Mandeville, Louisiana Weather Conditions

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Current Conditions

  • 89°
  • Scattered Clouds
  • Wind: Variable 4 mph
  • Humidity: 65%
  • Visibility: 10.0 miles
  • Dew Point: 76°
  • Pressure: 30.08 in. +
  • Heat Index: 100

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Next 12 Hours

12  pm
3  pm
6  pm
9  pm
12  am
Mostly Cloudy
Mostly Cloudy
Chance of a Thunderstorm
Chance of T-storms
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
89°
90°
86°
79°
77°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 89 °
  • Low: 72 °
  • Chance of T-Storms
  • Thursday
  • Partly Cloudy
  • High: 92 °
  • Low: 73 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 93 °
  • Low: 73 °
  • Clear
  • Saturday
  • Chance of a Thunderstorm
  • High: 94 °
  • Low: 73 °
  • Chance of T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 72 °
  • Chance of T-Storms

Forecast for Mandeville, Louisiana

Updated: 3:21 am CDT on September 2, 2015

  • Today

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the lower 90s. Southwest winds to 5 mph shifting to the southeast in the afternoon.

  • Tonight

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s. South winds to 10 mph shifting to the west after midnight.

  • Thursday

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the lower 90s. Northeast winds 5 to 10 mph shifting to the southeast in the afternoon.

  • Thursday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s. South winds 5 to 10 mph shifting to the west after midnight.

  • Friday

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the lower 90s. Northwest winds to 5 mph shifting to the south in the afternoon.

  • Friday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s.

  • Saturday

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the lower 90s.

  • Saturday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s.

  • Sunday

    Partly cloudy with a 50 percent chance of showers and thunderstorms. Highs around 90.

  • Sunday Night and Labor Day

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the lower 70s. Highs around 90.

  • Monday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s.

  • Tuesday

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s.

Severe Weather Alert Descriptions

 Public Information Statement  Statement as of 11:35 am CDT on September 2, 2015


... Weekly all hazards radio test postponed until tomorrow...

The weekly NOAA all hazards radio test has been postponed until
tomorrow around 1100 am CDT due to active weather and a warning
that was in effect late this morning.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: The Timbers, Mandeville, LA

Updated: 11:53 AM CDT

Temperature: 87.3 °F Dew Point: 75 °F Humidity: 68% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Tanager Drive, Mandeville, LA

Updated: 11:50 AM CDT

Temperature: 86.7 °F Dew Point: 78 °F Humidity: 74% Wind: North at - Pressure: 30.03 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 11:54 AM CDT

Temperature: 86.5 °F Dew Point: 72 °F Humidity: 61% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 11:41 AM CDT

Temperature: 88.5 °F Dew Point: 79 °F Humidity: 73% Wind: Calm Pressure: 30.07 in Hourly Precipitation: - Heat Index: 103 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 11:51 AM CDT

Temperature: 86.2 °F Dew Point: 72 °F Humidity: 63% Wind: North at 1.1 mph Pressure: 29.97 in Hourly Precipitation: - Heat Index: 93 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 11:54 AM CDT

Temperature: 86.4 °F Dew Point: 75 °F Humidity: 69% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Morningside Drive, Mandeville, LA

Updated: 11:50 AM CDT

Temperature: 84.2 °F Dew Point: 75 °F Humidity: 74% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 11:54 AM CDT

Temperature: 86.0 °F Dew Point: 75 °F Humidity: 70% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Magnolia Ridge Drive, Mandeville, LA

Updated: 11:50 AM CDT

Temperature: 86.7 °F Dew Point: 77 °F Humidity: 73% Wind: North at - Pressure: 30.13 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 11:50 AM CDT

Temperature: 85.0 °F Dew Point: - Humidity: - Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: - Graphs

Location: Chateau Village Subdivision, Mandeville, LA

Updated: 11:54 AM CDT

Temperature: 87.1 °F Dew Point: 75 °F Humidity: 68% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Estates of Northpark, Covington, LA

Updated: 11:42 AM CDT

Temperature: 88.8 °F Dew Point: 75 °F Humidity: 63% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Covington / Abita Springs, Covington, LA

Updated: 11:54 AM CDT

Temperature: 85.3 °F Dew Point: 73 °F Humidity: 67% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Covington, Covington, LA

Updated: 11:49 AM CDT

Temperature: 87.6 °F Dew Point: 75 °F Humidity: 67% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: Milloit Lane, Madisonville, LA

Updated: 11:51 AM CDT

Temperature: 89.6 °F Dew Point: 81 °F Humidity: 75% Wind: North at - Pressure: 30.06 in Hourly Precipitation: - Heat Index: 108 °F Graphs

Location: Covington near Terra Bella Village, Covington, LA

Updated: 11:54 AM CDT

Temperature: 88.1 °F Dew Point: 76 °F Humidity: 67% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Abita Springs, Omega Centauri Observatory, Abita Springs, LA

Updated: 11:54 AM CDT

Temperature: 87.4 °F Dew Point: 74 °F Humidity: 65% Wind: SSW at 1.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: River Forest, Covington, LA

Updated: 12:54 PM EDT

Temperature: 90.9 °F Dew Point: 70 °F Humidity: 51% Wind: Calm Pressure: 29.94 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Port Louis, Madisonville, LA

