A storm system moving out of the Midwest brought heavy rainfall to the region, causing minor flooding.
Every event with a place to put it. 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.
A storm system moving out of the Midwest brought heavy rainfall to the region, causing minor flooding.
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 Mar 3, 3:45 AM EST, 1 hour 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 345 AM EST SAT MAR 3 2007 .SHORT TERM /TODAY THROUGH SUNDAY NIGHT/... WEAK...SECONDARY COLD FRONT LOCATED ACROSS NWRN PENN EARLY THIS MORNING WILL SLIDE SLOWLY EAST ACROSS THE STATE TODAY. THIS FRONT WAS ALSO THE DIVIDING LINE BETWEEN FREEZING/SUB FREEZING AIR AT 925 HPA. SHORT WAVE LIFTING NE FROM THE CENTRAL APPALACHIANS WITHIN THE LEFT EXIT REGION OF A 170 KT 300 HPA JET WAS PRODUCING A GRADUALLY EXPANDING AREA OF -SHRA/-SHSN FROM ERN KENTUCKY...NORTHEAST INTO SWRN SECTIONS OF PENN. THIS AREA OF UVVEL AND DEEPER MEAN RELATIVE HUMIDITY WILL SLIDE NE TODAY ALONG WITH AN ASSOCIATED AREA OF STEEPER MID LVL LAPSE RATES ON THE ORDER OF 7.5C/KM. THE GREATEST COOLING ALOFT...ASSOCIATED WITH THE APPROACH OF THE MAIN UPPER SHORT WAVE FROM THE MIDWEST...BEGINS THIS AFTERNOON. MID/UPPER LVL THERMAL TROUGH CROSSES THE STATE TONIGHT WITH THE MEAN LOW/MID LVL FLOW VEERING FROM THE WSW TO THE NORTHWEST. THIS WILL CREATE PLENTY OF CLOUDS AND NUMEROUS MTN SNOW SHOWERS WILL A FEW INCHES OF ACCUMULATION FROM LATER TODAY THROUGH SUNDAY MORNING. SNOW SHOWERS WILL BECOME MORE SCATTERED BY LATE SUNDAY AFTERNOON AS THE MEAN LOW/MID LVL SHEAR INCREASES AND THE SUBSIDENCE INVERSION BASE GRADUALLY LOWERS TO AOB 5 KFT AGL. WILL BE GOING SLIGHTLY ABOVE STE/MAV POPS FOR THE WRN/NRN MTNS TODAY INTO SUNDAY...LEANING TWD THE WETTER FWC GUIDANCE WHICH MESHES WELL WITH SURROUNDING WFO IN TERMS OF QPF AND TOTAL SNOW AMOUNTS IN THE SUB-ADVISORY RANGE. EAST OF THE ALLEGHENY PLATEAU...SCATTERED...MIXED LIGHT SHSN/RA WILL OCCUR WITH JUST A FEW LIGHT RAIN SHOWERS POSSIBLE ACROSS THE LOWER SUSQ VALLEY. STE MOS GUIDANCE IS VERY SIMILAR WITH OTHER OPERATION MOS POP VALUES /GENERALLY IN THE CHC OR BELOW RANGE/ FOR KIPT...KUNV AND KMDT THROUGH SUNDAY. SFC MAX/MIN TEMPS WILL SHOW A STEADY DOWNTREND DURING THE NEXT 48 HOURS AND SINK TO JUST BELOW NORMAL FOR SUNDAY THROUGH MONDAY. && .LONG TERM /MONDAY THROUGH FRIDAY/... THE MAIN ACTION DURING THIS PERIOD APPEARS TO BE WITH A SURGE OF ARCTIC AIR MONDAY NIGHT AND TUESDAY...ACCOMPANIED BY A POCKET OF 850 TEMPS IN THE RANGE OF 2-3 STANDARD DEVIATIONS BELOW NORMAL FROM NERN PENN INTO NEW ENGLAND. THIS WILL LEAD TO WELL BELOW NORMAL TEMPS FOR TUESDAY WITH JUST A FEW SNOW SHOWERS...OR EVEN A HEAVIER SNOW SQUALL AT THE LEADING EDGE OF THE ARCTIC AIR. ANOTHER WEAK SHORT WAVE IN THE NRN BRANCH OF THE JET WILL MOVE FROM THE UPPER MIDWEST TO OUR REGION DURING THE MIDWEEK AND COULD