IMPACT MORNING: Watch for slick spots, black ice on untreated roads in south-central Pennsylvania
547. IT IS AN IMPACT. MORNING. AND THAT’S BECAUSE WE HAVE TEMPERATURES IN THE SINGLE DIGITS AND TEENS. AND WITH THAT BURST OF SNOW YESTERDAY EVENING THAT IS LEADING TO SOME ROADS STILL BEING SNOW COVERED THIS MORNING. AN ICY SPOTS ON OTHER ROADS. SO I WANT YOU TO USE CAUTION. REDUCE YOUR SPEED. EVEN IF THE ROADS APPEAR WET, THERE STILL COULD BE SOME SLICK SPOTS, ESPECIALLY WITH TEMPERATURES IN THE SINGLE DIGITS AND TEENS. SO JUST TAKE IT SLOW IMPACTS GO UNTIL 10 A.M. AND AT THAT TIME, THE SUN SHOULD BE HIGH ENOUGH IN THE SKY TO HELP MELT THE ROADS. WE’RE GOING TO GET ABOVE FREEZING TODAY FOR THE FIRST TIME IN A FEW DAYS. TEMPERATURE CHECK THREE DEGREES IN LEWISTOWN, ONE IN YORK. THAT’S THE ACTUAL AIR TEMPERATURE. IT’S NINE IN HARRISBURG, 11 IN LANCASTER, AND WE HAVE 15 RIGHT NOW IN CHAMBERSBURG WITH CALM WINDS. SO WHERE THE WINDS ARE CALM, YOU’RE GOING TO FIND THOSE REALLY COLD TEMPERATURES, EVEN WITH A LITTLE BREEZE LIKE SIX MILES PER HOUR IN CARLISLE. LOOK, WHAT THAT DOES TO YOUR TEMPERATURE BRINGS YOU DOWN TO A FEELS LIKE TEMPERATURE OF ONE. FOR OUR FORECAST TODAY, IT’S AN IMPACT. MORNING UNTIL 10 A.M., FRIGID SUNSHINE, SLICK ROADS. PLEASE USE CAUTION. THIS AFTERNOON WILL BE DRYING OUT NICELY. TEMPERATURES GET ABOVE FREEZING. WE GET THAT SUNSHINE FOR MOST OF THE DAY AND THEN THIS EVENING, MOSTLY CLEAR ROADS WILL BE DRY. WE SHOULDN’T HAVE ANY PROBLEMS FOR THE EVENING COMMUTE TONIGHT. CLOUDS INCREASE, NOT AS COLD TEMPERATURES WILL BE 20 TO 24 DEGREES. GETTING A LITTLE BREAK THERE AND FOR TOMORROW, MOSTLY CLOUDY, BUT MILDER OVERALL. LOOK AT THE HIGHS 42 TO 46. IT’S BEEN A WHILE SINCE WE’VE SEEN NUMBERS THAT WARM. YOU CAN THANK SOUTHERLY WINDS AROUND HIGH PRESSURE HELPING TO BRING IN THAT MILDER AIR. RIGHT NOW HIGH PRESSURE IS STATIONED TO OUR SOUTH. CLEAR SKIES FOR HUNDREDS OF MILES. ALL OF THE RAIN OR SNOW SHOWERS WITH LITTLE THERE ARE ARE WELL UP TO OUR NORTH, SO WE ARE GOOD TO GO AFTER THE MORNING COMMUTE. I DO SEE IMPROVING CONDITIONS. IF YOU CAN DELAY YOUR TRAVEL, YOU’LL HAVE BETTER ROAD CONDITIONS LATER TODAY. SO HERE’S THE PREDICTOR SHOWING MOSTLY SUNNY SKIES FOR THROUGHOUT THE DAY. AS WE HEAD INTO TONIGHT, WE’LL SEE PARTLY CLOUDY CONDITIONS AND THEN CLOUDS THICKEN TOWARDS SUNRISE TOMORROW. LOTS OF CLOUDS. THERE’S EVEN A WEAK BOUNDARY THAT COMES THROUGH WITH MAYBE A SPRINKLE, BUT TEMPERATURES WILL BE WELL INTO THE 40S, SO I DON’T FORESEE ANY PROBLEMS TOMORROW. FOR THURSDAY, THE CLOUDS STILL MAY HANG AROUND, BUT WATCH THIS THURSDAY EVENING. HERE COMES SOME RAIN. AND THEN THERE’S A COLD FRONT OUT TO THE WEST THAT WILL SWEEP THROUGH THURSDAY NIGHT. SO WE GET ALL RAIN OUT OF THIS NEXT SYSTEM. KIND OF HARD TO BELIEVE AFTER HOW COLD IT’S BEEN, BUT IT WILL WARM UP AT THE END OF THE WEEK. OUR HIGHS ON THURSDAY ARE GOING TO BE IN THE UPPER 40S. WE COULD TOUCH 50 DEGREES IN A FEW SPOTS THURSDAY NIGHT INTO FRIDAY MORNING, SO I DO SEE THE HEAVIEST RAIN COMING THROUGH OVERNIGHT. ALL OF THIS EXITS AROUND SUNRISE OR SHORTLY THEREAFTER. ON FRIDAY, WE COULD GET A HALF INCH TO AN INCH OF RAIN, AND THEN TEMPERATURES FALL ON FRIDAY FROM THE 40S IN THE MORNING DOWN INTO THE 30S BY AFTERNOON. BUT I DO THINK WE’LL HAVE SUFFICIENT TIME TO DRY OUT SATURDAY AROUND 40, WHICH IS AVERAGE FOR THIS TIME OF THE YEAR. SUNDAY WE BOUNCE BACK ABOVE AVERAGE FOR THE FIRST DAY OF WINTER, A LITTLE COOLER ON MONDAY, BUT I DO SEE MORE SEASONABLE TEMPERATURES TUESDAY, CHRISTMAS EVE, AND CHRISTMAS DAY. THERE MAY BE A CHANCE FOR A FEW
IMPACT MORNING: Watch for slick spots, black ice on untreated roads in south-central Pennsylvania
Updated: 6:17 AM EST Dec 16, 2025
Slick, icy roads are creating hazardous travel conditions for commuters across south-central Pennsylvania, making Tuesday an Impact Morning. The Impact Morning is in effect for all of the Susquehanna Valley until 10 a.m. Slippery morningTemperatures: In the single digits and low teens.Travel Impacts: Some roads are snow-covered while others are wet and treated; Watch for slick spots and black ice. Drivers are advised to allow for extra time and to go slowly. Afternoon: Mostly sunny skies; Highs will reach 34 degrees, which is still below the average high of 43. Night: Lows fall to the low 20s with partly cloudy skies.School delaysMore than 100 schools have announced two-hour delays on Tuesday morning due to the slick, icy roadways. See the full list of closings and delays here. Stay weather aware with WGAL’s online toolsRADAR: Track severe weather with WGAL’s interactive radar.LOCATION-BASED ALERTS: Instructions for activating our customized weather alerts are here.CLOSINGS: When severe weather strikes, see if businesses, churches or organizations have closed or delayed.ROAD CLOSURES: Our interactive traffic map is always updated with crashes, construction and road closures. It even has a weather radar overlay.EMAIL ALERTS: We’ll send you daily updates, or just alerts when severe weather is headed your way.HOUR-BY-HOUR: See what you can expect every day with the hourly forecast.WEEKEND WEATHER: Know what to expect before you make your plans.10-DAY FORECAST: Check WGAL’s extended forecast here.
Slick, icy roads are creating hazardous travel conditions for commuters across south-central Pennsylvania, making Tuesday an Impact Morning.
The Impact Morning is in effect for all of the Susquehanna Valley until 10 a.m.
Slippery morning
Temperatures: In the single digits and low teens.
Travel Impacts: Some roads are snow-covered while others are wet and treated; Watch for slick spots and black ice.
Drivers are advised to allow for extra time and to go slowly.
Afternoon: Mostly sunny skies; Highs will reach 34 degrees, which is still below the average high of 43.
Night: Lows fall to the low 20s with partly cloudy skies.
School delays
More than 100 schools have announced two-hour delays on Tuesday morning due to the slick, icy roadways.
See the full list of closings and delays here.
Stay weather aware with WGAL’s online tools