Alert archive / Pennsylvania / Flash Flood Warnings in 2026
Flash Flood Warning 9, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jul 5, 2026, 8:19 PM EDT for Dauphin County, York County, Pennsylvania. It was in force for 3 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 5, 2026, 8:19 PM EDT (00:19 UTC)
- Expired
- Jul 5, 2026, 11:19 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Dauphin County, PA, York County, PA
The radar
The State College radar (KCCX), 131 km from the middle of the area, began a volume at 00:20 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 5, 8:39 PM EDT | FLASH FLOOD | Hummelstown, PA | Numerous cars underwater in Hummelstown near Swatara Creek. Many reports of 3.5-4.0 inches of rain in 45 minutes. Water rescues in progress. |
| Jul 5, 8:40 PM EDT | FLASH FLOOD | Hummelstown, PA | Flooded underpass beneath a railroad crossing in Hummelstown. |
| Jul 5, 8:47 PM EDT | FLASH FLOOD | 1 Wnw Hershey, PA | Water rescues underway on Hersheypark Drive near the Giant Center. |
| Jul 5, 9:43 PM EDT | FLASH FLOOD | 1 Se Hummelstown, PA | Route 322 was closed between the Middletown Road exit and Hersheypark Drive due to flooding. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 4 storm reports to this flash flood warning; the first came 20 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.3 hours before the alert went out and 151 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2754 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1313 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
287
WGUS51 KCTP 060019
FFWCTP
PAC043-133-060330-
/O.NEW.KCTP.FF.W.0009.260706T0019Z-260706T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service State College PA
819 PM EDT Sun Jul 5 2026
The National Weather Service in State College has issued a
* Flash Flood Warning for...
Southern Dauphin County in south central Pennsylvania...
North Central York County in south central Pennsylvania...
* Until 1130 PM EDT.
* At 819 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Harrisburg, Lower Allen, Hershey, Colonial Park, Progress,
Middletown, Palmyra, New Cumberland, Linglestown, Steelton,
Lemoyne, Hummelstown, Paxtonia, Rutherford, Skyline View, Lawnton,
Valley Green, Wormleysburg, Bressler-Enhaut-Oberlin and Penbrook.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4026 7691 4029 7692 4030 7692 4033 7689
4044 7666 4035 7663 4020 7658 4019 7661
4017 7664 4016 7667 4015 7668 4015 7669
4016 7669 4016 7670 4012 7672 4011 7673
4016 7685 4021 7689 4022 7686 4023 7686
FLASH FLOOD...RADAR INDICATED
$$
Evanego2 follow-up statements
092
WGUS71 KCTP 060028
FFSCTP
Flash Flood Statement
National Weather Service State College PA
828 PM EDT Sun Jul 5 2026
PAC043-133-060330-
/O.CON.KCTP.FF.W.0009.000000T0000Z-260706T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dauphin PA-York PA-
828 PM EDT Sun Jul 5 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT THIS
EVENING FOR SOUTHERN DAUPHIN AND NORTH CENTRAL YORK COUNTIES...
At 828 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3.5 inches of rain have
fallen. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Harrisburg, Lower Allen, Hershey, Colonial Park, Progress,
Middletown, Palmyra, New Cumberland, Linglestown, Steelton,
Lemoyne, Hummelstown, Paxtonia, Rutherford, Skyline View, Lawnton,
Valley Green, Wormleysburg, Bressler-Enhaut-Oberlin and Penbrook.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4026 7691 4029 7692 4030 7692 4033 7689
4044 7666 4035 7663 4020 7658 4019 7661
4017 7664 4016 7667 4015 7668 4015 7669
4016 7669 4016 7670 4012 7672 4011 7673
4016 7685 4021 7689 4022 7686 4023 7686
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Evanego386
WGUS71 KCTP 060319
FFSCTP
Flash Flood Statement
National Weather Service State College PA
1119 PM EDT Sun Jul 5 2026
PAC043-133-060329-
/O.CAN.KCTP.FF.W.0009.000000T0000Z-260706T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dauphin PA-York PA-
1119 PM EDT Sun Jul 5 2026
...FLASH FLOOD WARNING FOR SOUTHERN DAUPHIN AND NORTH CENTRAL YORK
COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...
