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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 15/01/2026

Sorry folks. Twitter/X broke the ability for me to automatically scrape and mirror content here. There aren't currently any good alternative methods, so this profile will not be update unless something changes.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 10/09/2025

In the September 17th to 23rd outlook, the below normal precipitation outlook has been pulled north signaling a push of moisture into the SW PA region. During this period, Sept 20th and 21st have a decent chance for a 0.10 or more of precipitation.

This graphic shows the precipitation outlook compared to climatology for Sept 17 - 23.

This graphic shows the probability of 0.10 or more of precip. Highlighting the 20th and 21st of September.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 10/09/2025

Dry conditions and mostly sunny skies continue today with temperatures still trending up. Highs will end up right around normal this afternoon.

Image showing the the high temperature forecast for today.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 10/09/2025

So....Canaan Valley ended up "winning" for lowest temperature in the CONUS on the 9th.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 10/09/2025

Meteorologists use a different accounting of the seasons than the astronomical cycle, by starting the season at the beginning of a month. This aligns with the yearly temp cycle while also keeping records consistent - astronomical season start dates can vary from year to year.

Image showing the differences between astronomical and meteorological seasons.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 09/09/2025

Here are locations where national high/low temps were observed in 2023 and 2024 (larger circle = greater number of occurrences). Canaan Valley, WV gets the award for lowest national temp a few times a year, mostly in the spring and fall on clear and calm nights like these.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 09/09/2025

Canaan Valley tied for coldest observation site yesterday morning, and it looks like they may have a chance at being the coldest in the US today seeing that they are currently sitting at 23F this morning.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 09/09/2025

Piggybacking on a recent post, here is a comparison of hourly temperature departures from normal back to 1973 at Pittsburgh International Airport. The one on the left is the hourly temperature departure from normal with clear skies, and on the right, mostly cloudy conditions.

Image showing the differences in daily temperatures fluctuations in Pittsburgh compared to cloud coverage.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 09/09/2025

If you're not enjoying the cooler weather, you'll be pleased to know that a pattern shift is anticipated at the end of the week, bringing near to above-average temperatures back for the weekend.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 08/09/2025

A daily record low was set at DuBois, PA today at 37°F degrees. This breaks the old record low of 38°F set in 1986.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 08/09/2025

Wildfire safety refresher! Many everyday things can spark wildfires. Keep ignition sources far away from dry vegetation, wood and other fuel. Be aware of weather conditions. Always follow burn bans & local, state, and federal regulations. weather.gov/safety/wildfire-ww #WeatherReady

Everyday Wildfire Prevention. Most wildfires are caused by humans - many everyday things can create sparks. Keep ignition sources far away from dry vegetation, wood, and other fuel. Have a clear 10 foot radius around campfires, burning brush, etc. Never leave fires unattended, and always properly extinguish. Use grills and smokers on gravel or paved surfaces. Never toss lit cigarettes on the ground. Put ashes in a metal container with a tight lid. Keep water stored near campfires, fire pits, grills, smokers, burning brush, etc. Maintain vehicle brakes & tires, and secure tow chains to avoid dragging. Don't drive on dry grass or brush. Water your lawn and keep grass cut. Mow lawn early in the morning and when it's not windy or excessively dry. Always follow burn bans and regulations. Be aware of weather conditions. Low humidity, heat, drought and winds are conducive to fires.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 08/09/2025

Most of us have seen 25-50% of our normal precipitation in the past 30 days and there's no rain in the forecast for at least the rest of this week. During a drought, stay Weather-Ready by conserving water and practicing fire prevention. weather.gov/safety/drought

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 08/09/2025

Dry conditions and a gradual warming trend (can be expected over the coming week, with large diurnal variations (~90th percentile) in low/high temperatures as minimal cloud coverage allows for efficient overnight cooling.

High and low temperatures through Friday. and average diurnal curves for Pittsburgh during the second week of September

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 08/09/2025

With clear skies and cool upper air, a chilly Monday morning is anticipated.

Temperatures will likely fall into the low 40s to upper-30s across the region between 2am and 7am tomorrow morning.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 07/09/2025

It will be a beautiful day for most today under partly cloudy skies with highs around 10 degrees below normal. Chances of scattered showers only linger for the I-80 corridor.

