Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 188, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 29, 2021, 2:14 PM EDT for Blair County, Centre County, Huntingdon County, Pennsylvania. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2021, 2:14 PM EDT (18:14 UTC)
- Expired
- Jul 29, 2021, 3:00 PM EDT
- In force
- 46 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Blair County, PA, Centre County, PA, Huntingdon County, PA
The radar
The State College radar (KCCX), 29 km from the middle of the area, began a volume at 18:17 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 nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 6.2 hours before the alert went out and 173 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.
- Mixed-layer CAPE
- 136 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1222 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
050
WUUS51 KCTP 291814
SVRCTP
PAC013-027-061-291900-
/O.NEW.KCTP.SV.W.0188.210729T1814Z-210729T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
214 PM EDT Thu Jul 29 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Northern Huntingdon County in central Pennsylvania...
South central Centre County in central Pennsylvania...
Northeastern Blair County in central Pennsylvania...
* Until 300 PM EDT.
* At 214 PM EDT, a severe thunderstorm was located near Tyrone,
moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Tyrone, Bald Eagle, Warriors Mark, Pine Grove Mills, Ramblewood,
Birmingham, Franklinville, Whipple Dam State Park, Mcalevys Fort
and Rock Springs.
This includes Interstate 99 from mile markers 47 to 56.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4068 7838 4073 7835 4076 7778 4061 7779
4058 7782
TIME...MOT...LOC 1814Z 272DEG 31KT 4070 7830
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
Banghoff2 follow-up statements
344
WWUS51 KCTP 291828
SVSCTP
Severe Weather Statement
National Weather Service State College PA
228 PM EDT Thu Jul 29 2021
PAC013-291837-
/O.CAN.KCTP.SV.W.0188.000000T0000Z-210729T1900Z/
Blair PA-
228 PM EDT Thu Jul 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BLAIR COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 PM EDT for central
Pennsylvania.
LAT...LON 4064 7816 4064 7818 4067 7821 4072 7816
4072 7815 4074 7811 4076 7778 4061 7779
4058 7782
TIME...MOT...LOC 1827Z 281DEG 19KT 4069 7815
$$
PAC027-061-291900-
/O.CON.KCTP.SV.W.0188.000000T0000Z-210729T1900Z/
Huntingdon PA-Centre PA-
228 PM EDT Thu Jul 29 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHERN HUNTINGDON AND SOUTH CENTRAL CENTRE COUNTIES...
At 227 PM EDT, a severe thunderstorm was located over Warriors Mark,
moving east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Warriors Mark, Pine Grove Mills, Ramblewood, Franklinville, Whipple
Dam State Park, Mcalevys Fort and Rock Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 PM EDT for central
Pennsylvania.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4064 7816 4064 7818 4067 7821 4072 7816
4072 7815 4074 7811 4076 7778 4061 7779
4058 7782
TIME...MOT...LOC 1827Z 281DEG 19KT 4069 7815
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
Banghoff444
WWUS51 KCTP 291853
SVSCTP
Severe Weather Statement
National Weather Service State College PA
253 PM EDT Thu Jul 29 2021
PAC027-061-291902-
/O.EXP.KCTP.SV.W.0188.000000T0000Z-210729T1900Z/
Huntingdon PA-Centre PA-
253 PM EDT Thu Jul 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HUNTINGDON AND SOUTH
CENTRAL CENTRE COUNTIES WILL EXPIRE AT 300 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Tornado Watch remains in effect until 900 PM EDT for central
Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
State College PA.
LAT...LON 4064 7816 4064 7818 4067 7821 4072 7816
4072 7815 4074 7811 4076 7778 4061 7779
4058 7782
TIME...MOT...LOC 1852Z 272DEG 31KT 4068 7788
$$
BanghoffThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 8:28 AM EDT | Special Weather Statement | CTP | Warren | 47 min |
| Jul 29, 10:05 AM EDT | Special Weather Statement | CTP | Elk | 25 min |
| Jul 29, 10:47 AM EDT | Special Weather Statement | CTP | Warren | 43 min |
| Jul 29, 1:12 PM EDT | Special Weather Statement | CTP | Clearfield | 33 min |
| Jul 29, 1:50 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield | 25 min |
| Jul 29, 2:13 PM EDT | Tornado Warning | CTP | Somerset | 32 min |
| Jul 29, 2:22 PM EDT | Special Weather Statement | CTP | Centre | 23 min |
| Jul 29, 2:58 PM EDT | Special Weather Statement | CTP | Mifflin | 32 min |
| Jul 29, 3:50 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 25 min |
| Jul 29, 5:26 PM EDT | Special Weather Statement | CTP | Cambria | 34 min |
| Jul 29, 6:08 PM EDT | Special Weather Statement | CTP | Lancaster | 52 min |
| Jul 29, 6:24 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria | 12 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.