Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Thursday
• 
• High: 90 °
• Low: 75 °
• Partly Cloudy

• Friday
• 
• High: 90 °
• Low: 72 °
• Thunderstorm

• Saturday
• 
• High: 86 °
• Low: 72 °
• Partly Cloudy

• Sunday
• 
• High: 86 °
• Low: 73 °
• Partly Cloudy

• Monday
• 
• High: 88 °
• Low: 72 °
• Clear

Area forecast discussion...updated 
National Weather Service New Orleans la 
1100 am CDT Thursday may 23 2013 


Update... 
stratus and patchy fog has burned off...so the hourly temperature 
and humidity values should start to fall in line with earlier 
forecasts. 12z lix sounding is supportive of isolated afternoon 
and evening showers and thunderstorms. Some of the storms could 
produce gusty winds and frequent lightning...however the risk of 
wet microbursts /strong to severe wind gusts/ today is low. 22/dew point 


&& 


Previous discussion... /issued 350 am CDT Thursday may 23 2013/ 


Discussion... 
upper trough situated over the Great Lakes and middle Mississippi 
Valley early this morning will shift east today and be reinforced 
over the eastern U.S. Friday by another upper trough over eastern 
Canada. This system will push a backdoor cold front across the 
area Friday which will provide for a delightful late may weekend 
featuring cooler nights and very comfortable humidity levels. 
Prior to this frontal passage however...somewhat humid conditions 
will persist today along with small rain chances in a few areas. 
Some drier air in the middle and upper levels has worked its way into 
the region which will inhibit convection...however daytime heating 
may result in a few showers and thunderstorms this afternoon over 
the southern and western most sections of the forecast area where 
the best and deepest moisture will most likely reside. Isolated 
convection will again be in the offing tonight and again for at 
least part of the day Friday as the aforementioned cold front 
approaches and then advances across the region. 


Ridging at all levels and dry air will prevail across the central 
Gulf Coast region over the weekend. The upper level ridge will 
weaken early next work week before building again toward middle week 
in response to the evolution of an upper trough over the western 
Continental U.S.. some moisture return by middle week could yield very isolated 
convection. 11 


Aviation... 
currently...all forecast terminals VFR with the exception of khum 
which is reporting IFR conditions. Low cloud curves are showing 
development of stratus and fog over portions of the area south of 
Lake Pontchartrain...and expect this trend to continue and spread 
northward through 12z. MVFR to IFR conditions likely at all 
terminals for several hours through 15z before returning to VFR 
conditions for the remainder of the day. 


With the weak pressure gradient expected to remain in place for 
about another 24 hours...low cloud/fog development expected to 
return early Friday morning. 35 


Marine... 
weak pressure gradient has led to a light wind field across the 
coastal waters this morning...and this will remain in place for 
24-36 hours until high pressure bridges into the area from the 
north. This will bring offshore northeasterly flow to the area on 
Friday...with a reinforcing surge late Friday night or Saturday 
morning. Will probably need headlines in the eastern waters Friday 
night or Saturday morning...but should remain below advisory level. 
Onshore flow returns Saturday night and Sunday...with southeast 
winds expected Sunday morning through the end of the forecast 
period. Pressure gradient may tighten enough by middle week next week 
to necessitate headlines again...mainly in the western waters. 35 


Decision support... 
dss code...blue. 
Deployed...none. 
Activation...none. 
Activities...slurry support. 
Monitoring river flooding. 




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 89 65 87 58 / 10 20 10 10 
btr 90 69 89 63 / 10 20 20 10 
asd 89 68 89 61 / 10 20 10 10 
msy 88 72 89 67 / 10 10 20 10 
gpt 87 69 89 60 / 10 20 10 10 
pql 89 66 88 58 / 10 20 10 10 


&& 


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


$$