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Armstrong county, PA Weather and Climate Synopsis

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US Weekly Rainfall Departure

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

National Weather Service State College PA
457 AM EST Mon Feb 27 2017

Clouds will thicken through the morning as a weak disturbance 
approaches from the Ohio Valley. Some light rain will start in the
mid-day in the southwestern and central counties. Some snowflakes
may mix in on the ridgetops, but no accumulations are expected. 
Temperatures will turn out to be as much as 10 degrees warmer than
on Sunday with highs in the lower 40s in the north central 
mountains to the mid 50s in far southeastern Pennsylvania.

It will remain milder than normal overnight with lows in the 30s
across all of the commonwealth. Just some very light rain is
possible in the north early in the night. 

High pressure off the East Coast will continue to cause a warming
southerly breeze on Tuesday. The temperatures will top out in the
lower 50s to mid 60s on Tuesday. Some showers will cross the state
later in the day and a thunderstorm is possible close to Ohio. 

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

Precision Agriculture Weather Forecast For ARMSTRONG County

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Hourly Observations For ARMSTRONG county
1000 AM EST MON FEB 27 2017

ERIE           CLOUDY    44  21  40 S12       30.25R                  
MEADVILLE      CLOUDY    38  18  44 SW8       30.26R                  
FRANKLIN*      CLOUDY    37  18  44 SW9       30.28R                  
NEW CASTLE     CLOUDY    39  20  46 SW5       30.30R                  
BEAVER COUNTY  CLOUDY    39  18  41 S6        30.29R                  
BUTLER*        PTSUNNY   41  18  38 S7        30.30R                  
PITTSBURGH INT CLOUDY    42  18  37 SW9       30.29R                  
PITTSBURGH     CLOUDY    42  16  34 S10       30.30R                  
INDIANA*       CLOUDY    41  19  42 SW8       30.33R                  
LATROBE        PTSUNNY   43  21  42 SW3       30.32S                  
WASHINGTON CO* CLOUDY    43  21  42 SW10      30.32S                  

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

Current Agricultural Weather Conditions in Pennsylvania
Based on observations at 1000am EST, Monday February 27, 2017

Across Pennsylvania...temperatures are near 42 degrees west, near 37 degrees central, and near 47 degrees east. Current sky conditions are cloudy west, partly sunny central, and partly sunny east. In the west, relative humidity is near 34%, and the dew point is near 16 degrees. In the central part of the state, relative humidity is near 48%, and the dew point is near 19 degrees. In the east, relative humidity is near 45%, and the dew point is near 27 degrees. Winds are coming from the south at 10 mph in the west, where conditions are favorable for spraying. Winds are calm in the central, where conditions are favorable for spraying. Winds are coming from the southwest at 10 mph in the east, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 47 degrees at Philadelphia. The lowest temperature is 31 degrees at WilliamSport.

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 ARMSTRONG County,PA

338 AM EST Mon Feb 27 2017

 DAY ONE  Today and Tonight.

Hazardous weather is not expected at this time.

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday.

Severe thunderstorms are possible Wednesday, with damaging winds
being the main threat. 


Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For ARMSTRONG County, PA
Issued at 733 AM EST Mon Feb 27 2017

Cloudy. A chance of light rain this afternoon. Highs in the mid 40s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.

Considerable cloudiness. A chance of light rain in the evening. Lows in the mid 30s. Southeast winds around 5 mph. Chance of rain 30 percent.

Considerable cloudiness. Rain showers likely
mainly in the afternoon. Warmer with highs around 60. Southeast winds 5 to 10 mph
becoming south in the afternoon. Chance of rain 70 percent.

A chance of thunderstorms. Showers. Not as cool. Near steady temperature in the mid 50s. South winds 10 to 15 mph. Chance of rain 80 percent.

Showers. Thunderstorms likely
mainly in the afternoon. Breezy. Unseasonably warm with highs in the mid 60s. Southwest winds 15 to 25 mph. Chance of rain 90 percent.

Considerable cloudiness. Rain showers likely with a chance of thunderstorms in the evening
then a chance of snow and rain showers after midnight. Little or no snow accumulation. Much colder with lows in the lower 30s. Chance of precipitation 70 percent.

Mostly cloudy with scattered snow showers. Much colder with highs in the mid 30s. Chance of snow 50 percent.

Mostly cloudy. Snow likely
mainly after midnight. Little or no snow accumulation. Lows in the mid 20s. Chance of snow 60 percent.

Mostly cloudy. Snow likely in the morning
then a chance of snow showers in the afternoon. Highs in the lower 30s. Chance of snow 60 percent.

Mostly cloudy in the evening
then becoming partly cloudy. Lows around 20.

Partly cloudy in the morning
then becoming partly sunny. Highs in the lower 40s.

Mostly cloudy. Not as cold with lows in the lower 30s.

Partly sunny. Warmer with highs in the mid 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
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                 MAR 4-MAR 8 MAR 6-MAR 12    FEB       FEB-APR                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Below     Normal      Above                      
 Precipitation:      Above       Normal      Above     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

What was perhaps the greatest snow in New England history commenced on this
date. During a ten day period a series of four snowstorms dumped three feet
of snow upon Boston, and the city was snowbound for two weeks. Up to six
feet of snow was reported farther to the north, and drifts covered many one
story homes. (David Ludlum)
A record snowstorm in Maine came to an end. Two to four feet of snow buried
southern and central Maine, with a state record of 57 inches reported at
West Forks. Drifts covered many single story homes, and the weight of the
snow collapsed many roofs. Two to four feet of snow also buried
northeastern Vermont and northeastern Massachusetts. In New Hampshire,
Mount Washington NH reported 97.8 inches of snow, a record storm total for
New England. (24th-28th) (David Ludlum) (The Weather Channel)
A storm spread heavy snow into the Central High Plains Region, and produced
severe thunderstorms in the Southern Plains. Snowfall totals in western
Nebraska ranged up to 19 inches at Sydney. Severe thunderstorms in Oklahoma
produced baseball size hail at Stringtown and Atoka. A storm in the eastern
U.S. produced heavy rain over the Carolinas and heavy snow in the southern
Appalachians and piedmont region. Five inches of rain left four feet of
water in the streets of Greenville SC. Snowfall totals in southwestern
Virginia ranged up to 20 inches. (The National Weather Summary) (Storm
Thunderstorms along a cold front produced heavy rain in southern
California, with up to 2.52 inches reported in Ventura County. Strong winds
accompanying the rain gusted to 55 mph in the Tehachapi Mountains. Rapid
City SD established a February record with an afternoon high of 75 degrees.
(The National Weather Summary) (Storm Data)
Rain and snow prevailed in the southeastern U.S. Up to eight inches of snow
blanketed north central Tennessee, and snowfall totals in western North
Carolina ranged up to 14 inches at Mount Mitchell. (The National Weather
Summary) (Storm Data)
A winter storm produced heavy snow in southeastern Colorado, with 12 inches
reported at Lamar. The same storm produced severe thunderstorms over the
Southern High Plains, with wind gusts to 93 mph reported at the White Sands
Missile Range in New Mexico. Low pressure brought high winds to the Prince
William Sound area of Alaska. Big River Lakes reported wind gusts to 92
mph. (The National Weather Summary) (Storm Data)

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