Gale Warning 36, NWS Baltimore/Washington

841 
WHUS71 KLWX 101552
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1052 AM EST Fri Dec 10 2021

ANZ530>543-110200-
/O.CAN.KLWX.SC.Y.0252.000000T0000Z-211210T1700Z/
/O.CON.KLWX.SC.Y.0253.211211T0600Z-211211T2100Z/
/O.CON.KLWX.GL.W.0036.211211T2100Z-211212T0600Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
1052 AM EST Fri Dec 10 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 1 AM EST
SUNDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...For the Gale Warning, southwest winds 15 to 20 kt with 
  gusts up to 40 kt and waves 2 to 4 ft expected. For the Small 
  Craft Advisory, south winds 10 to 20 kt with gusts up to 35 kt 
  and waves 2 to 4 ft expected.

* WHERE...Tidal Potomac River from Key Bridge to Smith Point VA, 
  and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...For the Gale Warning, from 4 PM Saturday to 1 AM EST 
  Sunday. For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

451 
WHUS71 KLWX 110145
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
845 PM EST Fri Dec 10 2021

ANZ531>534-537-539>541-543-110945-
/O.EXT.KLWX.SC.Y.0253.211211T0800Z-211211T1700Z/
/O.EXT.KLWX.GL.W.0036.211211T1700Z-211212T1100Z/
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
845 PM EST Fri Dec 10 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TO NOON EST
SATURDAY...
...GALE WARNING NOW IN EFFECT FROM NOON SATURDAY TO 6 AM EST
SUNDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt late
  tonight through Saturday morning, increasing to 15 to 25 kt with
  occasional gusts to 35 kt mainly over the near shore waters
  Saturday midday through late afternoon. A shift to the west and
  northwest is expected Saturday evening; winds are expected to
  increase to 20 to 30 kt with gusts up to 45 kt and waves of 2 to
  4 feet following the wind shift.

* WHERE...Chesapeake Bay from Pooles Island MD to Smith Point 
  VA, Chester River to Queenstown MD, Tangier Sound and the 
  inland waters surrounding Bloodsworth Island, Choptank River 
  to Cambridge MD and the Little Choptank River, Tidal Potomac 
  from Cobb Island MD to Smith Point VA, and Eastern Bay.

* WHEN...For the Gale Warning, from noon Saturday to 6 AM EST 
  Sunday. For the Small Craft Advisory, from 3 AM to noon EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 8
  PM and midnight Saturday evening. Brief gusts to storm force are
  possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ536-110945-
/O.EXT.KLWX.SC.Y.0253.211211T0800Z-211211T1700Z/
/O.EXT.KLWX.GL.W.0036.211211T1700Z-211212T0600Z/
Tidal Potomac from Indian Head to Cobb Island MD-
845 PM EST Fri Dec 10 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TO NOON EST
SATURDAY...
...GALE WARNING NOW IN EFFECT FROM NOON SATURDAY TO 1 AM EST
SUNDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt late 
  tonight through Saturday morning, increasing to 15 to 25 kt with
  occasional gusts to 35 kt mainly over the near shore waters 
  Saturday midday through late afternoon. A shift to the west and 
  northwest is expected Saturday evening; winds are expected to 
  increase to 20 to 30 kt with gusts up to 45 kt and waves of 2 to
  4 feet following the wind shift.

* WHERE...Tidal Potomac from Indian Head to Cobb Island MD.

* WHEN...For the Gale Warning, from noon Saturday to 1 AM EST 
  Sunday. For the Small Craft Advisory, from 3 AM to noon EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 8
  PM and midnight Saturday evening. Brief gusts to storm force are
  possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ530-535-538-542-110945-
/O.EXT.KLWX.SC.Y.0253.211211T1100Z-211211T1700Z/
/O.EXT.KLWX.GL.W.0036.211211T1700Z-211212T0600Z/
Chesapeake Bay north of Pooles Island MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Patapsco River including Baltimore Harbor-
Patuxent River to Broomes Island MD-
845 PM EST Fri Dec 10 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 AM TO NOON EST
SATURDAY...
...GALE WARNING NOW IN EFFECT FROM NOON SATURDAY TO 1 AM EST
SUNDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt Saturday
  morning, increasing to 15 to 25 kt with gusts to 35 kt Saturday
  midday through late afternoon. A shift to the west and 
  northwest is expected Saturday evening; winds are expected to 
  increase to 20 to 30 kt with gusts up to 45 kt and waves of 2 to
  4 feet following the wind shift.

* WHERE...Patapsco River including Baltimore Harbor, Patuxent 
  River to Broomes Island MD, Chesapeake Bay north of Pooles 
  Island MD and Tidal Potomac from Key Bridge to Indian Head MD.

* WHEN...For the Gale Warning, from noon Saturday to 1 AM EST 
  Sunday. For the Small Craft Advisory, from 6 AM to noon EST 
  Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 8
  PM and midnight Saturday evening. Brief gusts to storm force are
  possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

DHOF

736 
WHUS71 KLWX 110955
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
455 AM EST Sat Dec 11 2021

ANZ530-535-538-542-111800-
/O.CAN.KLWX.SC.Y.0253.211211T1100Z-211211T1700Z/
/O.EXT.KLWX.GL.W.0036.211211T1100Z-211212T0600Z/
Chesapeake Bay north of Pooles Island MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Patapsco River including Baltimore Harbor-
Patuxent River to Broomes Island MD-
455 AM EST Sat Dec 11 2021

...GALE WARNING NOW IN EFFECT UNTIL 1 AM EST SUNDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt Saturday 
  morning, increasing to 15 to 25 kt with gusts to 35 kt 
  Saturday midday through late afternoon. A shift to the west 
  and northwest is expected Saturday evening; winds are expected 
  to increase to 20 to 30 kt with gusts up to 45 kt and waves of 
  2 to 4 feet following the wind shift.

* WHERE...Patapsco River including Baltimore Harbor, Patuxent 
  River to Broomes Island MD, Chesapeake Bay north of Pooles 
  Island MD and Tidal Potomac from Key Bridge to Indian Head MD.

* WHEN...Until 1 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ531>534-537-539>541-543-111800-
/O.EXT.KLWX.SC.Y.0253.000000T0000Z-211211T1100Z/
/O.EXT.KLWX.GL.W.0036.211211T1100Z-211212T1100Z/
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
455 AM EST Sat Dec 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST EARLY THIS
MORNING...
...GALE WARNING NOW IN EFFECT UNTIL 6 AM EST SUNDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt late 
  tonight through Saturday morning, increasing to 15 to 25 kt 
  with occasional gusts to 35 kt mainly over the near shore 
  waters Saturday midday through late afternoon. A shift to the 
  west and northwest is expected Saturday evening; winds are 
  expected to increase to 20 to 30 kt with gusts up to 45 kt and 
  waves of 2 to 4 feet following the wind shift.

* WHERE...Chesapeake Bay from Pooles Island MD to Smith Point 
  VA, Chester River to Queenstown MD, Tangier Sound and the 
  inland waters surrounding Bloodsworth Island, Choptank River 
  to Cambridge MD and the Little Choptank River, Tidal Potomac 
  from Cobb Island MD to Smith Point VA, and Eastern Bay.

* WHEN...For the Gale Warning, until 6 AM EST Sunday. For the 
  Small Craft Advisory, until 6 AM EST early this morning.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ536-111800-
/O.EXT.KLWX.SC.Y.0253.000000T0000Z-211211T1100Z/
/O.EXT.KLWX.GL.W.0036.211211T1100Z-211212T0600Z/
Tidal Potomac from Indian Head to Cobb Island MD-
455 AM EST Sat Dec 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST EARLY THIS
MORNING...
...GALE WARNING NOW IN EFFECT UNTIL 1 AM EST SUNDAY...