BRING A PERIOD OF LIGHT SNOW. MAINLY DRY WEATHER WILL OCCUR WED NIGHT AND THURSDAY AS UPPER HEIGHTS RISE...THEN A CHC OF RAIN SHOWERS SE...AND RAIN OR SNOW SHOWERS ACROSS THE REMAINDER OF THE FCST AREA THURSDAY INTO FRIDAY. MREF HOLDS OF MORE SIGNIF QPF UNTIL THE APPROACH OF A MORE AMPLIFIED/PROGRESSIVE SHORT WAVE NEXT WEEKEND. && .AVIATION /09Z-06Z/... MAINLY VFR CONDITIONS OVERNIGHT AND EARLY SAT. FEW RAIN SHOWERS ACROSS FAR SE...AND ISOLATED SNOW SHOWERS ACROSS THE NW. WINDS WILL PICK UP NOW AND THEN...MAINLY AFTER SUNRISE. N AND W AREAS WILL SEE MORE IN THE WAY OF MVFR CONDITIONS TOWARD LATE AFTERNOON...AS WINDS ALOFT SHIFT MORE TO THE W AND NW. SOME SNOW SHOWERS AND FLURRIES WILL OCCUR AS WELL. && .CTP WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...LAMBERT LONG TERM...LAMBERT AVIATION...MARTIN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 539 AM EST FRI MAR 2 2007 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-031045- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON- CUMBERLAND-ADAMS-YORK-LANCASTER- 539 AM EST FRI MAR 2 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT A FLOOD WATCH REMAINS IN EFFECT FOR ALL OF CENTRAL PENNSYLVANIA UNTIL 1 PM THIS AFTERNOON. RAINFALL OVERNIGHT AND EARLY TODAY...RANGING BETWEEN THREE QUARTERS OF AN INCH AND AN INCH AND ONE HALF...WILL LEAD TO SIGNIFICANT RISES ON THE LARGER STREAMS AND RIVERS ACROSS THE REGION. LOCALIZED FLOODING IS POSSIBLE...ESPECIALLY ON SMALLER STREAMS AND THROUGHOUT POOR DRAINAGE AREAS ACROSS THE LOWER SUSQUEHANNA VALLEY AND OVER SCHUYLKILL COUNTY...WHERE ADDITONAL RUNOFF FROM SNOW MELT AND POSSIBLE ICE JAMS WILL OCCUR. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NUMEROUS SNOW SHOWERS WITH LIGHT TO MODERATE ACCUMULATIONS WILL OCCUR TONIGHT THROUGH SATURDAY NIGHT ACROSS THE NORTHERN AND WESTERN MOUNTAINS OF PENNSYLVANIA. LATER ISSUANCES OF SNOW...OR WINTER WEATHER ADVISORIES...MAY BE REQUIRED FOR PART OR ALL OF THE NORTHERN AND WESTERN MOUNTAINS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO REPORT VIA OUR WEBSITE...ANY FLOODING...ALONG WITH SIGNIFICANT RAINFALL AMOUNTS DURING THE PAST 24 HOURS OF OVER ONE INCH. ALSO...PLEASE RELAY REPORTS OF SNOWFALL AMOUNTS OF 3 INCHES OR GREATER TONIGHT THROUGH SATURDAY NIGHT. LAMBERT
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Numerous roads were closed throughout the county, mainly in Manchester, North Codorus, North Hopewell and Dover Townships. Three water rescues were performed, two in York Township and one in West Manchester Township.
Numerous roads were closed throughout the county, mainly in South Lebanon Township, Jackson Township and the east side of Lebanon City. In addition, six water rescues were performed.
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, March 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: 11707, 11706.