Alert archive / Pennsylvania / Flash Flood Warnings in 2026
Flash Flood Warning 87, NWS State College, PA
NWS State College, PA issued this flash flood warning at Sep 3, 2026, 12:03 AM EDT for Dauphin County, Lebanon County, Schuylkill County, Pennsylvania. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 3, 2026, 12:03 AM EDT (04:03 UTC)
- Expired
- Sep 3, 2026, 4:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Dauphin County, PA, Lebanon County, PA, Schuylkill County, PA
The radar
The State College radar (KCCX), 126 km from the middle of the area, began a volume at 04:07 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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, 4.1 hours before the alert went out and 191 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
- 316 J/kg
- Mixed-layer CIN
- -263 J/kg
- Mixed-layer LCL
- 1068 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.8
The text
As transmitted.
544
WGUS51 KCTP 030403
FFWCTP
PAC043-075-107-030800-
/O.NEW.KCTP.FF.W.0087.260903T0403Z-260903T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service State College PA
1203 AM EDT Thu Sep 3 2026
The National Weather Service in State College has issued a
* Flash Flood Warning for...
Schuylkill County in central Pennsylvania...
Dauphin County in south central Pennsylvania...
Northwestern Lebanon County in south central Pennsylvania...
* Until 400 AM EDT.
* At 1203 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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...
Pottsville, Linglestown, Schuylkill Haven, Minersville, St. Clair,
Paxtonia, Skyline View, Orwigsburg, Valley View, Millersburg, Pine
Grove, Port Carbon, Lykens, Tremont, Duncannon, Elizabethville and
Williamstown.
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.
&&
LAT...LON 4078 7637 4076 7612 4067 7592 4064 7599
4057 7602 4058 7604 4050 7644 4045 7637
4037 7645 4031 7687 4036 7694 4036 7701
4039 7703 4043 7702 4047 7695 4056 7699
4062 7694 4060 7692 4061 7692 4066 7670
FLASH FLOOD...RADAR INDICATED
$$
ColbertWhat 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 Sep 2, 8:27 PM EDT, 3 hours 36 minutes earlier. Its key messages:
- 1) Late summer surge of heat and humidity continues severe thunderstorm and excessive rainfall threat through Thursday
Area forecast discussion, Sep 2, 8:27 PM EDT, 3 hours 36 minutes before
Area Forecast Discussion National Weather Service State College PA 827 PM EDT Wed Sep 2 2026 .WHAT HAS CHANGED... * No significant changes, severe weather risk continues this evening && .KEY MESSAGES... 1) Late summer surge of heat and humidity continues severe thunderstorm and excessive rainfall threat through Thursday && .DISCUSSION... KEY MESSAGE 1: Late summer surge of heat and humidity continues severe thunderstorm and excessive rainfall threat through Thursday A series of mid level impulses tracking eastward along the northern periphery of an expansive 500mb ridge will continue to interact with anomalous moisture/instability and strong WNW flow aloft to promote severe storm and excessive rain risk through Thursday. After a round of severe storms this morning, robust destabilization is occurring across western and central PA with plenty of heating and very rich dewpoints in the 70-75F range. More thunderstorms are expected this afternoon through the evening in an convective environment highly supportive of organized storms capable of all severe weather hazards. There is also the potential for heavy rain and flash flooding especially were storms repeat over the same area. Increased southwest to westerly flow on Thursday will push the will continue to pump in the late summer heat and very high dewpoints. Heat advisory remains in effect from 11a-8p Thursday across a portion of south central PA where max heat index values are projected to reach/exceed 100F. The severe risk will be focused more across the southwest quadrant of central PA Thursday, and south of the PA-MD border on Friday. An upper trough passage favors one final round of showers and storms on Friday, but fortunately the Labor Day weekend is trending dry. The upper ridge is forecast to retrograde by the end of the week which allows for a return to more seasonal temperatures and lower humidity this weekend into early next week. && .AVIATION /00Z THURSDAY THROUGH MONDAY/... With scattered storms taking shape over Central PA, have included mentions of thunderstorms over northern and western terminals this evening. Exact timing of when exactly any of this scattered activity could impact a site remains uncertain, but any impacts to terminals could see lightning and IFR visibility drops in heavy rain. Another round of forcing has kicked up storms in New York which is dropping southward. Most guidances continues this line southward into our area overnight with further development along its western