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

June 18, 2024 11:49 PM EDT (03:49 UTC) Change Location
Sunrise 5:40 AM   Sunset 8:43 PM
Moonrise 4:41 PM   Moonset 1:55 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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ANZ538 Patapsco River Including Baltimore Harbor- 1035 Pm Edt Tue Jun 18 2024

Rest of tonight - S winds 10 kt. Waves 1 ft.

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

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

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

Thu night - S winds 10 kt. Waves 1 ft.

Fri - S winds around 5 kt. Waves 1 ft or less.

Fri night - S winds 5 kt. Waves less than 1 ft.

Sat - S winds 5 to 10 kt. Waves 1 ft or less.

Sun - S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night.
winds and waves higher and visibilities lower in and near tstms.

ANZ500 1035 Pm Edt Tue Jun 18 2024

Synopsis for the tidal potomac and md portion of the chesapeake bay -
high pressure will remain anchored offshore through the week. Winds will remain light with a southerly component through the week.


7 Day Forecast for Marine Location Near Shippensburg, PA
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Area Discussion for - State College, PA
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FXUS61 KCTP 190319 AFDCTP

Area Forecast Discussion National Weather Service State College PA 1119 PM EDT Tue Jun 18 2024

SYNOPSIS
The center of a subtropical upper level high will remain over Pennsylvania through midweek. The upper level high will shift south late this week, allowing a weak cold front to approach and stall out over the region Friday and Saturday. A more significant cold front is likely to push through Sunday night or early Monday.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/
It will be another warm and muggy night under the upper level ridge. Patchy late night valley fog seems a good bet, especially where rain fall earlier today. Latest NAMNest and SREF prob charts target the central mountains for the best chance of fog.
See no reason to deviate from NBM min temps, which are in 65-70F range, or generally +5-15F above average.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/
Heat wave will continue through late week, as subtropical ridge remains parked over the Mid Atlantic region. Wednesday's model 850mb temps are very similar to today, so expect highs once again ranging from the mid 80s over the highest elevations of the Alleghenies, to the 90-95F range in most valley locations.
Lower pwats and somewhat lower afternoon dewpoints, especially over the Lower Susq Valley, suggest max heat indices will be in the 90s across the forecast area.

Mid level temps warm a bit Wednesday, likely limiting diurnally-driven PM convection to the NW Mtns. Weak shear indicates convection will be of the pulse variety with little risk of organized severe weather. However, high pwats and instability indicate locally heavy downpours are possible, with a chance of localized 2-3 inch amounts based on the 12Z HRRR.

Surface front sinks south across the US/CN border on Thursday and will encounter a very warm/moist environment. Favorable timing with peak heating suggests scattered storms are likely with a MRGL risk SWO over the northern tier of central PA.

Hot and humid conditions persist into Friday, with a chance of PM convection area-wide in the vicinity of the remnant cold front. Ensemble mean 850mb temps are actually a bit higher Friday and pwats also higher, possibly resulting in the highest heat indices of the week of around 100F in the Susq Valley.

LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/
Medium range guidance indicates PA will remain under a low amplitude upper level ridge with a strong surface high parked near Bermuda, resulting in a continuation of the heat and humidity. Ring of fire convection looks likely Saturday, especially along the northern tier of the state. Falling heights ahead of an upstream trough over the Grt Lks is likely to result in at least scattered PM convection Sunday.

Current 2m and 850mb temps plumes indicate some of the hottest weather of this stretch could occur next weekend, so may need to extend the heat advisory, which currently only lasts through Friday.

Most locations should see a round of showers/tsra Sunday PM into Monday AM associated with the passage of the shortwave trough and attendant cold front. Behind this feature, expect a return to fair and more seasonable conditions later Monday into Tuesday, as surface ridging and drier air works in from the Grt Lks.

AVIATION /03Z WEDNESDAY THROUGH SUNDAY/
VFR will continue for the entire region for the bulk of the overnight hours with just varying amounts of high clouds streaming east across PA. Included a tempo group for some MVFR low end VFR (4-6SM FG/HZ) during the hours leading up to dawn.

For the mid to late week period, hazy, hot and humid conds will be the rule across central PA, which will be under a huge dome of mid/upper level high pressure leading to a stagnant airmass with very light wind up through several KFT AGL.

