A joint service of the UK Ag Weather Center and the National Weather Service.
National Weather Service Shreveport LA 1146 PM CST Sun Dec 17 2017 .AVIATION... LIFR cigs with reduced vsbys in FG (some of it dense) will continue areawide through much of Monday morning, before a slow improvement commences by late morning/midday. However, as was the case today, not expecting vsbys to improve much, possibly in the 3-6SM range with IFR/LIFR cigs lingering through the afternoon. Can't rule out isolated -SHRA developing during the afternoon over E TX/Wrn LA, and over the remainder of the region during the evening, but low confidence precludes VCSH mention in the TAF's attm. As low level winds become more SE Monday evening atop a very moist and cool ground, should see cigs lowering to LIFR once again after 00Z, with areas of FG developing over much of the region as a warm front begins to advance NNW into E TX/N LA from SE TX/S LA. Lt/Vrb winds will continue tonight through much of Monday. /15/National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]
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Regional Hourly Observations For ST. LANDRY County
SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 1200am CST, Monday December 18, 2017
Across Louisiana...temperatures are near 65 degrees south. Current sky condition is cloudy south. In the south, relative humidity is near 100%, and the dew point is near 65 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the south 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 66 degrees at New Orleans Lakefront. The lowest temperature is 62 degrees at Baton Rouge.
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. LANDRY County, LA
528 AM CST Sun Dec 17 2017 DAY ONE Today and Tonight Widespread showers with a few embedded thunderstorms will continue to progress to the east and will come to an end by this afternoon. Periods of heavy rain may occur during the morning that could lead to minor nuisance flooding along secondary roadways. DAYS TWO THROUGH SEVEN Monday through Saturday The cold front that moved through this morning will lift back to the north as a warm front providing a focus for another round of widespread showers and thunderstorms. These storms will also have the potential to produce periods of heavy rain which could cause minor nuisance flooding along secondary roadways. This rain will continue into Tuesday night before another cold front sweeps through the area bringing the precipitation to an end. Another upper low and associated cold front will approach the area late Thursday night into Friday bringing another round of showers and thunderstorms that will continue into Sunday morning. SPOTTER INFORMATION STATEMENT Spotter activation is not anticipated.
7-Day Forecast For ST. LANDRY Parish, LA
950 PM CST Sun Dec 17 2017
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ST. LANDRY 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 23-27 DEC 25-DEC 31 DEC DEC-FEB ----------- ----------- -------- --------- Temperature: Normal Below Above Above Precipitation: Above Above Below Below .... Medium and long range outlooks provided by NCEP/K. Thomas Priddy5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Monday December 18, 2017 the 352th Day of Year --------------------------------------------------- SUN Declination -23.410000 Distance 0.999725 AU Rise 08:03 EST Set 18:07 EST Transit Meridian 13:05 EST Civil Twilight Begins 07:37 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 18TH HISTORIC WEATHER EVENTS ...1957... A tornado swept across Jackson County, Williamson County and Franklin County in southern Illinois killing eleven persons. (David Ludlum) ...1981... A heavy lake-effect snow blanketed the southern and southeast shores of Lake Michigan leaving up to 22 inches of snow at Valparaiso IND. (David Ludlum) ...1983... Record cold hit the north central states. At Havre MT the mercury plunged to a record reading of 34 degrees below zero. (Sandra and TI Richard Sanders - 1987) ...1984... A storm over southern California left up to 16 inches of snow in the mountains and upper deserts, with 13 inches reported at Lancaster. Edwards Air Force Base was closed, and Interstate 5 was closed from Castaic to the Tehachapis Mountains. (18th-19th) (The Weather Channel) ...1986... A strong winter storm, which developed off the coast of New Jersey and moved out to sea, lashed the northeastern U.S. with high winds, heavy rain, and heavy snow. The storm left snowfall amounts of up to 30 inches in Vermont, 24 inches in Massachusetts, and 20 inches in New Hampshire. The highest rainfall amounts approached four inches in southern New England, where winds gusted to 70 mph. (Storm Data) ...1987... A weakening storm moved into the Rocky Mountain Region producing six inches of snow at the Platoro Reservoir in the San Juan Mountains of Colorado. The storm then spread rain and drizzle across the Southern High Plains into the Middle Mississippi Valley, with thunderstorms over Texas. (Storm Data) (The National Weather Summary) ...1988... Warm weather prevailed in the central U.S. while cool weather prevailed across the eastern states. Sheridan WY, with a record warm afternoon high of 68 degrees, was seven degrees warmer than Key West FL. (The National Weather Summary) ...1989... A winter storm moving out of the Great Plains Region spread freezing rain, sleet and snow across parts of the southeastern U.S. Freezing rain resulted in 170 auto accidents in the Memphis area during the evening hours. Unseasonably warm weather continued ahead of arctic cold front. Miami FL equalled their record for December with an afternoon high of 87 degrees. (Storm Data) (The National Weather Summary)
Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky