Tornado Warning 49, NWS Pittsburgh, PA

386 
WWUS51 KPBZ 021732
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
132 PM EDT Sun Aug 2 2026

PAC007-021800-
/O.CON.KPBZ.TO.W.0049.000000T0000Z-260802T1800Z/
Beaver PA-
132 PM EDT Sun Aug 2 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 2 PM EDT FOR SOUTHWESTERN
BEAVER COUNTY...

At 132 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of Shippingport, or 10 miles northeast of
Weirton, moving northeast at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed. Damage
         to roofs, windows and vehicles will occur. Tree damage is
         likely.

Locations impacted include...
  Hanover Township and Raccoon Creek State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4061 8034 4055 8026 4050 8033 4048 8039
      4050 8043 4054 8047
TIME...MOT...LOC 1725Z 241DEG 16KT 4049 8046

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

MLB

067 
WWUS51 KPBZ 021739
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
139 PM EDT Sun Aug 2 2026

PAC007-021800-
/O.CON.KPBZ.TO.W.0049.000000T0000Z-260802T1800Z/
Beaver PA-
139 PM EDT Sun Aug 2 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 2 PM EDT FOR SOUTH CENTRAL
BEAVER COUNTY...

At 139 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles south of Shippingport, or 8 miles west of Moon
Township, moving northeast at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed. Damage
         to roofs, windows and vehicles will occur. Tree damage is
         likely.

Locations impacted include...
  Mainly rural areas of South Central Beaver County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4061 8034 4055 8026 4050 8035 4055 8042
TIME...MOT...LOC 1732Z 240DEG 17KT 4051 8041

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

MLB

825 
WWUS51 KPBZ 021746
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
146 PM EDT Sun Aug 2 2026

PAC007-021800-
/O.CON.KPBZ.TO.W.0049.000000T0000Z-260802T1800Z/
Beaver PA-
146 PM EDT Sun Aug 2 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 2 PM EDT FOR SOUTH CENTRAL
BEAVER COUNTY...

At 146 PM EDT, a severe thunderstorm capable of producing a tornado
was located 6 miles southwest of Aliquippa, moving northeast at 20
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed. Damage
         to roofs, windows and vehicles will occur. Tree damage is
         likely.

Locations impacted include...
  Mainly rural areas of South Central Beaver County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.

&&

LAT...LON 4055 8026 4052 8032 4057 8039 4061 8034
TIME...MOT...LOC 1739Z 235DEG 18KT 4054 8037

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

MLB

304 
WWUS51 KPBZ 021752
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
152 PM EDT Sun Aug 2 2026

PAC007-021802-
/O.EXP.KPBZ.TO.W.0049.000000T0000Z-260802T1800Z/
Beaver PA-
152 PM EDT Sun Aug 2 2026

...TORNADO WARNING WILL EXPIRE AT 2 PM EDT FOR SOUTH CENTRAL BEAVER
COUNTY...

The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However, heavy rain
is still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office.

&&

LAT...LON 4055 8026 4052 8032 4057 8039 4061 8034
TIME...MOT...LOC 1746Z 235DEG 18KT 4056 8033

$$

MLB

Area Forecast Discussion
National Weather Service Pittsburgh PA
116 PM EDT Sun Aug 2 2026

.WHAT HAS CHANGED...
A Flood Watch remains in effect while afternoon thunderstorms
pose a limited damaging wind and tornadic threat. Scenarios for
another active period featuring non-zero severe chances start
again Wednesday into next weekend.

&&

.KEY MESSAGES...
1) Flood Watch in effect through midnight due to heavy rain
potential, with storms also posing limited damaging wind and
tornadic threats.

2) An active pattern develops Wednesday into next weekend that
could feature varying hazardous weather risks.

&&

.DISCUSSION...
KEY MESSAGE 1...
Jet-induced ascent along the western periphery of a sagging OH
River Valley trough in combination with a significantly moist
environment and enough diurnal heating to foster showers and
thunderstorms through this evening. The focus for activity is
east of I-77 in OH as satellite imagery highlights an area of
weak convergence near the OH/WV border currently that will shift
NE through tonight.

Flooding remains the highest risk factor due to: 1) PWAT values
approaching 1.7" or around 90th percentile amounts (dry slotting
around upper low as reduced amounts compared to 12z sounding);
2) warm cloud layer aiding warm rain processes (13.5kft freezing
height); 3) storm motion not too far off parallel from surface
boundary potentially allowing for storm training; and 4)
potential surface heating within cloud breaks to improve
buoyancy and help rainfall rates (ongoing storms suggests
2-3"/hr rates possible, higher can't be ruled out). The most
susceptible areas are those previously receiving rain,
specifically a narrow swath from north central Greene County
(PA) through central Allegheny County (PA) that saw anywhere
from 1-2.5" already today. The biggest uncertainty lies in
whether enough buoyancy and convergence develop to result in
more isolated vs. more widespread storm coverage.

