Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Precipitation Departures from Normal

CLICK HERE FOR THE
LATEST FLOOD OUTLOOK

Recent Flood Outlooks (PDFs)

Recent Flood Outlooks (text)

(open in new window)

CLICK HERE FOR THE
LATEST DROUGHT STATEMENT

See All Drought Information Statements

(PDF and TXT)

Drought Declarations (most recent revision 5/29/2026)
(Courtesy PA Department of Environmental Protection (DEP))

Drought Map of Pennsylvania

Common Questions:

Are we below normal for precipitation?

See: Departure from Normal Maps
(from the MARFC)

What are streamflows like right now?

See: USGS = Daily Streamflow Map

What are well levels like right now?

See: USGS = PA GroundWater Well Levels.

How much precipitation have we been getting the last few years?

Generate plots: Statewide Precipitation (or Temperature) trends

How much precipitation do we normally receive in a year/month?

See: Maps of Normal Annual and Monthly Precipitation in PA

Normal Annual PA Precip (inches)

Useful links:

Drought Monitoring Tools
See the Climate Prediction Center's Seasonal Drought Outlook
U.S. Drought Monitor
Climate Diagnostics Center - Monitoring Drought
Current Palmer Drought Index Map
Read an explanation/definition of the Palmer Drought (Severity) Index.
Check out the Susquehanna River Basin Commission (SRBC) homepage.

Recent Snowfall

Public Reports (as appropriate)
When we obtain reports from across the region - whether from spotters, the general public, or solicited information from people like PennDOT or Emergency Personnel - we quality-check the data. We then try to issue Public Information Statements that summarize this information. Latest 24-hr Snowfall Report Map

    
                        

612

NOUS41 KCTP 161739

PNSCTP

PAZ004-162145-



Public Information Statement

National Weather Service State College PA

139 PM EDT Tue Jun 16 2026



...NWS Damage Survey for 06/14/2026 Tornado Event...



Multiple rotating thunderstorms moved across Central Pennsylvania

the evening of Sunday June 14th. One of these storms produced a

short-lived EF1 tornado south of Grand Valley in Warren County.



.Grand Valley Tornado...



Rating:                 EF1

Estimated Peak Wind:    95 mph

Path Length /statute/:  0.64 miles

Path Width /maximum/:   150 yards

Fatalities:             0

Injuries:               0



Start Date:             06/14/2026

Start Time:             05:27 PM EDT

Start Location:         3 S Grand Valley / Warren County / PA

Start Lat/Lon:          41.6727 / -79.5458



End Date:               06/14/2026

End Time:               05:28 PM EDT

End Location:           3 SSE Grand Valley / Warren County / PA

End Lat/Lon:            41.6712 / -79.5335



Survey Summary:

Sporadic thunderstorm damage in the form of downed trees was observed

south of Grand Valley in southwestern Warren County. An area of more

concentrated tree damage displaying a convergence pattern was found

along Seldom Seen Road and Colorado Road in Southwest Township. This

concentrated tree damage included multiple uprooted and snapped

hardwoods and softwoods. The path length of the concentrated damage was

a little more than half a mile in length. Beyond the tornadic damage,

additional tree damage due to straightline winds was found farther to

the east and southeast along Seldom Seen Road and Youngsville Road.



&&



EF Scale: The Enhanced Fujita Scale classifies tornadoes into the

following categories:



EF0.....65 to 85 mph

EF1.....86 to 110 mph

EF2.....111 to 135 mph

EF3.....136 to 165 mph

EF4.....166 to 200 mph

EF5.....>200 mph



NOTE:

The information in this statement is preliminary and subject to

change pending final review of the event and publication in

NWS Storm Data.



$$



MJ/CE/MT

Co-Operative (CoOp) Station Observations (Daily)
Once per day (usually around 7 am) more than 100 people across Central Pennsylvania send the NWS an observation covering the past 24 hours. Most report rain and snow totals. See the daily data from the CoOperative Observers

    
                        

124

SXUS51 KCTP 161459

HYDCTP

PAC001-009-013-021-023-027-033-035-037-041-043-047-055-057-061-067-

071-075-081-083-087-093-097-099-105-107-109-111-113-117-119-123-

133-171500-



Daily Hydrometeorological Data Summary

National Weather Service State College PA

1059 AM EDT Tue Jun 16 2026





TEMPERATURE AND PRECIPITATION FOR THE PAST 24 HOURS.



                                        TEMPERATURE          SNOW

STATION          OBSTIME     PRECIP    MAX   MIN   OBSN   NEW TOTAL



    Adams County

Biglerville         7am       0.00     74    49     51    0.0    0

Cashtown            7am          M      M     M      M      M    M



    Blair County

Altoona             7am          M      M     M      M      M    M

Altoona Airport     7am       0.00     71    44     54      M    M

Tyrone              7am          M      M     M      M      M    M

Williamsburg      715am          M     75    46     56      M    M



    Cambria County

Ebensburg           8am          M      M     M      M      M    M

Ebensburg 1SW       7am       0.00      M     M     49      M    M

Johnstown Airport   7am       0.00     67    46     52      M    M

Prince Gallitzin  630am          M      M     M      M      M    M



    Cameron County

Stevenson Dam       7am       0.00     69    46     46    0.0    0



    Centre County

Philipsburg 2S      7am       0.00     68    41     52      M    M

State College       8am       0.00     70    49     56    0.0    0



    Clearfield County

Clearfield          7am       0.00     68    43     47      M    M

Dubois            630am          M      M     M      M      M    M

Grampian            8am       0.00     78    41     41    0.0    0



    Clinton County

Lock Haven          7am          M      M     M      M      M    M

Renovo              7am       0.00     72    47     48    0.0    0



    Cumberland County

Carlisle            7am       0.00     72    47     53    0.0    0

Shippensburg       12am          M      M     M      M      M    M



    Dauphin County

Harrisburg          7am       0.00     77    63     62      M    M

Harrisburg 1 NE     7am          M      M     M      M      M    M



    Elk County

Ridgway             7am       0.00     65    42     46    0.0    0



    Harford County MD

Conowingo Dam MD    7am          M      M     M      M      M    M



    Huntingdon County

Raystown Lake       7am          M     73    51     54      M    M



    Lancaster County

Holtwood            7am          M      M     M      M      M    M

Lancaster          12am          M      M     M      M      M    M

Lancaster Airport   7am       0.00     77    51     60      M    M

Millersville        7am          M      M     M      M      M    M

New Holland        12am          M      M     M      M      M    M

Safe Harbor         7am       0.00     78    58     59      M    M



    Lebanon County

Lebanon 2W         12am          M      M     M      M      M    M

Fort Indiantown Gap 7am          M      M     M      M      M    M



    Lycoming County

Williamsport        7am       0.00     73    53     52      M    M



    Mckean County

Bradford            8am       0.00     62    40     50      M    M

Bradford Airport    7am       0.00     60    36     52      M    M

Kane                7am          M      M     M      M      M    M



    Mifflin County

Lewistown           7am       0.00     75    48     48    0.0    0



    Northumberland County

Sunbury             7am       0.00     74    45     48      M    M



    Potter County

Coudersport 1SW     7am          M      M     M      M      M    M

Galeton             8am       0.00      M     M      M      M    M



    Schuylkill County

Mahanoy City        7am       0.00     70    45     54    0.0    0

Pine Grove          7am       0.00      M     M     48    0.0    0



    Snyder County

Selinsgrove         7am          M      M     M      M      M    M

Selinsgrove Airport 7am       0.00     74    50     57      M    M



    Somerset County

Confluence          7am       0.01     68    46     47      M    M

Glencoe             7am          M      M     M      M      M    M

Hidden Valley       8am          M      M     M      M      M    M

Laurel Summit       7am          M      M     M      M      M    M

Somerset            7am       0.00      M     M     49    0.0    0

Windber 7SE         7am          M      M     M      M      M    M



    Sullivan County

Laporte             7am       0.00     62    43     55      M    M



    Tioga County

Covington           7am          M      M     M      M      M    M

Cowanesque Dam      7am       0.00     65    44     46      M    M

Tioga Hammond Dam   7am       0.00     66    43     44      M    M

Wellsboro           7am       0.00     64    42     45    0.0    0



    Union County

Lewisburg           7am       0.00     73    48     54    0.0    0



    Warren County

Kinzua Dam          7am          M      M     M      M      M    M

Warren              7am       0.00     63    45     46      M    M



    York County

New Cumberland      7am       0.00     76    62     59      M    M

Thomasville         7am       0.00     74    48     60      M    M



$$

Seasonal Totals

Select Season:
seasonal snow map

Tip: right click on image above and open in a new window to see the image full-sized (1032x700px)

Seasonal Normals

What is normal (average) for my location?

Check the map below, which lists the Average Annual Snowfall for Pennsylvania. Then, if you need further/more-detailed (monthly averages) information, check the Climate Database for a location near you.

Select:

"Monthly avgs/totals" from Col #1 (Product)
Choose a location near to you from Col #2 (Location)
Select "Snowfall" from Col #3 (Variable)
Select "1981-2010" from Col#4 (Year)
Hit "GO!"

Average Annual Snowfall for Pennsylvania

Average Annual Snowfall for Pennsylvania, contours

Long Term Seasonal Averages

Location	Long-Term Average	30 Year Average 1991-2020
Harrisburg	33.2 since 1889	29.9
State College	45.9 since 1893	43.8
Williamsport	38.8 since 1895	35.8

Average Date of First Accumulating Snow in Central PA

Date of Average Frist Snowfall

Long-Term Station Snowfall Totals
The following charts show the individual winter season snowfalls since 1980-1981. Continuous weather records have been kept since 1888 in Harrisburg, and since 1895 in both Williamsport and State College. Scroll down to see the larger images.

Harrisburg, PA Site Snowfall for recent winter seasons.
State College, PA Co-Operative Observation Site Snowfall for recent winter seasons.
Williamsport, PA Site Snowfall for recent winter seasons.
Laurel Summit, PA Co-Operative Observation Site Snowfall for recent winter seasons.