Harrisburg, PA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Harrisburg, PA

June 17, 2024 9:22 AM EDT (13:22 UTC) Change Location
Sunrise 5:35 AM   Sunset 8:41 PM
Moonrise 3:34 PM   Moonset 1:28 AM 
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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.

Marine Forecasts
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ANZ530 Chesapeake Bay North Of Pooles Island- 825 Am Edt Mon Jun 17 2024

.small craft advisory in effect through this evening - .

Today - S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.

Tonight - S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

Tue - S winds 5 to 10 kt. Waves 1 ft.

Tue night - S winds 5 to 10 kt. Waves 1 ft.

Wed - S winds 5 kt. Waves less than 1 ft.

Wed night - S winds 5 to 10 kt. Waves 1 ft.

Thu - SW winds 5 to 10 kt. Waves 1 ft.

Fri - SW winds 5 kt. Waves less than 1 ft.

ANZ500 825 Am Edt Mon Jun 17 2024

Synopsis for the tidal potomac and md portion of the chesapeake bay -
high pressure will remain anchored offshore through the week. A warm front will lift northeastward away from the mid-atlantic today. Small craft advisories may be needed for portions of the waters each afternoon and evening Tuesday through Friday.


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 171025 AFDCTP

Area Forecast Discussion National Weather Service State College PA 625 AM EDT Mon Jun 17 2024

SYNOPSIS
*Long duration and potentially dangerous heat wave this week *High temperatures 90+ degrees into next weekend

NEAR TERM /THROUGH TONIGHT/
A long duration heat wave will begin later today, as an anomalous 500mb subtropical ridge builds over the region. Warm mid level temps should largely suppress convection, but can't rule out (10-20% chance) an isolated shower or t-storm this afternoon along the spine of the Alleghenies, where the elevated heat source could aid in breaking the cap. Slightly higher POPs near 30% have been placed along the NY border late today. This is associated with an approaching MCV over SE Michigan.
The latest HRRR indicates convection will wane later this morning as it tracks along the north shore of Lk Erie. However, regeneration is possible this afternoon, as the mid level vort max tracks across upstate NY.

Any convection should fade with loss of heating after sunset.
Mostly clear skies, light wind and surging low level moisture appears likely to result in patchy late night valley fog across the Central Mtns based on latest NAMNest and SREF prob charts. See no reason to deviate from NBM min temps, which range from 65-70F.

SHORT TERM /TUESDAY THROUGH WEDNESDAY/
The heat and humidity are progged to ratchet up slightly Tuesday and Wednesday, as the center of the subtropical high lifts north over PA. Current guidance suggests heat indices will reach 95-100F in valley locations across Central PA Tuesday afternoon.
Upon coordination with neighboring offices, have issued a Heat Advisory Tuesday afternoon.

Scattered, pulse-type convection remains possible under the heat dome Tuesday afternoon, primarily along the spine of the Alleghenies. The threat for PM convection looks even more limited on Wednesday as temps continue to warm aloft. The heat wave rolls on through midweek with highs 90-95 forecast with max HX approaching 100F. Additional heat headlines may be needed.

LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/
Medium range guidance continues to show that a prolonged heat wave will occur throughout the extended forecast period.
A 595-600 dm 500 mb ridge will be situated over Central Pennsylvania and temperatures will easily reach the 90s across most of the region each day. Temperatures will ramp up each day giving us our hottest days for the second half of the week. Heat indices will be in the upper 90s and low 100s, with the Thursday-Friday timeframe. Some models indicate the potential for a few showers or thunderstorms each afternoon across the northern tier, but coverage should be very limited and elevation driven.

Ensembles show the ridge beginning to flatten out a little by Saturday which would allow for a slightly higher chance of showers or storms, particularly across the northern half of the area.

AVIATION /12Z MONDAY THROUGH FRIDAY/
Main change for the 12Z TAF package is to add a tempo group for a very brief period of fog for around 12Z Tuesday. As the airmass becomes a bit more humid, very light wind fields could result in some fog.

Otherwise looking at VFR conditions today into this evening, as high pressure remains over the area.

