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Orleans Parish, LA Weather and Climate Synopsis

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Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

US Weekly Rainfall Departure

US Weekly Temperature Departure
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A joint service of the UK Ag Weather Center and the National Weather Service.

National Weather Service Shreveport LA
504 PM CDT Fri Mar 23 2018

This afternoon a tight pressure gradient between a large surface
low pressure system over the Rockies and Southern Plains and 
surface high pressure over the Eastern U.S. continued to produce
strong and gusty Southerly winds of 15-20 MPH with higher gusts up
to 30-35 MPH across much of East and Northeast Texas, Southeast
Oklahoma and the immediate adjacent sections of Southwest Arkansas
and Northwest Louisiana. Have extended the Lake Wind Advisory 
until 1 AM CDT due to the expected gradient to remain across the 
area. The winds may continue elevated after 1 AM for parts of 
East and Northeast Texas, but should be below the Lake Wind 
Advisory criteria. The pattern aloft shows an amplified upper 
ridge from the Western Gulf of Mexico into the Central sections of
the country and into Canada with a trough over the Eastern
Atlantic and a closed upper low over the Pacific Northwest with
trough down the West Coast. A short wave trough of low pressure
was moving out of the Rockies and moving into the Ridge aloft.
From the surface low over the Plains a dry line will trail
Southwest off of a cold front reaching from the Surface low
over South Oklahoma and into the Pan Handle of Texas late tonight
with a few showers expected to form ahead of the features. By mid
day Saturday the surface low will be moving across the Middle 
Mississippi Valley with the cold front overtaking the dry line and
providing a small chance of showers for our more Northern zones 
over Southeast Oklahoma and South Arkansas. The cold front will be
moving into Northeast Texas and near the Louisiana/Arkansas 
border late Saturday night providing the area with a slight chance
of showers to near the Interstate 2o corridor and North. The 
upper short wave will be shifting to the East away from the region
and the boundary will become nearly stationary during Sunday and 
lift back to the Northeast as a warm front and have introduced 
mention of isolated thunderstorms. Rain chances will continue to 
increase as the upper ridge of high pressure leans to the East 
along the East Coast and down into the Northeast Gulf of Mexico. 
To the West an upper level trough of low pressure will start to 
close off near the Four Corners Region resulting in a slow 
progression of the upper pattern resulting in a Southwest flow 
into the forecast area with a series of disturbances to go along 
with a surface high pressure anchored over the Eastern U.S. 
providing additional low level gulf moisture supply. This pattern 
will set the stage for our Tuesday through Thursday wet pattern 
with locally heavy rainfall and the potential for flash flooding. 
flooding, and river flooding. The water runoff from the expected 
heavy rainfall will affect the forecast area through the end of 
March and into the first week of April. The exact axis of heavy 
rain is uncertain at this time, but many locations will receive 
three to four inches with some higher amounts of five to six 
inches. These values are preliminary and can change as the 
pattern sets up. There will be a chance of storms becoming severe 
with the approach and passage of cold fronts. The upper low will 
become an open wave near mid week as it ejects East across Texas 
and Oklahoma sending a cold front into the Four State Region on 
Thursday and may bring an end to the rainfall by Thursday night. A
weak short wave may provide a small chance of rain in the broad 
upper trough over the Conus as it passes on Friday. Otherwise rain
chances will end and last a dry pattern through the weekend. /06/

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
500 PM CDT FRI MAR 23 2018

N.O. INTL ARPT FAIR      72  56  57 S13       30.21F                  
N.O. LAKEFRONT FAIR      72  54  53 S14       30.21F                  
N.O. DOWNTOWN* FAIR      74  53  48 S12G18    30.22F                  
RESERVE*       FAIR      76  53  44 S16G23    30.19F                  
SLIDELL        FAIR      70  50  49 S13       30.21F                  
BATON ROUGE    FAIR      75  48  38 S21       30.16F                  
BOOTHVILLE     FAIR      72  54  53 SE10G17   30.23F                  
BELLE CHASSE   FAIR      71  56  58 S14       30.21F                  
BOGALUSA*      FAIR      74  44  34 S10G20    30.20S                  
GALLIANO*      FAIR      71  52  51 SE7       30.22S                  
NEW ROADS*     FAIR      76  48  37 S16G22    30.15F                  
GONZALES*      FAIR      74  52  45 S13G22    30.17F                  
HAMMOND*       FAIR      72  48  43 S14       30.18F                  
HOUMA*         MOSUNNY   72  57  60 SE12G21   30.21F                  
PORT FOURCHON* CLEAR     70  57  64 SE13      30.22F                  

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

Current Agricultural Weather Conditions in Louisiana
Based on observations at 500pm CDT, Friday March 23, 2018

Across Louisiana...temperatures are near 78 degrees north, near 75 degrees central, and near 72 degrees south. Current sky conditions are partly sunny north, partly sunny central, and fair south. In the north, relative humidity is near 44%, and the dew point is near 55 degrees. In the central part of the state, relative humidity is near 49%, and the dew point is near 55 degrees. In the south, relative humidity is near 57%, and the dew point is near 56 degrees. Winds are coming from the south at 17 mph in the north, where conditions are not favorable for spraying due to strong winds. Winds are coming from the south at 20 mph with gusts at 30 mph in the central, where conditions are not favorable for spraying due to strong winds. Winds are coming from the south at 13 mph in the south, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 78 degrees at Shreveport and Manroe. The lowest temperature is 70 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, LA

317 AM CDT Fri Mar 23 2018

 DAY ONE  Today and Tonight

Flood warnings continue along the Mississippi, Pearl, and 
Atchafalaya rivers. Refer to the latest river flood statements
for details.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Flood warnings will continue along the Mississippi, Pearl and 
Atchafalaya rivers. Refer to the latest river flood statements
for details.

Otherwise, the risk of widespread hazardous weather is low.


Spotter activation is not anticipated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For ORLEANS Parish, LA
356 PM CDT Fri Mar 23 2018

Partly cloudy. Lows in the lower 60s. South winds 5 to 15 mph.

Partly cloudy. Highs in the upper 70s. South winds 10 to 20 mph.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 60s. Southwest winds to 10 mph.

Partly cloudy. Highs in the lower 80s. South winds to 10 mph.

Partly cloudy. Lows in the mid 60s. Southeast winds to 10 mph.

Mostly cloudy with a 20 percent chance of light rain. Highs in the upper 70s.

Mostly cloudy. A 20 percent chance of showers and thunderstorms after midnight. Lows in the mid 60s.

Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs in the mid 70s.

Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the upper 60s.

Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs around 80.

Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the upper 60s.

Mostly cloudy. Chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent.

Cooler. Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of rain showers and thunderstorms. Lows in the upper 50s.

Partly cloudy. Highs in the upper 60s.

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

                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                MAR 29-APR 2 MAR 31-APR 6    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal       Normal     Normal      Above                      
 Precipitation:      Above        Below     Normal      Below                      

....  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 March 23, 2018 the 82th Day of Year

Declination 1.420000
Distance 0.999721 AU
Rise 07:07 EDT Set 19:22 EDT
Transit Meridian 13:14 EDT
Civil Twilight Begins 06:44 EDT Ends 19:45 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

A vicious tornado hit the city of Omaha NE. The tornado struck during the
late afternoon on Easter Sunday, and in just twelve minutes cut a swath of
total destruction five miles long and two blocks wide across the city
killing 94 persons and causing 3.5 million dollars property damage. (David
Pocatello ID received a record 14.6 inches of snow in 24 hours. (The
Weather Channel)

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