Slidell, Louisiana Weather Conditions

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Current Conditions

  • 49°
  • Light Rain
  • Wind: NE 7 mph
  • Humidity: 90%
  • Visibility: 10.0 miles
  • Dew Point: 46°
  • Pressure: 30.08 in. +

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Chance of Rain
  • High: 63 °
  • Low: 46 °
  • Chance of Rain
  • Sunday
  • Chance of Rain
  • High: 64 °
  • Low: 50 °
  • Chance of Rain
  • Monday
  • Chance of Rain
  • High: 70 °
  • Low: 55 °
  • Chance of Rain
  • Tuesday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 43 °
  • Chance of T-Storms
  • Wednesday
  • Clear
  • High: 57 °
  • Low: 41 °
  • Clear

Forecast for Slidell, Louisiana

Updated: 9:00 PM CST on December 19, 2014

  • Friday

    Overcast with a chance of a thunderstorm and rain showers. High of 64F. Winds from the ENE at 5 to 10 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.

  • Friday Night

    Overcast with rain showers. Fog overnight. Low of 45F. Winds from the ENE at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 0.8 in. possible.

  • Saturday

    Overcast with a chance of rain. High of 63F. Winds from the NNE at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Overcast. Fog overnight. Low of 46F. Winds from the NNE at 5 to 10 mph.

  • Sunday

    Overcast with a chance of rain. High of 64F. Winds from the NE at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 50F. Winds less than 5 mph. Chance of rain 30%.

  • Monday

    Partly cloudy with a chance of rain in the morning, then overcast with a chance of rain. High of 70F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of rain in the evening, then mostly cloudy. Fog overnight. Low of 55F. Winds from the South at 5 to 10 mph.

  • Tuesday

    Overcast with a chance of a thunderstorm and rain in the afternoon. Fog early. High of 72F. Winds from the WSW at 5 to 20 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy. Low of 43F. Breezy. Winds from the WNW at 15 to 20 mph.

  • Wednesday

    Clear. High of 57F. Breezy. Winds from the WNW at 15 to 20 mph.

  • Wednesday Night

    Clear. Low of 41F. Winds from the WSW at 5 to 10 mph.

  • Thursday

    Clear. High of 63F. Winds from the SSW at 5 to 15 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 48F. Winds from the SSW at 10 to 15 mph.

  • Friday

    Mostly cloudy. Fog early. High of 77F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 46F. Winds less than 5 mph.

  • Saturday

    Overcast. Fog early. High of 61F. Winds less than 5 mph.

  • Saturday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 48F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday

    Overcast. High of 55F. Winds less than 5 mph.

  • Sunday Night

    Mostly cloudy. Low of 46F. Winds less than 5 mph.

  • Monday

    Mostly cloudy. High of 54F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 46F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 04:21 PM CST on December 19, 2014


... Record daily maximum rainfall set at Baton Rouge ASOS...

a record rainfall of 1.73 inch(es) was set at Baton Rouge ASOS
today. This breaks the old record of 1.54 set in 1956. Rain is still
falling in Baton Rouge. This message will be updated after midnight
when the total for the day becomes final.



 Public Information Statement  Statement as of 1:49 PM CST on December 19, 2014


... NOAA Weather Radio in Baton Rouge is down...

NOAA Weather Radio transmitter in Baton Rouge /khb-46/ is down
this afternoon. Technicians have been called to properly diagnose and
fix the issue. We apologize for any inconvenience this may cause
and service will be returned to service as soon as possible.

Ansorge



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Michigan Ave. The Roy's, Slidell, LA

Updated: 7:31 PM CST

Temperature: 48.4 °F Dew Point: 47 °F Humidity: 96% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Slidell, LA

Updated: 7:21 PM CST

Temperature: 48.5 °F Dew Point: 48 °F Humidity: 98% Wind: NE at 5.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Oak Harbor, K4QAL, Slidell, LA

Updated: 7:30 PM CST

Temperature: 48.6 °F Dew Point: 47 °F Humidity: 95% Wind: ENE at 5.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Eden Isles, Slidell, LA

Updated: 8:31 PM EST

Temperature: 49.3 °F Dew Point: 48 °F Humidity: 96% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.01 in Windchill: 49 °F Graphs

Location: Timber Ridge, Slidell, LA

Updated: 7:31 PM CST

Temperature: 49.8 °F Dew Point: 46 °F Humidity: 88% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Bayou Liberty, Slidell, LA

Updated: 7:24 PM CST

Temperature: 49.0 °F Dew Point: 47 °F Humidity: 93% Wind: Calm Pressure: 30.10 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: Tammany Yacht Club, Slidell, LA

Updated: 6:31 PM MST

Temperature: 49.1 °F Dew Point: 48 °F Humidity: 95% Wind: NE at 10.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Circle O Acres, Slidell, LA