flanks. Have included PROB30s for most confident timing of activity overnight, IFR restrictions in heavy downpours are possible. Fog remains possible but guidance has backed off prevailing fog conditions at JST and AOO so adjusted visibilities there. Visibility restrictions remain possible though in any thunderstorms that cross paths with the terminals. Prevailing IFR ceilings look most likely in the eastern terminals starting around tomorrow. Morning thunderstorm activity may lead to these restrictions persisting at MDT and LNS later into the morning. Afternoon thunderstorm activity looks most likely at JST and AOO tomorrow but seeing how these storms tonight unfold may change timing/other sites that may see impacts. Outlook... Thu...Scattered-Numerous SHRA/TSRA with brief restrictions possible; morning fog. Fri...Scattered SHRA/TSRA SW. VFR elsewhere after morning fog. Sat-Mon...VFR favored; morning fog possible. && .CTP WATCHES/WARNINGS/ADVISORIES... Heat Advisory from 11 AM to 8 PM EDT Thursday for PAZ026>028- 035-036-056-057-059-063>066. && WHAT HAS CHANGED...Steinbugl KEY MESSAGES...Steinbugl DISCUSSION...Steinbugl AVIATION...Lambrech
Hazardous weather outlook, Sep 2, 10:47 PM EDT, 1 hour 16 minutes before
Hazardous Weather Outlook National Weather Service State College PA 1047 PM EDT Wed Sep 2 2026 PAZ026>028-035-036-056-057-059-063>066-040300- Huntingdon-Mifflin-Juniata-Fulton-Franklin-Perry-Dauphin-Lebanon- Cumberland-Adams-York-Lancaster- 1047 PM EDT Wed Sep 2 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible later this evening and tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Heat Advisory. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible again on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ004>006-010>012-017>019-037-041-042-045-046-040300- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Tioga-Northern Lycoming-Sullivan- Southern Clinton-Southern Lycoming- 1047 PM EDT Wed Sep 2 2026 ...SEVERE THUNDERSTORM WATCH 646 IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... 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. Severe Thunderstorm Watch. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible later this afternoon through tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible again on Thursday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ024-025-033-034-049>053-058-040300- Cambria-Blair-Somerset-Bedford-Union-Snyder-Montour-Northumberland- Columbia-Schuylkill- 1047 PM EDT Wed Sep 2 2026 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible later this afternoon through tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Strong to severe thunderstorms with damaging winds and heavy rainfall are possible again on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Sep 2, 10:58 PM EDT, 1 hour 5 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
1058 PM EDT Wed Sep 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1055 PM Flood 1 NE Penns Creek 40.87N 77.05W
09/02/2026 Union PA Public
Flooded basement beside Penns Creek on 2400
block of Wildwood Rd.
&&
MRCLocal storm report, Sep 2, 10:59 PM EDT, 1 hour 4 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
1059 PM EDT Wed Sep 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0946 PM Flash Flood 2 NNW Loganton 41.06N 77.31W
09/02/2026 Clinton PA Public
Tree down near by the intersection of
Rosecrans Lane and Long Run Road.
&&
JBLLocal storm report, Sep 2, 11:03 PM EDT, 1 hour before
Preliminary Local Storm Report
National Weather Service State College PA
1103 PM EDT Wed Sep 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 PM Flash Flood Mifflinburg 40.92N 77.04W
09/02/2026 Union PA 911 Call Center
Water rescue at intersection of Forest Hill
Rd and Chestnut St.
&&
MRCLocal storm report, Sep 2, 11:04 PM EDT, 59 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
1104 PM EDT Wed Sep 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0950 PM Tstm Wnd Dmg 2 NNE Loganton 41.05N 77.29W
09/02/2026 Clinton PA 911 Call Center
Tree down in Greene Township by I-80
Westbound.
&&
JBLLocal storm report, Sep 2, 11:06 PM EDT, 57 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
1106 PM EDT Wed Sep 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0946 PM Tstm Wnd Dmg 2 NNW Loganton 41.06N 77.31W
09/02/2026 Clinton PA 911 Call Center
Corrects previous flash flood report from 2
NNW Loganton. Tree down near by the
intersection of Rosecrans Lane and Long Run
Road.
&&
JBLSpecial weather statement, Sep 2, 11:08 PM EDT, 55 minutes before
Special Weather Statement
National Weather Service State College PA
1108 PM EDT Wed Sep 2 2026
PAZ012-041-045-030345-
Northern Lycoming PA-Southern Clinton PA-Northern Clinton PA-
1108 PM EDT Wed Sep 2 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LYCOMING AND
CENTRAL CLINTON COUNTIES UNTIL 1145 PM EDT...
