Rounds of heavy rain to end the week

A Flash Flood Watch is in effect for South Mississippi

FORECAST VIDEO: 12-28-2018 Coastal showers through noon today. Wet for New Year's?

SOUTH MISSISSIPPI (WLOX) - A Flash Flood Watch is in effect for coastal Mississippi through noon Friday due to the potential for heavy rainfall. There will be several rounds of rain showers in the coming days for our region.

ROUND ONE:

  • When: through Noon Friday
  • What: Periods of rain, heavy at times.  A chance for thunderstorms as well.
  • Rainfall: Up to three additional inches on Friday
  • Impacts: Isolated flash flooding possible. Wet roads and poor visibility at times due to heavy rain may cause travel delays. 
  • Severe Weather: The risk for severe storms is very low. But, one or two strong thunderstorms will be possible before 9 AM.

As of 6 AM Friday, here's a look at how much rain has fallen since Thursday. Coastal Mississippi saw between one &...

Posted by Meteorologist Wesley Williams on Friday, December 28, 2018

ROUND TWO:

  • When: Saturday and Sunday
  • What: On and off scattered showers with a slight chance for thunderstorms; some rain-free hours too
  • Rainfall: Up to one inch of moderate rainfall
  • Impacts: Wet weather at times may lead to weekend travel delays, already rain-soaked soils may more easily flood

The second round will be Saturday through Sunday as a few scattered showers stream in from the Gulf of Mexico. The rainfall should generally be lighter than Round One but a few downpours will be possible. Expect some rain-free hours on both days though so it shouldn’t be a complete weekend washout. This round does not appear to bring a credible threat for severe, damaging, weather.

ROUND THREE:

  • When: New Year’s Eve Monday and New Year’s Day Tuesday
  • What: More on and off rain showers with a chance for thunderstorms, perhaps a squall line
  • Rainfall: Around one inch of rainfall, lightning, and downpours
  • Impacts: Showers may interrupt party plans on New Year Eve, especially around the afternoon and evening, and on New Year’s Day too.

Perhaps the final round of rain showers is expected Monday into Tuesday, right as the new year rings in. There is still some uncertainty with how this round will develop. But, one computer model is projecting a squall line of downpours and possible thunder to arrive around sunset Monday. It is too early to tell if this round will bring a threat for severe, damaging, weather. But, any additional downpours on already rain-soaked grounds could easily re-trigger flooding issues.

Our weather pattern may become chillier by the middle of next week as a cold front arrives around next Tuesday or Wednesday.

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