Hail and tornadoes in Allegheny County, PA
Since December 2020, radar estimated hail somewhere in Allegheny County, PA on 50 days. The biggest estimate: 3 in or larger (teacup), on Sun, Dec 29, 2024. Hail was reported to the National Weather Service inside the county on 13 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.
Hail on record since 1955
NOAA's Storm Events database lists 387 hail reports in Allegheny County, PA on 126 days, 4 of them 2 inches or larger. The largest: 2 in, near Imperial, on Sat, May 25, 2024.
By decade: 1990s: 41 · 2000s: 87 · 2010s: 160 · 2020s: 99
Tornadoes since 1950
17 tornadoes have touched Allegheny County, PA since 1950, none of them rated F3/EF3 or stronger. They killed 0 and injured 50.
Strongest
- Wed, Jun 26, 2024 · EF1 · 6.36 mi long, 100 yd wide · near Boggs
- Wed, Jun 26, 2024 · EF1 · 2.17 mi long, 275 yd wide · near East Mc Keesport
- Fri, May 17, 2024 · EF1 · 1.88 mi long, 125 yd wide · near Cherry City
- Wed, May 8, 2024 · EF1 · 0.2 mi long, 150 yd wide · near Cliff Mine
- Thu, Oct 21, 2021 · EF1 · 4.7 mi long, 400 yd wide · near Allison Park
Most recent
- Wed, Nov 20, 2024 · EF0 · 1 mi long, 75 yd wide · near Aspinwall
- Wed, Jun 26, 2024 · EF1 · 2.17 mi long, 275 yd wide · near East Mc Keesport
- Wed, Jun 26, 2024 · EF1 · 6.36 mi long, 100 yd wide · near Boggs
- Fri, May 17, 2024 · EF1 · 1.88 mi long, 125 yd wide · near Cherry City
- Fri, May 17, 2024 · EF0 · 5.39 mi long, 75 yd wide · near Ehama
- Fri, May 17, 2024 · EFU · 0.61 mi long, 50 yd wide · near Allegheny Co Ar
- Wed, May 8, 2024 · EF1 · 0.2 mi long, 150 yd wide · near Cliff Mine
- Thu, Oct 21, 2021 · EF1 · 4.7 mi long, 400 yd wide · near Allison Park
- Thu, Oct 21, 2021 · EF0 · 0.54 mi long, 100 yd wide · near Emsworth
- Mon, Jun 21, 2021 · EF0 · 1.3 mi long, 50 yd wide · near Warrendale
By decade: 1990s: 2 · 2000s: 2 · 2010s: 2 · 2020s: 11
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since December 2020
- Thu, Sep 3, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (1 SW Braddock, PA)
- Wed, Sep 2, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Aug 22, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 15, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Mon, Aug 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 8, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 6, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 20, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 17, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jun 6, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, May 13, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Apr 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Nov 8, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Oct 8, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Sep 12, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 7, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 4, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jul 25, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 16, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.25 in (2 SE Valencia, PA)
- Sat, Jun 28, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 25, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 12, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Apr 2, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.75 in (1 W West View, PA)
- 1.25 in (1 SE Fox Chapel, PA)
- Sun, Mar 16, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 SW Reserve Township, PA)
- 1.25 in (3 SE Valencia, PA)
- 1 in (Harrison Township, PA)
- Sun, Dec 29, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
No hail reported in the county.
- Thu, Aug 29, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (South Park Township, PA)
- Wed, Aug 28, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Aug 6, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Tarentum, PA)
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
No hail reported in the county.
- Tue, Jun 18, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 17, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, May 25, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (Hickman, PA)
- 2 in (Imperial, PA)
- Thu, May 23, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, May 14, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Apr 14, 2024Reported in the county
- 1 in (Oakdale, PA)
- Tue, Jan 16, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Dec 17, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 24, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 12, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Springdale, PA)
- Thu, Jul 13, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jun 3, 2023Reported in the county
- 1 in (1 NE Wittmer, PA)
- Thu, Aug 4, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 23, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (WEST VIEW, PA)
- Wed, Jun 22, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, May 22, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Sep 1, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 31, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Aug 29, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 12, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 7, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 30, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (SOUTH SIDE FLATS, PA)
- Sun, Jun 13, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (3 NW EDGEWOOD, PA)
- 1 in (1 NE MCCANDLESS, PA)
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.