portions of the lower MS valley tonight while the surface low will 
deepen and push east through the middle MS valley and into the Ohio 
Valley. A trailing cold front will sweep through the Southern Plains and 
into the lower MS valley pushing all the way into the Gulf well 
before 12z Monday. All of this will provide more than enough support 
for rain across the region with the greatest chance of seeing rain 
across the northern half of the County Warning Area. As for the chance of thunderstorms and rain...maybe 
even a strong one or two...the threat doesnt look great but it is 
non-zero. Overall instability will be greatly lacking...ll 
convergence will be weak with the exception of the cold front...and 
the better middle/upper level support will be Post frontal. That said middle 
level lapse rates arent too shabby at 6-6.5 c/km...0-6km bulk shear 
will be around 50-60 kts and there will be some middle level flow around 
50-60kts as well. This could provide enough support to get a few 
storms to overachieve providing a small risk of damaging winds. 
Again not overly impressed but the risk is non-zero. 


Rain will start to come to an end after midnight as the cold front 
sweeps through. Once it does much colder and drier air will surge 
into the area. H925 temperatures still look like they will drop to around 
0-3c. When this is mixed down to the surface it should yield temperatures in 
the middle 40s to lower 50s and that seems about right as both surface 
moisture from recent rain and breezy conditions will keep that super 
adiabatic surface/skin layer from developing. With temperatures that low during 
the day it will set the stage for a cold night. High pressure will 
continue to build into the region and settle right over the area Monday 
night/Tuesday morning. With that winds should decouple...even ll winds will 
be light. Dewpoints will be quiet low...possibly in the lower to middle 
20s...and skies should be clear. This should allow for morning lows Tuesday 
to range from the upper 20s in southwestern MS to middle upper 30s across 
coastal sela. The few things that could keep the region from cooling 
as much as forecast will be residual ground moisture from sun/sun nights 
rains along with weak warm air advection in the ll above the surface. /Cab/ 


Long term...medium range models continue to struggle with consistency 
and continuity. The GFS has now slowed up significantly from 
yesterdays 00z run and the European model (ecmwf) is now much faster. This is not 
boding well for confidence in the forecast. The Gem is right in the 
middle of the two and the gfes is in better agreement with the GFS 
timing wise. Overall confidence is low with respect to timing but 
high that we will get some decent rain sometime between Tuesday night and 
Thursday. With this uncertainty will stick with a blend of the models and 
not lean in favor of a specific model. 


The main protagonist will be the Baja California low ejecting out across the 
region. The questions are how fast does this occur and what actually 
kicks this low out of the Baja California. Looking across the Pacific large low 
just south of the Aleutians will continue to spin there through 
pretty much the entire forecast but there will be a lot of energy moving 
across the central Pacific trying to break down the ridge over the eastern Pacific 
just west of the Baja California low. This will take some time which is why the 
Baja California low will stay in place until Monday night. Typically this is a 
slow process and b/c of that I want to lean twrds the slower GFS but 
this is significantly slower than previous runs. In fact the GFS tries 
to keep much of the rain out of the area until late Wednesday. Even the 
Euro when it was the slowest model had rain through much of the day 
Wednesday. As mentioned earlier will go with a blend of the models. The Baja California 
low should move across Mexico and open up as it moves into Texas late 
Tuesday night/early Wednesday and across the Gulf Coast states Wednesday and Thursday. At 
the surface still looking for cyclogenesis in the northwestern Gulf with this 
low moving east across the northern Gulf and eventually into Florida late 
Thursday/early Friday. This will lead to num to widespread rain showers with light 
rain possibly as early as overnight Tuesday night. Bulk of the rain 
should occur Wednesday and/or Wednesday night. Not anticipating any thunderstorms and rain as we 
will be in the cold sector. 


Rain will come to and end Thursday/Thursday night with a strong northern stream short wave 
dropping across the region at the same time. This will drive a 
cooler and much drier airmass into the region for Friday and next 
weekend. /Cab/ 


Aviation...VFR conditions are still being observed this morning and 
we are still anticipating conditions to deteriorate this morning. 
Ceilings should be in the the MVFR to IFR categories and rain should 
spread across the area and occasionally restrict visibilities 
into the 2 to 3 mile range. A cold front will begin pushing across 
the region after 00z Monday. 13/mh 


Marine...exercise caution headlines will remain in effect through 
the middle morning hours as winds still will remain slightly elevated 
as a system moves to the north of the area. Winds will briefly relax 
Sunday afternoon as a cold front approaches. Behind the front cold 
air advection and high pressure will elevate winds into the Small 
Craft Advisory realm. A Small Craft Advisory should be issued at 
some point this morning for tonight into Monday morning. Surface 
high pressure will become centered closer to the area by Tuesday 
allowing winds and waves to ease a bit. High pressure will quickly 
slide east on Wednesday as a surface low develops and tracks through 
the northern Gulf. A stronger easterly flow will resume as a result 
on Wednesday. 13/mh 


Decision support... 
dss code...green. 
Deployed...none. 
Activation...none. 
Activities...slurry support 


Decision support services (dss) code legend 
green = no weather impacts that require action 
blue = long fused watch/warning/advisory in effect or high 
visibility event 
yellow = heightened impacts with short fused 
watch/warning/advisory issuances; radar support 
Orange = high impacts - slight to moderate risk severe; nearby 
tropical events; hazmat or other large episodes 
red = full engagement for moderate to high risk severe 
and/or direct tropical threats; events of National 
significance. 


&& 


Preliminary point temps/pops... 
mcb 69 37 46 28 / 80 80 10 0 
btr 72 39 48 31 / 80 70 0 0 
asd 71 43 50 32 / 60 70 10 0 
msy 73 45 50 37 / 60 70 10 0 
gpt 68 44 51 33 / 70 70 10 0 
pql 69 45 51 31 / 70 60 10 0 


&& 


Lix watches/warnings/advisories... 
la...none. 
GM...none. 
MS...none. 
GM...none. 
&& 


$$ 



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