Flood waters are receding. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 800 PM EDT Monday for a
portion of central Pennsylvania.
&&
LAT...LON 4026 7691 4029 7692 4030 7692 4033 7689
4044 7666 4035 7663 4020 7658 4019 7661
4017 7664 4016 7667 4015 7668 4015 7669
4016 7669 4016 7670 4012 7672 4011 7673
4016 7685 4021 7689 4022 7686 4023 7686
$$
EvanegoWhat forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Jul 5, 8:06 PM EDT, 13 minutes earlier. Its key messages:
- 1) Breakdown of heat wave pattern gives rise to severe storms and torrential downpours today and tonight; flood risk lingering in the east on Monday.
Area forecast discussion, Jul 5, 8:06 PM EDT, 13 minutes before
Area Forecast Discussion National Weather Service State College PA 806 PM EDT Sun Jul 5 2026 .WHAT HAS CHANGED... * Targeted Moderate Risk Excessive Rainfall Outlook (level 3/4) for east-central Pennsylvania through tonight * Flood Watch issued this afternoon through Monday for east- central Pennsylvania && .KEY MESSAGES... 1) Breakdown of heat wave pattern gives rise to severe storms and torrential downpours today and tonight; flood risk lingering in the east on Monday. && .DISCUSSION... KEY MESSAGE 1: Breakdown of heat wave pattern gives rise to severe storms and torrential downpours today and tonight; flood risk lingering in the east on Monday. 40 severe thunderstorm warnings issued in the past 2 days. The days following a transition from an extreme heat pattern are often marked by severe/active weather, and that trend continues through at least Monday. As the heat dome shifts to the west and troughing develops over the Great Lakes/Ohio Valley/Northeast, the upcoming week will feature relatively cooler (more seasonal) temperatures with a bullish signal for almost daily rain chances particularly early and late in the week. Another active wx day ahead with dual severe T-storm and flash flood risks. We anticipate another diurnal uptick in convective development within a very warm, moist and increasingly unstable environment indicative of steep low-mid level lapse rates. Pockets of stronger deep layer shear 30+ kt may exist in the upper OH Valley and eastern PA, but the general expectation is for pulse to multicell storms to once again merge/form into line segments with some cold pool organization to promote damaging wind potential from mid afternoon into the evening. Terrain boundaries will also play an important role in initiating/organizing convection given lack of other strong forcing. SPC placed the highest damaging wind probs near/southeast of I81/78 where max temps should reach 90F. Focus will evolve from severe to flash flood/hydro ops by later this evening and continue into Monday as a robust +RA signal continues to manifest over east-central PA. Atmos conditions will be quite favorable for heavy rainfall and flash flooding potential with 2+ inch pwats correlating to intense rain rates >2 in/hr. Still some question on degree of repeating/back- building storms along q-stnry/wavy frontal zone. Latest HREF/REFS mean QPF guidance is signaling 1-3" in the 24hr period ending 00Z Tue with PMM/LPMM max values exceeding 5 inches. WPC coordinated a targeted and relatively small moderate excessive rainfall outlook (level 3/4) within a broader level 2/4 or SLGT risk area. We issued a relatively large/broad flood watch along with WFO PHI as there remains some spatial uncertainty to exactly where the greatest rainfall will occur. The setup (multiple rounds of slow moving/torrential downpours) favors locally significant flash flooding particularly in terrain areas and highly urbanized corridors. One limiting factor is obviously the drought conditions and corresponding elevated FFG values that may offset the overall