By Kate Bilo

By Kate Bilo

PHILADELPHIA (CBS) — Just one day after a deadly tornado tore through the towns of Mayflower and Vilonia in Arkansas, a dangerous severe weather outbreak is underway once again, this time slightly to the east across portions of Mississippi, Alabama and Tennessee.

This situation is still underway, and already we’ve had a large tornado tear across the well-populated area of Tupelo, MS, with lots of damage reported. The situation will continue to be dangerous through this evening, and a tornado watch is underway in that area. That watch has been designated a PDS – Potentially Dangerous Situation – and the Storm Prediction Center has upped the risk to HIGH across this area. The Eyewitness Weather Team is monitoring this situation closely and we will continue to bring you updates via Twitter.

Closer to home, this same system will bring the threat for rain starting as early as tonight. A boundary off to the west will lift northward tonight, bringing light rain to the area, and a broad upper-level storm system will slowly meander in from the west over the next 48 hours. So once the rain starts, we’ll be seeing it for at least two days.

Rain will be spotty and generally light on Tuesday, but it’s a chilly, windy day with an east flow. Just a raw, wet day that will require the jackets, with highs only in the mid-50s.

Heavier rain is anticipated on Wednesday, and there is some indication that we could pick up 2-3″ of rain before it finally moves out late Wednesday night into Thursday morning. This could lead to the risk for some stream and creek flooding across the Delaware Valley.

While temperatures Wednesday will hold in the 50s, a surge of warmth arrives Thursday, sending temperatures right into the 70’s — which will feel great after two cold, wet days.

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