At 1108 PM EDT, Doppler radar was tracking a strong thunderstorm near
Glen Union, or 10 miles northwest of Lock Haven, moving east at 30
mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Lock Haven, Dunnstown, McElhattan, Glen Union and Lock Haven
University.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4114 7769 4127 7769 4130 7737 4114 7734
TIME...MOT...LOC 0307Z 263DEG 23KT 4121 7762
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
TeareThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 8:12 PM EDT | Tornado Warning | CTP | Centre, Clinton | 33 min |
| Sep 2, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter, Tioga | 38 min |
| Sep 2, 8:29 PM EDT | Tornado Warning | CTP | Tioga | 35 min |
| Sep 2, 8:39 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 51 min |
| Sep 2, 8:44 PM EDT | Tornado Warning | CTP | Centre, Clinton | 31 min |
| Sep 2, 8:50 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Tioga | 55 min |
| Sep 2, 8:58 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Potter | 47 min |
| Sep 2, 9:03 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 57 min |
| Sep 2, 9:24 PM EDT | Flash Flood Warning | CTP | Centre, Clinton, Lycoming | 3 hr |
| Sep 2, 9:29 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 16 min |
| Sep 2, 9:50 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Union | 40 min |
| Sep 2, 9:50 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 40 min |
| Sep 2, 10:12 PM EDT | Flash Flood Warning | CTP | Centre, Clinton, Lycoming, Union | 3 hr |
| Sep 2, 10:35 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 40 min |
| Sep 2, 10:51 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Snyder, Union | 39 min |
| Sep 2, 11:08 PM EDT | Special Weather Statement | CTP | Clinton | 37 min |
| Sep 2, 11:09 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 66 min |
| Sep 2, 11:13 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Mifflin, Northumberland, Perry, Snyder | 47 min |
| Sep 2, 11:15 PM EDT | Tornado Warning | CTP | Elk, McKean, Warren | 15 min |
| Sep 2, 11:26 PM EDT | Flash Flood Warning | CTP | Northumberland, Snyder, Union | 4 hr |
| Sep 2, 11:26 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Northumberland, Schuylkill, Snyder, Union | 49 min |
| Sep 2, 11:40 PM EDT | River Flood Warning | CTP | Centre, Clinton | 16 hr |
| Sep 2, 11:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Clinton, Elk, Lycoming, McKean and 2 more | 41 min |
| Sep 3, 12:10 AM EDT | Special Weather Statement | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 50 min |
| Sep 3, 12:23 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 3 more | 61 min |
| Sep 3, 12:27 AM EDT | Areal Flood Warning | CTP | Centre, Clinton, Lycoming | 6 hr |
| Sep 3, 12:28 AM EDT | Special Weather Statement | CTP | McKean, Warren | 47 min |
| Sep 3, 12:50 AM EDT | Special Weather Statement | CTP | Lancaster, York | 70 min |
| Sep 3, 1:09 AM EDT | Flash Flood Warning | CTP | Clinton, Lycoming | 4 hr |
| Sep 3, 1:11 AM EDT | Special Weather Statement | CTP | Cameron, Elk, McKean | 49 min |
| Sep 3, 1:14 AM EDT | Areal Flood Warning | CTP | Centre, Clinton, Lycoming, Union | 6 hr |
| Sep 3, 1:26 AM EDT | River Flood Warning | CTP | Snyder, Union | 15 hr |
| Sep 3, 1:32 AM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon | 43 min |
| Sep 3, 2:12 AM EDT | Flash Flood Warning | CTP | Centre, Clearfield, Huntingdon, Juniata, Mifflin, Perry | 4 hr |
| Sep 3, 2:42 AM EDT | Flood Watch | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 27 more | 20 hr |
| Sep 3, 2:56 AM EDT | Flash Flood Warning | CTP | McKean, Warren | 3 hr |
| Sep 3, 3:23 AM EDT | Areal Flood Warning | CTP | Northumberland, Snyder, Union | 3 hr |
| Sep 3, 3:53 AM EDT | Areal Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 3 hr |
| Sep 3, 4:11 AM EDT | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon | 4 hr |
| Sep 3, 5:03 AM EDT | Areal Flood Warning | CTP | Clinton, Lycoming | 117 min |
| Sep 3, 5:46 AM EDT | Areal Flood Warning | CTP | Centre, Clearfield, Huntingdon, Juniata, Mifflin, Perry | 2 hr |
| Sep 3, 5:56 AM EDT | Areal Flood Warning | CTP | McKean, Warren | 3 hr |
| Sep 3, 6:15 AM EDT | Special Weather Statement | CTP | Warren | 45 min |
| Sep 3, 6:55 AM EDT | Special Weather Statement | CTP | Cameron, Clearfield, Elk | 65 min |
| Sep 3, 8:37 AM EDT | Special Weather Statement | CTP | Somerset | 23 min |
| Sep 3, 8:55 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 50 min |
| Sep 3, 9:34 AM EDT | Severe Thunderstorm Warning | CTP | Bedford, Franklin, Fulton, Somerset | 41 min |
| Sep 3, 7:01 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 44 min |
| Sep 3, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 25 min |
| Sep 3, 7:21 PM EDT | Flash Flood Warning | CTP | Cambria, Somerset | 3 hr |
| Sep 3, 7:39 PM EDT | Tornado Warning | CTP | Bedford, Cambria, Somerset | 36 min |
| Sep 3, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset | 48 min |
| Sep 3, 7:54 PM EDT | Tornado Warning | CTP | Bedford, Blair, Cambria | 36 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.