Thursday, July29, 2021
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Marine Weather and Tides
Portsmouth, VA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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.

Sunrise 6:07AMSunset 8:16PM Thursday July 29, 2021 8:09 PM EDT (00:09 UTC) Moonrise 10:45PMMoonset 10:45AM Illumination 69% Phase: Waning Gibbous; Moon at 20 days in cycle
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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ANZ632 Chesapeake Bay From New Point Comfort To Little Creek Va- 715 Pm Edt Thu Jul 29 2021
.small craft advisory in effect until 7 am edt Friday...
Tonight..S winds 10 to 15 kt, becoming sw 15 to 20 kt late this evening and overnight. Waves 2 to 3 ft. A slight chance of showers with isolated tstms this evening, then a chance of showers and tstms after midnight.
Fri..W winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Waves 2 to 3 ft, subsiding to 1 foot late in the morning. A chance of showers and tstms early in the morning.
Fri night..NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Waves 1 to 2 ft.
Sat..NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Waves 1 to 2 ft.
Sat night..SE winds 5 to 10 kt. Waves 1 foot.
Sun..SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely.
Sun night..S winds 5 to 10 kt, becoming W after midnight. Waves 1 to 2 ft. A chance of showers.
Mon..NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers in the afternoon.
Mon night..E winds 5 to 10 kt. Waves 1 foot. A chance of showers.
Tue..NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. A chance of tstms in the afternoon.
Tue night..SE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of tstms in the evening. A chance of showers. Winds and waves higher in and near tstms.
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 715 Pm Edt Thu Jul 29 2021
Tonight..S winds 15 to 20 kt, becoming sw 10 to 15 kt late. Seas 3 to 4 ft. Dominant period 5 seconds. Scattered tstms this evening. Scattered showers. A chance of tstms after midnight.
Fri..W winds 10 to 15 kt, becoming nw 5 to 10 kt in the afternoon. Seas 3 to 4 ft. Dominant period 6 seconds. A chance of showers and tstms early in the morning.
Fri night..N winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Dominant period 6 seconds.
Sat..NE winds 10 to 15 kt, diminishing to 5 to 10 kt early in the afternoon, then becoming E late. Seas 3 to 4 ft. Dominant period 5 seconds.
Sat night..SE winds 5 to 10 kt. Seas 2 to 3 ft. Dominant period 6 seconds.
Sun..S winds 5 to 10 kt. Seas 2 to 3 ft. Dominant period 6 seconds. A chance of showers.
Sun night..S winds 10 kt, becoming nw after midnight. Seas 2 to 3 ft. Dominant period 7 seconds. A chance of showers.
Mon..N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft.
Mon night..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Tue..E winds 10 kt. Seas 2 to 3 ft. A chance of showers.
Tue night..E winds 5 to 10 kt. Seas around 3 ft. A chance of showers. Winds and seas higher in and near tstms.


7 Day Forecast for Portsmouth, VA
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location: 36.929, -76.345     debug


7 Day Forecast for Chincoteague, VA
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location: 37.834, -75.409     


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 292346 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 746 PM EDT Thu Jul 29 2021

SYNOPSIS. Low pressure will track by north of the local area tonight to be followed by its trailing cold front during Fri. The front stalls across the Carolinas by Saturday. Low pressure moves east along the front Sunday.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. As of 745 PM EDT Thursday .

Isolated supercell continues to drop SSE east of the Richmond metro. This long-lived cell has a history of wind damage and has shown impressive hail signatures on radar. If the cell can manage to hold together it could impact the Williamsburg area and areas to the south and southeast. The environment across the region remains supportive of strong to severe storms but will little forcing to trigger any new convection. Severe Thunderstorm Watch 402 is in effect until 9pm.

Additional showers with a chance of thunder could impact the NE portion of the area including the MD eastern shore and Northern Neck after midnight tonight. Lows tonight in the low 70s N to the mid and upper 70s S.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/. As of 310 PM EDT Thursday .