Todays forecast map with images of clouds and sun pictured over a map with forecast high temperature in the upper 60s to low 70s. A rain icon is displayed only over the I-80 corridor.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 07/09/2025

Dry conditions and a gradual warming trend (from 10 degrees below normal to normal/slightly above normal) can be expected over the coming week.

Image showing probability of precipitation

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 07/09/2025

There's a low chance of rain over the next few day, with a slight possibility of lake-enhanced precipitation tomorrow for areas north of Pittsburgh. Temperatures are expected to be cool tonight and tomorrow, then warm up through the week.

High temperatures will range from the mid-60s to low 70s Sunday into Monday before climbing into the upper-70s and low-80s Tuesday into Sunday.

Overnight low temperatures will be int he 40s to low-50s Sunday into Wednesday; upper-40s to mid-50s Wednesday into Sunday.

Precipitation chances will be very light over the next 7 days across the region. Less than 0.10 inches is likely.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 06/09/2025

Westerly dry air is helping to clear the thick cloud cover, and sunshine is already breaking through in parts of eastern Ohio.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 06/09/2025

After today (tomorrow for the I-80 corridor), hopes look pretty grim for rain over the next week with high pressure in place. Do you like dry fall weather or do you prefer the rain?

Chance of rain at various cities in the forecast area over the next week as a line graph.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 06/09/2025

Two rounds of showers (one in the morning and one in the afternoon) will bring mostly light rain to the area today. The 1st wave will favor areas east of the OH/WV border; the 2nd will favor cities SE of Pittsburgh. Temperature today will be ~10 degrees below the daily average.

Table showing fluctuating precipitation chances for select cities at hourly intervals until early Sunday morning. Text notes two different rounds (morning and afternoon) of rain, each becoming progressively more eastward in impact.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 05/09/2025

Isolated storms are starting to fire up ahead of the cold front that stretches down into West Virginia and Kentucky. The best opportunity for strong to severe storms in our area will be over the next 4 hours.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 05/09/2025

Showers and possible thunderstorms are expected tonight into part of Saturday with a crossing cold front.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 05/09/2025

Partly cloudy skies and warmer temperatures are expected today.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 05/09/2025

Areas of fog have developed across the region, with a Dense Fog Advisory in effect until 9am for portions of western PA. If you are out driving, exercise caution as visibilities could be reduced to less than 1/4 mile. Visit your state's DOT site for the latest road conditions.

Graphic highlighting best practices if driving through dense fog.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 05/09/2025

There is another day with the potential for severe weather on Friday. The main threat will be damaging winds. The timing will feature storms entering the forecast area by 7-8pm and crossing the Pittsburgh area by 9pm-10pm.

The graphic shows the outlooked area in a Marginal.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 04/09/2025

4:31pm: Our office has recorded 0.64" of rain so far today. This is the most we've seen since July 16th!

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 04/09/2025

Clouds and showers across much of the area has reduced the potential for severe weather today. The potential has shifted eastward toward the Laurel Highlands and the higher terrain areas of WV.

Graphic showing a Marginal Risk (1/5) for hazardous weather with passing showers and thunderstorms today east of Pittsburgh.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 04/09/2025

Clouds and showers across much of the area has reduced the potential for severe weather today. The potential has shifted eastward toward the Laurel Highlands and the higher terrain areas of WV.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 04/09/2025

Here is the late morning radar update. Additional showers and thunderstorms are expected to develop this afternoon along and ahead of an approaching cold front.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 04/09/2025

After a morning wave of showers with low probability lightning, a secondary line of storms may develop this afternoon that could pose a damaging wind risk IF enough heating can occur. Areas southeast of Pittsburgh are more likely to be impacted, with timing favoring 2-6pm.

Graphic showing a Marginal Risk (1/5) for hazardous weather with passing showers and thunderstorms today, 2pm-6pm. Areas SE of Pittsburgh are most likely to have the ideal conditions develop for storms to produce damaging wind.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 03/09/2025

With the Wednesday evening update, the outlooked area is unchanged. A Marginal (1 of 5) risk of severe weather is still expected for Thursday. Also attached is a timing graphic for the event. The possibility of a tornado can't be ruled out tomorrow.

The graphic shows the outlooked area and the types of severe weather expected.

