BLACKBURN CBS NEWS NEW YORK. >>> MARY, IF PEOPLE ARE DRIVING BACK OR DRIVING OUT FOR MEMORIAL DAY CELEBRATIONS, THEY ARE HITTING THE ROAD RIGHT NOW AND DEFINITELY SEEING A LOT OF FOG LIKE WE WORK WHEN WE WERE COMING IN. >> IT IS VERY FOGGY. WE HAVE A DENSE FOG ADVISORY UNTIL 8:00. VISIBILITY IS REDUCED LESS THAN A MILE FROM MANY AREAS. BEAVER, FRANKLIN, BUTLER, PITTSBURGH AND ALSO WASHINGTON. RINGS ARE CLEARING UP IN LATROBE AT THIS ADVISORY ACROSS THE REGION GOES UNTIL 8:00. TODAY, A KDKA FIRST ALERT WEATHER DAY FOR THE START OF THE DAY BECAUSE OF THE FOG . WE HAVE DRIVE TIME BUT THEN WE ARE WATCHING THESE STORMS, THE CLUSTER MOVING IN AND THAT WILL ARRIVE RIGHT AROUND DINNERTIME, LEST INTO THE EVENING. SO ANOTHER KDKA FIRST ALERT WEATHER DAY STARTING TONIGHT, LASTING OVERNIGHT AND GOING INTO MEMORIAL DAY. BACK TO BACK KDKA FIRST ALERT WEATHER DAYS. RIGHT NOW ON FIRST ALERT WEATHER RADAR WE'RE LOOKING QUIET BUT WHEN WE TALK ABOUT SEVERE OUTLOOK WE'RE LOOKING AT THE ISOLATED RISK. THAT IS WHAT WE WERE UNDER YESTERDAY AND WE HAD FLASH FLOOD WARNINGS, A TORNADO WARNING, SEVERE THUNDERSTORM WARNINGS AND WE HAD STORM DAMAGE AND HAIL. THAT IS WHAT WE ARE LOOKING TODAY AND TOMORROW. MORE ISOLATED RISK AND STORMS SHIPPED ARE EAST . TODAY, EXCESSIVE RAINFALL AND AGAIN TOMORROW WITH WE HAVE BACK BACK KDKA FOR OTHER DAYS AND DAMAGING WIND BEING THE BIGGEST THREATS. OVER 60 MILES AN HOUR COULD BE WITH HAIL. TEMPERATURES IN THE LOW TO MID 80s TODAY AND TOMORROW BUT WE ARE LOOKING AT THE POTENTIAL FOR ABUSE NORMS. WIND DAMAGE, HAIL AND ISOLATED TORNADO CANNOT BE ROLLED OUT. -- RULED OUT . NOT JUST FOR TODAY BUT ALSO TOMORROW. WE HAVE OVERNIGHT STORMS BUT THEN TOMORROW INTO THE AFTERNOON WE HAVE ANOTHER ROUND OF SCATTERED SHOWERS AND STORMS AND A LARGE HAIL CANNOT BE RULED OUT AND WE HAD HAIL YESTERDAY. 65 RIGHT NOW IN PATCHY FOG . GIVE YOURSELF EXTRA TIME. TEMPERATURES AND DEW POINTS CLOSE TOGETHER. UPPER 50s, LOW TO MID 60s BUT LOOKING AT OUR HOURLY GRAPH WE ARE LOOKING AT A LOT OF STORMS. THE CHANCE ARRIVING AROUND 5:00, 6:00 UNTIL 9:00. WE SEE THINGS EITHER BRIEFLY BUT THEN RIGHT AROUND MIDNIGHT, THROUGH TOMORROW MORNING, WE HAVE THE RISK FOR STRONG TO SEVERE STORMS. TIMING IT OUT HOUR BY HOUR, BY 3:00, A SPOTTY SHOWER CANNOT BE RULED OUT AND MOST OF US STAY DRY. CLOUDS INCREASE AROUND 6:00 AND AREAS TO THE SOUTHWEST WILL SEE THIS LINE MOVING IN AND FIRST AND WE SEE THE HEAVY DOWNPOURS STARTING TO MOVE NORTH AND EAST. AGAIN UNTIL MIDNIGHT AND OVERNIGHT WE HAVE ISOLATED STRONG TO SEVERE STORMS AND THEN BY THE TIME WE GET TO MONDAY AFTERNOON, WE ARE SEEING A FEW OF THOSE BREAKUP AND SOME COULD POTENTIALLY BE SEVERE. ALSO TUESDAY, ANOTHER KDKA POSSIBLE FIRST ALERT WEATHER DAY WITH STORMS THAT WE WILL FOCUS ON TODAY AND TOMORROW FIRST. LOOKING AT OUR SEVEN-DAY FORECAST AFTER THESE STORMS, MAKE SURE YOU HAVE A BACKUP PLAN TO GO INSIDE. WE'RE LOOKING AT TEMPERATURES IN THE LOW