Alert archive / Ohio / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 166, NWS Pittsburgh, PA

August 25, 20204 counties in Ohio

NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 25, 2020, 3:57 PM EDT for 4 counties in Ohio. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 25, 2020, 3:57 PM EDT (19:57 UTC)
Expired: Aug 25, 2020, 4:26 PM EDT
In force: 29 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Guernsey County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH

The radar

The Pittsburgh radar (KPBZ), 131 km from the middle of the area, began a volume at 19:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 25, 1:21 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.0 hours before the alert went out and 132 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1286 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 3:31 PM EDT, 26 minutes earlier.

Area forecast discussion, Aug 25, 3:31 PM EDT, 26 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Pittsburgh PA
331 PM EDT Tue Aug 25 2020

.SYNOPSIS...
Strong to severe storms will move quickly southward and will clear
the region by early this evening. Temperatures will be a bit cooler
overnight.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
Update to adjust PoPs and line of storms rushes southward. Northern
part of the watch has been cleared and will continue to clear
more counties once the convection shifts further southward.

Convection will weaken and wane into the late evening and overnight
hours as shortwave ridging suppresses residual showers and clouds.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...
Another shortwave is projected for Wednesday passage. That system
will pull the frontal boundary north and eastward once again and
destabilize the area via increased dewpoints and warmth. Deep layer
shear remains favorable for severe and the Upr OH rmns under a slight
svr risk. Primary problem will again be damaging gusts during the
mid afternoon with weakening toward evening.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
Flow is expected be remain relatively fast and become more zonal for
the latter half of the week. This will support a series of
progressive shortwave passages with periodic rain chance fueled by
the northern fringe of tropical moisture funneling over the mid
Atlantic region. A stronger cold front/trough passage is indicated
for the weekend to continue the rain chance. Expect seasonable
temperature throughout.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
Storms will advance through the entire region this afternoon as a
shortwave crosses the Great Lakes. Strong wind gusts are likely to be
embedded within convection due deep wind shear aloft and dry air
accelerated to the surface; MVFR to IFR vis may occur during heavy
downpours. In areas separated from convection, VFR will prevail.

Showers and storms will fizzle out after dark; with dry air advancing
into the region VFR will prevail.

A new shortwave tomorrow will create thunderstorm chances again in
the afternoon in eastern Ohio; added VCTS for ZZV but more sites may
need to be added later.

.Outlook...
VFR conditions will largely prevail through much of this week with
only periodic restrictions due to thunderstorms and morning fog.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...None.
OH...None.
PA...None.
WV...None.

&&

Hazardous weather outlook, Aug 25, 1:26 PM EDT, 2 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Pittsburgh PA
126 PM EDT Tue Aug 25 2020

MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-
029-031-073>076-WVZ001>004-012-021-509>514-261730-
Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-
Jefferson OH-Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-
Forest-Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny-
Armstrong-Indiana-Washington-Greene-Westmoreland-Westmoreland Ridges-
Fayette-Fayette Ridges-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
126 PM EDT Tue Aug 25 2020

...SEVERE THUNDERSTORM WATCH 449 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for western Maryland, east
central Ohio, northwest Pennsylvania, southwest Pennsylvania,
western Pennsylvania, northern West Virginia and the northern
panhandle of 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.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a slight risk for severe thunderstorms on Wednesday. The
primary hazard will be damaging wind gusts.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Aug 25, 3:13 PM EDT, 44 minutes before

Special Weather Statement
National Weather Service Pittsburgh PA
313 PM EDT Tue Aug 25 2020

WVZ012-021-251945-
Marion-Wetzel-
313 PM EDT Tue Aug 25 2020

...AN AREA OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WIND
WILL AFFECT WETZEL AND SOUTHWESTERN MARION COUNTIES...

At 313 PM EDT, strong thunderstorms were clustered over Pine Grove,
or 8 miles southeast of New Martinsville, moving southeast at 30 mph.

Wind gusts up to 55 mph are possible with this storm.

Locations impacted include...
New Martinsville...               Mannington...
Pine Grove...                     Jacksonburg...
Smithfield...                     Grangeville...
Wileyville...                     Big Run...
Reader...                         Rachel...
Folsom...                         Porters Falls...

