Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 39, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 14, 2021, 2:33 PM EDT for Clinton County, Lycoming County, Union County, Pennsylvania. It was in force for 57 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
- Jun 14, 2021, 2:33 PM EDT (18:33 UTC)
- Expired
- Jun 14, 2021, 3:30 PM EDT
- In force
- 57 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clinton County, PA, Lycoming County, PA, Union County, PA
The radar
The State College radar (KCCX), 82 km from the middle of the area, began a volume at 18:35 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 |
|---|---|---|---|
| Jun 14, 2:35 PM EDT | TSTM WND DMG | 1 Ene Mcelhattan, PA | SEVERAL REPORTS OF TREES DOWN BETWEEN LOCK HAVEN AND AVIS. |
| Jun 14, 2:36 PM EDT | TSTM WND DMG | 2 S Avis, PA | TREE DOWN BLOCKING BOTH LANES OF PINE-LOGANTON ROAD IN WAYNE TOWSNHIP. |
| Jun 14, 2:53 PM EDT | TSTM WND DMG | 1 E Collomsville, PA | SPORADIC TREES DOWN ACROSS NIPPENOSE VALLEY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 14, 11:46 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.6 hours before the alert went out and 242 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
234
WUUS51 KCTP 141833
SVRCTP
PAC035-081-119-141930-
/O.NEW.KCTP.SV.W.0039.210614T1833Z-210614T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
233 PM EDT Mon Jun 14 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Southwestern Lycoming County in north central Pennsylvania...
Northeastern Union County in central Pennsylvania...
Eastern Clinton County in north central Pennsylvania...
* Until 330 PM EDT.
* At 233 PM EDT, severe thunderstorms were located along a line
extending from near Cammal to near McElhattan to Mackeyville,
moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Williamsport, Lock Haven, Lewisburg, Montoursville, Jersey Shore,
Carroll, Muncy, Mill Hall, Montgomery, Linntown, Avis, Dunnstown,
Flemington, Duboistown, Castanea, New Columbia, McElhattan,
Allenwood, Elimsport and Waterville.
For those driving on Interstate 80, this includes areas between the
Lamar and Milton-Williamsport exits, specifically from mile markers
177 to 210.
This includes Interstate 180 near mile marker 10...and from mile
markers 15 to 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4131 7683 4118 7678 4116 7687 4115 7689
4110 7689 4107 7686 4098 7688 4095 7691
4100 7719 4104 7715 4101 7727 4105 7752
4120 7746 4138 7757
TIME...MOT...LOC 1833Z 282DEG 32KT 4135 7747 4119 7738 4107 7744
HAIL...<.75IN
WIND...60MPH
$$
Colbert1 follow-up statement
330
WWUS51 KCTP 141903
SVSCTP
Severe Weather Statement
National Weather Service State College PA
303 PM EDT Mon Jun 14 2021
PAC035-141911-
/O.CAN.KCTP.SV.W.0039.000000T0000Z-210614T1930Z/
Clinton PA-
303 PM EDT Mon Jun 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CLINTON COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 600 PM EDT for
north central Pennsylvania. A Severe Thunderstorm Watch also remains
in effect until 900 PM EDT for central and north central
Pennsylvania.
LAT...LON 4131 7683 4118 7678 4115 7689 4111 7689
4107 7686 4098 7688 4095 7691 4100 7719
4104 7714 4107 7714 4107 7716 4112 7722
4130 7725 4135 7724
TIME...MOT...LOC 1901Z 282DEG 32KT 4130 7714 4114 7706 4102 7712
$$
PAC081-119-141930-
/O.CON.KCTP.SV.W.0039.000000T0000Z-210614T1930Z/
Lycoming PA-Union PA-
303 PM EDT Mon Jun 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTH CENTRAL LYCOMING AND NORTHEASTERN UNION COUNTIES...
At 301 PM EDT, severe thunderstorms were located along a line
extending from near Cogan Station to Elimsport to near Sand Bridge
State Park, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Williamsport, Lewisburg, Montoursville, Muncy, Watsontown,
Montgomery, Linntown, Duboistown, New Columbia, Allenwood, Elimsport,
Cogan Station, Spruce Run Reservoir, Collomsville, Sand Bridge State
Park, Forest Hill, South Williamsport, Garden View, West Milton and
Oval.
For those driving on Interstate 80, this includes areas between the
Jersey Shore and Milton-Williamsport exits, specifically from mile
markers 195 to 210.
This includes Interstate 180 near mile marker 10...and from mile
markers 15 to 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4131 7683 4118 7678 4115 7689 4111 7689
4107 7686 4098 7688 4095 7691 4100 7719
4104 7714 4107 7714 4107 7716 4112 7722
4130 7725 4135 7724
TIME...MOT...LOC 1901Z 282DEG 32KT 4130 7714 4114 7706 4102 7712
HAIL...<.75IN
WIND...60MPH
$$
JCGThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 8:10 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 35 min |
| Jun 13, 8:15 PM EDT | Special Weather Statement | CTP | Centre | 45 min |
| Jun 13, 8:30 PM EDT | Special Weather Statement | CTP | Huntingdon | 30 min |
| Jun 13, 8:41 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 64 min |
| Jun 13, 9:02 PM EDT | Special Weather Statement | CTP | Huntingdon | 43 min |
| Jun 13, 9:08 PM EDT | Areal Flood Advisory | CTP | McKean | 67 min |
| Jun 13, 9:38 PM EDT | Areal Flood Advisory | CTP | Centre | 82 min |
| Jun 13, 9:47 PM EDT | Areal Flood Advisory | CTP | Potter | 73 min |
| Jun 13, 10:58 PM EDT | Areal Flood Advisory | CTP | Centre | 2 hr |
| Jun 13, 11:04 PM EDT | Areal Flood Advisory | CTP | Huntingdon, Mifflin | 116 min |
| Jun 13, 11:04 PM EDT | Special Weather Statement | CTP | Juniata | 56 min |
| Jun 13, 11:56 PM EDT | Special Weather Statement | CTP | Perry | 34 min |
| Jun 14, 12:29 AM EDT | Special Weather Statement | CTP | Cumberland | 31 min |
| Jun 14, 12:37 AM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Perry | 38 min |
| Jun 14, 1:12 AM EDT | Severe Thunderstorm Warning | CTP | Cumberland, York | 48 min |
| Jun 14, 11:36 AM EDT | Special Weather Statement | CTP | Warren | 39 min |
| Jun 14, 12:02 PM EDT | Special Weather Statement | CTP | Elk | 58 min |
| Jun 14, 12:47 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 73 min |
| Jun 14, 1:31 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 74 min |
| Jun 14, 1:53 PM EDT | Special Weather Statement | CTP | Centre | 37 min |
| Jun 14, 3:18 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Union | 57 min |
| Jun 14, 4:04 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria | 41 min |
| Jun 14, 4:10 PM EDT | Special Weather Statement | CTP | Centre | 20 min |
| Jun 14, 4:10 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Schuylkill | 50 min |
| Jun 14, 4:16 PM EDT | Special Weather Statement | CTP | Somerset | 14 min |
| Jun 14, 4:24 PM EDT | Special Weather Statement | CTP | Blair | 21 min |
| Jun 14, 4:43 PM EDT | Special Weather Statement | CTP | Blair | 47 min |
| Jun 14, 4:44 PM EDT | Special Weather Statement | CTP | Somerset | 16 min |
| Jun 14, 5:04 PM EDT | Special Weather Statement | CTP | Somerset | 26 min |
| Jun 14, 5:49 PM EDT | Special Weather Statement | CTP | Somerset | 26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.