Updated: 7:31 PM CST

Temperature: 48.6 °F Dew Point: 47 °F Humidity: 93% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: LAKEVIEW DR., Slidell, LA

Updated: 7:22 PM CST

Temperature: 48.5 °F Dew Point: 48 °F Humidity: 99% Wind: NNE at 5.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Pearl River Town, Pearl River, LA

Updated: 7:19 PM CST

Temperature: 48.0 °F Dew Point: 46 °F Humidity: 91% Wind: West at 3.2 mph Pressure: 29.80 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: RAWS SELA PORTABLE LA US, Lacombe, LA

Updated: 6:34 PM CST

Temperature: 48 °F Dew Point: 48 °F Humidity: 100% Wind: NNW at 3 mph Pressure: - Hourly Precipitation: 0.01 in Windchill: 48 °F Graphs

Location: Oak Mill, Lacombe, LA

Updated: 7:31 PM CST

Temperature: 48.0 °F Dew Point: 47 °F Humidity: 97% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Pearl Hickory, Pearl River, LA

Updated: 7:20 PM CST

Temperature: 47.8 °F Dew Point: 48 °F Humidity: 99% Wind: SSE at 4.2 mph Pressure: 29.83 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: RAWS BIG BRANCH NWR LA US, Lacombe, LA

Updated: 6:47 PM CST

Temperature: 48 °F Dew Point: 47 °F Humidity: 98% Wind: NE at 5 mph Pressure: - Hourly Precipitation: 0.01 in Windchill: 46 °F Graphs

Location: Hickory, Pearl River, LA

Updated: 7:28 PM CST

Temperature: 49.3 °F Dew Point: 33 °F Humidity: 54% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.02 in Windchill: 49 °F Graphs

Location: B and L's in Forest Glen, Lacombe, LA

Updated: 3:44 PM CST

Temperature: 26.1 °F Dew Point: 24 °F Humidity: 93% Wind: North at 5.4 mph Pressure: 30.22 in Hourly Precipitation: 0.15 in Windchill: 20 °F Graphs

Location: Bayou Acres, Mandeville, LA

Updated: 7:20 PM CST

Temperature: 47.7 °F Dew Point: 47 °F Humidity: 99% Wind: NNE at 1.7 mph Pressure: 30.12 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: The Timbers, Mandeville, LA

Updated: 7:29 PM CST

Temperature: 47.5 °F Dew Point: 47 °F Humidity: 99% Wind: NNE at 1.6 mph Pressure: 30.09 in Hourly Precipitation: 0.06 in Windchill: 48 °F Graphs

Location: Soult Street/Molitor Street, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 48.0 °F Dew Point: 48 °F Humidity: 100% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.13 in Windchill: 48 °F Graphs

Location: Woodlands, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 47.3 °F Dew Point: 47 °F Humidity: 99% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.14 in Windchill: 47 °F Graphs

Location: Tanager Drive, Mandeville, LA

Updated: 7:30 PM CST

Temperature: 49.5 °F Dew Point: 49 °F Humidity: 97% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 7:29 PM CST

Temperature: 47.6 °F Dew Point: 47 °F Humidity: 97% Wind: North at 4.0 mph Pressure: 30.12 in Hourly Precipitation: 0.16 in Windchill: 46 °F Graphs

Location: Deval Estates, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 48.0 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.14 in Windchill: 48 °F Graphs

Location: Old Mandeville, Mandeville, LA

Updated: 7:21 PM CST

Temperature: 47.7 °F Dew Point: 47 °F Humidity: 99% Wind: Calm Pressure: 29.96 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: SHARP ROAD, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 47.8 °F Dew Point: 47 °F Humidity: 97% Wind: NE at 2.9 mph Pressure: 30.11 in Hourly Precipitation: 0.08 in Windchill: 48 °F Graphs

Location: Mandeville, Mandeville, LA

Updated: 7:25 PM CST

Temperature: 47.0 °F Dew Point: 46 °F Humidity: 97% Wind: Calm Pressure: 30.10 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Magnolia Ridge Drive, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 49.1 °F Dew Point: 49 °F Humidity: 98% Wind: North at - Pressure: 30.15 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: APRSWXNET Picayune MS US, Talisheek, LA

Updated: 6:59 PM CST

Temperature: 47 °F Dew Point: 46 °F Humidity: 98% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: Pittari Lane, Carriere, MS

Updated: 7:24 PM CST

Temperature: 46.9 °F Dew Point: 45 °F Humidity: 93% Wind: NNE at 6.3 mph Pressure: 29.81 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: Chateau Village Subdivision, Mandeville, LA

Updated: 7:31 PM CST

Temperature: 48.0 °F Dew Point: 48 °F Humidity: 99% Wind: NNE at 2.5 mph Pressure: 29.96 in Hourly Precipitation: 0.07 in Windchill: 48 °F Graphs

