Coastal Flood Advisory
Starts in 57 min
When
Until 5 PM EDT this afternoon, especially around the time of high tide.
Where
Shoreline in Charles and King George Counties.
Issued for this forecast zone · National Weather Service Baltimore MD/Washington DC
What, impacts and precautionsHide details
What
Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding.
Impacts
At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren.
Additional details
Tides one and a half to two feet above normal. The next high tide at Goose Bay is at 3:15 PM. The next high tide at Dahlgren is at 2:03 PM.
Precautionary actions
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Areas: Charles; King George
See it on weather.gov (opens in a new tab)

Observed 9:55 AM EDT at KDAA

Potomac Heights, MD weather

Sunny and 55°13°, jacket by 7 PM.

Mostly agree

Now 55°13°

Sunny

Wind: 3 mph5 km/h; From the north-northeast. 35–6 mph10 km/h through 11 PM
Dew point: 44°7°; Comfortable
UV index: 3Moderate; Moderate until 5 PM · peak 4
Air quality: 43Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.53 inHg1034 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° cooler than this time yesterday (59°15° then, 55°13° now)

Good hours for

High 64°18° today at 3 PM
Below 50°10° tonight after 9 PM
Low 42°6° tonight at 2 AM
Above 50°10° tomorrow by 10 AM