The cold front progresses into/through srn/SE portions of the FA Fri Right now. SPC has MRGL along/S of the Albemarle Sound . still will carry 20-30% far srn/SE VA across NE NC before the frontal passage. Will be another hot/humid day (heat indices topping out around 100F one last day in this stretch) across srn/SE VA and NE NC (pre-frontal passage) while drying/lowering dew points occurs over central/nrn portions. Highs in the u80s-l90s.

Any lingering SHRAs/tstms Fri evening likely to diminish/end early. Period of NNE winds (gusty at the coast) and cold/dry air advection Fri night into Sat ends the recent period of high humidity heading into the weekend. Low Fri night in the l60s N to around 70F far SE.

The front stalls across the Carolinas by Sat. Expecting mostly sunny conditions N and partly sunny S and very comfy for the last day of July Highs in the l80s. u70s right along the coast/beaches.

This time of year . hard to keep the dry/cooler wx here. Hi pres shifts off the SE coast of New England Sat night leading to a quick return of moisture from the SSW. A series of lo pres systems forecast to moves along the stalled front (across NC). Increasing PoPs to 50-70% (mainly SHRAs) for late Sat night into Sun afternoon along w/ widespread clouds. Lows Sat night mainly in the m-u60s. Highs Sun in the 70s to l80s.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. As of 100 PM EDT Thursday .

Unsettled wx conditions expected early/mid next week as trough aloft amplifies through Great Lakes and OH/TN Valleys. Initially a frontal boundary is forecast to push just offshore Sun night/Mon then due to the trough digging in to the W of the FA . the front would likely back WNW into the local area through mid week. The overall pattern setting up is fairly typical for mid Summer (and fits an MJO forecast of a transition from phase 6 to phases 8 and 1 - favoring BLO normal temps and near-ABV normal pcpn) and usually leads to a few/several days of high potential for SHRAs/tstms and psbl heavy rainfall. Have capped PoPs at 50% through the period.

Nighttime lows through the period mainly from the m60s to around 70F. Highs Mon 80-85F. Highs Tue in the l80s. Highs Wed and Thu in the l-m80s.

AVIATION /00Z FRIDAY THROUGH TUESDAY/. As of 745 PM EDT Thursday .

Will show prevailing VFR at all sites through the 00z TAF period. One exception could be PHF where a long-lived supercell continues to drop SSE toward the terminal. Current trajectory would keep the core of the cell a bit to the west of PHF. Will include VCTS at PHF and VCSH at ORF for lingering precip this evening. Elsewhere, mostly dry tonight with SCT/BKN mid level cloud debris. A few showers or storms could impact SBY after midnight so have included VCSH for this period. SW winds 10-15 kt become NW 5-10 by mid morning Friday behind a weak cold front. Additional storms are possible at ECG once heating gets underway on Friday. Confidence in coverage and placement is too low to include in the forecast at this time.

Generally VFR Fri night/Sat though NNE winds become gusty near the coast. Lo pres tracking across NC Sun may result in IFR/MVFR conditions and psbl SHRAs.

MARINE. As of 320 PM EDT Thursday .

A cold front moves over the local waters late tonight into Friday. Ahead of the front, winds are S/SW 10-15 kt, becoming SW 15-20 kt late this evening into tonight. A Small Craft Advisory remains in effect for the Chesapeake Bay, Lower James, and Currituck Sound from 8 PM through most of the night. As the cold front moves through late tonight through Fri morning, winds shift to NW/N 10-15 kt, remaining N 10-15 kt through Fri night. Winds may approach SCA criteria with the CAA surge late Fri night into early Sat, but for now, expect winds to remain around 15 kt. Winds switch from NE 5-10 kt to SE Sat into Sat night, remaining SE 10-15 kt through Sun. Another cold front comes through Sun night with winds shifting back to N Mon.

Waves of 1-2 ft and seas of 2-3 ft build to 2-3 ft and 3-4 ft respectively overnight before subsiding back to 1-2 ft and 2-3 ft by Fri afternoon through early next week. Seas may approach or briefly touch 5 ft tonight, but confidence is too low to issue a SCA at this time.

Moderate rips expected Sat.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 7 AM EDT Friday for ANZ631>634-638. Small Craft Advisory until 4 AM EDT Friday for ANZ630.

