Hail, Cumberland
- When
- July 9, 12:50 PM EST to 1:10 PM EST
- Where
- Cumberland County, Mt Holly Spgs
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 40.117, -77.183
Hail in Pennsylvania, July 9, 2006
75 inch/ hail in Mount Holly Springs.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS CTP wrote it up.
Thunderstorms produced penny size /0.75 inch/ hail in Mount Holly Springs.
What forecasters said that day
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 Jul 9, 10:25 AM EST, 2 hours 25 minutes earlier.
Area forecast discussion, Jul 9, 10:25 AM EST, 2 hours 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 1125 AM EDT SUN JUL 9 2006 .SHORT TERM /REST OF TODAY/... WILL RAISE POPS TO SCATTERED IN THE SOUTHEAST BASED ON MORNING SOUNDINGS LOOKING A BIT MORE UNSTABLE IN THAT REGION. IF TSTORMS DO GET GOING...THE POTENTIAL FOR HAIL WILL ALSO EXIST WITH THEM AS WET BULB ZERO LEVEL IS FAIRLY LOW. WILL MENTION SMALL HAIL IN SE COUNTIES AND UPDATE HWO TO REFLECT THIS. NOT PLANNING ON ISSUING AN SPS AS AERIAL COVERAGE WILL REMAIN LOW. ELSEWHERE...FORECAST LOOKING ON TRACK BASED ON LATEST DATA AND WILL NOT MAKE ANY CHANGES TO POPS OR TEMPS. RXR && .PREV DISCUSSION... /ISSUED 348 AM EDT SUN JUL 9 2006/ SHORT TERM /TODAY/... WEAK UPPER LOW WILL TRACK NORTHEAST ACROSS THE REGION TODAY WITH SOME MARGINAL MOISTURE AND MODERATE INSTABILITY. AN OLD RULE OF THUMB STATES THE BEST TRIGGER FOR CONVECTION THIS TIME OF YEAR IS AN UPPER COLD POOL. WE WILL SEE WEAK UPWARD VERTICAL MOTION PROVIDED BY THE DEFORMATION ZONE OF THE LIFTING SYSTEM AND THE CORE OF THE COLD POOL PASSING DURING THE LATE MORNING AND EARLY AFTERNOON. MODELS CRANK OUT CAPES IN THE 500-1500J RANGE. SOME PLUMES FOR SERN AREAS SHOW A FEW MEMBERS OF THE SREF PUSHING CAPES IN EXCESS OF 1500J...BUT MOST AVERAGE IN THE 500-800 RANGE. BOTH THE NAM AND GFS SHOW T-TOTALS IN EXCESS OF 50 THIS AFTERNOON REFLECTING THE COLD AIR ALOFT. THE K INDICES IN THE LOWER 30S IMPLY SOME BUT NOT EXACTLY BOUNTIFUL MOISTURE TO WORK WITH. THIS ALL SHOULD BE GOOD ENUF TO ALLOW FOR A POP UP SHOWER OR STORM IN A FEW PLACES THIS AFTERNOON AND EVENING. I WUDNT BE SURPRISED TO SEE SOME SMALL HAIL IN SOME OF THE THUNDERSTORMS...ESPECIALLY OVER EASTERN AREAS WHERE INSTABILITY WILL BE GREATEST. OVERALL ENSEMBLE MOS NUMBERS ARE FIRMLY IN THE SLIGHT CHANCE CAMP SO I KEPT THE POPS PRETTY LOW. HIGHS SHUD BE IN THE VERY PLEASANT 70S TO MID 80S TODAY...BUT STILL A TAD BELOW NORMAL FOR THE TIME OF YEAR. LA CORTE LONG TERM /TONIGHT THROUGH SATURDAY/... 00Z OPERATIONAL MODELS AND MRF ENSEMBLES SHOW ANOMALOUSLY LOW UPPER HEIGHTS BEING REPLACED BY ABOVE NORMAL UPPER HEIGHTS BY MID WEEK AS EASTERN RIDGE MAKES AT LEAST A BRIEF COME BACK. THE UPPER RIDGE RECEDES A BIT TWD LATE WEEK AS A WEAKNESS RETURNS ALONG THE EAST COAST...BUT 500 HEIGHTS ARE FCST TO STAY IN THE VERY SUMMERY MID TO UPPER 580DM RANGE. PRECIP WATERS ARE FCST NORMAL TO SLIGHTLY BELOW NORMAL THRU MONDAY BEFORE STARTING TO REBOUND A BIT. THE HIGH HUMIDITY IS NEVER VERY FAR OFF THIS TIME OF YEAR SO MUGGY CONDITIONS WILL GRADUALLY MAKE A RETURN. ALONG WITH THE SLOW CREEP UP IN HUMIDITY WILL COME THE INEVITABLE LOW CHANCE OF ALMOST DAILY AFTERNOON SHOWERS AND THUNDERSTORMS. ALL IN ALL IT LOOKS PRETTY NORMAL FOR MID JULY. LA CORTE AVIATION... UPPER LEVEL LOW OVER VA WILL DRIFT TO THE NE TODAY. LACK OF MOISTURE WILL KEEP THREAT OF SHOWERS AND STORMS ON THE LOW SIDE...BUT SOME CHC...MAINLY THIS AFTERNOON AND EARLY EVENING...DUE TO WEAK WARM ADVECTION AND STRONG JULY SUN. BEST CHC WOULD BE NE PART OF CWA...GIVEN TRACK OF UPPER LEVEL LOW AND DEFORMATION CLDS. WINDS WILL BE LIGHT AGAIN THIS MORNING...BUT THERE IS MORE CLDS THAN YESTERDAY MORNING. THUS MOST AREAS WILL BE VFR...WITH LESS CHC OF FOG...COMPARED TO SAT AM. A FEW SPOTS WILL BE MVFR IN 4 TO 5 MILES IN FOG AROUND SUNRISE. MORE SHOWERS AND STORMS POSSIBLE ON MONDAY AND MONDAY NIGHT...AS SMALL BUT RATHER STRONG UPPER LEVEL LOW AND COLD FRONT MOVES ACROSS THE STATE. MARTIN && .CTP WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...RXR
Hazardous weather outlook, Jul 9, 10:34 AM EST, 2 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1134 AM EDT SUN JUL 9 2006 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-101545- 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- 1134 AM EDT SUN JUL 9 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE DURING THE MID TO LATE AFTERNOON. MAINLY ACROSS THE LOWER SUSQUEHANNA VALLEY...A FEW OF THESE THUNDERSTORMS MAY BECOME STRONG TO SEVERE...WITH THE MAIN THREAT BEING HAIL. THE THUNDERSTORM ACTIVITY IS EXPECTED TO DIMINISH AS SUNSET APPROACHES THIS EVENING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. RXR
In the hours before
Special weather statement, Jul 9, 11:22 AM EST, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1222 PM EDT SUN JUL 9 2006 PAZ034-035-091715- BEDFORD-FULTON- 1222 PM EDT SUN JUL 9 2006 ...A STRONG THUNDERSTORM WILL AFFECT BEDFORD AND FULTON COUNTIES... AT 1215 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES EAST OF BEDFORD...MOVING SLOWLY EAST AT 5 MPH. THE THUNDERSTORM WILL BE NEAR CRYSTAL SPRINGS AROUND 105 PM...AND BREEZEWOOD AROUND 110 PM. THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 148 AND 178...I-70 BETWEEN MILE MARKERS 147 AND 155. THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 30. EXPECT SMALL HAIL AND DANGEROUS LIGHTNING FROM THIS STORM. FORECASTER: RXR
Special weather statement, Jul 9, 12:41 PM EST, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 141 PM EDT SUN JUL 9 2006 PAZ063-091830- CUMBERLAND- 141 PM EDT SUN JUL 9 2006 ...A STRONG THUNDERSTORM WILL AFFECT CUMBERLAND COUNTY... AT 140 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES SOUTH OF CARLISLE...DRIFTING VERY SLOWLY TOWARD THE EAST. THE THUNDERSTORM WILL BE NEAR MOUNT HOLLY SPRINGS AROUND 215 PM AND BOILING SPRINGS AROUND 230 PM. THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES... I-81 BETWEEN MILE MARKERS 36 AND 50. THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11. EXPECT SMALL HAIL AND DANGEROUS LIGHTNING FROM THIS STORM. FORECASTER: RXR
The radar
The State College radar (KCCX), 113 km away, was scanning. The volume nearest the first event began at 17:50 UTC.
Event by event
1 hail. Local standard time, as filed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Wildfire in California, July 9 to 31, 2006
- High Surf in Guam, July 9, 2006
- Flash Flooding and Hail in Wisconsin, July 9, 2006
- Tornadoes and Flash Flooding in Colorado, July 9, 2006
- Hail and Damaging Winds in Michigan, July 9, 2006
- Hail and Damaging Winds in Michigan, July 9, 2006
- Hail and Damaging Winds in Michigan, July 9, 2006
- Hail and Damaging Wind in Wisconsin, July 9, 2006
- Flash Flood in Colorado, July 9, 2006
- High Surf in Hawaii, July 9 to 13, 2006
- Marine Thunderstorm Winds and Waterspouts in Lake Michigan, July 9, 2006
- Marine Thunderstorm Winds in Lake Michigan, July 9, 2006
More
Every storm in Pennsylvania in 2006Every state in 2006This day in weather historyWarnings in Pennsylvania, July 2006
Sources
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: 5527001.