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De Soto Parish, LA Weather and Climate Synopsis

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National Weather Service Shreveport LA
1025 AM CDT Sat Apr 20 2024

...New UPDATE...

.UPDATE...
Issued at 1016 AM CDT Sat Apr 20 2024

Huge uptick in convection across our northwest half this morning
as isentropic forcing much earlier this morning is now being
supplemented with large scale forcing well in advance of an upper
level trough still upstream of the Texas Hill Country. While low
level instability is of no concern given the relatively cool post
frontal temperatures currently in place, elevated MUCAPE values
between 500-1000 J/KG are combining with 7-7.5 deg/km mid-level
lapse rates and near 40kts of Deep Layer Bulk Shear to produce
organized convection near and northwest of the I-30 Corridor
already this morning with a few severe thunderstorm warnings
becoming necessary for large hail. These storm will remain
elevated today and thus, it appears that large hail will continue
to be the main threats with any severe convection but at least
small hail (pea to dime size) will be common with the stronger
convection for the remainder of the day and into at least the
evening hours. 

For the update, expanded categorical pops a little further north
and east through the remainder of the daytime hours to mimic
current trends and latest HRRR data but did keep our southeast
zones in high chance pops only as the more widespread rainfall
will likely not begin impacting these areas until this evening and
overnight. 

Did make some temperature changes as our northern and northwest
zones have likely already reached their high temperatures for the
day and the same can be said for areas to the northeast as this 
large mass of precipitation moves east through the day. 

Updated forecast package already sent...13.

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

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Regional Hourly Observations For DE SOTO County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel
Current Agricultural Weather Conditions in Louisiana
Based on observations at 1000am CDT, Saturday April 20, 2024

Across Louisiana...temperatures are near 80 degrees south. Current sky condition is partly sunny south. In the south, relative humidity is near 71%, and the dew point is near 70 degrees. Winds are unavailable north. Winds are unavailable central. Winds are coming from the north at 6 mph in the south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 81 degrees at Slidell. The lowest temperature is 79 degrees at Houma and 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 DE SOTO County, LA

626 AM CDT Sat Apr 20 2024

 DAY ONE  Today and tonight.

An upper-level disturbance shifting across the region today through
tonight will be the catalyst for widespread showers and thunderstorms
with periods of heavy rainfall. Look for rainfall amounts of one to 
three inches with isolated higher amounts possible. This may result 
in additional rises on area waterways through early next week. Poor
drainage and flood prone areas will also be susceptible to localized
flash flooding.

 DAYS TWO THROUGH SEVEN  Sunday through Friday.

An upper-level disturbance will continue to shift east of the region
on Sunday with some lingering rain showers in the morning gradually 
ending by the afternoon. Dry conditions will resume for much of next
week with the next chance of thunderstorms possibly returning by the
end of the week. However, any threat of severe weather is uncertain
at this time but will be closely monitored over the coming week.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For DE SOTO Parish, LA
1016 AM CDT Sat Apr 20 2024

THIS AFTERNOON
Showers and thunderstorms. Cooler with highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 90 percent.

TONIGHT
A chance of thunderstorms. Showers. Locally heavy rainfall possible in the evening. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 20 mph. Chance of rain near 100 percent.

SUNDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30 percent.

SUNDAY NIGHT
Clear. Lows in the lower 40s. North winds 5 to 10 mph.

MONDAY
Sunny. Highs in the lower 70s. East winds around 5 mph.

MONDAY NIGHT
Mostly clear. Lows in the upper 40s.

TUESDAY
Sunny. Highs in the upper 70s.

TUESDAY NIGHT
Mostly clear. Not as cool with lows in the upper 50s.

WEDNESDAY
Partly cloudy. Highs around 80.

WEDNESDAY NIGHT
Partly cloudy. Lows around 60.

THURSDAY
Mostly cloudy. Highs in the lower 80s.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s.

FRIDAY
Mostly cloudy. A slight chance of showers and thunderstorms in the afternoon. Windy with highs in the mid 80s. Chance of rain 20 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


DE SOTO 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 
                   APR 25-29 APR 27-MAY 3    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:                                                                    
 Precipitation:                                                                    

....  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 April 20, 2024 the 111th Day of Year

---------------------------------------------------
SUN
Declination 12.050000
Distance 0.999719 AU
Rise 07:33 EDT Set 20:41 EDT
Transit Meridian 14:06 EDT
Civil Twilight Begins 07:08 EDT Ends 21:06 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

APRIL 20TH
HISTORIC WEATHER EVENTS
...1901...
A spring storm produced unusally heavy snow in northeast Ohio. Warren
received 35.5 inches in thirty-six hours, and 28 inches fell at Green Hill.
Akron OH established April records of 15.6 inches in 24 hours, and 26.6
inches for the month. Pittsburgh PA established April records of 12.7
inches in 24 hours, and 13.5 inches for the month. (David Ludlum) (The
Weather Channel)
...1920...
Tornadoes in Mississippi and Alabama killed 219 persons. (David Ludlum)
...2002...
An unseasonably warm and moist air mass had settled across eastern Kentucky 
leading to record breaking temperatures at the Jackson Weather Office and the 
London Corbin Airport between the 16th and 21st of April. Jackson saw several 
days in a row with record high temperatures as well as maximum low records. On 
the 19th the mercury soared to a record high of 89 degrees at Jackson and a 
record tying 87 degrees at London. The low temperature at Jackson was a balmy 69 
degrees good enough for a daily as well as a monthly maximum low temperature 
record. (NWS Jackson)

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