Profile avatar
nwspittsburgh.bsky.social
Unofficial mirror of the National Weather Service Pittsburgh X Feed (@NWSPittsburgh). Not affiliated with NOAA/NWS. Comments are not monitored, and posts may not be timely. Visit weather.gov/pbz for official information.
1,680 posts 1,354 followers 6 following
Prolific Poster

As a reminder, you can monitor current and forecast air quality at http://www.airnow.gov/

🔥Wildfire Smoke Impacts Higher concentrations of wildfire smoke are expected to drift into the region later this afternoon and especially overnight. Most of this smoke will initially stay aloft, meaning hazy/milky skies will be the only noticeable effect today.

Another chilly night is expected. Temperatures will fall into the to the mid/upper 30s to lower 40s overnight. This will result in some frost development in the Advisory area. There still will be the potential for some sheltered valleys to see some patchy frost.

Here are the climate values for the month of May 2025 at 4 of our climate sites. The general trend for the month was cooler than normal temperatures and above normal rainfall.

Smoke from Canadian wildfires will give the sky a milky, hazy appearance today. Minimal surface impacts are expected today, but we will continue to monitor over the coming days to see if that remains the case.

Temperature is likely to be 10 to 15 degrees above the daily average by Wednesday when the probability of reaching/exceeding 90° peaks. Heat risks increase as well, so take proper preparations if you anticipate prolonged periods outside mid-week.

With low temperatures expected to in the mid to upper 30s over eastern Tucker County, a frost advisory has been issued through 8AM tomorrow morning. Some patchy frost is possible in eastern Preston County. Take steps to protect any sensitive vegetation from the cold.

As a cold front drops across the area today, there is a Marginal (level 1 out of 5) risk of severe thunderstorms southeast of Morgantown during the early afternoon. Strong to damaging wind gusts are the primary severe threat.

40 years ago today -- May 31, 1985 -- the deadliest tornado outbreak to hit our region occurred. Of the 43 tornadoes that crossed the Northeast US and Canada, eight were rated F4. One was rated F5, the first and only F5 on record for Pennsylvania.

A flood advisory has been issued for the point as water from northern WV and southwest PA makes its way up to Pittsburgh. The forecast crest of 18.4ft would flood the Mon Parking Warf, so please be advised in making daytime plans. Be careful if out walking near the riverbanks.

Scattered showers will taper off through tonight with below normal temperature and gusty wind. Dry weather returns Sunday as temperatures reach the 80s by Tuesday. Shower and thunderstorm chances will increase late next week. Visit http://weather.gov/pbz for more details.

For those with interests along Deckers Creek in Morgantown, the gauge has risen rapidly to 6.3 feet which is moderate flood stage. Impacts to some homes and business along Deckers Creek Boulevard, White Avenue, and Old Route 7 are likely.

10:30PM update... starting to see the rainfall rates in northern WV lighten up some and that should continue to be the case, however, numerous road closures and flooding impacts are still ongoing. Another broken line of lighter showers will move through in the next few hours.

Flash Flood Warning continues for Cheat Lake WV, Brookhaven WV and Kingwood WV until 1:45 AM EDT

Flash Flood Warning continues for California PA, Waynesburg PA and Masontown PA until 12:00 AM EDT

Flash Flood Warning continues for Morgantown WV, Fairmont WV and Westover WV until 11:45 PM EDT

Flash Flood Warning continues for Fairmont WV, Mannington WV and Barrackville WV until 11:30 PM EDT

Flash Flood Warning including Cheat Lake WV, Brookhaven WV and Kingwood WV until 10:45 PM EDT

Flash Flood Warning including Claysville PA, West Alexander PA and Wind Ridge PA until 10:15 PM EDT

Ongoing rain around a low pressure center crossing the ridges is causing flooding issues across much of the region, particularly Marion County, WV. Additional rainfall may extend or exacerbate ongoing flooding. Remember: DO NOT DRIVE ACROSS FLOODED ROADS!

Flash Flood Warning including Wheeling WV, Moundsville WV and Martins Ferry OH until 9:15 PM EDT

Flash Flood Warning including California PA, Waynesburg PA and Masontown PA until 9:00 PM EDT

Flash Flood Warning including Morgantown WV, Fairmont WV and Westover WV until 8:45 PM EDT

Flash Flood Warning including Fairmont WV, Mannington WV and Barrackville WV until 8:30 PM EDT

☔Rain chances will increase over the next 3 hours as a disturbance tracks through the region. Rainfall rates could be considered 'moderate' to 'heavy' at times, mostly south of I-70 during the evening rush hour. Use caution when traveling on roads near small creeks/streams.

