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St. John The Baptist 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
513 AM CST Fri Dec 15 2017

.AVIATION...
VFR conditions will prevail over the next 24 hours across our
airspace. Cirrus will continue to stream across the region from
the south and west today through tonight but will thin at times, 
especially during the overnight hours. North to northwest winds
mainly less than 10kts today will become light and variable during
the evening hours. After midnight, look for south winds of 5 to 10
mph to begin at our NE TX terminals towards the tail end of this
24hr taf period. 

13

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

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Regional Hourly Observations For ST. JOHN THE BAPTIST County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 500am CST, Friday December 15, 2017

Across Louisiana...temperatures are near 40 degrees north, near 43 degrees central, and near 52 degrees south. Current sky conditions are mostly cloudy north, cloudy central, and cloudy south. In the north, relative humidity is near 64%, and the dew point is near 29 degrees. In the central part of the state, relative humidity is near 77%, and the dew point is near 36 degrees. In the south, relative humidity is near 80%, and the dew point is near 46 degrees. Winds are calm in the north, where conditions are favorable for spraying. Winds are coming from the north at 9 mph in the central, where conditions are favorable for spraying. Winds are coming from the north at 3 mph in the south, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category north, no stress category central, and no stress category south. Based on current available observations, the highest temperature is 53 degrees at New Orleans Lakefront. The lowest temperature is 36 degrees at Manroe.


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. JOHN THE BAPTIST County, LA

454 AM CST Fri Dec 15 2017

 DAY ONE  Today and Tonight

Strong northerly winds will bring hazardous conditions over the
coastal waters today. Small craft advisory is in effect for the
outer waters south and west of the delta today. 

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Thunderstorms will be possible Sunday through Tuesday, especially
south of Interstate 10. A few storms may be strong on Sunday.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not anticipated.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For ST. JOHN THE BAPTIST Parish, LA
542 AM CST Fri Dec 15 2017

TODAY
Cloudy with a 50 percent chance of rain showers. Highs in the lower 50s. North winds 5 to 15 mph.

TONIGHT
Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. Northeast winds 5 to 10 mph.

SATURDAY
Partly cloudy. Highs in the upper 50s. East winds 5 to 10 mph.

SATURDAY NIGHT
Warmer. Mostly cloudy. A 20 percent chance of rain showers after midnight. Lows in the mid 50s. East winds around 10 mph.

SUNDAY
Warmer. Rain showers likely and chance of thunderstorms in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs in the mid 70s. South winds 10 to 15 mph. Chance of precipitation 80 percent.

SUNDAY NIGHT
Cloudy with rain showers likely and isolated thunderstorms. Lows around 60. Chance of precipitation 70 percent.

MONDAY
Rain showers and isolated thunderstorms. Highs in the mid 70s. Chance of precipitation 80 percent.

MONDAY NIGHT
Cloudy with rain showers likely and isolated thunderstorms. Lows in the lower 60s. Chance of precipitation 60 percent.

TUESDAY
Cloudy with rain showers likely and isolated thunderstorms. Highs around 70. Chance of precipitation 60 percent.

TUESDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. A 30 percent chance of rain showers. Lows in the mid 50s.

WEDNESDAY
Partly cloudy with a 40 percent chance of rain showers. Highs in the lower 60s.

WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 50s.

THURSDAY
Partly cloudy with a 20 percent chance of rain showers. Highs around 70.

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. JOHN THE BAPTIST 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 
                   DEC 20-24    DEC 22-28    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal      Above      Above                      
 Precipitation:      Above        Above      Below      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 December 15, 2017 the 349th Day of Year

---------------------------------------------------
SUN
Declination -23.310000
Distance 0.999725 AU
Rise 08:01 EST Set 18:06 EST
Transit Meridian 13:03 EST
Civil Twilight Begins 07:35 EST Ends 18:32 EST

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

DECEMBER 15TH
HISTORIC WEATHER EVENTS
...1839...
The first of triple storms hit Massachusetts Bay. The storm produced whole
gales, and more than 20 inches of snow in interior New England. There was
great loss of life at Gloucester MA. (David Ludlum)
...1901...
An intense cold front swept across the eastern U.S. The cold front produced
heavy rain in Louisiana, and heavy snow in the northeastern U.S. (David
Ludlum)
...1945...
A record December snowstorm buried Buffalo NY under 36.6 inches of snow,
with unofficial totals south of the city ranging up to 70 inches. Travel
was brought to a halt by the storm. (14th-17th) (The Weather Channel)
...1987...
A major winter storm hit the Great Lakes Region, intensifying explosively
as it crossed northern Illinois. High winds and heavy snow created blizzard
conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall
totals ranged up to 17 inches at LaFarge. The barometric pressure at
Chicago IL dropped three quarters of an inch in six hours to 28.96 inches,
a record low reading for December. Up to a foot of snow blanketed northern
Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in
Chicago was closed for several hours, for only the fourth time in twenty
years. High winds derailed train cars at Avon IN. Light winds and partly
sunny skies were reported near the center of the storm, a feature typical
of tropical storms. (The National Weather Summary) (Storm Data)
...1988...
High pressure in the Pacific Northwest and low pressure in the southwestern
U.S. combined to produced high winds from Utah to California. Winds gusting
to 70 mph in the San Francisco area left nearly 300,000 residents without
electricity. Winds in Utah gusted to 105 mph at Centerville. (The National
Weather Summary) (Storm Data)
...1989...
A couple of low pressure systems spread heavy snow across the northeastern
U.S. Up to two feet of snow was reported along Lake Erie in northeastern
Ohio, and up to ten inches was reported in Connecticut. Heavy snow squalls
developed over Michigan for the third day in a row. Three Oaks MI reported
25 inches of snow in two days. Twenty-six cities in the north central U.S.
reported record low temperatures for the date. The low of 10 degrees below
zero at Wichita KS was a December record for that location. (The National
Weather Summary) (Storm Data)

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