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Upper St. Martin Parish, LA Weather and Climate Synopsis

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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
652 PM CDT Sun Jul 22 2018

.AVIATION...
VFR conditions will continue through the 23/00Z TAF period.
Extensive areas of AC cigs will continue to spill S across the
remainder of E TX/Lower Toledo Bend Country this evening, and
persist overnight through much of Monday morning. Within these AC
cigs, areas of -RA/sprinkles will be possible tonight through
Monday morning, but given the very dry low level air mass in 
place, not expecting cigs to lower much nor vsbys to be reduced. 
Should start to see the AC scatter out over SW AR late Monday 
morning/midday, and across portions of N LA by early to mid 
afternoon, although a sct cu field will develop/advect SSW across 
much of SW AR/Ncntrl LA during the afternoon behind a weak sfc 
front that will slowly backdoor SW into Lower E TX/Cntrl LA during
the afternoon. Lt/Vrb winds tonight over SW AR/extreme Nrn LA/NE
TX, and light SW winds over Deep E TX/Ncntrl LA, will become NNE
5-8kts over much of the region after 15Z Monday, although Deep E
TX will remain WSW through much of the day ahead of the weak sfc
front. /15/

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 UPPER ST. MARTIN County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 900pm CDT, Sunday July 22, 2018

Across Louisiana...temperatures are near 87 degrees south. Current sky condition is fair south. In the south, relative humidity is near 82%, and the dew point is near 81 degrees. The heat index is near 104 degrees south. The livestock heat stress category is unavailable north, unavailable central, and emergency south. Winds are unavailable north. Winds are unavailable central. Winds are coming from the southwest at 9 mph in the south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 89 degrees at New Orleans Lakefront and Baton Rouge. The lowest temperature is 87 degrees at N.O. INTL ARPT.


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 UPPER ST. MARTIN County, LA

331 PM CDT Sun Jul 22 2018

   HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING AND NOON TO 8 PM CDT
MONDAY  

This Hazardous Weather Outlook is for portions of central
Louisiana, south central Louisiana, southwest Louisiana, west
central Louisiana, and southeast Texas.

 DAY ONE  This Afternoon and Tonight

Temperatures will remain in the 90s through early evening. 
Combined with dew points well into the 70s, heat index values will
range from 103 to 108 into this evening, and a Heat Advisory is 
in effect. Tonight, warm temperatures will continue with lows in 
the upper 70s to near along and north of Interstate 10, with lower
80s along the coastal parishes and counties.

 DAYS TWO THROUGH SEVEN  Monday through Saturday

The heat wave continues on Monday, with afternoon temperatures in
the mid 90s along the Interstate 10 corridor and Central Louisiana,
and upper 90s to lower 100s across inland Southeast Texas. Heat
indices will range from 105 to 112 in the afternoon and continue 
into the early evening. A Heat Advisory is in effect for Monday 
afternoon.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For UPPER ST. MARTIN Parish, LA
300 PM CDT Sun Jul 22 2018


HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT THIS EVENING


HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY

TONIGHT
Mostly cloudy. Lows around 80. West winds up to 15 mph. Highest heat index readings 105 to 106 in the evening.

MONDAY
Partly sunny. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. West winds 5 to 10 mph. Chance of precipitation 40 percent. Highest heat index readings 105 to 109 in the afternoon.

MONDAY NIGHT
Mostly clear. A 30 percent chance of showers and thunderstorms in the evening. Lows in the mid 70s. North winds up to 10 mph. Highest heat index readings around 105 in the evening.

TUESDAY
Sunny. Highs in the mid 90s. North winds 5 to 10 mph.

TUESDAY NIGHT
Mostly clear. Lows in the lower 70s. North winds up to 10 mph.

WEDNESDAY
Sunny. Highs in the mid 90s.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 70s.

THURSDAY
Sunny. Highs in the upper 90s. Highest heat index readings 105 to 106 in the afternoon.

THURSDAY NIGHT
Mostly clear. Lows in the mid 70s.

FRIDAY
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Highest heat index readings 105 to 107 in the afternoon.

FRIDAY NIGHT
Partly cloudy. Lows in the upper 70s.