An additional 1" to 2" or rain today in the ridges of WV in addition to mid-week rains will make the region susceptible to flash flooding this evening/overnight. A flood watch has been issued for the ridges of Mon, Preston, and Tucker Counties accordingly, running from 4p to 2a.

Rain will spread northeast today as a low pressure system passes south of the region. Here is an approximate timeline of when rain may begin, with the highest accumulations favoring northern WV into the Laurel Highlands. Visit http://weather.gov/pittsburgh for your local forecast.

Rain is expected to move across the area Friday, continuing into Saturday morning. Some of the rainfall could be locally heavy, especially south of I 70 across West Virginia.

A few showers should develop this afternoon but they should be scattered in nature and move quickly. A better push of rain arrives tomorrow afternoon continuing into the evening hours. This could pose a localized flooding and severe weather threat across northern WV/southwest PA.

A few showers should develop this afternoon but they should be scattered in nature and move quickly. A better push of rain arrives tomorrow afternoon continuing into the evening hours. This could pose a localized flooding and severe weather threat across northern WV/southwest PA.

Areas of dense fog, notably across portions of eastern Ohio where a Dense Fog Advisory has been issued, may impact your commute this morning. Remember to use the low-beam lights and drive cautiously as visibilities can be reduced to 1/4 mile or less.

Patchy drizzle will taper off overnight. Low clouds and patchy fog will persist through early Thursday morning. The fog will reduce visibility at times. Use caution if traveling.

If you love clouds, you're in for a treat! A broad weather pattern supports cooler temperatures, light rain, and plenty of cloud coverage through Saturday.

Rain has been heaviest over West Virginia Overnight and up to 1.50" of rain has fallen in southern Preston County from Evansville to Kingwood. This should continue into the morning hours creating ponding of water on roadways as hourly rates of around 0.25" fall.

Looking forward to warm weather? You will have to wait about a week, but it appears to be on the way in early June. Average high temperature at Pittsburgh increases from 75 today to 77 by the end of next week. The chart shows the range of possibilities through Friday June 6.

Here's a regional look at rainfall totals to this point. Virtually all of the rain so far today has remained south of US-422. This will change late tonight, as advancing low pressure brings another round of rain, this time to most of the Upper Ohio Valley.

Based on damage reports/radar data, it was determined that a brief tornado occurred just east of Cross Creek County Park in Washington County on May 24th. This is the fourth confirmed tornado in our forecast area on that day, and the 10th so far in 2025.

Rain can be seen on radar creeping northward. We're still very dry around Pittsburgh, so we may not start seeing steady rainfall until overnight or early Wednesday morning due to sub-cloud evaporation. However, some drizzle/sprinkles are possible late this afternoon and evening.

Rain will spread north this afternoon, moving into the Zanesville OH and Morgantown WV areas around 2 pm and Pittsburgh area by 6 pm. Confidence in the rain arrival is highest south of Pittsburgh. North of Pittsburgh, the rain will struggle to reach I-80 after midnight.

High temperatures for the remainder of May are expected to remain a bit below normal, and will be the coolest on Wednesday with clouds and rain. Looking for 80 degree weather? You'll have to wait until June!

We'll be a couple degrees below normal this year in comparison to average highs for past Memorial Days, though we've certainly had some hot afternoons and some cold mornings.

Great weather for your outdoor activities this Memorial Day with plenty of sun and only some scattered afternoon clouds. High temperatures will top out near normal in the low 70s.

Precipitation chances increase late Tuesday into Wednesday with the highest chances of >1" of rain being south of US-22, in the higher terrain of West Virginia and Pennsylvania.

Pleasant weather is forecast for Memorial Day. Plenty of sunshine will be marred only by scattered afternoon clouds, and afternoon highs in the upper 60s to lower 70s are expected.

Cool again tonight, followed by another day of beautiful weather tomorrow. #pawx #ohwx #wvwx

We're starting to see some valley fog fill in to main-stem river valleys (faint light cyan color on satellite) . Slow down and allow a little extra time if on a morning drive. Turn on your low beams an drive slow; visibilities may be worse over area bridges.

Did the sunset tonight feel pretty late? Tonight's sunset (May 24th: 8:38pm) is just about a month away from our latest sunset of the year at 8:54pm. So good news, you still have an extra 16 minutes to look forward to.