Updated: 11:54 AM CDT

Temperature: 85.9 °F Dew Point: 76 °F Humidity: 72% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: River Forest, Covington, LA

Updated: 11:54 AM CDT

Temperature: 85.6 °F Dew Point: 73 °F Humidity: 67% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: NorthPointe Business Park, Covington, LA

Updated: 11:43 AM CDT

Temperature: 87.1 °F Dew Point: 76 °F Humidity: 70% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Willow Bend, Madisonville, LA

Updated: 11:54 AM CDT

Temperature: 86.4 °F Dew Point: 72 °F Humidity: 63% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Windermere Subdivision, Madisonville, LA

Updated: 11:54 AM CDT

Temperature: 84.9 °F Dew Point: 75 °F Humidity: 73% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 11:53 AM CDT

Temperature: 87.4 °F Dew Point: 75 °F Humidity: 67% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 11:44 AM CDT

Temperature: 88.9 °F Dew Point: 74 °F Humidity: 62% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: APRSWXNET, Slidell, LA

Updated: 11:39 AM CDT

Temperature: 86 °F Dew Point: 72 °F Humidity: 63% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 11:50 AM CDT

Temperature: 89.8 °F Dew Point: 76 °F Humidity: 65% Wind: NW at 2.2 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: Slidell, LA

Updated: 11:53 AM CDT

Temperature: 87.5 °F Dew Point: 76 °F Humidity: 69% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Hunt Compound, Ponchatoula, LA

Updated: 11:54 AM CDT

Temperature: 86.5 °F Dew Point: 76 °F Humidity: 71% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 11:53 AM CDT

Temperature: 84.3 °F Dew Point: 76 °F Humidity: 77% Wind: SSE at 2.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 94 °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 
942 am CDT Wednesday Sep 2 2015 


Sounding discussion... 
trends over last 24 hours through 12z this morning has shown top 
down moistening with a very moist profile from about 650 mb/12.5 
kft up to the tropopause. A mostly southeast low level flow only 
has higher relative humidity up to just below 950 mb/1900 
feet...then there is a persistent dry layer that would inhibit 
deep convection from 950 mb to 650 mb. This dry layer will be 
shrinking however as cumulus bases/convective cloud heights rise 
with daytime heating. Precipitable water has increased from just 
below 1.25 inches yesterday morning to near 1.7 inches this 
morning...and instability is slightly higher with mu parcel cape 
at 2945 j/kg. The convective temperatures is 90 degrees. Deep 
layer wind profile is also more supportive of maintaining deeper 
moisture content with wind direction veering from southeast to 
south to southwest all the way up to the tropopause. 


The GFS appears to be underestimating the amount of 
instability...so the standing forecast that favors higher rain 
chances should work out at least south and west of Lake 
Pontchartrain...however residual drier air over eastern/northern 
portions of the forecast area may keep coverage of showers more 
isolated. 22/dew point 


&& 


Previous discussion... /issued 402 am CDT Wednesday Sep 2 2015/ 


Short term... 
there are a few showers on the scope this morning over the western 
portions of the County Warning Area. Some light rain is possible across the Baton 
Rouge metropolitan area this morning as an feature along the Texas/la coast 
spreads some rainfall across southeast Texas and SW Louisiana. This 
feature is very apparent in the water vapor imagery and this will 
be the main player in the weather for today. This should be the 
trigger for some isolated showers and thunderstorms this afternoon 
as the heating of the day should help with development. Will carry 
slight chance to chance probability of precipitation this afternoon...depending on the 
coverage this may have to be bumped up some. Otherwise 
temperatures today should climb into the 90s if full sunshine is 
realized. Will have to possibly make adjustments to the 
temperature forecasts as the day GOES on. 13/mh 


Long term... 
overall not much change in forecast thinking as generally upper 
level trough sticks around through most of the period. With 
increasing moisture and daytime heating expect a daily chance of 
showers and thunderstorms. At night convection should be mainly 
over the coastal waters. This should continue through the weekend 
and into early next week. Temperatures should be seasonal with 
highs in the upper 80s and lower 90s. Lows should be in the middle to 
low 70s. 13/mh 


Aviation... 
expect scattered cumulus field across the area with bases fl035- 
fl040. Anticipate VFR conditions for much of the period. Could see 
some MVFR visibilities around sunrise for a few hours at khum...kmcb 
and khdc. Any convective threat today likely to be after 18z. May 
see a few ts near the coast but at any particular terminal will be 
low. 


Marine... 
relatively benign conditions for the next several days with a weak 
pressure pattern controlling the weather. Winds generally less than 
10 knots with seas 2 feet or less. Scattered convection possible 
just about every day of forecast. This activity may produce wind 
gusts to 30 knots or better at times as it moves out of the Gulf. 


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


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 risk severe and/or direct 
tropical threats; events of National significance 


&& 


Preliminary point temps/pops... 
mcb 92 72 94 71 / 30 10 30 10 
btr 93 73 93 73 / 30 10 30 10 
asd 92 74 93 73 / 30 20 30 20 
msy 91 77 91 76 / 30 20 40 20 
gpt 90 76 90 74 / 30 20 30 20 
pql 91 74 90 73 / 30 20 30 20 


&& 


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


$$ 



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