This afternoonUp to 64°18° by 3 PM · Clear
TonightDown to 42°6° by 2 AM · Partly cloudy
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 67°19° by 4 PM · Clear
Tomorrow nightDown to 44°7° by 1 AM · Clear
Monday morningUp to 51°11° by 10 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 11a	Sunny	54°12° (likely 54°12° to 58°14°)	54°12°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	71%	6%	3
Sat 12p	Mostly sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	6 mph10 km/h from E, gusts 10 mph16 km/h	57%	20%	4
Sat 1p	Sunny	61°16° (likely 60°16° to 63°17°)	61°16°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	53%	28%	4
Sat 2p	Mostly sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	5 mph8 km/h from E, gusts 8 mph14 km/h	50%	34%	4
Sat 3p	Partly sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	46%	30%	4
Sat 4p	Partly sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	48%	25%	3
Sat 5p	Partly sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from E, gusts 7 mph12 km/h	50%	21%	1
Sat 6p	Partly cloudy	60°16° (likely 58°14° to 60°16°)	60°16°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	55%	20%	0
Sat 7p	Partly cloudy	54°12° (likely 54°12° to 55°13°)	54°12°	0%	3 mph5 km/h from E, gusts 8 mph14 km/h	71%	17%	0
Sat 8p	Clear	51°11° (likely 51°11° to 53°12°)	51°11°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	80%	4%	0
Sat 9p	Mostly clear	49°9° (likely 49°9° to 52°11°)	48°9°	0%	3 mph5 km/h from NE, gusts 8 mph12 km/h	86%	26%	0
Sat 10p	Mostly clear	46°8° (likely 46°8° to 54°12°)	45°7°	0%	3 mph5 km/h from NE, gusts 6 mph10 km/h	96%	55%	0
Sat 11p	Partly cloudy	45°7° (likely 45°7° to 52°11°)	44°7°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	100%	38%	0
Sun 12a	Mostly clear	43°6° (likely 43°6° to 52°11°)	41°5°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	100%	42%	0
Sun 1a	Mostly clear	43°6° (likely 43°6° to 52°11°)	43°6°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	100%	60%	0
Sun 2a	Mostly clear	42°6° (likely 42°6° to 50°10°)	42°6°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	100%	38%	0
Sun 3a	Clear	45°7° (likely 44°7° to 48°9°)	45°7°	0%	2 mph3 km/h from NE, gusts 5 mph7 km/h	100%	11%	0
Sun 4a	Clear	45°7° (likely 43°6° to 49°9°)	44°7°	0%	3 mph5 km/h from NE, gusts 4 mph6 km/h	100%	13%	0
Sun 5a	Clear	43°6° (likely 43°6° to 48°9°)	41°5°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	100%	5%	0
Sun 6a	Clear	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	100%	10%	0
Sun 7a	Sunny	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from NE, gusts 6 mph9 km/h	100%	17%	0
Sun 8a	Mostly sunny	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	100%	28%	0
Sun 9a	Sunny	45°7° (likely 45°7° to 50°10°)	44°7°	0%	3 mph5 km/h from NE, gusts 6 mph10 km/h	100%	23%	1
Sun 10a	Mostly sunny	50°10° (likely 50°10° to 55°13°)	50°10°	0%	2 mph3 km/h from NE, gusts 7 mph12 km/h	89%	26%	2
Sun 11a	Mostly sunny	55°13° (likely 55°13° to 60°16°)	55°13°	0%	2 mph3 km/h from NE, gusts 9 mph14 km/h	74%	18%	3
Sun 12p	Sunny	59°15° (likely 59°15° to 64°18°)	59°15°	0%	2 mph3 km/h from NE, gusts 7 mph12 km/h	64%	6%	4
Sun 1p	Mostly sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	1 mph2 km/h from NE, gusts 6 mph9 km/h	54%	10%	4
Sun 2p	Sunny	64°18° (likely 64°18° to 66°19°)	64°18°	0%	1 mph2 km/h from NE, gusts 5 mph7 km/h	52%	13%	4
Sun 3p	Sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	48%	14%	4
Sun 4p	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	47%	11%	3
Sun 5p	Sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	48%	3%	1
Sun 6p	Clear	62°17° (likely 60°16° to 63°17°)	62°17°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	56%	1%	0
Sun 7p	Clear	57°14° (likely 56°13° to 58°14°)	57°14°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	69%	0%	0
Sun 8p	Clear	54°12° (likely 52°11° to 54°12°)	54°12°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	80%	0%	0
Sun 9p	Clear	52°11° (likely 50°10° to 52°11°)	52°11°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	86%	0%	0
Sun 10p	Clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	93%	1%	0
Sun 11p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	1%	0
Mon 12a	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	2%	0
Mon 1a	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from SW, gusts 3 mph4 km/h	100%	2%	0
Mon 2a	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from W, gusts 2 mph4 km/h	100%	3%	0
Mon 3a	Clear	44°7° (likely 44°7° to 46°8°)	44°7°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	100%	15%	0
Mon 4a	Mostly clear	45°7° (likely 44°7° to 46°8°)	44°7°	0%	3 mph5 km/h from W, gusts 3 mph6 km/h	100%	22%	0
Mon 5a	Clear	44°7° (likely 43°6° to 46°8°)	42°6°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	100%	27%	0
Mon 6a	Mostly clear	43°6° (likely 42°6° to 46°8°)	41°5°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	100%	27%	0
Mon 7a	Mostly sunny	42°6° (likely 41°5° to 45°7°)	40°4°	0%	3 mph5 km/h from W, gusts 2 mph4 km/h	100%	29%	0
Mon 8a	Mostly sunny	43°6° (likely 42°6° to 44°7°)	41°5°	0%	3 mph5 km/h from W, gusts 2 mph3 km/h	100%	40%	0
Mon 9a	Mostly sunny	46°8° (likely 45°7° to 50°10°)	45°7°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	93%	37%	1
Mon 10a	Sunny	51°11° (likely 49°9° to 56°13°)	51°11°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	83%	25%	2