Location: Round Rock, Picayune, MS

Updated: 7:18 PM CST

Temperature: 47.1 °F Dew Point: 47 °F Humidity: 99% Wind: ESE at 1.1 mph Pressure: 29.88 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Covington / Abita Springs, Covington, LA

Updated: 7:31 PM CST

Temperature: 47.5 °F Dew Point: 46 °F Humidity: 96% Wind: NE at 2.0 mph Pressure: 30.18 in Hourly Precipitation: 0.06 in Windchill: 48 °F Graphs

Location: Shoreline Park, Bay St. Louis, MS

Updated: 7:31 PM CST

Temperature: 49.1 °F Dew Point: - Humidity: - Wind: ENE at 3.0 mph Pressure: 30.10 in Hourly Precipitation: 0.01 in Windchill: 49 °F Graphs

Location: Hide_A_Way Lake ~OWX, Carriere, MS

Updated: 7:31 PM CST

Temperature: 46.8 °F Dew Point: 45 °F Humidity: 93% Wind: ENE at 2.0 mph Pressure: 30.05 in Hourly Precipitation: 0.01 in Windchill: 47 °F Graphs

Location: RAWS HANCOCK MS US, Kiln, MS

Updated: 6:09 PM CST

Temperature: 47 °F Dew Point: 46 °F Humidity: 98% Wind: NE at 6 mph Pressure: - Hourly Precipitation: 0.07 in Windchill: 44 °F Graphs

Location: Deer Run Gang, Picayune, MS

Updated: 7:18 PM CST

Temperature: 46.9 °F Dew Point: 47 °F Humidity: 99% Wind: ENE at 2.2 mph Pressure: 30.02 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Covington, Covington, LA

Updated: 7:26 PM CST

Temperature: 47.5 °F Dew Point: 47 °F Humidity: 99% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Joe's Redneck Weather, Waveland, MS

Updated: 7:31 PM CST

Temperature: 48.7 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Sadie's Weather on Jeff Davis, Waveland, MS

Updated: 7:31 PM CST

Temperature: 48.0 °F Dew Point: 46 °F Humidity: 94% Wind: NE at 2.2 mph Pressure: 30.00 in Hourly Precipitation: 0.01 in Windchill: 48 °F Graphs

Location: Diamondhead, Diamondhead, MS

Updated: 7:31 PM CST

Temperature: 47.7 °F Dew Point: 47 °F Humidity: 99% Wind: NE at 3.1 mph Pressure: 28.80 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Diamondhead, Diamondhead, MS

Updated: 7:22 PM CST

Temperature: 47.8 °F Dew Point: 47 °F Humidity: 98% Wind: SSE at 1.6 mph Pressure: 30.00 in Hourly Precipitation: - Windchill: 48 °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 
721 PM CST Friday Dec 19 2014 


Sounding discussion... 


00z flight terminated about 4 miles south of Mobile regional 
Airport at an altitude of 103.3k feet...or 19.6 miles up. 


Sounding is rather similar to the 12z flight...with the 
precipitable water value 1.47 inches which is about 170 percent of 
the climatological normal for today. With very minor 
exceptions...the sounding is saturated from the surface up to 
almost 350 mb. Inversions near 1500 and 2800 feet. Northeast winds 
were observed from the surface to about 970 mb...then quickly 
become southwest to west by 900 mb...and remained there through 
100 mb. Peak wind of 103 knots at about 210 mb...or about 38k 
feet. Freezing level at 11.1k feet...and -20c level at 22.5k feet. 35 


&& 


Previous discussion... /issued 404 PM CST Friday Dec 19 2014/ 


Synopsis... 
active weather pattern will continue through much of the period 
with three different disturbances impacting the area. Best 
chances of rain will be in the first 12 hours or so as the first 
disturbance moves through the area. Next disturbance passes by on 
Sunday with a final clearing front passing through the area some 
time Tuesday. 


Short term... 
weak surface low will continue to move slowly toward and through 
the area this evening and tonight resulting in continued 
widespread showers across the area. Rainfall totals across the 
region so far range from just under half an inch across much of 
the South Shore to over 2 inches at New Roads. Most of the 
observation sites north of the I-10/12 corridor have recorded at 
least an inch of rain so far. Have kept probability of precipitation pretty high for the 
first part of tonight...in the 70 to 90 percent range. With little 
to no lightning observed today...will keep thunder out of the 
forecast for tonight...though can/T rule out one or two 
thunderstorms near the coast as the low passes by. Storm total 
rainfall is still expected to be in the 1 to 3 inch range for most 
places. Though we could still see a few brief periods of heavier 
rainfall...rain is generally expected to be light to moderate in 
nature and shouldn/T cause any problems. In fact...the steadier 
light to moderate rain should be quite beneficial and could help 
ease some of the drought conditions in the short term. 


