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Central PA Summer 2025


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55 minutes ago, WmsptWx said:

8.7 magnitude earthquake off Kamchatka peninsula in Russia. Strongest earthquake on Earth since 2011 Japan quake. 

 

Tsunami is confirmed. 

 

Edit: 8.8 magnitude earthquake. 3-12 feet waves possible in Hawai'i. Three to five feet possible in US West Coast. 

Yeah pretty wild. Hopefully the advanced warning will allow everyone out there to get safely inland. 

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2 hours ago, Mount Joy Snowman said:

So it appears the Hawaii warnings were downgraded and minimal damage reported. Good news. Tomorrow’s dew points look like they could be the worst of the week, with relief not arriving until the overnight hours. We’ll see what tricks the storms pull. 

This sounds sorta ominous:
 

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
*Elevated risk of excessive rain with some higher end flooding
 impacts possible across east-central/southeastern PA Thursday

SFC-850mb low pressure is progged to move along the southward
sinking frontal zone which continues to trend slower with its
equatorward progression. There also appears to be some enhanced
large scale lift to support +RA in the form of height falls and
right entrance region (RER) upper jet dynamics. High/efficient
rain rates within low topped warm rain convection combined with
ample deep layer moisture /1.5-2+" pwats/ will continue to
support an increasingly elevated excessive rain/flash flood risk
particularly across the southeastern portions of the area.

Some model guidance is also showing an inverted trough axis on
the NW side of the low track the could be a fulcrum point for
heavy rain. WPC (along with neighboring offices LWX/PHI/BGM)
discussed the possibility of upgrading the D2 ERO to a moderate
risk for eastern PA with this cycle, but given lingering QPF
detail uncertainty we decided to collectively stick with an
"enhanced" level 2 (out of 4) risk area for now. We will
continue to highlight the heavy/excessive rain and potential
significant flood threat in the HWO and IDSS partner briefings.
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Today should be our last 90-degree day for at least the next 10 or so days. We will see rain chances ramping up tomorrow afternoon into the evening with a cold front. We could see at least an inch of rain in many spots across the area with showers lasting until Friday. On Friday night we see some autumn like weather arrive for the weekend. Highs mostly in the 70's with lows in the 50's. Below normal temperatures look to continue through much of next week.

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1 hour ago, Itstrainingtime said:

This sounds sorta ominous:
 

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
*Elevated risk of excessive rain with some higher end flooding
 impacts possible across east-central/southeastern PA Thursday

SFC-850mb low pressure is progged to move along the southward
sinking frontal zone which continues to trend slower with its
equatorward progression. There also appears to be some enhanced
large scale lift to support +RA in the form of height falls and
right entrance region (RER) upper jet dynamics. High/efficient
rain rates within low topped warm rain convection combined with
ample deep layer moisture /1.5-2+" pwats/ will continue to
support an increasingly elevated excessive rain/flash flood risk
particularly across the southeastern portions of the area.

Some model guidance is also showing an inverted trough axis on
the NW side of the low track the could be a fulcrum point for
heavy rain. WPC (along with neighboring offices LWX/PHI/BGM)
discussed the possibility of upgrading the D2 ERO to a moderate
risk for eastern PA with this cycle, but given lingering QPF
detail uncertainty we decided to collectively stick with an
"enhanced" level 2 (out of 4) risk area for now. We will
continue to highlight the heavy/excessive rain and potential
significant flood threat in the HWO and IDSS partner briefings.

It certainly does.  There could definitely be some select spots that see torrential slow-moving rains tomorrow.  Hope it's not us. 

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Wish I'd have brought the video cameras out today. The atmosphere's a boilin' this afternoon. Would have made for an interesting video. 
 
Everything is boiling outside. I forced myself to take trash out and this is the worst day all summer

Sent from my SM-G970U1 using Tapatalk

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219 PM EDT Wed Jul 30 2025

PAZ028-036-041-042-046-049>053-056>059-063-310630-
/O.NEW.KCTP.FA.A.0023.250731T1800Z-250801T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Juniata-Franklin-Northern Lycoming-Sullivan-Southern Lycoming-
Union-Snyder-Montour-Northumberland-Columbia-Perry-Dauphin-
Schuylkill-Lebanon-Cumberland-
Including the cities of Carlisle, Lebanon, Sunbury, Harrisburg,
Bloomsburg, Newport, Williamsport, Chambersburg, Trout Run,
Pottsville, Laporte, Selinsgrove, Shamokin, Danville, Hershey,
Mifflintown, Lewisburg, and Berwick
219 PM EDT Wed Jul 30 2025

...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...A portion of central Pennsylvania, including the following
  areas, Columbia, Cumberland, Dauphin, Franklin, Juniata, Lebanon,
  Montour, Northern Lycoming, Northumberland, Perry, Schuylkill,
  Snyder, Southern Lycoming, Sullivan and Union.

* WHEN...From Thursday afternoon through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
  - Thunderstorms capable of producing very heavy rainfall rates
    in excess of 2 inches per hour may result in flash flooding.
    Rainfall amounts of 2 to 3 inches are possible.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued
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21 minutes ago, Jns2183 said:

Everything is boiling outside. I forced myself to take trash out and this is the worst day all summer

Sent from my SM-G970U1 using Tapatalk
 

Not a single drop of rain fell in Tamaqua...yet, but said rain and cloudcover was close enough to cool us down to our current 87 degrees.

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Just had 2.71 rain from a thunderstorm that sat and back builded for over and hour. Rain rate was 3.57 at times during the downpour.. makes me worry what could happen tomorrow if we get heavy rain.
You are destined to triple my yearly rain total

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  • Haha 1
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URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service State College PA
219 PM EDT Wed Jul 30 2025

Adams-York-Lancaster- Including the cities of York, Lancaster, and Gettysburg 219 PM EDT Wed Jul 30 2025

...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...A portion of central Pennsylvania, including the following counties, Adams, Lancaster and York.

* WHEN...From Thursday afternoon through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Thunderstorms capable of producing very heavy rainfall rates in excess of 2 inches per hour may result in flash flooding. Rainfall amounts of 2 to 3 inches are expected with localized amounts of up to 5 inches possible.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

&&


.

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