risk to some extent. && .AVIATION /00Z MONDAY THROUGH FRIDAY/... Convection generally confined to the eastern half of Pennsylvania to begin the forecast. Tried to time the arrival of the main areas but there will be additional -TSRA through midnight over the eastern airfields. The remainder of the night will see MVFR to IFR with lingering light rain. Dewpoints near 70 combined with earlier rainfall will result in patchy BR/FG. Confidence of LIFR in FG is around 40% in any one location. Precipitation returns during the afternoon Monday with isolated TSRA through the remainder of the forecast period. Expect MVFR to IFR during this time. Outlook... Tue...Restrictions possible in A.M. fog and P.M. T-storms. Wed- Fri...Restrictions possible in showers/storms, most widespread on Friday. && .CLIMATE... Rare Heat at Harrisburg: 3 consecutive days with maxT >= 100F from July 2-4, 2026. The last time this streak occurred was July 1999 (2x) and is only the 6th time on record going back to 1888. && .CTP WATCHES/WARNINGS/ADVISORIES... Flood Watch through Monday evening for PAZ017>019-024>028- 033>036-042-045-046-049>053-056>059-063>066. && WHAT HAS CHANGED...Steinbugl/Colbert KEY MESSAGES...Steinbugl/Colbert DISCUSSION...Steinbugl/Colbert AVIATION...Tyburski CLIMATE...Steinbugl
Hazardous weather outlook, Jul 5, 6:46 PM EDT, 1 hour 33 minutes before
Hazardous Weather Outlook National Weather Service State College PA 646 PM EDT Sun Jul 5 2026 PAZ025>028-034>036-056>059-063>066-062300- Blair-Huntingdon-Mifflin-Juniata-Bedford-Fulton-Franklin-Perry- Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- 646 PM EDT Sun Jul 5 2026 ...FLOOD WATCH IN EFFECT THROUGH MONDAY EVENING... ...SEVERE THUNDERSTORM WATCH 465 IN EFFECT UNTIL 1 AM EDT MONDAY... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Flood Watch. Severe Thunderstorm Watch. Scattered wind damage is also possible with strong to severe thunderstorms this afternoon and evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ017>019-024-033-042-045-046-049>053-062300- Clearfield-Northern Centre-Southern Centre-Cambria-Somerset-Sullivan- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia- 646 PM EDT Sun Jul 5 2026 ...FLOOD WATCH IN EFFECT THROUGH MONDAY EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Flood Watch. Scattered wind damage is also possible with strong to severe thunderstorms this afternoon and evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ004>006-010>012-037-041-062300- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga- Northern Lycoming- 646 PM EDT Sun Jul 5 2026 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Isolated wind damage is possible with strong to severe thunderstorms this afternoon and evening. Heavy rain may make isolated minor flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Heavy rain from thunderstorms may also cause flooding on Monday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. Beaty
In the hours before
Local storm report, Jul 5, 6:25 PM EDT, 1 hour 54 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
625 PM EDT Sun Jul 5 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0440 PM Tstm Wnd Dmg 4 S Unionville 40.85N 77.87W
07/05/2026 Centre PA 911 Call Center
Trees down on wires along South Fillmore
Road.
&&Special weather statement, Jul 5, 6:27 PM EDT, 1 hour 52 minutes before
Special Weather Statement
National Weather Service State College PA
627 PM EDT Sun Jul 5 2026
PAZ017-018-024>026-052300-
Northern Centre PA-Clearfield PA-Blair PA-Cambria PA-Huntingdon PA-
627 PM EDT Sun Jul 5 2026
...STRONG THUNDERSTORMS WILL IMPACT SOUTH CENTRAL CLEARFIELD...
NORTHWESTERN HUNTINGDON...SOUTHWESTERN CENTRE...NORTHERN BLAIR AND
NORTHEASTERN CAMBRIA COUNTIES THROUGH 700 PM EDT...
