Portsmouth, VA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Portsmouth, VA

May 9, 2024 3:30 PM EDT (19:30 UTC) Change Location
Sunrise 6:00 AM   Sunset 8:03 PM
Moonrise 5:48 AM   Moonset 9:18 PM 
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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.

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Marine Forecasts
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ANZ632 Chesapeake Bay From New Point Comfort To Little Creek Va- 1259 Pm Edt Thu May 9 2024

This afternoon - SW winds 5 to 10 kt. Waves 1 foot. A slight chance of showers and tstms early, then a chance of showers and tstms late.

Tonight - E winds 10 kt, becoming nw late. Waves around 2 ft in the evening, then 1 foot or less. Showers likely with a chance of tstms early in the evening, then a chance of showers and tstms in the late evening and early morning.

Fri - NW winds 10 kt, becoming ne in the afternoon. Waves around 2 ft. Showers likely with a chance of tstms in the afternoon.

Fri night - NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of tstms in the evening. Showers likely.

Sat - N winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt in the afternoon. Waves around 2 ft.

Sat night - SE winds 10 kt, becoming S after midnight. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers.

Sun - W winds 10 kt, becoming nw in the afternoon. Waves around 2 ft.

Sun night - N winds 5 to 10 kt. Waves 1 foot.

Mon - E winds 5 to 10 kt, becoming se in the afternoon. Waves 1 foot, then around 2 ft in the afternoon.

Mon night - S winds 10 to 15 kt. Waves around 2 ft.
winds and waves higher in and near tstms.

ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 1259 Pm Edt Thu May 9 2024

This afternoon - E winds 5 to 10 kt. Seas 2 to 3 ft, occasionally to 4 ft. Wave detail: se 2 ft at 6 seconds and E 2 ft at 10 seconds. A slight chance of showers early, then a chance of showers with a slight chance of tstms late.

Tonight - E winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt late. Seas 3 to 4 ft, occasionally to 5 ft. Wave detail: E 3 ft at 5 seconds and E 3 ft at 10 seconds. Showers likely, mainly in the evening.

Fri - NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft, occasionally to 6 ft. Wave detail: ne 4 ft at 7 seconds and S 2 ft at 7 seconds. A chance of showers in the afternoon.

Fri night - NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave detail: ne 6 ft at 7 seconds and S 2 ft at 7 seconds. Showers likely.

Sat - N winds 15 to 20 kt, becoming ne 10 to 15 kt in the afternoon. Seas 5 to 6 ft, occasionally to 8 ft. Wave detail: ne 6 ft at 7 seconds and S 1 foot at 7 seconds.

Sat night - E winds 10 kt, becoming S after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave detail: se 4 ft at 7 seconds. A chance of showers.

Sun - SW winds 5 to 10 kt, becoming nw in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. A chance of showers in the morning.

Sun night - N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.

Mon - W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft.

Mon night - S winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft.
winds and seas higher in and near tstms.


7 Day Forecast for Marine Location Near Portsmouth, VA
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Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 091806 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 206 PM EDT Thu May 9 2024

SYNOPSIS
A cold front will slowly push through the region later today through tonight, bringing showers and thunderstorms to the region. An upper level trough will bring another round of showers and storms later Friday into Friday night. A chance for showers continues across mainly northern areas over the weekend.
Dry and warmer weather to start next week.

NEAR TERM /THROUGH TONIGHT/
As of 1000 AM EDT Thursday...

-Key Message:

-SPC has reduced the severe threat from slight (level 2 out of 5) to marginal (level 1 out of 5) for this afternoon. The threat is particularly low across the far northeast.

Complex wx pattern expected today. Remnant debris clouds and light rain showers are spreading across the FA late this morning, in association with a remnant OH River Valley MCS from last night. However, the coverage of rain is spotty at best.
Have lowered PoPs through this morning and early this aftn as sfc- based instability is quite limited and CAMs show no shower/storm development in this timeframe.

