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Allen Parish, LA Weather and Climate Synopsis

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National Weather Service Shreveport LA
1136 AM CST Sat Dec 16 2017

.DISCUSSION...
The 18z TAF discussion follows below.

Very little has changed with the current forecast thinking. The
12z KSHV sounding shows a pronounced dry layer below 500 hPa. As 
southwesterly flow increases later today, the atmosphere should 
moisten from the top down. I would not be surprised if precip 
develops on radar this afternoon, but mostly evaporates before 
hitting the ground. Once the elevated precip begins, the lower 
levels of the atmosphere should quickly saturate, and the rain 
should reach the surface.

Some minor updates were made to PoPs for this afternoon, and a few
small edits were made to better match hourly trends.

Updated text products have been sent.

CN

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.

Regional Hourly Observations For ALLEN County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 400pm CST, Saturday December 16, 2017

Across Louisiana...temperatures are near 54 degrees south. Current sky condition is cloudy south. In the south, relative humidity is near 69%, and the dew point is near 44 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the east at 8 mph in the south, where conditions are favorable for spraying. The livestock cold stress index is in the unavailable category north, unavailable category central, and no stress category south. Based on current available observations, the highest temperature is 59 degrees at Baton Rouge. The lowest temperature is 52 degrees at New Orleans Lakefront.


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 ALLEN County, LA

523 AM CST Sat Dec 16 2017

 DAY ONE  Today and Tonight
Patchy fog across portions of southeast Texas and central
Louisiana this morning will have the potential to reduce
visibilities to less than a mile in some locations. The fog will
dissipate by mid morning.

An upper level low will approach the area this evening into
tonight bringing widespread showers and a few thunderstorms. Some
of these storms will have the potential to produce heavy rainfall.
Widespread rainfall totals of around an inch can be expected with
local amounts of up to two inches possible.

 DAYS TWO THROUGH SEVEN  Sunday through Friday
Showers with a few embedded thunderstorms will be ongoing Sunday
morning. Some of these storms will have the potential to produce
heavy rainfall. A few storms may become strong to severe with 
damaging winds and one or two weak tornados possible Sunday 
afternoon and again during the day Monday.

A series of upper level troughs will move across the area Monday
through Friday bringing several days of widespread rainfall.
Widespread rainfall totals of 3 to 4 inches can be expected over
the five day period with up to 8 inches possible in localized
areas.

 SPOTTER INFORMATION STATEMENT  
Spotter activation may be requested Sunday afternoon or Monday.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For ALLEN Parish, LA
357 PM CST Sat Dec 16 2017

TONIGHT
Warmer. Chance of showers in the evening, then showers and slight chance of thunderstorms after midnight. Lows around 50. East winds 5 to 10 mph. Chance of precipitation near 100 percent.

SUNDAY
Warmer. Mostly cloudy. A 50 percent chance of showers in the morning. Highs in the upper 60s. Northeast winds up to 5 mph shifting to the east in the afternoon.

SUNDAY NIGHT
Cloudy. Slight chance of showers and thunderstorms in the evening, then chance of showers and slight chance of thunderstorms after midnight. Lows in the mid 50s. Northeast winds up to 5 mph. Chance of precipitation 50 percent.

MONDAY
Showers likely and slight chance of thunderstorms. Highs in the upper 60s. East winds up to 5 mph. Chance of precipitation 70 percent.

MONDAY NIGHT
Cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers and thunderstorms after midnight. Near steady temperature in the lower 60s. Southeast winds up to 5 mph. Chance of precipitation 50 percent.

TUESDAY
Cloudy with chance of showers and slight chance of thunderstorms. Highs in the mid 70s. Chance of precipitation 50 percent.

TUESDAY NIGHT
Showers likely and slight chance of thunderstorms. Lows around 60. Chance of precipitation 70 percent.

WEDNESDAY
Mostly sunny with a 20 percent chance of showers. Highs around 70.

WEDNESDAY NIGHT
Cooler. Partly cloudy. Lows in the upper 40s.

THURSDAY
Mostly sunny with a 20 percent chance of showers. Highs around 70.

THURSDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s.

FRIDAY
Showers likely. Highs in the mid 60s. Chance of showers 60 percent.

FRIDAY NIGHT
Colder. Mostly cloudy with a 50 percent chance of showers. Lows in the lower 40s.

SATURDAY
Cooler. Showers likely. Highs in the lower 50s. Chance of showers 60 percent.

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


ALLEN 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 22-26    DEC 24-30    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      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

Saturday December 16, 2017 the 350th Day of Year

---------------------------------------------------
SUN
Declination -23.350000
Distance 0.999725 AU
Rise 08:02 EST Set 18:06 EST
Transit Meridian 13:04 EST
Civil Twilight Begins 07:36 EST Ends 18:33 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 16TH
HISTORIC WEATHER EVENTS
...1835...
New England experienced one of their coldest days of record. At noon on
that bitterly cold Wednesday the mercury stood at four degrees below at
Boston, 15 degrees below at Norfolk CT, and 17 degrees below at Hanover NH.
The temperature at Boston was 12 degrees below zero by sunset. Gale force
winds accompanied the severe cold, and that night a great New York City
fire destroyed much of the financial district. (David Ludlum)
...1869...
A bill was introduced in the House of Representatives, 41st Congress, 
calling for the taking [of] meteorological observations at the military 
stations in the interior of the continent, and for giving notice on the 
northern lakes and Atlantic seaboard of the approach and force of storms. 
This would be signed in to law February 9, 1870, by President Grant, 
establishing what would come to be called the National Weather Service. You 
can see the actual bill on-line at: 
 here.
...1917...
An ice jam closed the Ohio River between Warsaw KY and Rising Sun IN. The
thirty foot high ice jam held for 58 days, and backed up the river a
distance of 100 miles. (David Ludlum)
...1987...
A Pacific storm battered the coast of California with rain and high winds,
and dumped heavy snow on the mountains of California. Winds along the coast
gusted to 70 mph at Point Arguello, and winds in the Tehachapi Mountains of
southern California gusted to 100 mph at Wheeler Ridge. Snowfall totals
ranged up to 24 inches at Mammoth Mountain. Snow fell for two minutes at
Malibu Beach, and Disneyland was closed due to the weather for only the
second time in twenty-four years. A winter storm which began in the
Southern Rockies four days earlier finished its course producing snow and
high winds in New England. Snowfall totals ranged up to 19 inches at
Blanchard ME. (The National Weather Summary) (Storm Data)
...1988...
Fairbanks AK reported freezing rain and record warm temperatures. The
afternoon high of 41 degrees was 43 degrees above normal. Snow and high
winds continued to plague the mountains of southern California. Mount
Wilson CA reported two inches of rain in six hours during the early
morning, and a storm total of more than 3.50 inches of rain. (The National
Weather Summary)
...1989...
Fifty-seven cities from the Southern and Central Plains to the Appalachians
reported record low temperatures for the date, including North Platte NE
with a reading of 17 degrees below zero. Squalls in the Great Lakes Region
produced 18 inches of snow at Syracuse NY, and 30 inches at Carlisle IND.
Low pressure brought heavy snow to northern New England, with 18 inches
reported at Derby VT and Saint Johnsbury VT. (The National Weather Summary)
(Storm Data)

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