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt late 
  tonight through Saturday morning, increasing to 15 to 25 kt 
  with occasional gusts to 35 kt mainly over the near shore 
  waters Saturday midday through late afternoon. A shift to the 
  west and northwest is expected Saturday evening; winds are 
  expected to increase to 20 to 30 kt with gusts up to 45 kt and 
  waves of 2 to 4 feet following the wind shift.

* WHERE...Tidal Potomac from Indian Head to Cobb Island MD.

* WHEN...For the Gale Warning, until 1 AM EST Sunday. For the 
  Small Craft Advisory, until 6 AM EST early this morning.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

938 
WHUS71 KLWX 111730
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1230 PM EST Sat Dec 11 2021

ANZ531>534-537-539>541-543-120130-
/O.CON.KLWX.GL.W.0036.000000T0000Z-211212T1100Z/
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
1230 PM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST SUNDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 45 kt and waves 
  2 to 4 ft.

* WHERE...Chesapeake Bay from Pooles Island MD to Smith Point 
  VA, Chester River to Queenstown MD, Tangier Sound and the 
  inland waters surrounding Bloodsworth Island, Choptank River 
  to Cambridge MD and the Little Choptank River, Tidal Potomac 
  from Cobb Island MD to Smith Point VA, and Eastern Bay.

* WHEN...Until 6 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ530-535-536-538-542-120130-
/O.CON.KLWX.GL.W.0036.000000T0000Z-211212T0600Z/
Chesapeake Bay north of Pooles Island MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Patapsco River including Baltimore Harbor-
Patuxent River to Broomes Island MD-
1230 PM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST SUNDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 45 kt.

* WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD, 
  Patapsco River including Baltimore Harbor, Patuxent River to 
  Broomes Island MD, and Chesapeake Bay north of Pooles Island 
  MD.

* WHEN...Until 1 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

509 
WHUS71 KLWX 111826
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
126 PM EST Sat Dec 11 2021

ANZ530-535-536-538-542-120230-
/O.EXT.KLWX.GL.W.0036.000000T0000Z-211212T1100Z/
/O.NEW.KLWX.SC.Y.0254.211212T1100Z-211212T2100Z/
Chesapeake Bay north of Pooles Island MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Patapsco River including Baltimore Harbor-
Patuxent River to Broomes Island MD-
126 PM EST Sat Dec 11 2021

...GALE WARNING NOW IN EFFECT UNTIL 6 AM EST SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO 4 PM EST SUNDAY...

* WHAT...South winds 15 to 20 kt with occasional gusts to 35 kt 
  mainly over the near shore waters through late afternoon. A 
  shift to the west and northwest is expected this evening; winds 
  are expected to increase to 20 to 30 kt with gusts up to 45 kt 
  and waves of 2 to 4 feet following the wind shift. For the Small
  Craft Advisory, northwest winds 10 to 15 kt with gusts up to 25
  kt expected.

* WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD, 
  Chesapeake Bay north of Pooles Island MD, Patapsco River 
  including Baltimore Harbor, and Patuxent River to Broomes 
  Island MD.

* WHEN...For the Gale Warning, until 6 AM EST Sunday. For the 
  Small Craft Advisory, from 6 AM to 4 PM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ531>534-537-539>541-543-120230-
/O.CON.KLWX.GL.W.0036.000000T0000Z-211212T1100Z/
/O.NEW.KLWX.SC.Y.0254.211212T1100Z-211212T2100Z/
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
126 PM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO 4 PM EST SUNDAY...

* WHAT...South winds 15 to 25 kt with occasional gusts to 35 kt
  mainly over the near shore waters through late afternoon. A
  shift to the west and northwest is expected this evening; winds
  are expected to increase to 20 to 30 kt with gusts up to 45 kt
  and waves of 2 to 4 feet following the wind shift. For the Small 
  Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 
  kt and waves 2 to 4 ft expected.

