US Weekly Rainfall Departure		US Weekly Temperature Departure

440 AM CDT Sun May 18 2025

...New DISCUSSION...

.DISCUSSION...
Issued at 440 AM CDT Sun May 18 2025

Today through Tuesday Morning...

Current radar scans from this morning show a line of strong to 
severe thunderstorms propagating east across the Hwy 82 corridor. 
The chance for marginally severe thunderstorms will continue later 
this afternoon through late Monday evening as global guidance 
continues to show the frontal boundary stalling just to the north of 
our CWA with damaging winds and quarter size hail being the main 
hazards mainly north of I-20. HREF is beginning to show low 
probabilities (around 20-30%) for patchy fog development early this 
morning, particularly for portions of southeast MS. Quiet weather 
conditions will occur across the area early Tuesday morning as 
future global guidance continues to show the ridge axis beginning to 
slowly push east away from our forecast area giving us a small 
little break from the rain. 

Tuesday Afternoon through the Weekend...

The forecast for the extended period remains on track with no 
significant changes  A significant 1004mb low pressure system 
hovering over the Central Plains will push east towards the Ohio 
River Valley region Tuesday afternoon/evening. The associated cold 
front over southern Texas will track east towards the southeast 
region late Tuesday evening. This combined with southerly moisture 
flow from the Gulf, a mid-level jet moving into the area along with 
an unstable airmass in place will help increase bulk shear. This 
will allow for organized convection across our entire CWA. SPC has 
continued to highlight a 30% severe weather potential for Tuesday 
with higher confidence for northern portions of our CWA. There is 
still alot of uncertainty in regards to both the hazards and timing 
as this system is still several days away. We will keep you updated 
on any changes as we get closer. 

Storm chances will continue heading into Wednesday morning as the 
cold pushes southeast across our forecast area. Rain chances will 
start to diminish across the region looking ahead into Wednesday 
afternoon/evening with quiet conditions prevailing across our CWA by 
Thursday as the cold front tracks southeast out of our forecast area 
towards the Gulf Coast giving us a nice little break from the rain. 
Weather conditions will remain quiet heading into Friday with mostly 
to partly sunny skies through Saturday as a 1020mb sfc high pressure 
system builds over the southeast CONUS. Scattered showers/storms 
will make a return to the area by Sunday afternoon with daytime 
temperatures forecasted in the mid to upper 80s areawide. A couple 
of areas along and south of Hwy 84 could see highs in the low 
90s. /CR/ 

National Ag. Weather Outlook, International Ag. Weather Summary

Current Surface Map, [2nd Source TWC]

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Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.

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Regional Hourly Observations For LAMAR County
500 AM CDT SUN MAY 18 2025

MCCOMB         CLOUDY    75  73  93 S7        29.91F                  
NATCHEZ        CLOUDY    74  72  93 S5        29.92S                  
PINE BELT      CLOUDY    76  74  93 VRB6      29.95R                  

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel

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Current Agricultural Weather Conditions in Mississippi
Based on observations at 500am CDT, Sunday May 18, 2025

Across Mississippi...temperatures are near 71 degrees north, near 77 degrees central, and near 78 degrees south. Current sky conditions are partly cloudy north, cloudy central, and partly cloudy south. In the north, relative humidity is near 84%, and the dew point is near 66 degrees. In the central part of the state, relative humidity is near 90%, and the dew point is near 74 degrees. In the south, relative humidity is near 85%, and the dew point is near 74 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are calm north, where conditions are favorable for spraying. Winds are from the southwest at 6 mph central, where conditions are favorable for spraying. Winds are from the southwest at 8 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 78 degrees at Biloxi. The lowest temperature is 69 degrees at Greenville.

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Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map

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Hazardous Weather Outlook For LAMAR County
Hazardous report currently not available
NWS Severe Weather Map , Convective Outlook

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7-Day Forecast For LAMAR County, MS
442 AM CDT Sun May 18 2025

TODAY
Mostly cloudy early this morning, then becoming mostly sunny. Patchy fog early this morning. Highs in the lower 90s. South winds 5 to 10 mph.

TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog after midnight. Lows around 70. South winds 5 to 10 mph.

MONDAY
Patchy fog in the morning. Mostly sunny. Highs in the lower 90s. South winds 5 to 10 mph.

MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s. South winds 5 to 10 mph.

TUESDAY
Mostly sunny. Highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph.

TUESDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent.

WEDNESDAY
Mostly sunny. A chance of showers in the morning. Highs in the upper 80s. Chance of rain 40 percent.

WEDNESDAY NIGHT AND THURSDAY
Partly cloudy. Lows in the lower 60s. Highs in the mid 80s.

THURSDAY NIGHT THROUGH FRIDAY NIGHT
Mostly clear. Lows around 60. Highs in the lower 80s.

SATURDAY
Sunny. Highs in the upper 80s.

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

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Medium & Long Range Outlook For Mississippi

                          MISSISSIPPI                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   MAY 23-27 MAY 25-MAY 31    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below                                            
 Precipitation:     Normal        Above                                            

....  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

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Almanac Information

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Historical Weather And Climate Facts For Today

////////////////////////////
MAY 18TH...HISTORIC WEATHER EVENTS
...1825...
A tornado (said to have crossed all of the state of Ohio) smashed into the
log cabin settlement of Burlington, northeast of Columbus. (David Ludlum)
...1960...
Salt Lake City UT received an inch of snow. It marked their latest
measurable snowfall of record. (The Weather Channel)
...1980...
Mount Saint Helens (in Washington State) erupted spewing ash and smoke
sixty-three thousand feet into the air. Heavy ash covered the ground to the
immediate northwest, and small particles were carried to the Atlantic
coast. (David Ludlum)




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