Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 116, NWS Cleveland, OH

October 15, 2021Crawford County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Oct 15, 2021, 2:43 PM EDT for Crawford County, Pennsylvania. It was in force for 44 min. 1 report 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: Oct 15, 2021, 2:43 PM EDT (18:43 UTC)
Expired: Oct 15, 2021, 3:27 PM EDT
In force: 44 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

County Crawford County, PA

The radar

The Pittsburgh radar (KPBZ), 124 km from the middle of the area, began a volume at 18:45 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

Time	Report	Where	Remark
Oct 15, 2:46 PM EDT	TSTM WND DMG	3 N Cochranton, PA	SEVERAL TREES AND POWER LINES WERE BLOWN DOWN.

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, 6.7 hours before the alert went out and 136 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: 685 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

215 
WUUS51 KCLE 151843
SVRCLE
PAC039-151945-
/O.NEW.KCLE.SV.W.0116.211015T1843Z-211015T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
243 PM EDT Fri Oct 15 2021

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Eastern Crawford County in northwestern Pennsylvania...

* Until 345 PM EDT.

* At 242 PM EDT, a severe thunderstorm was located near Guys Mills,
  or near Meadville, moving east at 30 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect damage to 
           trees and power lines.

* Locations impacted include...
  Titusville, Riceville, Guys Mills, Hydetown, Blooming Valley,
  Townville and Spartansburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4162 7982 4157 7988 4157 7989 4155 7992
      4154 7993 4155 8008 4162 8010 4170 8006
      4185 7961 4162 7962
TIME...MOT...LOC 1842Z 249DEG 24KT 4161 8003 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Sefcovic

2 follow-up statements

259 
WWUS51 KCLE 151915
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
315 PM EDT Fri Oct 15 2021

PAC039-151945-
/O.CON.KCLE.SV.W.0116.000000T0000Z-211015T1945Z/
Crawford PA-
315 PM EDT Fri Oct 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR EAST CENTRAL CRAWFORD COUNTY...

At 313 PM EDT, a severe thunderstorm was located near Titusville, or 
16 miles north of Oil City, moving east at 20 mph. A tornado warning 
is also in effect for this storm.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect damage to 
         trees and power lines.

Locations impacted include...
Titusville, Hydetown and Townville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4157 7990 4171 7994 4181 7961 4162 7962
      4162 7982 4157 7988
TIME...MOT...LOC 1913Z 256DEG 18KT 4165 7980 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Sefcovic

780 
WWUS51 KCLE 151927 RRA
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
327 PM EDT Fri Oct 15 2021

PAC039-151937-
/O.CAN.KCLE.SV.W.0116.000000T0000Z-211015T1945Z/
Crawford PA-
327 PM EDT Fri Oct 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CRAWFORD COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

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

LAT...LON 4157 7990 4171 7994 4181 7961 4162 7962
      4162 7982 4157 7988
TIME...MOT...LOC 1925Z 249DEG 24KT 4168 7968 

$$

Sefcovic

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 15, 2:31 PM EDT	Special Weather Statement	CLE	Crawford	29 min
Oct 15, 2:55 PM EDT	Tornado Warning	CLE	Crawford	32 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021 Every 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.