* WHERE...Chesapeake Bay from Pooles Island MD to Smith Point 
  VA, Tidal Potomac from Cobb Island MD to Smith Point VA, 
  Chester River to Queenstown MD, Eastern Bay, Choptank River to 
  Cambridge MD and the Little Choptank River, and Tangier Sound 
  and the inland waters surrounding Bloodsworth Island.

* WHEN...For the Gale Warning, until 6 AM EST Sunday. For the 
  Small Craft Advisory, from 6 AM to 4 PM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  8 PM and midnight Saturday evening. Brief gusts to storm force 
  are possible during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

147 
WHUS71 KLWX 120232
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
932 PM EST Sat Dec 11 2021

ANZ530>543-121045-
/O.CON.KLWX.GL.W.0036.000000T0000Z-211212T1100Z/
/O.CON.KLWX.SC.Y.0254.211212T1100Z-211212T2100Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
932 PM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST SUNDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM TO 4 PM EST
SUNDAY...

* WHAT...West northwest winds 20 to 30 kt with gusts up to 45 kt
  and waves of 2 to 4 feet. For the Small Craft Advisory,
  northwest winds 15 to 20 kt with gusts up to 30 kt and waves 2 
  to 4 ft expected.

* WHERE...Chesapeake Bay from Pooles Island MD to Smith Point 
  VA, Tidal Potomac from Cobb Island MD to Smith Point VA, 
  Chester River to Queenstown MD, Eastern Bay, Choptank River to 
  Cambridge MD and the Little Choptank River, and Tangier Sound 
  and the inland waters surrounding Bloodsworth Island.

* WHEN...For the Gale Warning, until 6 AM EST Sunday. For the 
  Small Craft Advisory, from 6 AM to 4 PM EST Sunday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels.

* ADDITIONAL DETAILS...The strongest winds are expected through 
  midnight this evening. Brief gusts to storm force are possible 
  during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

305 
WHUS71 KLWX 120953
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
453 AM EST Sun Dec 12 2021

ANZ530>543-121800-
/O.CAN.KLWX.GL.W.0036.000000T0000Z-211212T1100Z/
/O.EXT.KLWX.SC.Y.0254.211212T0953Z-211212T2100Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
453 AM EST Sun Dec 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...
...GALE WARNING IS CANCELLED...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt.

* WHERE...Tidal Potomac River from Key Bridge to Smith Point VA, 
  and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The strongest winds are expected through 
  midnight this evening. Brief gusts to storm force are possible 
  during this time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
855 PM EST Thu Dec 9 2021

.SYNOPSIS...
A warm front will lift into the region through midday Friday,
then dissipate as a second stronger warm front developing near
the Gulf Coast lifts northward through Saturday morning. A
strong cold front is expected to cross the area Saturday
evening. High pressure is then expected to build across the
eastern United States for much of next week.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Surface analysis as of mid evening showed a warm front snaking
southeastward from an area of low pressure centered over Lake
Michigan to the central Appalachian Mountains. A stationary
front was draped across the northeastern Gulf Coast. High
pressure was retreating off the New England coast. Aloft,
largely zonal flow was evident between troughing over the Rocky
Mountains and an upper-level low near the Canadian Maritimes.

Low pressure over Lake Michigan is slated to move across lower
Michigan tonight; its attendant warm front will lift
northeastward into the Middle Atlantic. It is likely to be in a
weakening state as it runs into the retreating high near the
New England coast. Any lift associated with this warm front and
a sheared out shortwave aloft is expected to be weak. Most, if
any, precipitation is expected to be limited to along and west
of the Allegheny Front. Even there, the chance for measurable
precipitation is low. Temperatures may be just cold enough to
support a light wintry mix through around or just after midnight
before temperatures warm ahead of the approaching warm front,
but considering the anticipated marginal temperatures and how
low the potential is for precipitation to occur, left any
mention of wintry precipitation out of the forecast.