A few spotty pulse tstorms can't be ruled out during the mid to late afternoon hours Wednesday (especially across the NW Mtns where slightly cooler mid level temps, boundaries left over from this evening's TSRA, terrain influences and the presence of a NW breeze off Lake Erie will be present). However, the areal coverage will be less than we experienced this tuesday afternoon/evening.

Brief reductions in CIGS/VSBYS and gusty winds are possible in any storms.

Outlook...

Thu-Sun...Predominantly VFR, with continued heat and iso TSRA.
Density altitude concerns possible.

CLIMATE
A period of warmer than average temperatures is expected across much of central Pennsylvania through the end of the week, with record high temperatures at multiple cities being challenged every day through Saturday.

Two records were either set or tied for sites today: * A record high temperature of 92 degrees was set at Altoona today that ties the old record of 92 degrees set back in 1994.
* A record high temperature of 90 degrees was set at Bradford today that breaks the old record of 87 degrees set back in 1993.

The record high temperatures for some sites across central PA that could be challenged 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

Highest Max Temperatures for Central Pennsylvania Observing sites for June (date of occurrence is in parentheses:

State College 96 in 1952 (26th) and 1933 (29th)
Harrisburg 100 in 1966 (27th), 1952 (26th), and 1934 (29th)
Williamsport 104 in 1925 (5th)
Altoona 97 in 1971 (28th) and 1953 (21st)
Bradford 93 in 2022 (22nd)

Longest run of consecutive days with max temp >=90 in June:

State College 6 (24-29th 1966)
Harrisburg 10* (19-28th 1943)
Williamsport 9 (18-26th 1923)
Altoona 8 (13-20th 1994)
Bradford 0 (has not occurred since POR started at site in 1957)

*Harrisburg had a run of 11 days with temperatures greater than 90 degrees that started on 26th and ended on July 6th in 1901.

CTP WATCHES/WARNINGS/ADVISORIES
Heat Advisory until 8 PM EDT Friday 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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Wind History for Baltimore, MD
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KHGR26 sm56 minSSE 0910 smClear82°F68°F62%30.26
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Wind History graph: HGR
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Tide / Current for Middle Branch, Baltimore Harbor, Maryland
   
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Middle Branch
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Tue -- 02:52 AM EDT     Moonset
Tue -- 05:18 AM EDT     1.64 feet High Tide
Tue -- 05:39 AM EDT     Sunrise
Tue -- 12:44 PM EDT     0.64 feet Low Tide
Tue -- 04:55 PM EDT     0.94 feet High Tide
Tue -- 05:35 PM EDT     Moonrise
Tue -- 08:35 PM EDT     Sunset
Tue -- 10:47 PM EDT     0.30 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Middle Branch, Baltimore Harbor, Maryland, Tide feet
12
am
0.5
1
am
0.8
2
am
1.1
3
am
1.3
4
am
1.5
5
am
1.6
6
am
1.6
7
am
1.5
8
am
1.3
9
am
1.1
10
am
0.9
11
am
0.8
12
pm
0.7
1
pm
0.6
2
pm
0.7
3
pm
0.8
4
pm
0.9
5
pm
0.9
6
pm
0.9
7
pm
0.8
8
pm
0.6
9
pm
0.4
10
pm
0.3
11
pm
0.3


Tide / Current for Fells Point, Baltimore Harbor, Maryland
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Fells Point
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Tue -- 02:52 AM EDT     Moonset
Tue -- 05:02 AM EDT     1.97 feet High Tide
Tue -- 05:39 AM EDT     Sunrise
Tue -- 12:32 PM EDT     0.75 feet Low Tide
Tue -- 04:38 PM EDT     1.13 feet High Tide
Tue -- 05:35 PM EDT     Moonrise
Tue -- 08:35 PM EDT     Sunset
Tue -- 10:35 PM EDT     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Fells Point, Baltimore Harbor, Maryland, Tide feet
12
am
0.7
1
am
1
2
am
1.3
3
am
1.7
4
am
1.9
5
am
2
6
am
1.9
7
am
1.8
8
am
1.6
9
am
1.3
10
am
1.1
11
am
0.9
12
pm
0.8
1
pm
0.8
2
pm
0.9
3
pm
1
4
pm
1.1
5
pm
1.1
6
pm
1
7
pm
0.9
8
pm
0.7
9
pm
0.5
10
pm
0.4
11
pm
0.4


Weather Map
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GEOS Local Image of east us   
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State College, PA,




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