REMINDER: The NickelBlock Forecasting app is available on both the Android and iOS store! You can download it for a constantly updated forecast, the best radar on the market, and the fastest alerts from the National Weather Service.
The Storm Prediction Center held the forecast overnight, leaving parts of the area under an Enhanced Risk for severe weather – a “3” on the 1-to-5 scale where “5” is the highest risk for the most significant severe weather.
That said, they did mention in their discussion that – depending on how the 12z data looked – they may need to revisit the forecast and increase the risk. Any movement in the risk would likely be across parts of Louisiana and far western Mississippi. I think the risk should hold for the i-59 corridor.
That said, whether or not they decide to increased (or decrease) the risk, doesn’t really change the potential impacts. It looks like just about everyone has a shot for some storms later tonight with brief heavy right, lightning, and gusty wind. Some storms may have some small hail, and other will have the potential to produce a tornado.
The timeline is – generally – between about 5pm and 2am. Storms will be isolated and scattered at first, and then a line of storms will slide through later this evening, before things clear out overnight and into tomorrow morning.
Below is a county-by-county breakdown for what to expect for the counties that are the heaviest users of the app. If you don’t see your county on there, please let me know and I can try to add it to the list.
MISSISSIPPI COUNTY-BY-COUNTY BREAKDOWN
LOUISIANA PARRISHES
Tangipahoa Parish
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Washington Parrish
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
St. Tammany Parrish
5p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
I-20 CORRIDOR
Rankin County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Simpson County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Scott County
6p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
Smith County
6p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
Jasper County
7p – 10p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
10p – 1a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
1a – 4a: Storms ending. Lingering rain and thunder possible.
Clarke County
8p – 11p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
11p – 2a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
2a – 5a: Storms ending. Lingering rain and thunder possible.
HWY 84 CORRIDOR
Lawrence County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Jeff Davis County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Covington County
6p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
Jones County
7p – 10p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
10p – 1a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
1a – 4a: Storms ending. Lingering rain and thunder possible.
Wayne County
8p – 11p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
11p – 2a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
2a – 5a: Storms ending. Lingering rain and thunder possible.
HWY 98 CORRIDOR
Pike County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Walthall County
5p – 8p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
8p – 11p: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, up to EF3 in strength.
11p – 2a: Storms ending. Lingering rain and thunder possible.
Marion County
5p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
Lamar County
6p – 9p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
9p – 12a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
12a – 3a: Storms ending. Lingering rain and thunder possible.
Forrest County
7p – 10p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
10p – 1a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
1a – 4a: Storms ending. Lingering rain and thunder possible.
Perry County
7p – 10p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
10p – 1a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
1a – 4a: Storms ending. Lingering rain and thunder possible.
Greene County
8p – 11p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
11p – 2a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
2a – 5a: Storms ending. Lingering rain and thunder possible.
HWY 26 CORRIDOR
Pearl River County
7p – 10p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
10p – 1a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
1a – 4a: Storms ending. Lingering rain and thunder possible.
Stone County
8p – 11p: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
11p – 2a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
2a – 5a: Storms ending. Lingering rain and thunder possible.
George County
9p – 12a: Showers and storms develop. Some storms may be strong to severe. Main concern at this point will be brief heavy rain, lightning, gusty wind, and small hail.
12a – 3a: A quick-moving line of storms will move through. Storms will have the potential to produce heavy rain, lightning, wind gusts up to 60mph, and small hail. Tornadoes will be possible, but they should be brief and EF2 or weaker.
3a – 6a: Storms ending. Lingering rain and thunder possible.
Thank you so much! Could you add Sharkey, Issaquena, and Washington counties please?