As implied above, low temperatures will likely be achieved by
around midnight as mid and high level clouds thicken and the
warm front lifts into the region. Temperatures should get down
to around or several degrees below freezing for most areas
outside the major cities and away from larger bodies of water,
though there could be (1) a somewhat milder swath across the
valleys of eastern West Virginia into central Maryland and
northern Virginia under relatively thicker cloud cover, and (2)
some spots that get a little colder under notable clear slots on
satellite this evening across the central Virginia Piedmont and
northern Maryland.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
The warm front should become ill-defined as it approaches the
Potomac River Friday morning. The aforementioned stationary
front near the Gulf Coast will then become the primary warm
front as it lifts northeastward up the Appalachian Mountains
through Friday night. Warming temperatures and increasing cloud
cover are expected as a result.

The most impactful weather event for the next seven days will
occur on Saturday. A positively tilted upper-level trough axis
over the Plains will move eastward into our region on Saturday.
The latest guidance has become notably flatter and more sheared
out with this trough, though it is still expected to be
accompanied by an impressive wind field. An upper jet will
become situated southwest to northeast along the Eastern
Seaboard on Saturday. A strong cold front attendant to low
pressure moving from the Midwest into Canada will approach from
the Ohio River Valley Saturday, then move through the region
Saturday evening. The mid to upper jet is still progged to be
100/150 kt at 500/300 mb, with a low level jet of 50-65 kt. The
strongest low level winds are expected ahead of the cold front
in the warm sector and are unlikely to mix down 100 percent,
though very breezy conditions are still expected with gusts of
25 to 40 mph most likely (higher along the ridges).

The continued warm air advection ahead of the cold front will
lead to afternoon temperatures peaking in the low to mid 70s
with dewpoints in the low 60s. This will likely lead to CAPE
values in the 150 to 300 J/kg range. Ahead of the frontal
passage, the strong wind field aloft may lead to effective shear
of about 50 knots. The combination of high shear and low CAPE
could lead to an environment favorable for a band of showers or
perhaps even a few thunderstorms capable of bringing some of
the stronger winds aloft to the surface. At the moment, it looks
like the main threat for damaging winds associated with any
band(s) of pre-frontal convective activity will be mid to late
Saturday afternoon (Allegheny Front to I-81 corridor) into
Saturday evening (Blue Ridge to the Chesapeake Bay vicinity).

Guidance continues to taper expected rainfall amounts which
makes sense given the flatter trough and fast moving nature of
the front. Looking at guidance, it still seems the most likely
area for a convective line to organize will be east of the Blue
Ridge Mountains where higher quality low-level moisture is
expected to reside.

After the front crosses the region, the strong winds aloft are
more likely to mix to the surface along and behind the
boundary due to cold, dry advection and pressure rises. Although
the low-level wind field still looks strong, the latest guidance
has backed off some on the magnitude. Therefore, have held off
on any High Wind Watches for the time being.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
High pressure will be in control Sunday through Tuesday. Winds will
diminish with increasing sunshine on Sunday. Temperatures will be at
their coolest readings going into the extended forecast with highs
near 50 and lows in the middle 20s. As for Monday into Tuesday,
temperatures will modify a couple of degrees each day with high
pressure in control and plenty of sunshine. A weak backdoor cold
front over the eastern Great Lakes will nudge southward across
Pennsylvania late Tuesday, but should make it no further as
reinforcing high pressure takes over right on through Wednesday.
Temperatures will modify to nearly 7 to 10 degrees above normal for
mid-December. The extended forecast is expected to be dry.

&&

.AVIATION /01Z FRIDAY THROUGH TUESDAY/...
An increasing southerly flow through Friday will lead to
increasing low level moisture that will likely bring MVFR
conditions to all terminals by late Friday afternoon or evening.
LLWS is possible tonight as a LLJ increases, but looks too
marginal and intermittent for inclusion in the TAFs for now.
LLWS is more likely Friday night.

