1 flash 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 Jun 13, 4:30 PM EST, 0 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 530 PM EDT WED JUN 13 2001 SENDING UPDATE FOR ONGOING CONVECTION OVER SWRN CWA. PCPN MAINLY CONFINED TO SRN SOMERSET COUNTY ATTM. WILL INCLUDE 50 POP IN AN FOR THIS EVENING PD AND ADD PHRASING TO HIGHLIGHT POSS LOCALLY HEAVY RAINFALL BASED ON SLOW MOVING CELLS IN DEEP LAYERED MOISTURE. WILL ALSO ADD 30 POP IN AN EVENING PD FOR CAMBRIA...BLAIR AND BEDFORD COUNTIES AND GROUP THEM OFF FROM PVS BREAKOUTS. NO OTHER CHANGES ATTM. GARTNER ************* PVS AFD BELOW ***************************************** ...WILL ALLISON BRING RAIN TO SOUTHERN PA?... A QUIETER AFTERNOON OVER PA COMPARED TO YESTERDAY WITH MOST CONVECTION TO OUR SOUTH. THE FOCUS OF THIS RAIN OVER THE MTS AND THE EASTERLY FLOW IS PROBABLY THE FIRST RAIN ASSOCIATED WITH THE FLOW AROUND THE REMNANTS OF ALLISON. BOTH THE AVN AND ETA SHOW -1 STD DEVIATION EASTERLY WIND ANOMALIES IN THE MID-ATLANTIC REGION ALREADY. THIS ANOMALOUS EASTERLY FLOW WILL BE A DOUBLE EDGED SWORD FOR PA OVER THE NEXT 48 HOURS OR SO. THE MODELS SHOW A STRONG AND RIDGE OF THE EASTERN US AND CANADA. 1000-850 THICKNESS ANOMALIES OVER SRN CANADA AND NEW ENGLAND WILL GET QUITE HIGH...HOT TO OUR NORTH. BUT THE EASTERLY FLOW WILL KEEP PA TEMPS AND ANOMALIES CLOSER TO NORMAL. THE TIGHT MESOSCALE RIDGE IN THE ETA/MM5 SOLUTIONS WOULD ALLOW MORE SUN THE CLOUDS THUR. BUT WITH POTENTIAL CLOUDS HAVE LOWERED TEMPS BIT. PA IS NOT TYPICALLY IN THE UPPER 80S AND 90S WITH EASTERLY FLOW! THE AVN SHOWS A -4.5 850 U WIND ANOMALIES THURS AFTERNOON AIMED ACROSS VA WITH NEAR -2 IN SRN PA. FLOW INTO OUR MTS WILL CAUSE MORE CLOUDS IN SERN PA....LESS CLOUDS TO NORTH AND WEST. THIS WIND MAX MOVES INTO PA OVERNIGHT THURS INTO FRIDAY. AVN WOULD BE WETTER AND CLOUDIER SOLUTION THEN ETA...THIS IS A LOW CONFIDENCE FORECAST...BUT HAD TO PUT RAIN IN SE. SREF DATA SHOWS MANY MEMBERS WITH 0.1 TO 0.25 INCHES OF RAIN...BUT NONE WITH 0.50 IN SE PA. TEMPS WILL BE LOWER THEN GUIDANCE IN ERN ZONES FRI WITH HIGHER POPS...LEANING TOWARD AVN POT SOLUTION. THEN COLD FRONT COMES IN FROM WEST. THE SOUTHERLY WIND ANOMALY WITH THIS IT MOVES THROUGH THE MIDWEST IS INTERESTING TOO. IN ANY CASE...DRIER AIR MOVES W TO EAST ACROSS PA SAT BRINGING A DEC IN HUMIDITY. THE SOUTHERLY JET IS NOW FORECAST TO INCREASE IN INTENSITY TO OUR EAST LATE SAT. IF THIS HAPPENS FASTER AND TO WEST WE COULD SEE SOME INTERESTING WEATHER HERE SAT AFTERNOON. LONG TERM... BIG DISAGREEMENT IN NCEP ENSEMBLES NEXT WEEK...WITH LARGE DISPERSION OF MEMBERS OVER EASTERN US. IN THE MEAN...HEIGHTS...TEMPS AND T HICKNESS VALUES LOOK TO BE ABOUT NORMAL...TEMPS SHOULD BE NEAR SEASONAL LEVELS. BUT THE RIDGE OFF THE US COAST SUGGESTS WE COULD BE A TAD MOIST. .CTP...NONE. GRUMM
The Pittsburgh radar (KPBZ), 119 km away, was scanning. The volume nearest the first event began at 21:31 UTC.
1 flash flood. Local standard time, as filed.
Heavy rains produced a mud slide near the town of Addison Springs. No property damage was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2001Every state in 2001This day in weather historyWarnings in Pennsylvania, June 2001
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: 5253278.