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 64°18°, low 42°6°. Typical 66°19° / 46°8°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 64°18°
  Dry
2. Evening
  6 PM–midnight
  Mostly clear, 51°11°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Official NWS forecast
Today: Sunny, with a high near 64. East wind around 6 mph.
Tonight: Mostly clear, with a low around 42. Northeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
38°3°–42°6°
Typical high / low
66°19° / 46°8°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 67°19°, low 42°6°. Typical 66°19° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Official NWS forecast
Day: Sunny, with a high near 67. Northeast wind 0 to 3 mph.
Night: Clear, with a low around 42. South wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–67°19°
Low, likely
42°6°–46°8°
Typical high / low
66°19° / 46°8°
Wind
6 mph10 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 53°12°. Typical 65°18° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 69. West wind around 5 mph.
Night: Clear, with a low around 53.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–69°21°
Low, likely
41°5°–53°12°
Typical high / low
65°18° / 46°8°
Wind
6 mph10 km/h, gusts 11 mph18 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 67°19°, low 50°10°. Typical 65°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
49°9°–51°11°
Typical high / low
65°18° / 45°7°
Wind
8 mph13 km/h, gusts 20 mph31 km/h
UV peak
4
Wednesday, Oct 28. Mostly cloudy. High 65°18°, low 52°11°. Typical 64°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 65.
Night: Mostly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
46°8°–52°11°
Typical high / low
64°18° / 45°7°
Wind
6 mph10 km/h, gusts 14 mph23 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 69°21°, low 54°12°. Typical 64°18° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Mostly clear, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
46°8°–54°12°
Typical high / low
64°18° / 45°7°
Wind
5 mph9 km/h, gusts 20 mph33 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 72°22°, low 54°12°. Typical 64°18° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–76°24°
Low, likely
47°8°–54°12°
Typical high / low
64°18° / 44°7°
Wind
9 mph15 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 49°9°. Typical 63°17° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–74°23°
Low, likely
47°8°–52°11°
Typical high / low
63°17° / 44°7°
Wind
9 mph15 km/h, gusts 23 mph37 km/h
UV peak
2
Sunday, Nov 1. Cloudy. High 68°20°, low 51°11°. Typical 63°17° / 44°7°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance
4. Overnight
  midnight–6 AM
  Partly cloudy, 55°13°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–73°23°
Low, likely
41°5°–56°13°
Typical high / low
63°17° / 44°7°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 69°21°, low 55°13°. Typical 63°17° / 43°6°. Rain 0.07 in1.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–77°25°
Low, likely
45°7°–60°16°
Typical high / low
63°17° / 43°6°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 42°.
Tomorrow
Dry, high 67°, low 42°, warming up.
Monday
Dry, high 69°, low 53°.
Rest of week
Mostly dry, highs 65–72°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LWX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Mattawoman Creek near Pomonkey

4.1 mi

Below flood stage

Level: 2.2 ft
Flow: 8 cfs

Reading from Sat 9:50 AM · NWS gauge page

Potomac River at Leesylvania State Park

6.2 mi

Below flood stage

Level: 2.3 ft

Reading from Sat 10:10 AM · NWS gauge page

Easy Creek at Prince William Parkway

7.9 mi

Level: 0.0 ft

Reading from Sat 10:10 AM · NWS gauge page

Little Hunting Creek Trib at Audubon Ave

11 mi

Below flood stage

Level: 19.1 ft

Reading from Sat 10:20 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 61% less heating than a typical week.

This week 27Typical 70

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 23
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 5 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 44°F).

Open the windows?

Today, 1:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Quantico Mcas · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 1°0° colder than normal (daily mean temperature).

−6°−3°SunOct 18
−3°−2°MonOct 19
+4°+2°TueOct 20
+1°±0°WedOct 21
+2°+1°ThuOct 22
±0°FriOct 23
—SatOct 24

Potomac Heights weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:41–6:34 PM; Morning 7:10–8:03 AM
Blue hour: 6:34–6:45 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Mostly clear 3–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:39 AM · rises 5:14 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Potomac Heights. The highest point on the skyline is about 3,900 ft, 68 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory

Potomac Heights, MD weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Mattawoman Creek near Pomonkey

Potomac River at Leesylvania State Park

Easy Creek at Prince William Parkway

Little Hunting Creek Trib at Audubon Ave

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon