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St. Tammany 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

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

National Weather Service Shreveport LA
751 PM CDT Mon Oct 15 2018


For the 16/00Z TAFs, IFR/MVFR cigs to prevail, possibly with some
intermittent LIFR cigs at times, with widespread rain overtaking
all terminals during this period. Little if any change in these
conditions is expected, but vsbys may fluctuate due to rainfall 
intensity. Otherwise, look for brisk northerly winds around 10 kts
with occasional higher gusts between 15-20 kts. Winds quickly 
shift S/SW around 5Kft above the surface with speeds gradually 
increasing to near 50 kts at 30Kft. 


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 ST. TAMMANY Parish
800 PM CDT MON OCT 15 2018

N.O. INTL ARPT CLOUDY    79  76  90 NE14      30.04S                  
N.O. LAKEFRONT FAIR      77  74  90 N14       30.05R                  
N.O. DOWNTOWN* LGT RAIN  78  74  87 N7        30.06R                  
RESERVE*       MOCLDY    77  73  88 E7        30.04S                  
SLIDELL        CLOUDY    75  73  93 N6        30.06R                  
BATON ROUGE    RAIN      76  75  97 E3        30.04S FOG              
BOOTHVILLE     FAIR      82  76  81 SE6       30.04S                  
BELLE CHASSE   NOT AVBL                                               
BOGALUSA*      LGT RAIN  74  71  88 N5        30.09R                  
GALLIANO*      CLOUDY    79  73  83 CALM      30.03R                  
NEW ROADS*     CLOUDY    77  72  83 SE6       30.07R                  
GONZALES*      TSTM      74  72  93 N3        30.04R                  
HAMMOND*       CLOUDY    73  72  94 E6        30.05S                  
HOUMA*         CLOUDY    79  76  92 E5        30.02R                  
PORT FOURCHON* CLOUDY    81  77  89 SE12      30.03R                  

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

Current Agricultural Weather Conditions in Louisiana
Based on observations at 800pm CDT, Monday October 15, 2018

Across Louisiana...temperatures are near 79 degrees south. Current sky condition is cloudy south. In the south, relative humidity is near 90%, and the dew point is near 76 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the northeast at 14 mph in the south, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 79 degrees at N.O. INTL ARPT and Houma. The lowest temperature is 75 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 ST. TAMMANY County, LA

736 PM CDT Mon Oct 15 2018

 DAY ONE  Tonight

Scattered showers and thunderstorms are expected tonight. A few 
storms could produce frequent lightning and locally heavy rainfall 
which may lead to minor street flooding. 

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday

Showers and thunderstorms are expected Tuesday and then again
from late Friday night through Saturday. A few storms could 
produce frequent lightning and locally heavy rainfall which may 
lead to minor street flooding. 


Spotter activation is not anticipated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For ST. TAMMANY Parish, LA
426 PM CDT Mon Oct 15 2018

Partly cloudy in the evening then becoming mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 70s. Northeast winds to 5 mph. Chance of precipitation 50 percent.

Mostly cloudy. Chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Northeast winds 5 to 10 mph. Chance of precipitation 40 percent.

Partly cloudy with chance of showers and slight chance of thunderstorms in the evening, then mostly cloudy with chance of showers after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of precipitation 30 percent.

Mostly cloudy with a 30 percent chance of showers. Highs in the upper 70s. Northeast winds 5 to 10 mph.

Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 50s. Northeast winds 5 to 15 mph.

Partly cloudy. Highs in the upper 70s.

Mostly clear. Lows in the lower 60s.

Partly cloudy. Slight chance of showers in the morning, then slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 20 percent.

Partly cloudy with a 40 percent chance of showers. Lows in the upper 60s.

Mostly cloudy with a 50 percent chance of showers. Highs in the upper 70s.

Cooler. Mostly cloudy in the evening then becoming partly cloudy. A 40 percent chance of rain showers. Lows in the upper 50s.

Partly cloudy. A 20 percent chance of rain showers in the morning. Highs in the lower 70s.

Mostly clear. Lows in the lower 50s.

Sunny. Highs in the lower 70s.

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

ST. TAMMANY 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 
                   OCT 21-25    OCT 23-29    OCT       OCT-DEC                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below                                            
 Precipitation:      Above        Above                                            

....  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

Monday October 15, 2018 the 288th Day of Year

Declination -8.870000
Distance 0.999721 AU
Rise 08:12 EDT Set 19:35 EDT
Transit Meridian 13:53 EDT
Civil Twilight Begins 07:48 EDT Ends 19:59 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 violent early season blizzard raked Minnesota and the Dakotas. Winds
gusted to 70 mph at Yankton SD, and snow drifts 10 to 15 feet high were
reported in northwest Iowa and southeast South Dakota. Saint Paul MN
reported a barometric pressure of 28.65 inches on the 16th. Railroads were
blocked by drifts of snow which remained throughout the severe winter to
follow. Gales did extensive damage to ship on the Great Lakes. (15th-16th)
(David Ludlum) (The Weather Channel)
Hurricane Hazel struck the Carolina coastline. The hurricane demolished
every pier along a 170 mile stretch from Myrtle Beach SC to Cedar Island
NC, and obliterated entire lines of beach homes. Hurricane Hazel also
destroyed 1500 homes as it moved inland with seventeen foot tides. Winds
between Myrtle Beach SC and Cape Fear NC gusted to 150 mph. Hurricane Hazel
caused 163 million dollars damage, and claimed the lives of 98 persons.
(David Ludlum) (The Weather Channel)
Iowa experienced its worst late season tornado of record. In just one
minute a twister tore through the town of Belmond leveling 75 percent of
the businesses, and 100 homes, causing more than eleven million dollars
damage. (The Weather Channel)
Unseasonably cold weather continued in the eastern U.S., with thirteen
cities reporting record low temperatures for the date. The low of 34
degrees at Montgomery AL was their coldest reading of record for so early
in the season. Lows of 32 degrees at Harrisburg PA and 34 degrees at
Parkersburg WV marked their third straight morning of record cold. (The
National Weather Summary)
The cold high pressure system responsible for the record low temperatures
in the eastern U.S. began to move out to sea, giving way to a trend toward
"Indian Summer". Thunderstorms developing ahead of a cold front produced
golf ball size hail at Altamont KS and hail two inches in diameter at Yates
City IL. (Storm Data) (The National Weather Summary)
Hurricane Jerry made landfall at Galveston TX at 6:30 PM (CDT). Winds at
the Galveston Airport reached 75 mph, with gusts to 100 mph. Tides along
the island were six to eight feet, and rainfall totals ranged up to
slightly more than six inches north of Beaumont. Three persons were killed
when their vehicle was blown off the Galveston seawall into the pounding
surf. Total damage along the Upper Texas Coast was estimated at fifteen
million dollars. Thunderstorms produced severe weather in Lower Michigan
during the late morning. Two persons were injured when a tree fell on their
camper at the Traverse City State park. While strong northerly winds
ushered much colder air into the central U.S., unseasonably warm weather
continued in the south central and eastern U.S. The afternoon high of 82
degrees at Bluefield WV was a record for October. (The National Weather
Summary) (Storm Data)

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