LAT...LON 3944 8056 3943 8058 3945 8058 3944 8061
      3947 8064 3946 8067 3948 8067 3947 8071
      3955 8079 3956 8082 3960 8085 3958 8088
      3959 8090 3968 8085 3956 8027 3944 8035
      3947 8049 3946 8051 3943 8052 3943 8054
TIME...MOT...LOC 1913Z 296DEG 25KT 3957 8072

Local storm report, Aug 25, 3:28 PM EDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
328 PM EDT TUE AUG 25 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0247 PM     HAIL             ISELIN                  40.56N  79.39W
08/25/2020  M1.25 INCH       INDIANA            PA   PUBLIC

&&

EVENT NUMBER PBZ2001239

BROWN

Local storm report, Aug 25, 3:32 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
332 PM EDT TUE AUG 25 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0250 PM     HAIL             1 S FLUSHING            40.13N  81.07W
08/25/2020  E1.00 INCH       BELMONT            OH   PUBLIC

&&

EVENT NUMBER PBZ2001240

BROWN

Special weather statement, Aug 25, 3:35 PM EDT, 22 minutes before

Special Weather Statement
National Weather Service Pittsburgh PA
335 PM EDT Tue Aug 25 2020

OHZ059-068-069-WVZ004-012-252000-
Monroe-Noble-Belmont-Marshall-Wetzel-
335 PM EDT Tue Aug 25 2020

...AN AREA OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL
AND GUSTY WIND WILL AFFECT MONROE...SOUTHWESTERN BELMONT...
NORTHEASTERN NOBLE...NORTHWESTERN WETZEL AND SOUTHWESTERN MARSHALL
COUNTIES...

At 335 PM EDT, strong thunderstorms were clustered over Woodsfield,
moving southeast at 25 mph.

Wind gusts up to 55 mph and small hail are possible with this storm.

Locations impacted include...
New Martinsville...               Woodsfield...
Paden City...                     Powhatan Point...
Sardis...                         Beallsville...
Clarington...                     Summerfield...
Lewisville...                     Jerusalem...
Wilson...                         Cameron...

LAT...LON 3961 8095 3959 8098 3978 8140 3995 8125
      3995 8124 3996 8123 3982 8070 3959 8087
      3958 8089
TIME...MOT...LOC 1935Z 303DEG 22KT 3979 8113

Local storm report, Aug 25, 3:44 PM EDT, 13 minutes before

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Local storm report, Aug 25, 3:51 PM EDT, 6 minutes before

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        Please try again in a few minutes.
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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 25, 6:41 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Westmoreland	19 min
Aug 25, 7:10 AM EDT	Special Weather Statement	PBZ	Westmoreland	20 min
Aug 25, 7:41 AM EDT	Special Weather Statement	PBZ	Westmoreland	49 min
Aug 25, 7:55 AM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	50 min
Aug 25, 8:06 AM EDT	Special Weather Statement	PBZ	Allegheny	24 min
Aug 25, 8:18 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	27 min
Aug 25, 9:05 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette	25 min
Aug 25, 11:58 AM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	32 min
Aug 25, 12:29 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Forest, Mercer, Venango	46 min
Aug 25, 1:12 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Mercer, Venango	48 min
Aug 25, 1:36 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	39 min
Aug 25, 2:07 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion, Mercer, Venango	38 min
Aug 25, 2:09 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Westmoreland	51 min
Aug 25, 2:26 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	23 min
Aug 25, 2:29 PM EDT	Special Weather Statement	PBZ	Washington	31 min
Aug 25, 2:34 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Indiana, Westmoreland	41 min
Aug 25, 3:07 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	38 min
Aug 25, 3:15 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Fayette, Indiana, Westmoreland	45 min
Aug 25, 3:39 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington	51 min
Aug 25, 4:00 PM EDT	Special Weather Statement	PBZ	Allegheny	30 min
Aug 25, 4:08 PM EDT	Special Weather Statement	PBZ	Westmoreland	37 min
Aug 25, 4:13 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	32 min
Aug 25, 4:20 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	40 min
Aug 25, 4:40 PM EDT	Special Weather Statement	PBZ	Fayette, Washington	50 min
Aug 25, 5:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	29 min
Aug 25, 5:05 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	25 min
Aug 25, 5:34 PM EDT	Special Weather Statement	PBZ	Fayette	26 min
Aug 25, 1:18 PM EDT	Special Weather Statement	PBZ	Coshocton, Harrison, Tuscarawas	42 min
Aug 25, 1:43 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey, Harrison, Tuscarawas	32 min
Aug 25, 1:53 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Tuscarawas	52 min
Aug 25, 1:57 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Harrison, Muskingum, Tuscarawas	48 min
Aug 25, 2:00 PM EDT	Special Weather Statement	PBZ	Muskingum	30 min
Aug 25, 2:23 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Harrison, Jefferson	52 min
Aug 25, 2:47 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton	43 min
Aug 25, 2:52 PM EDT	Special Weather Statement	PBZ	Belmont	38 min
Aug 25, 3:11 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum, Noble	49 min
Aug 25, 3:26 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Coshocton, Guernsey, Harrison, Muskingum, Noble and 1 more	49 min
Aug 25, 3:35 PM EDT	Special Weather Statement	PBZ	Monroe	25 min
Aug 25, 8:55 AM EDT	Special Weather Statement	PBZ	Tucker	35 min
Aug 25, 3:13 PM EDT	Special Weather Statement	PBZ	Wetzel	32 min
Aug 25, 5:03 PM EDT	Severe Thunderstorm Warning	PBZ	Preston, Tucker	42 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2020 Every severe thunderstorm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.