Other hazards to monitor but are of lower probability is
damaging wind and tornadoes. For damaging wind, the threat is
tied to deep enough convection to tap into a layer of drier air
between 600-400mb that may be enough for downburst potential;
however, latest ACARS a more bearish on this dry layer which
suggests the limited threat is even lower. For tornadoes, 0-3km
hodograph curvature insinuates potential for right-movers (think
motion NE at 45 degrees) to maximize sfc vorticity and create
generally isolated, weak tornadoes. Hi-res guidance suggests any
such occurrence is favored SE of Pittsburgh where low-level
curvature and afternoon heating may be best maximized prior to
the convergent line arriving.

Loss of heating plus eastward movement of the upper trough
favors downward trends of convective activity after 10pm with
all risks ending by midnight (if not, sooner).

KEY MESSAGE 2...
Shortwave ridging and surface high pressure favors a drying
trend Monday into Tuesday, though enough moisture may linger to
offer low probability afternoon thunderstorms that develop at
peak diurnal heating.

Long-range pattern favors renewed shortwave trough movement
through the Ohio River Valley but with varying depths and
timing. If the pattern features a weaker trough farther north,
near daily precipitation chances may better be accompanied by
severe/flood hazards due to better moisture influx and limited
airmass changing. A deeper trough pattern would result in less
frequent precipitation chances that limits the days of potential
impacts. It remains best to monitor forecast trends for
Wednesday into next weekend to better understand potential storm
timing and their associated risks.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
High confidence of IFR cigs overnight into Monday morning and
with any storm that impacts an airport.

Numerous showers and storms are expected through early evening.
These will contain heavy rain that will drop the vis below 3SM
in nearly every storm that impacts a terminal. The activity
moves east this evening owing to widespread IFR stratus by 6Z.
One of the forecast challenges is when will the cigs go above
1KFT? Given upstream conditions, elected to hold onto IFR clouds
through midday Monday then lift to MVFR at the every end of the
forecast.

Wind will be light from the south then calm overnight then
northerly Monday.

Outlook... Brief IFR vis restriction are possible the latter
part of this week with an upper level trough overhead. Showers
and storms will be scattered mainly during the afternoon and
evening, so not an all day event.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch until midnight EDT tonight for PAZ007>009-013>016-
     020>022-029-031-073>078.
OH...Flood Watch until midnight EDT tonight for OHZ040-041-050.
WV...Flood Watch until midnight EDT tonight for WVZ001>004-012-021-
     509>514.

&&

DISCUSSION...Frazier
AVIATION...McMullen

Hazardous Weather Outlook
National Weather Service Pittsburgh PA
1233 PM EDT Sun Aug 2 2026

OHZ040-041-050-PAZ007>009-013>016-020>022-029-031-073>078-WVZ001>004-
012-021-509>514-031645-
Carroll-Columbiana-Jefferson OH-Mercer-Venango-Forest-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Washington-
Greene-Westmoreland-Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Indiana-Higher Elevations of Indiana-
Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
1233 PM EDT Sun Aug 2 2026

...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

This Hazardous Weather Outlook is for east central Ohio, western
Pennsylvania, and northern West Virginia.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

Additionally, if storms become strong enough, there is a non-zero
risk for damaging wind and a weak tornado.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

A more active weather pattern late in the week into the weekend could
portend to increased hazardous weather chances. Monitor the forecast
trends in the coming days to best understand the potential risks in
play.

.SPOTTER INFORMATION STATEMENT...

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

OHZ039-048-049-057>059-068-069-031645-
Tuscarawas-Coshocton-Harrison-Muskingum-Guernsey-Belmont-Noble-
Monroe-
1233 PM EDT Sun Aug 2 2026

This Hazardous Weather Outlook is for east central Ohio.

.DAY ONE...This afternoon and tonight.

There is a low probability for repeated heavy rain showers and
thunderstorms to result in localized flash flooding this afternoon.
Additionally, if storms become strong enough, there is a non-zero
risk for damaging wind and a weak tornado.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

A more active weather pattern late in the week into the weekend could
portend to increased hazardous weather chances. Monitor the forecast
trends in the coming days to best understand the potential risks in
play.

.SPOTTER INFORMATION STATEMENT...

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

Frazier