Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 55, NWS Cleveland, OH

July 15, 2021Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 15, 2021, 7:37 PM EDT for Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania. It was in force for 38 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 15, 2021, 7:37 PM EDT (23:37 UTC)
Expired
Jul 15, 2021, 8:15 PM EDT
In force
38 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Ashtabula County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 125 km from the middle of the area, began a volume at 23:36 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.

What was reported inside it

TimeReportWhereRemark
Jul 15, 7:41 PM EDTTSTM WND DMG5 W Conneautville, PATREE AND POWER POLE DOWN AT S. BEAVER CENTER RD. AND SR-198.
Jul 15, 7:52 PM EDTTSTM WND DMGConneautville, PATREE DOWN.
Jul 15, 8:22 PM EDTTSTM WND DMG2 Nne Conneaut Lakeshor, PATREE DOWN ON ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.6 hours before the alert went out and 153 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2021-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2021-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
25 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

475 
WUUS51 KCLE 152337
SVRCLE
OHC007-PAC039-049-160015-
/O.NEW.KCLE.SV.W.0055.210715T2337Z-210716T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
737 PM EDT Thu Jul 15 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  East central Ashtabula County in northeastern Ohio...
  Southwestern Erie County in northwestern Pennsylvania...
  Northwestern Crawford County in northwestern Pennsylvania...

* Until 815 PM EDT.

* At 737 PM EDT, a severe thunderstorm was located 10 miles north of
  Andover, or 12 miles southeast of Ashtabula, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Meadville, Albion, Harmonsburg, Pymatuning North, Pierpont,
  Saegertown, Conneautville, Cranesville, Springboro, Platea,
  Kelloggsville and Conneaut Lakeshore.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4169 8062 4186 8064 4198 8017 4162 8009
TIME...MOT...LOC 2337Z 261DEG 29KT 4175 8063 

HAIL...<.75IN
WIND...60MPH
 
$$

Maines
2 follow-up statements
182 
WWUS51 KCLE 152357
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
757 PM EDT Thu Jul 15 2021

OHC007-160007-
/O.CAN.KCLE.SV.W.0055.000000T0000Z-210716T0015Z/
Ashtabula OH-
757 PM EDT Thu Jul 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ASHTABULA COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4172 8049 4189 8050 4194 8031 4198 8017
      4172 8011
TIME...MOT...LOC 2357Z 261DEG 27KT 4181 8038 

$$

PAC039-049-160015-
/O.CON.KCLE.SV.W.0055.000000T0000Z-210716T0015Z/
Erie PA-Crawford PA-
757 PM EDT Thu Jul 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTHWESTERN ERIE AND NORTHWESTERN CRAWFORD COUNTIES...

At 757 PM EDT, a severe thunderstorm was located near Albion, or 12
miles southeast of Conneaut, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Albion, Saegertown, Conneautville, Cranesville and Springboro. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4172 8049 4189 8050 4194 8031 4198 8017
      4172 8011
TIME...MOT...LOC 2357Z 261DEG 27KT 4181 8038 

HAIL...<.75IN
WIND...60MPH
 
$$

Maines
634 
WWUS51 KCLE 160017
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
817 PM EDT Thu Jul 15 2021

PAC039-049-160027-
/O.EXP.KCLE.SV.W.0055.000000T0000Z-210716T0015Z/
Erie PA-Crawford PA-
817 PM EDT Thu Jul 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ERIE AND
NORTHWESTERN CRAWFORD COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.  However gusty winds are still possible with
this thunderstorm.

LAT...LON 4172 8049 4189 8050 4194 8031 4198 8017
      4172 8011
TIME...MOT...LOC 0017Z 270DEG 29KT 4183 8018 

$$

Maines

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 15, 3:03 PM EDTSpecial Weather StatementCLELucas27 min
Jul 15, 3:16 PM EDTSpecial Marine WarningCLE89 min
Jul 15, 5:14 PM EDTSpecial Marine WarningCLE91 min
Jul 15, 5:25 PM EDTSpecial Weather StatementCLEKnox35 min
Jul 15, 6:01 PM EDTSpecial Weather StatementCLEErie29 min
Jul 15, 6:48 PM EDTSpecial Weather StatementCLELake27 min
Jul 15, 6:49 PM EDTSpecial Marine WarningCLE75 min
Jul 15, 6:54 PM EDTSpecial Weather StatementCLESeneca36 min
Jul 15, 6:56 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake, Trumbull49 min
Jul 15, 7:56 PM EDTSpecial Weather StatementCLEPortage, Trumbull49 min
Jul 15, 7:27 PM EDTSpecial Weather StatementCLEErie33 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021Severe Thunderstorm Warnings in Ohio, 2021Every severe thunderstorm warning in 2021

Sources

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