The low is expected to elongate and weaken as it moves past the 
mouth of the river with a weak frontal boundary stalling over the 
northern Gulf as the driving upper short wave flattens out and flow 
becomes parallel to the boundary. What this means in sensible 
terms is that we can expect continued cloudiness and at least some 
chance of lingering light showers through the weekend. 


On Sunday...the stalled boundary will begin to lift northward as 
a warm front in response to an approaching fast moving upper short 
wave. This will bring isolated to scattered showers to areas near 
the coast. Am generally carrying a gradient from 10 to 20 percent 
across far northwestern zones to 20 to 30 percent near the coast 
and around 40 percent over the Gulf waters. With unstable air 
still shunted south over the Gulf...not expecting any thunder with 
this activity. Rain chances will increase slightly Sunday night as 
the shortwave actually passes through the area...but still no 
thunder expected...and rain totals should generally be light. 


Long term... 
going into next week...our next decent chance of rain will be on 
Tuesday as a cold front passes through the area...though rain 
chances never really go away following Sunday night/S short wave. 
The different models all agree that an upper trough will begin to 
dig southward over The Rockies Sunday. The trough will continue to 
deepen as it moves over the plains states. This trough will force 
a cold front through the area most likely some time on Tuesday. 
This is where the forecast gets fun as the timing and strength of 
this front will have significant impacts on the temperature 
forecast for Tuesday afternoon. To give you an idea of how out of 
whack the different possibilities are concerning the finer details 
of this system...there is a full 20 degree spread between the high 
and low members of the GFS ensemble for the high temperature at 
McComb on Tuesday...the low member carrying a temperature of 50 
degrees and the high member 70 degrees. The Euro ensemble has a 
comparatively respectable spread of only 16 degrees for the same 
time frame and location. Needless to say...there is potential for 
the temperature forecast on Tuesday to be very wrong. In an 
attempt to avoid the windshield wiper effect...am generally 
carrying temperatures that are a few degrees higher than a blend 
of the ensemble means as a nod to the higher operational numbers. 
Hopefully this will allow for smaller forecast adjustments moving 
forward as the timing and strength becomes more clear. 


Have also gone ahead and added thunder into the forecast for 
Tuesday as the front comes through. There should be some decent 
onshore flow ahead of the front...bringing warmer and more humid 
air into the area from the Gulf of Mexico. Looks like dewpoints 
could be approaching 60 degrees...which is well above normal for 
this time of year...by the time the front gets here. Model 
forecast soundings indicate anywhere from 400 to 1000 j/kg of 
cape across land areas with decent lift along the front. This 
should be enough to support scattered thunderstorms along/ahead of 
the front. 


This front will clear the area with cool and dry high pressure 
building in behind it. Still looks like we should see mostly 
clear skies with temperatures near or below normal for Christmas 
evening and Christmas day. 


Aviation... 
main forecast problem and lack of confidence is regarding the 
timing of the lower LIFR category ceilings and IFR visibilities that will 
mainly be associated with the more persistent and heavier rain showers and 
isolated thunderstorms and rain. Have tried to time this in the short term with 
observations...radar trends...and WRF/hrrr models. Overall... 
conditions will trend towards IFR and LIFR through early Saturday 
morning with slow improvement expected later Saturday morning as 
the rain should mostly end from west to east. 


Marine... 
low pressure off the Texas coast will move east and weaken to an 
open wave as it moves south of the central Gulf Coast late tonight 
and Saturday morning. Stronger winds near to above 20 knots over the 
east/southeast coastal waters are expected to diminish to near 15 
knots during the evening. Will carry a /small craft exercise 
caution/ headline in the offshore eastern coastal waters through 9 
PM. Winds and seas will ease in most location late tonight into 
Saturday morning...then high pressure and cooler air will build in 
from the north on Saturday resulting in northeast winds rising back 
to around 15 knots in the afternoon and evening. High pressure will 
shift east and the pressure gradient will weaken on Sunday into 
Monday...so this will be a period of lighter winds and smaller 
waves. A strong upper level trough and associated cold front are 
expected to move through the coastal waters Tuesday. This will bring 
a period of strong Small Craft Advisory conditions by Tuesday 
afternoon into Wednesday...and gusts to gale force may occur. 


Decision support... 
dss code...blue. 
Deployed...none. 
Activation...none. 
Activities...slurry support 
city of New Orleans dss 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 43 57 42 60 / 90 20 10 10 
btr 44 58 45 61 / 80 20 10 20 
asd 45 58 45 61 / 80 40 10 20 
msy 50 57 51 61 / 70 30 10 30 
gpt 46 57 47 61 / 70 40 10 30 
pql 42 59 48 62 / 70 50 10 30 


&& 


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


$$ 



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