At 626 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Westover to Altoona to Portage. Movement was
east at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Altoona, Tyrone, Bald Eagle, Lakemont, Bellwood, Warriors Mark,
Patton, Cresson, Gallitzin, Hastings, Tipton, Lilly, Houtzdale,
Sankertown, Sandy Ridge, Blandburg, Spruce Creek, Birmingham,
Horseshoe Curve, and Prince Gallitzin State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4087 7831 4077 7819 4074 7823 4074 7817
4071 7813 4050 7811 4041 7868 4054 7860
4072 7876
TIME...MOT...LOC 2226Z 252DEG 25KT 4068 7860 4057 7852 4044 7859
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
BeatyLocal storm report, Jul 5, 6:30 PM EDT, 1 hour 49 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
630 PM EDT Sun Jul 5 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0523 PM Tstm Wnd Dmg 4 ENE Potters Mills 40.80N 77.58W
07/05/2026 Centre PA Utility Company
Trees down on wires off of Decker Valley
Road.
&&Local storm report, Jul 5, 6:41 PM EDT, 1 hour 38 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
641 PM EDT Sun Jul 5 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0624 PM Tstm Wnd Dmg 1 NE Landisburg 40.35N 77.29W
07/05/2026 Perry PA Utility Company
Trees down on wires along Milltown Road.
&&Local storm report, Jul 5, 6:50 PM EDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
650 PM EDT Sun Jul 5 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0629 PM Tstm Wnd Dmg 3 N Prince Gallitzin St 40.70N 78.57W
07/05/2026 Cambria PA Utility Company
Trees down on wires along Kibler Lake Road.
&&Local storm report, Jul 5, 7:33 PM EDT, 46 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
733 PM EDT Sun Jul 5 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0707 PM Flash Flood 2 ENE Port Royal 40.54N 77.36W
07/05/2026 Juniata PA Public
Water flowing across a stretch of old Route
22 in Walker Township.
&&The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:00 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton, Huntingdon | 45 min |
| Jul 5, 8:10 PM EDT | Tornado Warning | CTP | Franklin | 19 min |
| Jul 5, 8:18 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 72 min |
| Jul 5, 8:30 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 60 min |
| Jul 5, 8:38 PM EDT | Flash Flood Warning | CTP | Centre, Huntingdon | 3 hr |
| Jul 5, 8:49 PM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 3 hr |
| Jul 5, 9:04 PM EDT | Special Weather Statement | CTP | Centre | 41 min |
| Jul 5, 9:16 PM EDT | Flash Flood Warning | CTP | Adams, Cumberland, Lancaster, York | 3 hr |
| Jul 5, 9:20 PM EDT | Flash Flood Warning | CTP | Lancaster, Lebanon | 2 hr |
| Jul 5, 10:10 PM EDT | Special Weather Statement | CTP | Lancaster, Lebanon | 35 min |
| Jul 5, 11:19 PM EDT | Areal Flood Warning | CTP | Dauphin, York | 3 hr |
| Jul 5, 11:25 PM EDT | Areal Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 3 hr |
| Jul 5, 11:28 PM EDT | Areal Flood Warning | CTP | Lancaster, Lebanon | 3 hr |
| Jul 6, 2:57 AM EDT | Flash Flood Warning | CTP | Potter, Tioga | 108 min |
| Jul 6, 4:10 PM EDT | Flash Flood Warning | CTP | Tioga | 2 hr |
| Jul 6, 5:34 PM EDT | Flash Flood Warning | CTP | Elk, McKean | 3 hr |
| Jul 6, 6:03 PM EDT | Special Weather Statement | CTP | Elk | 42 min |
| Jul 6, 6:13 PM EDT | Flash Flood Warning | CTP | Elk | 3 hr |
| Jul 6, 6:27 PM EDT | Flash Flood Warning | CTP | Potter, Tioga | 6 hr |
| Jul 6, 6:34 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 41 min |
| Jul 6, 7:08 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 52 min |
| Jul 6, 7:50 PM EDT | Flash Flood Warning | CTP | Clearfield | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.