The focus for any strong to severe storms later this aftn and evening will be along a sfc boundary draped roughly from the NW Piedmont into the Northern Neck and Eastern Shore. Overall, the threat is very conditional and contingent on airmass recovery in the wake of the aforementioned cloud cover. The biggest change to the fcst has been the reduction in the severe threat from SPC from slight (2 out of 5) to marginal (1 out of 5). N of the boundary, there will be virtually no sfc- based instability (low- level winds will be easterly/onshore), with svr wx very unlikely. Along and S of the boundary, instability may increase to adequate levels (500-1000 J/kg of MLCAPE). Given ~30 kt of bulk shear over the area, the parameter space could support some strong to severe storms. The sfc boundary may provide some localized enhanced directional shear for an isolated spin- up tornado. The latest HRRR runs continue to shower elevated 0-1 and 0-3km SRH (~200 m2/s2) by from about 20Z-00Z across the I-64 corridor (give or take ~30 miles). Otherwise, main threat would be damaging winds and perhaps some isolated larger hail if any supercells develop. High today will be in the mid/upper 80s in NE NC, but only in the 70s over the N (with readings falling into the 60s near the Atlantic coast of the ern shore).

PoPs have been lowered significantly for most of today. PoPs ramp up in close alignment with the latest hi-res model runs favoring the highest coverage of storms (just rain N of the boundary) roughly along and just NE of the I-64 corridor. PoPs shift off the NE overnight and diminish (except across the far NE) after 06z. Lows mid/upper 50s N to mid 60s S.

SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/
As of 350 AM EDT Thursday...

-Key Message:

- Another round of showers/storms Fri aftn/evening. Widespread severe is not expected, but gusty winds and hail will be possible.

Friday starts off mainly dry (with some lingering low clouds and light rain possible over the MD eastern shore). Scattered showers are expected to redevelop as the upper trough dives SE and swings through. The associated shortwave moves across VA and the Carolinas and has trended stronger so have raised PoPs by late aftn/evening to likely for most areas. With steep mid level lapse rates expected w/ the cold pool aloft, at least scattered tstms are expected for most of the area. SPC does not have the area outlooked for any SVR, but would not be surprised to see some hail and gusty winds given the steep mid level lapse rates Fri evening. Highs on Fri will show a large range, only in the upper 50s to lower 60s MD ern shore to near 80F interior NE NC. Drying out later Fri night and cooler with lows mid/upper 40s W to the lower 50s E.

LONG TERM /SATURDAY THROUGH WEDNESDAY/
As of 400 AM EDT Thursday...

-Key Message:

-Remaining unsettled (especially north) late Sat through Sunday, dry Mon, with rain chances returning Tue-Wed.

The weekend continues to look a bit unsettled, especially across the N/NE portion of the CWA as yet another shortwave drops SE from the wrn Great Lakes, and pushes across the mid Atlantic late Sat through Sunday. This pattern favors increasing clouds Sat afternoon, with low chance PoPs pushing into the NW by late afternoon, spreading through the region Sat night/early Sunday.
Cool Sat with highs in the low-mid 60s NE to around 70F over the SW. The airmass will be fairly dry so not expecting much QPF with this system (generally 0.10" or less with a little more possible across the NE). Will have PoPs to ~40% over the N late Sat/Sat night into early Sunday, with PoPs only ~15-20% in NC.
The models still differ with respect to the strength of the upper trough on Sunday, so will maintain PoPs up to 25-30% across the NE, while southern VA and NE NC should be dry.
Remaining cool with highs in the 60s NE to the low-mid 70s SW. It looks dry from Sunday night through Monday with lows in the 40s inland to the 50s near the coast, followed by highs Mon in the mid-upper 70s. Unsettled conditions return Tue as a southern stream system moves ENE twd the mid Atlantic, and across the area Wed. High chc PoPs for now.

AVIATION /18Z THURSDAY THROUGH TUESDAY/
As of 205 PM EDT Thursday...

VFR at all terminals this afternoon w/ a developing CU field across mainland VA and NC. Skies are mainly clear on the ern shore (SBY). Also noting some higher clouds sliding through. A frontal boundary is situated across central VA and winds are light and variable near the front. To the S of the boundary, winds are southerly. To the N of the boundary, winds are E/NE.
This boundary could serve to focus storm development later this aftn and evening, especially near RIC. Elsewhere (ORF/PHF/ECG), the shower/storm chc continues to trend lower. Any storm could produce heavy rain, gusty winds, and small hail. SBY is also likely to see rain showers this evening/tonight, but not expecting thunder due to easterly onshore flow. IFR CIGs (and potentially VSBY) are forecast at SBY late tonight in BR/FG. The front drops further S early Fri morning, potentially serving to focus additional showers/storms for Fri.

Outlook: Expect to see redeveloping showers/tstms later Friday afternoon and evening (with flight restrictions expected).
Mainly dry most of Saturday, but another chance for showers Saturday night into Sunday. Dry Mon.

MARINE
As of 345 AM EDT Thursday...

Primary area of low pressure is centered near St. Louis early this morning with a cold front extending down to the S and SW into NE TX.
A stationary front remains draped across the Midwest and eastward along the Mason Dixon line and further NE into another area of low pressure over New England. Winds aloft are largely W-SW with several perturbations/kinks noted in the flow. Winds locally are from the W or SW 5-10 kt with gust to 15 kt. Waves in the bay are 1-2 ft with seas 2-3 ft.

Complex scenario is expected to unfold today with most guidance now showing the stationary front making south and southwestward progress in a backdoor fashion this morning. Winds behind the boundary will generally be easterly 10-15 kt while areas to the south of the front will see continued S or SW flow around 10 kt. One of the aforementioned shortwaves aloft will result in weak surface cyclogenesis inland this afternoon which should cause the boundary to stall across the local waters later this afternoon into the evening hours. Guidance is quite variable regarding the potential for and coverage of showers and thunderstorms this afternoon with substantial convection upstream lending uncertainty regarding the degree of local destabilization this afternoon. Any storms that are able to form will pose a threat for strong winds this afternoon and evening. There is even a chance for tornadoes/waterspouts if a storm is able to ride along the frontal boundary. The front will linger across the area tonight with widely varying wind directions on either side of the boundary. Low pressure develops along the front Friday evening which will steepen the pressure gradient with NE winds increasing to 15-20 kt in the Ches Bay, lower James River, and Currituck Sound while offshore zones see closer to 20-25 kt. SCA headlines are likely Friday night into Saturday before deepening low pressure pulls away from the region. 1-2 ft waves in the bay will persist through most of Friday before increasing to 2-3 ft late Friday into Saturday. Seas generally maintain 3-4 ft through Friday afternoon but increase to 4-6 ft by early Saturday morning.
Improving marine conditions are expected later on Saturday with seas likely falling below SCA thresholds Saturday evening.

TIDES/COASTAL FLOODING
As of 345 AM EDT Thursday...

Coastal Flood Advisories continue for bayside portions of the MD Eastern Shore through 7 am. The subsequent high tide this afternoon is not expected to cause any coastal flooding but the next high tide could see another round of nuisance to minor flooding in these same areas late tonight.