SYNOPSIS . MPR NEAR TERM . RHR SHORT TERM . ALB LONG TERM . ALB AVIATION . RHR MARINE . RMM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi51 min 82°F1011.3 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi51 min SW 9.9 G 13 88°F 1011.2 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi51 min SW 13 G 16 86°F 1011.5 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi51 min WSW 11 G 12 86°F 1011.5 hPa
MNPV2 - 8639348 - Money Point, VA 11 mi51 min SW 5.1 G 8 88°F 85°F1011.2 hPa
44087 12 mi43 min 82°F1 ft
CHBV2 16 mi51 min WSW 8.9 G 14 86°F 1010.2 hPa
CHYV2 - 8638999 - Cape Henry, VA 18 mi51 min SSW 8 G 13 87°F 1011.6 hPa
44072 19 mi39 min SW 12 G 12 84°F 82°F2 ft
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi51 min WSW 14 G 16 86°F
YKTV2 - 8637689 - Yorktown, VA 22 mi51 min SW 7 G 9.9 86°F 83°F1010.8 hPa
KPTV2 - 8632200 - Kiptopeke, VA 25 mi51 min W 6 G 8 77°F
44041 - Jamestown, VA 30 mi39 min SSW 5.8 G 7.8 84°F 1011.6 hPa
44099 - Cape Henry, VA (147) 33 mi43 min 78°F3 ft
YRSV2 - Chesapeake Bay,VA 39 mi99 min Calm 85°F 1011 hPa77°F
WAHV2 - 8631044 - Wachapreague, VA 59 mi51 min SW 9.9 G 14 81°F 87°F1011.2 hPa
44014 - VIRGINIA BEACH 64 NM East of Virginia Beach, VA 83 mi39 min SSW 16 G 19 80°F 79°F1012.2 hPa77°F

Wind History for South Craney Island, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi70 minSW 98.00 miMostly Cloudy89°F74°F61%1011.4 hPa
Norfolk, Norfolk International Airport, VA8 mi78 minSW 15 G 2110.00 miPartly Cloudy88°F74°F63%1010.7 hPa
Langley Air Force Base, VA11 mi2.2 hrsW 910.00 miMostly Cloudy87°F78°F73%1012.1 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi75 minSW 1110.00 miFair86°F76°F72%1011 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi73 minSSW 1010.00 miMostly Cloudy87°F74°F65%1011 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi74 minSSW 97.00 miPartly Cloudy86°F74°F67%1011.5 hPa
Fort Eustis / Felker, VA21 mi2.2 hrsSW 510.00 miFair88°F77°F70%1010.8 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi74 minSSW 610.00 miFair87°F76°F70%1011.8 hPa

Link to 5 minute data for KNGU

Wind History from NGU (wind in knots)
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Last 24hrCalm433544Calm4NE634SW4SE566S8W8S9SW10SW11
G17
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1 day agoCalmS4S4S3S3S5SW4SW3CalmCalmCalmW5W54N10N11NE11NE9N6E7SE3CalmCalmN3
2 days agoW12W10SW9SW565Calm455CalmCalmSW3NW4W4Calm3N6N56E6E7E8S5

Tide / Current Tables 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.


Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
Click for Map
Thu -- 12:37 AM EDT     0.87 knots Max Flood
Thu -- 03:43 AM EDT     -0.00 knots Slack
Thu -- 06:07 AM EDT     Sunrise
Thu -- 07:27 AM EDT     -1.21 knots Max Ebb
Thu -- 10:43 AM EDT     0.00 knots Slack
Thu -- 11:44 AM EDT     Moonset
Thu -- 01:10 PM EDT     0.70 knots Max Flood
Thu -- 04:18 PM EDT     -0.00 knots Slack
Thu -- 08:00 PM EDT     -1.00 knots Max Ebb
Thu -- 08:13 PM EDT     Sunset
Thu -- 11:02 PM EDT     0.00 knots Slack
Thu -- 11:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.90.70.3-0.1-0.6-1-1.2-1.2-0.9-0.40.10.50.70.60.40.1-0.3-0.6-0.9-1-0.9-0.5-0

Weather Map
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GEOS Local Image of Mid-Atlantic    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.
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