1 flood, as filed by the National Weather Service.
Every event with a place to put it; 1 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 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 Sep 29, 1:30 PM EST, 3 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 230 PM EDT WED SEP 29 2004 .AVIATION... RESIDUAL LOW LVL MOISTURE AND LOWER SUN ANGLE HAS MADE IT DIFFICULT TO ERODE LOW STRATOCU CLOUD DECK. THIS PROCESS WILL GRADUALLY TAKE PLACE THIS AFTERNOON...BUT VFR CONDS WILL BE SHORT LIVED. MVFR CONDS WILL RETURN THIS EVENING ASSOC WITH BR...THEN LOW CLOUDS WILL FOLLOW OVERNIGHT AS CLOSED UPPER LEVEL LOW OVER OHIO/LAKE ERIE MOVES EAST. SCT -SHRA WILL POP UP AS WELL...WITH BEST CHANCE ACROSS EASTERN TERMINALS AFT 12Z. OCNL IFR CONDS AT KBFD/KJST POSSIBLE BETWEEN 09Z-13Z...BUT MAINLY FOR LOW CLOUDS. THICK CLOUD COVER SHOULD PRECLUDE DENSE FOG FORMATION...ALTHOUGH A BRIEF PERIOD OF 1/2SM FG MAY OCCUR AT KBFD AND KIPT. && .SHORT TERM (TONIGHT THROUGH FRIDAY)... CLOUDS LINGERING ACROSS CENTRAL PA THIS AFTERNOON AS REMNANTS OF JEANNE CONTINUE TO MOVE FURTHER AWAY FROM THE REGION. UPPER LOW CENTERED OVER OHIO WILL BE THE NEXT WEATHER FEATURE TO SLOWLY DRIFT ACROSS PA. NOT MUCH SHOWING UP CURRENTLY ON RADAR ACROSS OH...BUT MODELS SEEM INSISTENT ON CARRYING POPS LATER TONIGHT INTO THU AS THIS UPPER LOW PROGRESSES EASTWARD...ALTHOUGH MODEL SURFACE DEWPOINTS LOOK TOO HIGH DURING THE NEXT 24 HOURS. DID MENTION 20-40 PERCENT POPS FOR MAINLY LATE TONIGHT AND FIRST HALF OF THU THOUGH AS SCT/WDLY SCT SHOWERS ARE EXPECTED. HIGH PRESSURE THEN MOVES IN FOR THU AND FRI...BRINGING A QUITE COOL MORNING FRI WITH READINGS INTO THE 30S ACROSS THE NORTHERN MOUNTAINS. && .LONG TERM (FRIDAY NIGHT THROUGH WEDNESDAY)... THE HIGHLIGHT OF THE EXTENDED FORECAST REMAINS A DECENT COLD FRONT PROGGED TO MOVE THROUGH ON SATURDAY. THIS WILL BRING SCATTERED SHOWERS/TSTORMS MAINLY SAT AFTERNOON AND EVENING TO CENTRAL PA. AHEAD OF THE FRONT FRI NIGHT...HIGH PRESSURE WILL RETREAT TO THE EAST AND CLOUDS WILL BE ON THE INCREASE WITH SOUTHERLY FLOW. AFTER FROPA...COOLER AND DRIER AIR WILL MOVE IN SUN AND MON. THEN A BROAD TROUGH ESTABLISHES ITSELF ACROSS THE GREAT LAKES...KEEPING TEMPS ON THE COOL SIDE AND POTENTIALLY BRINGING SCATTERED SHOWERS TO THE NORTHERN MOUNTAINS MON THRU WED. && .CTP WATCHES/WARNINGS/ADVISORIES... PA...NONE. && AVIATION...JPV SHORT TERM/LONG TERM...RXR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 521 AM EDT WED SEP 29 2004 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-300920- ADAMS PA-BEDFORD PA-BLAIR PA-CAMBRIA PA-CAMERON PA-CLEARFIELD PA- COLUMBIA PA-CUMBERLAND PA-DAUPHIN PA-ELK PA-FRANKLIN PA-FULTON PA- HUNTINGDON PA-JUNIATA PA-LANCASTER PA-LEBANON PA-MCKEAN PA- MIFFLIN PA-MONTOUR PA-NORTHERN CENTRE PA-NORTHERN CLINTON PA- NORTHERN LYCOMING PA-NORTHUMBERLAND PA-PERRY PA-POTTER PA- SCHUYLKILL PA-SNYDER PA-SOMERSET PA-SOUTHERN CENTRE PA- SOUTHERN CLINTON PA-SOUTHERN LYCOMING PA-SULLIVAN PA-TIOGA PA- UNION PA-WARREN PA-YORK PA- 521 AM EDT WED SEP 29 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY: NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY: NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Heavy rain and local runoff caused the Yellow Breeches Creek at Camp Hill to exceed its flood stage of 7 feet again. The creek rose above flood stage at 16:55 EST on the 29th, crested at 7.56 feet at 22:15 EST on the 29th, and fell below flood stage at 02:45 on the 30th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2004Every state in 2004This day in weather historyWarnings in Pennsylvania, September 2004
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: 5423112.