Click on button above to view PA Watches/Warnings/Special Wx Statements.


Jefferson county, PA Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.

(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts





US Weekly Rainfall Departure



US Weekly Temperature Departure
Also see:




A joint service of the UK Ag Weather Center and the National Weather Service.


National Weather Service State College PA
1058 PM EDT Sat Apr 29 2017

Pennsylvania will remain in the battle zone between two airmasses 
on Sunday as a frontal boundary remains draped across the 
commonwealth, separating cooler air to the north from warm, humid 
air to the south.

There could be a few showers overnight, and some thunder is possible 
across western Pennsylvania. Low temperatures will range from the 
mid 40s across the northern tier of Pennsylvania to around 60 
degrees near the Mason-Dixon line.

Sunday will see the frontal boundary shift to a northwest to 
southeast orientation, with warm and humid air pushing northward 
into western Pennsylvania along with a few showers and 
thunderstorms. Meanwhile, easterly flow on the cool side of the 
front will keep clouds and cooler temperatures in place for much of 
central and eastern Pennsylvania.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Precision Agriculture Weather Forecast For JEFFERSON County


For Your Farm PointAgCast...Click here.

Hourly Observations For JEFFERSON county
100 AM EDT SUN APR 30 2017

WESTERN PENNSYLVANIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ERIE           PTCLDY    49  43  80 NE15G21   30.19F                  
MEADVILLE      PTCLDY    49  48  97 NE7       30.15F                  
FRANKLIN*      PTCLDY    50  45  81 NE7       30.16F                  
NEW CASTLE     FAIR      51  51 100 NE3       30.13F FOG              
BEAVER COUNTY  NOT AVBL                                               
BUTLER*        PTCLDY    55  54  94 NE6       30.14S                  
PITTSBURGH INT CLOUDY    59  57  93 E6        30.11F                  
PITTSBURGH     CLOUDY    59  56  89 E3        30.12R                  
INDIANA*       CLOUDY    59  59 100 E7        30.16R                  
LATROBE        CLEAR     59  59 100 N6        30.12S                  
WASHINGTON CO* CLOUDY    61  57  88 NE8       30.12F                  

Current Temperatures, Dewpoint, RH, Wind, Surface 4-Panel


Current Agricultural Weather Conditions in Pennsylvania
Based on observations at 100am EDT, Sunday April 30, 2017

Across Pennsylvania...temperatures are near 59 degrees west, near 60 degrees central, and near 73 degrees east. Current sky conditions are cloudy west, mostly cloudy central, and partly cloudy east. In the west, relative humidity is near 89%, and the dew point is near 56 degrees. In the central part of the state, relative humidity is near 88%, and the dew point is near 56 degrees. In the east, relative humidity is near 63%, and the dew point is near 60 degrees. Winds are coming from the east at 3 mph in the west, where conditions are favorable for spraying. Winds are coming from the northeast at 7 mph in the central, where conditions are favorable for spraying. Winds are coming from the northeast at 10 mph in the east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 73 degrees at Philadelphia. The lowest temperature is 48 degrees at Bradford.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For JEFFERSON County,PA

250 PM EDT Sat Apr 29 2017

 DAY ONE  This Afternoon and Tonight.

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  Sunday through Friday.

No hazardous weather is expected at this time.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For JEFFERSON County, PA
Issued at 826 PM EDT Sat Apr 29 2017

TONIGHT
Mostly cloudy. Isolated showers and thunderstorms after midnight. Lows in the mid 50s. Mild. North winds 5 to 10 mph, becoming east after midnight. Chance of rain 20 percent.

SUNDAY
Mostly cloudy in the morning, then becoming partly sunny. Isolated showers and thunderstorms. Warm with highs in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent.

SUNDAY NIGHT
Mostly cloudy. Mild. Lows in the lower 60s. South winds 5 to 10 mph.

MONDAY
Partly sunny with a chance of showers and thunderstorms in the morning, then cloudy with showers and thunderstorms in the afternoon. Warm with highs in the upper 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

MONDAY NIGHT
A chance of thunderstorms in the evening. Considerable cloudiness with a chance of showers. Cooler with lows in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

TUESDAY
Mostly cloudy with a 50 percent chance of showers. Much cooler with highs in the upper 50s.

TUESDAY NIGHT
Mostly cloudy. Lows in the lower 40s.

WEDNESDAY
Partly sunny. A chance of showers in the afternoon. Highs in the mid 50s. Chance of rain 40 percent.

WEDNESDAY NIGHT
Considerable cloudiness. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 40s. Chance of rain 60 percent.

THURSDAY
Showers likely. Highs in the upper 50s. Chance of rain 70 percent.

THURSDAY NIGHT
Showers likely. Lows in the lower 40s. Chance of rain 70 percent.

FRIDAY
Considerable cloudiness with a 50 percent chance of showers. Highs in the upper 50s.

FRIDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 40s.

SATURDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the upper 50s.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Pennsylvania
                                 PENN                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                 MAY 5-MAY 9 MAY 7-MAY 13    MAY       MAY-JUL                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above      Above                      
 Precipitation:      Above        Below     Normal     Normal                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Historical Weather And Climate Facts For Today

APRIL 30TH
HISTORIC WEATHER EVENTS
...1852...
A tornado, following the same track as the famous "Tri-state Tornado" of
1925, struck the town of New Harmony IND. Just sixteen persons were killed
by the twister, due to the sparse settlement. The "Tri-state Tornado"
killed 695 persons. (David Ludlum)
...1953...
A tornado 300 yards in width leveled homes on the north side of
Warner-Robins GA, and barracks on the south side of the Warner-Robins Air
Force Base. (The Weather Channel)


Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky