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St. Helena Parish, LA Weather and Climate Synopsis

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36 Hr. Forecast Map
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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
152 PM CDT Thu Mar 22 2018

For the 22/18Z terminal forecast for the ArkLaTex will prevail 
VFR flight categories through most of the period with an increase
in low level moisture that will return MVFR for Deep East and
parts of East Texas between 23/12Z-23/14Z and into Northeast Texas
and adjacent Southwest Arkansas and Northwest Louisiana between
23/14Z-23/15Z with ceilings around 1-3 KFT. MVFR ceilings will 
enter parts of South Central Arkansas and North Central Louisiana
beyond the end of the forecast period. Surface winds will be south
6-11 knots this afternoon for Southwest and South Central Arkansas
and Northwest and North Central Louisiana, and 10-15 knots for
East and Northeast Texas. The winds will lower overnight to around
10 knots for Texas and from 3-7 knots for remaining sites, but
increase significantly after 23/14z with a tightening pressure 
gradient with southerly winds of 15-20 knots areawide with higher 
gusts to 25-30 knots on Friday. /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.

Regional Hourly Observations For ST. HELENA County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 600pm CDT, Thursday March 22, 2018

Across Louisiana...temperatures are near 69 degrees south. Current sky condition is fair south. In the south, relative humidity is near 32%, and the dew point is near 38 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the west at 3 mph in the south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 71 degrees at Baton Rouge. The lowest temperature is 66 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. HELENA County, LA

225 PM CDT Thu Mar 22 2018

 DAY ONE  This Afternoon and Tonight

No hazardous weather is anticipated at this time.

 DAYS TWO THROUGH SEVEN  Friday through Wednesday

The risk of widespread hazardous weather is low.


Spotter activation is not anticipated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For ST. HELENA Parish, LA
348 PM CDT Thu Mar 22 2018

Clear. Lows in the mid 40s. Southeast winds to 5 mph.

Sunny. Highs in the mid 70s. South winds to 10 mph.

Warmer. Partly cloudy. Lows in the upper 50s. South winds 5 to 10 mph.

Partly cloudy. Highs around 80. Southwest winds 5 to 15 mph.

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

Partly cloudy. Highs in the lower 80s.

Partly cloudy. Lows in the lower 60s.

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

Mostly cloudy with a 20 percent chance of showers. Lows in the mid 60s.

Mostly cloudy with a 40 percent chance of showers. Highs in the upper 70s.

Mostly cloudy with a 20 percent chance of showers. Lows in the mid 60s.

Partly cloudy. Chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 40 percent.

Partly cloudy in the evening then becoming mostly cloudy. A 30 percent chance of showers. Lows in the upper 60s.

Mostly cloudy. Showers likely in the morning, then showers likely and slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 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

ST. HELENA 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 28-APR 1 MAR 30-APR 5    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal     Normal      Above                      
 Precipitation:      Above        Above     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

Thursday March 22, 2018 the 81th Day of Year

Declination 1.020000
Distance 0.999721 AU
Rise 07:08 EDT Set 19:21 EDT
Transit Meridian 13:14 EDT
Civil Twilight Begins 06:45 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 spectactular display of the Northern Lights was visible as far south as
Bradenton FL, El Paso TX, and Fresno CA. At Detroit MI, the display was
described "so brilliant as to blot out all stars below first magnitude".
(22nd-23rd) (The Weather Channel)
A great flood crested on rivers from Ohio to Maine. The flood claimed 107
lives and caused 270 million dollars property damage. (David Ludlum)
Six to ten inch rains caused the Chicago River to overflow its banks. (The
Weather Channel)

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