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Marine Weather and Tides Harrisburg, PA Version 3.4

NOTICE 1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

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Sunrise 6:46AM

Sunset 5:55PM

Wednesday February 24, 2021 12:21 PM EST (17:21 UTC)

Moonrise 2:55PM

Moonset 5:23AM

Illumination 95%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Harrisburg, PA

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Area Discussion for - State College, PA

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FXUS61 KCTP 241556 AFDCTP

Area Forecast Discussion National Weather Service State College PA 1056 AM EST Wed Feb 24 2021

SYNOPSIS. Spring fever in the air today with the warmest temperatures of 2021 forecast across central PA. Brief rain showers are expected later this afternoon/evening before conditions dry out tonight through Friday. A period of light mixed precipitation is likely Saturday morning. Temperatures should average near to above normal through the end of the month.

NEAR TERM /THROUGH TONIGHT/. Celebratory feelings abound as this afternoon will feature the warmest temps of 2021 thus far, and lots of sunshine through the early to mid afternoon. Transient sfc ridge axis slides off the coast by mid afternoon. Gradient SSW flow is already increasing as a result with 15 to 20 kt gusts west of the Alleghenies as per latest METARs. SFc low pressure tracks to the Saint Lawrence Valley by 00Z Thu, with a moisture challenged cold front trailing the sfc low to the south. Increasing clouds and POPs for the mid to late afternoon hours as the front approaches and crosses, with highest POPs and QPF focused over the NW Alleghenies into the Laurel Highlands where upslope flow is maximized at nose of 50kt west- southwest LLJ. Rain showers should have a hard time reaching southeast of I-81 due to the marginal moisture and some downslope component.

Afternoon maxes spike 5-10F warmer than yesterday and 10-15 degrees above average for late Feb. Spring fever will be in the air with many locations seeing their warmest temperatures of 2021. Although offset a bit by increasing clouds and snow cover, the strong WAA pattern combined with gusty prefrontal south- southwest flow is a signal to exceed model maxT guidance. Forecast is above NBM but below the unrealistic HRRR. The ridge/valley region to the south of State College toward the MD line should make a run at 60F!

Max wind gusts are not as high as yesterday and should peak in the 25 to 35 mph range this afternoon.

Conditions dry out with decreasing clouds over most of the area tonight. Colder air and post-frontal WNW flow should keep low clouds and some snow showers/flurries over the western high terrain early tonight before fading into Thursday morning. Low temps around 25F in the NW to 35F in the southeast are 5-10F above climo averages.

SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/. Temps trend colder on Thursday back to near climo. HP migrating from the Ohio Valley over central PA will provide fair and dry wx through Friday.

WAA pattern becomes established Friday night with increasing clouds. Given typically faster progression of WAA precip and broad 24/00Z model support, we were keen to ramp up POPs into low likely range (55-60%) late Friday night into early Saturday morning across much of south central PA. There are still some details to resolve heading into Saturday regarding timing which play a role in determining ptypes.

LONG TERM /SATURDAY THROUGH TUESDAY/. 430AM Update: In coordination with neighboring offices, we increased POPs into the low likely range (55-60%) for the entire CWA early Saturday as probs for light precip trend higher. The main question or uncertainty has to to with thermal profiles and resulting p-types with the potential for light snow and freezing rain.

Previous Discussion Issued: 1127 PM EST Tue Feb 23 2021

Surface ridging building east off the Atlantic Coast looks to usher in some marine moisture, along with moisture/warm air advection increasing from the southwest as winds aloft back southwesterly Friday into Saturday. Will have to monitor the threat for some potential freezing rain given the antecedent cold airmass and incoming warm nose aloft. Given uncertainty at this point in the depth of the warm/cold layers, have maintained a rain/snow mix.

The rain ends later on Saturday, but more rain will be possible late Sunday into Monday, ahead of what could materialize as a more potent frontal system. The rain could mix with snow, as colder air works southward later Sunday into Monday. Models show a lot of spread at this time range, but cooler air looks to move into the Commonwealth for early week.

AVIATION /16Z WEDNESDAY THROUGH SUNDAY/. VFR conditions expected into this afternoon with just some high level clouds overhead. A cold front will move through this afternoon and early evening creating sct/nmrs SHRA, especially from UNV, AOO, IPT on west which could result in some brief restrictions. LLWS is likely to develop again this evening into Wednesday night. The air turns colder Wed night, and sct/isold SHSN will be nearby BFD and JST.

Thurs . MVFR cigs for most terminals. SHSN/IFR poss BFD/JST.

Fri . No sig wx.

Saturday . Restrictions possible in numerous SHRA.

Sunday . Mainly dry to start, then showers possible.

CTP WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . Steinbugl NEAR TERM . DeVoir/Steinbugl SHORT TERM . Steinbugl LONG TERM . Guseman/Steinbugl/Martin AVIATION . DeVoir/Dangelo

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
BLTM2 - 8574680 - Baltimore, MD	72 mi	51 min	S 8 G 9.9	50°F	38°F		1017.6 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD	76 mi	51 min	SSE 16 G 18	49°F			1017.9 hPa
CHCM2 - 8573927 - Chesapeake City, MD	77 mi	51 min	SSW 7 G 9.9	52°F	36°F		1018.6 hPa

Wind History for Baltimore, MD

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NW4 G15

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Harrisburg, Capital City Airport, PA	4 mi	25 min	Var 6 G 14	10.00 mi	Fair	53°F	26°F	35%	1016.1 hPa
Harrisburg, Harrisburg International Airport, PA	8 mi	25 min	SE 8	10.00 mi	Mostly Cloudy	49°F	28°F	44%	1015.9 hPa
Muir Army Air Field / Indiantown, PA	20 mi	25 min	S 4	10.00 mi	A Few Clouds	46°F	27°F	47%	1016.4 hPa

Link to 5 minute data for KCXY

Wind History from CXY (wind in knots)

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Tide / Current Tables for Port Deposit, Susquehanna River, Maryland

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Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland

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Weather Map

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GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East

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Ground Weather Radar Station

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