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Orleans Parish, LA Weather and Climate Synopsis

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A joint service of the UK Ag Weather Center and the National Weather Service.


National Weather Service Shreveport LA
231 PM CDT Fri Apr 26 2024

...New SHORT TERM, LONG TERM...

.SHORT TERM...
(This evening through Saturday Night)
Issued at 146 PM CDT Fri Apr 26 2024

A very complicated short-term is unfolding across the region,
including the threat of severe weather and flash flooding. After
reviewing the morning suite of 12z guidance, and collaborating
with the SPC, it was decided to upgrade the existing Slight Risk
into an Enhanced Risk. The biggest factor in this were some
remnant outflow boundaries that were expected to enhance
convection across the region under peak daytime heating. From
there, additional collaboration was done with the WPC regarding
QPF amounts for this afternoon, and into the overnight hours.
Overnight QPF amounts were underdone, given the fact that
afternoon convection is likely to train through the evening hours.
Total rainfall amounts were adjusted up the next 24-hours to
account for that. One thing to note regarding this, while we are
not anticipating widespread flooding or flash flooding with this
rain, it will greatly shrink the tolerance we have for the 
additional rainfall through the weekend. In turn, depending on
rainfall amounts through tonight, a Flood Watch will likely be
considered as early as tomorrow for the extra rainfall anticipated
on Sunday.  

The severe weather threat should diminish once the sun sets, with
rain chances beginning to pivot north. This will allow for a
portion of the region to dry out through the day on Saturday, 
before the next round of weather moves in to the long-term. 

/44/

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.

Hourly Observations For ORLEANS Parish
200 PM CDT FRI JUL 28 2023

SOUTHEAST LOUISIANA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
N.O. INTL ARPT MOSUNNY   90  74  59 N6        30.08F HX  99           
N.O. LAKEFRONT SUNNY     93  75  55 N7        30.09F HX 104           
N.O. DOWNTOWN* NOT AVBL                                               
RESERVE*       FAIR      90  73  58 E6        30.09F HX  98           
SLIDELL        CLOUDY    93  75  55 E5        30.08F HX 104           
BATON ROUGE    MOSUNNY   95  69  42 VRB3      30.07F HX 100           
BOOTHVILLE       N/A    -35  32 100 NE3       30.11F                  
BELLE CHASSE   MOSUNNY   93  72  50 S7        30.08F HX 101           
BOGALUSA*      FAIR      94  72  49 S3        30.10F HX 102           
GALLIANO*      NOT AVBL                                               
NEW ROADS*     FAIR      92  70  48 SE7       30.09F HX  98           
GONZALES*      FAIR      94  63  35 E5        30.08F HX  95           
HAMMOND*       SUNNY     94  68  42 SE9       30.09F HX  98           
HOUMA*         MOSUNNY   93  72  49 E5        30.10F HX 100           
PORT FOURCHON* NOT AVBL                                               

Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel


Current Agricultural Weather Conditions in Louisiana
Based on observations at 900pm CDT, Friday April 26, 2024

Across Louisiana...temperatures are near 77 degrees south. Current sky condition is cloudy south. In the south, relative humidity is near 79%, and the dew point is near 70 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the southeast at 20 mph with gusts at 30 mph in the south, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 77 degrees at New Orleans Lakefront, N.O. INTL ARPT, and Baton Rouge. The lowest temperature is 76 degrees at Slidell.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this Parish will these
forecasts be issued. Currently, there is no short term forecast in effect.

All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For ORLEANS County
Hazardous report currently not available
NWS Severe Weather Map , Convective Outlook

Current FORECAST not available 12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2
ORLEANS County, Louisiana Agriculture, Lawn & Garden Weather Advisory

Current Weather Advisory is NOT available

Ag. Weather Forecast Parameter Maps:Spraying Conditions , Dewpoint Temperatures, Livestock Heat Stress

Medium & Long Range Outlook For Louisiana

                            LOUISIANA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                 MAY 2-MAY 6 MAY 4-MAY 10    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above                                            
 Precipitation:     Normal       Normal                                            

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Almanac Information

Friday April 26, 2024 the 117th Day of Year

---------------------------------------------------
SUN
Declination 14.010000
Distance 0.999718 AU
Rise 07:26 EDT Set 20:45 EDT
Transit Meridian 14:05 EDT
Civil Twilight Begins 07:02 EDT Ends 21:10 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

APRIL 26TH
HISTORIC WEATHER EVENTS
...1834...
Killer frosts were reported in the Deep South. The frost was quite severe
around Huntsville AL, and highlighted a backward spring in the South that
year. (David Ludlum)
...1978...
An unusually strong occluded front swept out of the Gulf of Alaska and
produced the first April thunderstorm of record at Fairbanks. Pea size hail
fell northeast of Fairbanks from thunderstorms whose tops were less than
8000 feet. (The Weather Channel)
...1984...
Severe thunderstorms associated with an intense cyclone spawned a total of
forty-seven tornadoes in two days from Louisiana to Upper Michigan. The
tornadoes killed 16 persons and injured 259 others. (Storm Data)


Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky