Cold temperatures and brisk west winds combined to produce bitterly cold wind chills across north-central Pennsylvania.
Every event with a place to put it; 13 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CTP wrote it up.
Cold temperatures and brisk west winds combined to produce bitterly cold wind chills across north-central Pennsylvania.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before the first event at Feb 16, 2:47 AM EST, 2 hours 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 247 AM EST FRI FEB 16 2007 .SHORT TERM /TODAY THROUGH SUNDAY/... KJST AND KDUJ HAVE BEEN DANCING AROUND WIND CHILLS OF MINUS 15 THIS MORNING...AND TEMPS ARE ONLY GOING TO GET SLIGHTLY COOLER THROUGH SUNRISE. SO HAVE ISSUED A WIND CHILL ADVISORY FOR THE NRN TIER AND LAURELS UNTIL 11 AM. HAVE HELD TEMPS BELOW EVEN THE COOLEST MOS GUIDANCE TODAY AND TONIGHT...AS SNOWPACK AND WESTERLY FLOW KEEP IT COLD. EVEN THOUGH THE WEST WINDS WILL SQUEEZE OUT A FEW FLAKES FROM THE CLOUDS IN THE WESTERN HIGH TERRAIN...THERE SHOULD NOT BE ANY ACCUMS...AND HAVE JUST HELD MENTIONS OF FLURRIES IN PLACE TODAY. SKIES TRY TO CLEAR OUT FROM S TO N TONIGHT...BUT HIGH CLOUDS ROLL IN AT THE SAME TIME. A SHORTWAVE WITH A BIT OF A SFC REFLECTION WILL MOVE DOWN THE EAST SIDE OF THE WESTERN CONUS RIDGE AND CROSS THE MIDWEST FRI NIGHT AND LIGHT SNOW FROM THIS GUY WILL NEAR OUR WESTERN BORDER BY NOON ON SATURDAY. BUT...IT THEN LOSES IT/S IDENTITY WITH LITTLE MOISTURE HELP...AND A TRACK OF THE VORT MAX THAT IS JUST TOO FAR SOUTH TO MAKE TOO MUCH NOISE. THIS HAS BEEN THE FORECAST FOR QUITE A FEW DAYS...AND WILL JUST FIRM THINGS UP A BIT...AND NUDGE POPS UP TO LIKELIES FOR THE NW 2/3RDS OF THE CWA FOR SAT AFTN AND EVENING. SREF AND MREF/GEFS PLUMES SHOW A DECENT AGREEMENT AMONG THE MEMBERS THAT WE SHOULD GET AN INCH OR TWO FOR THE WESTERN HIGHLANDS AND A DUSTING TO AN INCH FOR THE RIDGE AND VALLEY REGION AND NERN MTS...AND NOTHING/FLURRIES IN LANCASTER. WILL THEREFORE KEEP ONLY A LOW CHC POP IN THE SE. ANY PRECIP FROM THIS CLIPPER WILL BE OVER BY SUNDAY MORNING. A LITTLE UPSLOPE FLOW COULD SQUEEZE OUT SCT SHSN IN THE WEST ON SUNDAY. WILL HOLD TEMPS AS THEY WERE FOR SAT INTO SUNDAY...JUST SLIGHTLY COOLER THAN MAV MOS. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... NO CHANGES TO SPEAK OF HERE. BUT A LITTLE COMMENTARY ON THE WELL- ADVERTISED PATTERN CHANGE. IT IS STILL LOOKING LIKELY - BUT ONLY FOR A VERY BRIEF TIME. THE TEMPS WON/T BE THAT MUCH MILDER ANYTIME SOON WITH DEEP SNOWPACK IN PLACE AND HEIGHTS/THICKNESSES THAT DON/T LOOK TOO FANTASTIC. MREF/GEFS MEAN DOES PUT US ABOVE NORMAL FOR 8H TEMPS LATE NEXT WEEK...IT WAGGLES RIGHT BACK TO SLIGHTLY BELOW NORMAL AROUND DAY 12. && .AVIATION /07Z-06Z/... WESTERLY FLOW OVER THE HIGHER ELEVATIONS IS SQUEEZING OUT LIGHT SNOW WITH ALTERNATING IFR TO MVFR CONDITIONS AT KBFD AND KJST. PRESSURE GRADIENT BETWEEN A 964 MB LOW NEAR RIMOUSKI QUEBEC AT THE MOUTH OF THE ST LAWRENCE RIVER AND A 1033 MB HIGH OVER EASTERN OKLAHOMA HAS ALLOWED WINDS TO CONTINUE IN THE 10 TO 20 KT RANGE WITH GUSTS TO 25 KT AT TIMES. A SLIGHT DECEEASE IN WIND SPEEDS AFTER 12Z IS LIKELY AS THE SURFACE HIGH BUILDS INTO THE MID ATLANTIC BUT WILL STILL SEE SOME GUSTS TO 20 KTS OVER THE HIGHER ELEVATION AIRFIELDS. VFR CONDITIONS WILL CONTINUE THROUGH THE END OF THE FORECAST PERIOD AS HIGH PRESSURE MOVES INTO THE REGION. && .CTP WATCHES/WARNINGS/ADVISORIES... WIND CHILL ADVISORY UNTIL 11 AM EST THIS MORNING FOR PAZ004>006-010>012-017-018-024-033-037-041-042. && SHORT TERM...DANGELO LONG TERM...DANGELO AVIATION...TYBURSKI
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 310 AM EST FRI FEB 16 2007 PAZ004>006-010>012-017-018-024-033-037-041-042-170815- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-CAMBRIA-SOMERSET-TIOGA-NORTHERN LYCOMING-SULLIVAN- 310 AM EST FRI FEB 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT WIND CHILLS WILL BE 10 TO 20 BELOW THIS MORNING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. PAZ019-025>028-034>036-045-046-049>053-056>059-063>066-170815- SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-BEDFORD-FULTON- FRANKLIN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- 310 AM EST FRI FEB 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. DANGELO
The national radar mosaic for the moment the first event began.
13 extreme cold/wind chill. Local standard time, as filed.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
West winds of 10 to 20 mph, combined with low temperatures in the single digits, produced wind chill readings around 15 degrees below zero.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2007Every state in 2007This day in weather historyWarnings in Pennsylvania, February 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 13090, 13091, 13092, 13093, 13094, 13095, 13096, 13097, 13100, 13101, 13102, 13103, 13104.