AKQ WATCHES/WARNINGS/ADVISORIES
MD...None.
NC...None.
VA...None.
MARINE...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi43 min 69°F29.66
CRYV2 - 8638595 - South Craney Island, VA 3 mi43 min NNE 4.1G6 76°F 29.63
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi43 min WNW 1.9G1.9 78°F 29.63
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi43 min NW 4.1G5.1 76°F 29.64
MNPV2 - 8639348 - Money Point, VA 11 mi43 min SW 7G8.9 81°F 71°F29.63
44087 12 mi35 min 73°F1 ft
44064 14 mi31 min 0G1.9 78°F 69°F2 ft
CHBV2 16 mi43 min NW 4.1G5.1 76°F 29.62
CHYV2 - 8638999 - Cape Henry, VA 18 mi43 min NNE 2.9G5.1 76°F 29.66
44072 19 mi61 min ENE 3.9G5.8 74°F
YKTV2 - 8637689 - Yorktown, VA 22 mi43 min ENE 8.9G9.9 71°F 69°F29.65
KPTV2 - 8632200 - Kiptopeke, VA 25 mi43 min N 1.9G2.9 74°F 68°F29.67
44041 - Jamestown, VA 30 mi31 min 0G1.9 79°F 75°F
44099 - Cape Henry, VA (147) 33 mi35 min 68°F2 ft
YRSV2 - Chesapeake Bay,VA 39 mi61 min SE 1 78°F 29.6564°F
44058 - Stingray Point, VA 44 mi31 min ENE 3.9G7.8 70°F 69°F1 ft
RPLV2 - 8632837 - Rappahannock Light, VA 46 mi43 min WNW 2.9G4.1 29.68


Wind History for South Craney Island, VA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KNGU NORFOLK NS (CHAMBERS FLD),VA 3 sm31 minW 0310 smMostly Cloudy82°F64°F55%29.64
KORF NORFOLK INTL,VA 8 sm39 minW 0410 smA Few Clouds82°F63°F51%29.63
KLFI LANGLEY AFB,VA 10 sm35 minW 0410 smMostly Cloudy81°F63°F54%29.62
KPVG HAMPTON ROADS EXECUTIVE,VA 12 sm34 minWSW 10G1510 smPartly Cloudy82°F64°F55%29.64
KPHF NEWPORT NEWS/WILLIAMSBURG INTL,VA 16 sm36 mincalm10 smA Few Clouds79°F64°F61%29.64
KCPK CHESAPEAKE RGNL,VA 18 sm15 minSW 0610 smMostly Cloudy82°F63°F51%29.63
KNTU OCEANA NAS /APOLLO SOUCEK FIELD/,VA 18 sm34 minWSW 0810 smMostly Cloudy82°F64°F55%29.63
KFAF FELKER AAF,VA 20 sm35 minN 0310 smPartly Cloudy79°F64°F61%29.61
KNFE FENTRESS NALF,VA 20 sm34 minvar 0510 smMostly Cloudy84°F64°F52%29.64
KSFQ SUFFOLK EXECUTIVE,VA 22 sm15 minWSW 11G1410 smClear82°F63°F51%29.64
Link to 5 minute data for KNGU


Wind History from NGU
(wind in knots)
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Tide / Current for Sewells Point, Hampton Roads, Virginia
   
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Sewells Point, Hampton Roads, Virginia, Tide feet


Tide / Current for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
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Thu -- 12:51 AM EDT     -0.00 knots Slack
Thu -- 04:18 AM EDT     -1.71 knots Max Ebb
Thu -- 06:00 AM EDT     Sunrise
Thu -- 06:46 AM EDT     Moonrise
Thu -- 07:32 AM EDT     0.00 knots Slack
Thu -- 09:45 AM EDT     0.86 knots Max Flood
Thu -- 12:28 PM EDT     -0.00 knots Slack
Thu -- 04:04 PM EDT     -1.54 knots Max Ebb
Thu -- 07:02 PM EDT     0.00 knots Slack
Thu -- 08:00 PM EDT     Sunset
Thu -- 09:57 PM EDT     1.45 knots Max Flood
Thu -- 10:16 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Chesapeake Bay Entrance, Virginia Current, knots
12
am
0.5
1
am
-0.1
2
am
-0.8
3
am
-1.4
4
am
-1.7
5
am
-1.6
6
am
-1.1
7
am
-0.4
8
am
0.3
9
am
0.8
10
am
0.9
11
am
0.6
12
pm
0.2
1
pm
-0.3
2
pm
-0.8
3
pm
-1.3
4
pm
-1.5
5
pm
-1.4
6
pm
-0.8
7
pm
-0
8
pm
0.7
9
pm
1.3
10
pm
1.5
11
pm
1.3


Weather Map
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GEOS Local Image of east us   
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Wakefield, VA,





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