SATURDAY
Mostly sunny. Slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 90s. Chance of precipitation 60 percent. Heat index readings 105 to 107.

SATURDAY NIGHT
Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid 70s.

SUNDAY
Partly sunny. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of precipitation 30 percent. Highest heat index readings 105 to 106 in the afternoon.

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


UPPER ST. MARTIN 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 
                JUL 28-AUG 1 JUL 30-AUG 5    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   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

Sunday July 22, 2018 the 203th Day of Year

---------------------------------------------------
SUN
Declination 20.070000
Distance 0.999716 AU
Rise 07:18 EDT Set 21:11 EDT
Transit Meridian 14:14 EDT
Civil Twilight Begins 06:52 EDT Ends 21:37 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

////////////////////////////
JULY 22ND...HISTORIC WEATHER EVENTS
...1901...
Richmond, Kentucky's hottest temperature on record: 108 degrees. 
(NWS Louisville)
...1918...
A single bolt of lightning struck 504 sheep dead in their tracks at the
Wasatch National Forest in Utah. Sheep often herd together in storms, and
as a result the shock from the lightning bolt was passed from one animal to
another. (David Ludlum)
...1986...
Hurricane Estelle passed 120 miles south of the Hawaiian Islands creating a
ten to twenty foot surf. The large swells resulted from a combination of
high tides, a full moon, and 50 mph winds. The hurricane also deluged Oahu
Island with as much as 6.86 inches of rain on the 24th and 25th of the
month. (Storm Data)
...1987...
Barrow AK receives 1.38 inches in 24 hours on the 21st and 22nd, an
all-time record for that location. The average annual precipitation for
Barrow is just 4.75 inches. Thunderstorms in Montana produced 4 to 6 inches
of rain in Glacier County causing extensive flooding along Divide Creek.
Missoula MT received 1.71 inches of rain in 24 hours, a record for the
month of July. (The National Weather Summary) (The Weather Channel)
...1988...
Six cities in the south central U.S. reported record low temperatures for
the date, including Pueblo CO with a reading of 48 degrees. Thunderstorms
over the Atlantic Coast Region drenched Wilmington NC with 6.49 inches of
rain in about eight hours. (The National Weather Summary)
...1989...
Showers and thunderstorms prevailed across the southeastern third of the
country. Afternoon thunderstorms in Florida produced wind gusts to 86 mph
at Zephyrhills, and gusts to 92 mph at Carrollwood and Lutz. Thunderstorm
winds gusting to 69 mph at Crystal Lake damaged nineteen mobile homes.
(Storm Data) (The National Weather Summary)
...1995...
A Louisville man was slightly injured when lightning struck a utility pole 
and traveled through the phone lines into his living room. Lightning also 
damaged a house in Bardstown (Nelson County). (NWS Louisville)
========================================================================
Lexington Area  (ThreadEx Station)
Daily Almanac
Date: Jul 22, 2011

Daily Values         Observed    Normal       Record/Year    Prev Year
Max Temperature           -         86        102 in 1901          89
Min Temperature           -         67         50 in 1947          71
Avg Temperature           -         77       88.5 in 1983        80.0
Precipitation             -       0.15       2.35 in 1892        0.01
New Snowfall              -        0.0        0.0 in 2010+        0.0
Snow Depth                -          -          0 in 2010+          0
HDD (base 65)             -          0          4 in 1947           0
CDD (base 65)             -         12         24 in 1983          15

Month-To-Date        Observed    Normal       Record/Year    Prev Year
Avg Max Temperature    88.0       85.9       95.6 in 1936        87.6
Avg Min Temperature    68.3       66.1       59.8 in 1947        67.5
Avg Temperature        78.2       75.9       82.1 in 1936        77.5
Total Precipitation    3.88       3.49       9.56 in 1896        5.45
Total Snowfall          0.0        0.0        0.0 in 2011         0.0
Avg Snow Depth            0          -          0 in 2010           0
Total HDD                 0          1         10 in 1972           0
Total CDD               283        244        383 in 1936         282

+ indicates record also occurred in previous years (last occurrence listed).

This station's record may include data from more than one, possibly incompatible, 
locations. It reflects the longest available record for the Lexington Area.
Normals used in this product are from LEXINGTON BLUEGRASS AP

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