This graphic shows the timing of the severe weather.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 03/09/2025

🌤️Some fair weather clouds will dot the sky through the afternoon, but otherwise plenty of sun is in store with highs in the low 80s. Enjoy the nice day today before the showers and storms return tomorrow.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 03/09/2025

Latest model trends suggest two waves of showers and thunderstorms will cross Thursday ahead of a cold front. If enough heating can occur between these two waves, the storm environment could favor a damaging wind (and a non-zero tornado) threat.

Graphic showing a Marginal Risk (1/5) for hazardous weather with passing showers and thunderstorms Thursday, favoring the afternoon and evening. Areas SE of Pittsburgh are most likely to have the ideal conditions develop for damaging wind.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 03/09/2025

Temperatures will be a little up-and-down for the rest of the work week. Two fronts - one crossing Thursday and the next Friday night into Saturday - will provide rain chances. After the second, another run of cooler temperatures is expected.

Table showing high temperatures for a number of locations for Wednesday through Sunday. The warmest days will be Wednesday and Friday, with a cooldown this weekend.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 02/09/2025

Here's a look at the weather summary for August 2025 at our climate sites as well as some extra tidbits.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 02/09/2025

Though an isolated afternoon shower over the higher terrain east of Pittsburgh can't be ruled out today/tomorrow, the focus for the next widespread rain event is Thursday with a cold front passage. A secondary cold front may offer an additional chance Saturday.

Chart displaying 6-hour precipitation chances for select cities in the Pittsburgh forecast area through Sunday. It highlights the likely dry weather today/Wednesday before chances increase Thursday and Saturday (chances being highest on Thursday).

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 02/09/2025

If you're a night owl and have noticed unusual satellite behavior around 1 AM, rest assured it's not a malfunction. The missing data is a protective measure to prevent the satellite from directly imaging the sun as it passes behind the Earth, which can damage its sensors.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 01/09/2025

With meteorological summer now in our past, here is the summary for the summer of 2025 (June 1st - August 31st).

Table showing the seasonal summary for 2025 at our climate sites.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 01/09/2025

Happy September! Meteorological fall has officially begun. Expect another quiet weather day today, with our next chance for rain on Thursday.

High temperatures across the region will range from the upper-70s to low-80s; the ridges will be in the low-70s.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 31/08/2025

We keep rainfall totals at the WFO as well with the total at the office being 1.23 for the month.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 31/08/2025

Here is tomorrow's Labor Day forecast! During the day, expect sunny skies with temperatures near 80F. Overnight, some clouds are expected, however, mostly clear skies with temperatures in the upper 40s to mid-50s.

Picture of the Labor Day forecast. Sunny with temperatures near 80F and lows overnight between upper 40s to low 50s.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 31/08/2025

Feeling a little warmer today than yesterday! ☀️ Still looking at dry and calm weather for the next three days. When's the rain coming? Looks like Wednesday into Thursday with a passing cold front. 🌧️

High temperatures today will be in the mid to upper-70s; low-70s in the ridges.

Probability of rain increases Wednesday into Thursday with a passing cold front.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 31/08/2025

Brrr! Another chilly night ahead, with temperatures dropping into the 40s under a clear sky.

Overnight low temperatures across the region will be below average, low-50s to low-40s. The ridges and areas near I-80 will be the coldest.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 30/08/2025

It's the final Saturday of meteorological summer, and the weather is beautiful! 😎

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 30/08/2025

Here is a look at this morning's observed low temperatures with many locations in the low 40s and upper 30s. After a chilly start, temperatures are expected to rise into the low-70s today. Tomorrow and Labor Day are expected to be more seasonable with highs around 80F.

Map of observed low temperatures this morning.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 30/08/2025

Temperatures this morning are chilly, with some areas seeing readings in the upper 30s.

Current temperatures across the region range from low-50s to upper-30s.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 30/08/2025

A few counties in Pennsylvania are under a Frost Advisory this morning. How uncommon is frost in August? Quite unusual. For comparison, even in typically cool locations such as Davis, WV, the average frost doesn't occur until around September 30th.

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NWS Pittsburgh (Unofficial Mirror) @nwspittsburgh.bsky.social · 30/08/2025

Expect temperatures to continue falling overnight under mostly clear skies, leading to a chilly Saturday morning with some areas reaching the low 40s.

Overnight temperatures will be in the low to upper-40s.

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