Winds were gusty at times since Sunday afternoon, but will weaken a bit more here this morning, as radar VAD winds have been on the decrease since Midnight.

The strong June sun and mixing may kick winds up at times later this afternoon.

Highest chance of any showers or storms today will likely be near the lower Great Lakes.

Not much change to conditions the next several days. If the dewpoints come up later in the week, then there could be some patchy fog.

Outlook...

Tue-Fri...Predominantly VFR, with building heat. Density altitude concerns possible.

CLIMATE
A period of much warmer than average temperatures is expected across much of central Pennsylvania next week, with record high temperatures being challenged. The record high temperatures for some sites across central PA are outlined below:

Jun 18 Jun 19 Jun 20 Jun 21

Harrisburg 97/1957 98/1994 98/1931 98/1923 Williamsport 97/2018 96/1929 101/1923 97/1933 State College 94/1923 94/1931 94/1953 94/1988

CTP WATCHES/WARNINGS/ADVISORIES
Heat Advisory from noon to 8 PM EDT Tuesday for PAZ004>006- 010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
BLTM2 - 8574680 - Baltimore, MD 72 mi53 minSSW 1G7 76°F 76°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 76 mi53 minSSW 8.9G12 74°F
CHCM2 - 8573927 - Chesapeake City, MD 77 mi53 minSW 1.9G4.1 74°F 78°F30.22


Wind History for Baltimore, MD
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KCXY CAPITAL CITY,PA 5 sm26 minSW 0710 smPartly Cloudy75°F59°F57%30.19
KMDT HARRISBURG INTL,PA 9 sm26 mincalm10 smPartly Cloudy77°F61°F57%30.18
KMUI MUIR AAF (FORT INDIANTOWN GAP),PA 20 sm27 minSSW 0410 smPartly Cloudy75°F61°F61%30.18
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Wind History graph: CXY
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Tide / Current for Port Deposit, Susquehanna River, Maryland
   
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Port Deposit
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Mon -- 02:04 AM EDT     0.72 feet Low Tide
Mon -- 02:25 AM EDT     Moonset
Mon -- 05:36 AM EDT     Sunrise
Mon -- 08:13 AM EDT     3.27 feet High Tide
Mon -- 04:15 PM EDT     1.45 feet Low Tide
Mon -- 04:28 PM EDT     Moonrise
Mon -- 07:41 PM EDT     2.11 feet High Tide
Mon -- 08:34 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Port Deposit, Susquehanna River, Maryland, Tide feet
12
am
1
1
am
0.8
2
am
0.7
3
am
0.8
4
am
1.3
5
am
1.9
6
am
2.6
7
am
3
8
am
3.3
9
am
3.2
10
am
3
11
am
2.8
12
pm
2.4
1
pm
2.1
2
pm
1.8
3
pm
1.6
4
pm
1.5
5
pm
1.5
6
pm
1.8
7
pm
2
8
pm
2.1
9
pm
2
10
pm
1.8
11
pm
1.4


Tide / Current for Havre de Grace, Susquehanna River, Maryland
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Havre de Grace
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Mon -- 12:35 AM EDT     0.57 feet Low Tide
Mon -- 02:25 AM EDT     Moonset
Mon -- 05:36 AM EDT     Sunrise
Mon -- 07:01 AM EDT     2.40 feet High Tide
Mon -- 02:12 PM EDT     0.70 feet Low Tide
Mon -- 04:28 PM EDT     Moonrise
Mon -- 07:36 PM EDT     1.80 feet High Tide
Mon -- 08:34 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Havre de Grace, Susquehanna River, Maryland, Tide feet
12
am
0.6
1
am
0.6
2
am
0.8
3
am
1.1
4
am
1.6
5
am
2
6
am
2.3
7
am
2.4
8
am
2.3
9
am
2.1
10
am
1.8
11
am
1.4
12
pm
1.1
1
pm
0.8
2
pm
0.7
3
pm
0.8
4
pm
1
5
pm
1.3
6
pm
1.6
7
pm
1.8
8
pm
1.8
9
pm
1.6
10
pm
1.4
11
pm
1


Weather Map
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GEOS Local Image of Mid-Atlantic   
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State College, PA,




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