Union, WV Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Union, WV

April 23, 2024 3:21 AM EDT (07:21 UTC) Change Location
Sunrise 6:34 AM   Sunset 8:05 PM
Moonrise 7:05 PM   Moonset 5:18 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.

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7 Day Forecast for Marine Location Near Union, WV
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Area Discussion for - Blacksburg, VA
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Area Forecast Discussion National Weather Service Blacksburg VA 206 AM EDT Tue Apr 23 2024

High pressure remains over the area today bringing with dry and warm weather. A cold front crosses our region on Wednesday with scattered showers mainly across the mountains. Temperatures remain a few degrees either side of normal through the week with high pressure returning behind the front.

As of 200 AM EDT Tuesday...

Key Messages:

1. Warm and slightly gusty today/tonight.

2. Showers by Wednesday morning in the western mountains.

Scattered cirrus was moving through the southern and central Appalachians associated with a couple weak short waves moving through the Midwest and the OH Valley. A Frost Advisory remains in effect for eastern parts of the forecast area until 9 AM with lows dipping into the mid 30s.

NNW flow aloft becomes more WNW, allowing for more upper level energy and cirrus to move through, especially tonight. Highs should still warm into the 60s and 70s with comfortable but dry humidity levels and slightly gusty SW winds.

By tonight a more robust short wave will dig into the OH Valley, pushing a frontal boundary through our area after 2 AM. We are removed from the stronger mid and upper level forcing, but a combination of 40 kts around 850-700mb, weak frontogenetical forcing and orographic lift will bring a few showers to the western mountains before daybreak. QPF amounts stay below a quarter inch through daybreak, and drop off to almost nothing towards the New River Valley.

Confidence is high in the near term forecast.

As of 200 AM EDT Tuesday...

Key Messages:

1) Confidence is high for dry weather on Thursday.

2) A chance of showers exists in the mountains for early Wednesday and again by late Friday.

A cold front will cross the Appalachian Mountains on Wednesday.
However, the area of low pressure associated with this front will stay well to the north in eastern Canada. The frontal boundary will also not be able to tap into any Gulf or Atlantic moisture. So, any consequential rainfall from showers will remain confined in the mountains from Boone to Lewisburg. While a little bit of moisture could spill eastward into the Piedmont, it will likely just be in the form of sprinkles as it must contend with the wind turning towards the west to provide downslope flow east of the Blue Ridge.

Once the cold front departs offshore by Wednesday night, high pressure will build southeastward from the Great Lakes. The wind should diminish enough to allow good radiational cooling that would push temperatures down into the 30s and 40s. Some patchy frost is possible for western Greenbrier County of West Virginia where temperatures fall close to the freezing mark by Thursday morning. Dry weather will persist through Thursday and Thursday night. By Friday, high pressure should wedge against the eastern slopes of the Blue Ridge, and an easterly flow should keep temperatures near or slightly below normal. A warm front will nudge northward around the western periphery of the wedge during Friday afternoon, which could bring a chance of showers for the mountains.

As of 200 AM EDT Tuesday...

Key Messages:

1) Confidence is high for a warming trend during the weekend.

2) Chances of showers and thunderstorms will gradually increase by early next week.

High pressure will slowly head offshore during Saturday, while a warm front heads north of the Mid Atlantic. Only a low chance of showers and thunderstorms is possible for the mountains by Saturday afternoon. The wind should swing to the south on Saturday night and eventually the southwest by Sunday and Monday. The increasing warm air advection and an upper level ridge building overhead will boost high temperatures above normal to start the new week. Meanwhile, a low pressure system intensifying in the Plains should combine with the increasing warmth and moisture to promote higher chances of showers and thunderstorms by Monday.

As of 200 AM EDT Tuesday...

VFR conditions are expected through at least 24/06Z.

Light and variable winds early this morning become SSW after 15Z today. Will see some gusty winds to 20 kts today and tonight, with periods of cirrus. Frontal boundary approaches between 6-12Z Wednesday, with MVFR ceilings moving in from the northwest and primarily affecting BLF and LWB through 12Z Wed. After 6Z, winds become WNW as the front pushes southeast.

Extended Aviation Outlook...

Thursday looks dry and VFR.

A warm front approaches Friday, and although VFR conditions remain, but could start to see sub-VFR toward LWB/BLF late Friday into Saturday. -SHRA looks unlikely outside of sprinkles during this time for BLF.

VA...Frost Advisory until 9 AM EDT this morning for VAZ024-035- 044>047-058-059.
NC...Frost Advisory until 9 AM EDT this morning for NCZ006.

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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KLWB GREENBRIER VALLEY,WV 17 sm26 mincalm10 smClear34°F28°F80%30.14
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Blacksburg, VA,

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