A strong cold front on Saturday is expected bring strong
southerly to southwesterly winds ahead of it with gusts of 20 to
35 knots likely. Terminals especially east of the Blue Ridge
Mountains may experience a convective line late Saturday
afternoon and evening. Gusts in excess of 40 kt are possible
with any such line, as well as in west to northwest flow behind
the front Saturday evening into the overnight.

VFR conditions are expected for the terminals Sunday through
Monday night. Winds northwest 10 knots gusting to 20 kts
Sunday, diminishing to light and variable Sunday night. Winds
becoming southwest 5 to 10 knots Monday and Monday night.

&&

.MARINE...
Southerly channeling is expected to result in a period of 20 to
25 kt gusts overnight through Saturday morning. There was enough
of an indication that a few hour period of 20 kt gusts is likely
even over the narrower waterways, so those are in the Small
Craft Advisory through Saturday morning as well.

A strong cold front will likely bring gale-force winds to all
waters Saturday afternoon and especially Saturday evening. Brief
storm force winds can't be ruled out briefly especially with
any showers along the front or just behind the front.

Small Craft Advisories will likely be needed Sunday morning due
to northwest winds gusting 20 to 25 knots. Winds should slowly
diminish Sunday afternoon and night and remain light through
Monday night.

&&

.TIDES/COASTAL FLOODING...
Water levels will begin to rise tonight as southerly winds
strengthen. There is the potential for minor coastal flooding
Saturday into Saturday evening in strong southerly winds ahead
of strong cold front.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Gale Watch from Saturday afternoon through Saturday evening
     for ANZ530>543.
     Small Craft Advisory from 11 PM this evening to noon EST
     Friday for ANZ530-531-534-535-538>543.
     Small Craft Advisory until noon EST Friday for ANZ532-533-536-
     537.

&&

SYNOPSIS...DHOF
NEAR TERM...DHOF
SHORT TERM...DHOF/JMG
LONG TERM...KLW
AVIATION...KLW/DHOF/JMG
MARINE...KLW/DHOF/JMG
TIDES/COASTAL FLOODING...LWX

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
1047 PM EST Thu Dec 9 2021

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ052>057-110400-
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-District of Columbia-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-
1047 PM EST Thu Dec 9 2021

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A line of storms capable of producing damaging winds and perhaps
an isolated tornado or waterspout is possible late Saturday
afternoon into Saturday evening.

Gusty winds behind a strong cold front may result in isolated
instances of wind damage Saturday evening and night.

A Gale Watch is in effect for the waters Saturday afternoon
through Saturday evening. There is a high chance of gale-force
winds, and brief winds of storm force cannot be ruled out.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508-
WVZ050>053-055-110400-
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta-
Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson-
Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Hampshire-Morgan-Berkeley-Jefferson-
Hardy-
1047 PM EST Thu Dec 9 2021

This Hazardous Weather Outlook is for portions of eastern West
Virginia, northern and central Virginia, and central and western
Maryland.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A line of storms capable of producing damaging winds is possible
Saturday afternoon into Saturday evening, mainly near and east of
the Blue Ridge Mountains.

Gusty winds behind a strong cold front may result in isolated
instances of wind damage Saturday evening and night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ001-501-502-VAZ503-504-WVZ501>506-110400-
Garrett-Extreme Western Allegany-Central and Eastern Allegany-
Western Highland-Eastern Highland-Western Grant-Eastern Grant-
Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
1047 PM EST Thu Dec 9 2021

This Hazardous Weather Outlook is for the Allegheny Front
counties in western Maryland, eastern West Virginia, and Highland
County Virginia.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Gusty winds associated with a strong cold front may lead to
isolated instances of wind damage Saturday afternoon and night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

DHOF