Small Craft Advisory 95, NWS Baltimore/Washington

565 
WHUS71 KLWX 290751
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
351 AM EDT Thu Apr 29 2021

ANZ537-291600-
/O.EXP.KLWX.SC.Y.0094.000000T0000Z-210429T0800Z/
/O.CON.KLWX.SC.Y.0095.210429T1600Z-210430T0000Z/
/O.EXA.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Tidal Potomac from Cobb Island MD to Smith Point VA-
351 AM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM
EDT THIS EVENING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM EDT EARLY THIS
MORNING...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 15 
  kt with gusts up to 20 kt expected. For the Gale Watch, 
  northwest winds 15 to 25 kt with gusts up to 40 kt and waves 2 
  to 4 ft possible.

* WHERE...Tidal Potomac from Cobb Island MD to Smith Point VA.

* WHEN...For the Small Craft Advisory, from noon today to 8 PM 
  EDT this evening. For the Gale Watch, from Friday morning 
  through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ534-543-291600-
/O.EXP.KLWX.SC.Y.0094.000000T0000Z-210429T0800Z/
/O.EXA.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
351 AM EDT Thu Apr 29 2021

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM EDT EARLY THIS
MORNING...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and 
  waves 2 to 4 ft possible.

* WHERE...Chesapeake Bay from Drum Point MD to Smith Point VA 
  and Tangier Sound and the inland waters surrounding 
  Bloodsworth Island.

* WHEN...From Friday morning through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ533-291600-
/O.EXP.KLWX.SC.Y.0094.000000T0000Z-210429T0800Z/
/O.CON.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Chesapeake Bay from North Beach to Drum Point MD-
351 AM EDT Thu Apr 29 2021

...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM EDT EARLY THIS
MORNING...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and 
  waves 2 to 4 ft possible.

* WHERE...Chesapeake Bay from North Beach to Drum Point MD.

* WHEN...From Friday morning through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530-531-535-538-539-291600-
/O.CON.KLWX.SC.Y.0095.210429T1600Z-210430T0000Z/
/O.CON.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-
351 AM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM
EDT THIS EVENING...
...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 15 
  kt with gusts up to 25 kt expected. For the Gale Watch, 
  northwest winds 15 to 25 kt with gusts up to 40 kt and waves 2 
  to 4 ft possible.

* WHERE...Chesapeake Bay north of Sandy Point MD, Chester River 
  to Queenstown MD, Patapsco River including Baltimore Harbor, 
  and Tidal Potomac from Key Bridge to Indian Head MD.

* WHEN...For the Small Craft Advisory, from noon today to 8 PM 
  EDT this evening. For the Gale Watch, from Friday morning 
  through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ536-542-291600-
/O.CON.KLWX.SC.Y.0095.210429T1600Z-210430T0000Z/
/O.EXA.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Tidal Potomac from Indian Head to Cobb Island MD-
Patuxent River to Broomes Island MD-
351 AM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM
EDT THIS EVENING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...

* WHAT...For the Small Craft Advisory, southwest winds 5 to 15 
  kt with gusts up to 25 kt expected. For the Gale Watch, 
  northwest winds 15 to 25 kt with gusts up to 35 kt possible.

* WHERE...Tidal Potomac from Indian Head to Cobb Island MD and 
  Patuxent River to Broomes Island MD.

* WHEN...For the Small Craft Advisory, from noon today to 8 PM 
  EDT this evening. For the Gale Watch, from Friday morning 
  through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ532-540-541-291600-
/O.CON.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Chesapeake Bay from Sandy Point to North Beach MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
351 AM EDT Thu Apr 29 2021

...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and 
  waves 2 to 4 ft possible.

* WHERE...Choptank River to Cambridge MD and the Little Choptank 
  River, Chesapeake Bay from Sandy Point to North Beach MD and 
  Eastern Bay.

* WHEN...From Friday morning through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

434 
WHUS71 KLWX 291027
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
627 AM EDT Thu Apr 29 2021

ANZ532>534-540-541-543-291830-
/O.EXB.KLWX.SC.Y.0095.210430T0000Z-210430T1000Z/
/O.CON.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
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-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
627 AM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 6 AM
EDT FRIDAY...
...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 20 
  kt with gusts up to 25 kt expected. For the Gale Watch, 
  northwest winds 15 to 25 kt with gusts up to 40 kt and waves 2 
  to 4 ft possible.

* WHERE...Chesapeake Bay from Sandy Point MD to Smith Point VA, 
  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 Small Craft Advisory, from 8 PM this evening to 
  6 AM EDT Friday. For the Gale Watch, from Friday morning 
  through late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530-531-535>539-542-291830-
/O.EXT.KLWX.SC.Y.0095.210429T1600Z-210430T1000Z/
/O.CON.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
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-
Patuxent River to Broomes Island MD-
627 AM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM NOON TODAY TO 6 AM EDT
FRIDAY...
...GALE WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...

* WHAT...For the Small Craft Advisory, southwest winds 10 to 15 
  kt with gusts up to 25 kt expected. For the Gale Watch, 
  northwest winds 15 to 25 kt with gusts up to 40 kt and waves 2 
  to 4 ft possible.

* WHERE...Chesapeake Bay north of Sandy Point MD, Chester River 
  to Queenstown MD, Patapsco River including Baltimore Harbor, 
  and Tidal Potomac from Key Bridge to Indian Head MD.

* WHEN...For the Small Craft Advisory, from noon today to 6 AM 
  EDT Friday. For the Gale Watch, from Friday morning through 
  late Friday night.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

837 
WHUS71 KLWX 291821
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
221 PM EDT Thu Apr 29 2021

ANZ530-531-535-538-539-300230-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.UPG.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
/O.NEW.KLWX.GL.W.0016.210430T1000Z-210430T2200Z/
/O.NEW.KLWX.SR.A.0001.210430T2200Z-210501T1000Z/
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Tidal Potomac from Key Bridge to Indian Head MD-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-
221 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING IN EFFECT FROM 6 AM TO 6 PM EDT FRIDAY...
...STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE FRIDAY
NIGHT...

* WHAT...Southwest winds of 10 to 15 knots with gusts up to 25
  knots are forecast through this evening, becoming northwest
  overnight. Winds are forecast to increase to 20 to 30 knots with
  gusts up to 45 knots Friday. Gusts to near 50 knots and waves 
  of 2 to 4 feet are possible Friday night.

* WHERE...Chesapeake Bay north of Sandy Point MD, Tidal Potomac 
  from Key Bridge to Indian Head MD, Patapsco River including 
  Baltimore Harbor, and Chester River to Queenstown MD.

* WHEN...For the Small Craft Advisory, until 6 AM EDT Friday. For
  the Gale Warning, from 6 AM to 6 PM EDT Friday. For the Storm 
  Watch, from Friday evening through late Friday night.

* IMPACTS...Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ532-540-300230-
/O.EXT.KLWX.SC.Y.0095.210429T1821Z-210430T1000Z/
/O.UPG.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
/O.NEW.KLWX.GL.W.0016.210430T1000Z-210430T2200Z/
/O.NEW.KLWX.SR.A.0001.210430T2200Z-210501T1000Z/
Chesapeake Bay from Sandy Point to North Beach MD-Eastern Bay-
221 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING IN EFFECT FROM 6 AM TO 6 PM EDT FRIDAY...
...STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH LATE FRIDAY
NIGHT...

* WHAT...Southwest winds of 10 to 15 knots with gusts up to 25
  knots are forecast through this evening, becoming northwest
  overnight. Winds are forecast to increase to 20 to 30 knots with
  gusts up to 45 knots Friday, accompanied by waves of 2 to 4 feet.
  Gusts to near 50 knots and waves of 3 to 5 feet are possible 
  Friday night.

* WHERE...Chesapeake Bay from Sandy Point to North Beach MD and 
  Eastern Bay.

* WHEN...For the Small Craft Advisory, until 6 AM EDT Friday. For
  the Gale Warning, from 6 AM to 6 PM EDT Friday. For the Storm 
  Watch, from Friday evening through late Friday night.

* IMPACTS...Very strong winds will cause hazardous waves which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare to remain in port, alter course, and/or
secure the vessel for severe conditions before conditions
deteriorate.

&&

$$

ANZ536-537-542-300230-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.UPG.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
/O.NEW.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patuxent River to Broomes Island MD-
221 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM EDT SATURDAY...

* WHAT...Southwest winds of 10 to 15 knots with gusts up to 25
  knots are forecast through this evening, becoming northwest
  overnight. Winds are forecast to increase to 20 to 30 knots with
  gusts up to 45 knots Friday. Waves of 2 to 4 feet are possible.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Patuxent River to Broomes Island MD.

* WHEN...For the Small Craft Advisory, until 6 AM EDT Friday. For
  the Gale Warning, from 6 AM Friday to 6 AM EDT 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.

&&

$$

ANZ533-534-541-543-300230-
/O.EXT.KLWX.SC.Y.0095.210429T1821Z-210430T1000Z/
/O.UPG.KLWX.GL.A.0002.210430T1000Z-210501T1000Z/
/O.NEW.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Choptank River to Cambridge MD and the Little Choptank River-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
221 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM EDT SATURDAY...

* WHAT...Southwest winds of 10 to 15 knots with gusts up to 25
  knots are forecast through this evening, becoming northwest
  overnight. Winds are forecast to increase to 20 to 30 knots with
  gusts up to 45 knots Friday, accompanied by waves of 3 to 6 
  feet.

* WHERE...Chesapeake Bay from North Beach MD to Smith Point VA, 
  Choptank River to Cambridge MD and the Little Choptank River, 
  and Tangier Sound and the inland waters surrounding 
  Bloodsworth Island.

* WHEN...For the Small Craft Advisory, until 6 AM EDT Friday. For
  the Gale Warning, from 6 AM Friday to 6 AM EDT 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.

&&

$$

DHOF

981 
WHUS71 KLWX 300036
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
836 PM EDT Thu Apr 29 2021

ANZ535-300845-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.EXT.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
/O.CAN.KLWX.SR.A.0001.210430T2200Z-210501T1000Z/
Tidal Potomac from Key Bridge to Indian Head MD-
836 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING NOW IN EFFECT FROM 6 AM FRIDAY TO 6 AM EDT
SATURDAY...
...STORM WATCH IS CANCELLED...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 45 kt expected. For the Small Craft Advisory, west 
  winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac from Key Bridge to Indian Head MD.

* WHEN...For the Gale Warning, from 6 AM Friday to 6 AM EDT 
  Saturday. For the Small Craft Advisory, until 6 AM EDT Friday.

* 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.

&&

$$

ANZ530>532-538>540-300845-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.UPG.KLWX.GL.W.0016.210430T1000Z-210430T2200Z/
/O.UPG.KLWX.SR.A.0001.210430T2200Z-210501T1000Z/
/O.NEW.KLWX.SR.W.0001.210430T1000Z-210501T1000Z/
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-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
836 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY...
...STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM EDT
SATURDAY...

* WHAT...For the Storm Warning, northwest winds 20 to 30 kt with 
  gusts up to 50 kt and waves 2 to 4 ft expected. For the Small 
  Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Chesapeake Bay north of North Beach MD, Patapsco River 
  including Baltimore Harbor, Chester River to Queenstown MD, 
  and Eastern Bay.

* WHEN...For the Storm Warning, from 6 AM Friday to 6 AM EDT 
  Saturday. For the Small Craft Advisory, until 6 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ533-534-536-537-541>543-300845-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.CON.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
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-
836 PM EDT Thu Apr 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT FRIDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM FRIDAY TO 6 AM EDT
SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 45 kt and waves 3 to 6 ft expected. For the Small 
  Craft Advisory, southwest winds 10 to 20 kt with gusts up to 
  25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, Chesapeake Bay from North Beach MD to Smith Point VA, 
  Patuxent River to Broomes Island MD, Tangier Sound and the 
  inland waters surrounding Bloodsworth Island, and Choptank 
  River to Cambridge MD and the Little Choptank River.

* WHEN...For the Gale Warning, from 6 AM Friday to 6 AM EDT 
  Saturday. For the Small Craft Advisory, until 6 AM EDT Friday.

* 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.

&&

$$

003 
WHUS71 KLWX 300528
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
128 AM EDT Fri Apr 30 2021

ANZ533>537-541>543-301600-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.CON.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
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-
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-
128 AM EDT Fri Apr 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 6 AM
EDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 45 kt and waves 3 to 6 ft expected. For the Small 
  Craft Advisory, southwest winds 10 to 20 kt with gusts up to 
  25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, Chesapeake Bay from North Beach MD to Smith Point VA, 
  Patuxent River to Broomes Island MD, Tangier Sound and the 
  inland waters surrounding Bloodsworth Island, and Choptank 
  River to Cambridge MD and the Little Choptank River.

* WHEN...For the Gale Warning, from 6 AM Friday to 6 AM EDT 
  Saturday. For the Small Craft Advisory, until 6 AM EDT Friday.

* 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.

&&

$$

ANZ530>532-538>540-301600-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.CON.KLWX.SR.W.0001.210430T1000Z-210501T1000Z/
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-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
128 AM EDT Fri Apr 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...STORM WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 6 AM
EDT SATURDAY...

* WHAT...For the Storm Warning, northwest winds 20 to 30 kt with 
  gusts up to 50 kt and waves 2 to 4 ft expected. For the Small 
  Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Chesapeake Bay north of North Beach MD, Patapsco River 
  including Baltimore Harbor, Chester River to Queenstown MD, 
  and Eastern Bay.

* WHEN...For the Storm Warning, from 6 AM Friday to 6 AM EDT 
  Saturday. For the Small Craft Advisory, until 6 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

651 
WHUS71 KLWX 300742
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
342 AM EDT Fri Apr 30 2021

ANZ533-541-542-301545-
/O.CAN.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.EXT.KLWX.GL.W.0016.210430T0742Z-210501T1000Z/
Chesapeake Bay from North Beach to Drum Point MD-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
342 AM EDT Fri Apr 30 2021

...GALE WARNING NOW IN EFFECT UNTIL 6 AM EDT SATURDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

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

* WHERE...Patuxent River to Broomes Island MD, Choptank River to 
  Cambridge MD and the Little Choptank River and Chesapeake Bay 
  from North Beach to Drum Point MD.

* WHEN...Until 6 AM EDT 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.

&&

$$

ANZ530>532-538>540-301545-
/O.CAN.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.EXT.KLWX.SR.W.0001.210430T0742Z-210501T1000Z/
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-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
342 AM EDT Fri Apr 30 2021

...STORM WARNING NOW IN EFFECT UNTIL 6 AM EDT SATURDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 50 kt.

* WHERE...Chesapeake Bay north of North Beach MD, Chester River 
  to Queenstown MD, Patapsco River including Baltimore Harbor, 
  and Eastern Bay.

* WHEN...Until 6 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ534>537-543-301545-
/O.CON.KLWX.SC.Y.0095.000000T0000Z-210430T1000Z/
/O.CON.KLWX.GL.W.0016.210430T1000Z-210501T1000Z/
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-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
342 AM EDT Fri Apr 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 45 kt expected. For the Small Craft Advisory, west 
  winds 10 to 20 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac River from Key Bridge to Smith Point VA, 
  Tangier Sound and the inland waters surrounding Bloodsworth 
  Island, and Chesapeake Bay from Drum Point MD to Smith Point 
  VA.

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

* 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.

&&

$$

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
301 PM EDT Wed Apr 28 2021

.SYNOPSIS...
A Bermuda high will continue to shift farther offshore
through Thursday, which will allow a cold front to approach the
region. The front will cross the area Thursday night, then high
pressure will gradually build back into the region for the
weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
High pressure is located off the southeast coast today with a
cold front stretching across the Great Lakes. Temperature are
well above normal and approaching records (see climate section
below).

Forecast soundings suggest that we remain capped most of the
afternoon. However, at least some instability should build
thanks to moderate mid level lapse rates. If this cap can break,
we could have a few showers and storms late this afternoon and
evening, mainly over the Appalachians and in a pressure trough
east of the Blue Ridge to the I-95 corridor. Given weak forcing,
potential for too much dry low level air, and relatively weak
shear, am not expecting coverage or intensity to be too great at
this time. If a stronger shower or storm were to develop,
however, it could produce gusty winds given an inverted-V
boundary layer. Will need to keep an eye on upstream activity
in the Ohio Valley/PA moving toward our area this evening as
well, but most models keep these storms away from our region.

A vort max approaching from the west tonight could spawn some
additional showers, mainly along the Mason-Dixon region and
Appalachians. Low temperatures will stay very mild tonight
thanks to clouds, a light south wind, and higher dewpoints in
the 50s-60s.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
By Thursday, the front will have stalled just to our north
across Pennsylvania and Ohio. There will be plenty of moisture
and convergence along the frontal zone, so showers should be
ongoing. The biggest question is just how far south into our
area showers will impact the morning hours: highest chances near
the Pennsylvania border, with dry conditions likely across
central Virginia/southern Maryland. An upper level trough will
dive southeastward across the Midwest during the afternoon and
evening, causing low pressure to develop along the front and
eventually push the front southeastward across the area.
Precipitation may still largely be limited to northern and
western areas through the afternoon and early evening. With the
upper level trough approaching, wind fields will increase, but
instability will be inhibited by ongoing showers, cloud cover,
and poor lapse rates. However, some gusty/organized showers and
embedded storms could develop as forcing increases late in the
day, which is highlighted by a Marginal severe weather risk from
SPC. The other issue to watch will be the potential for locally
heavy rain due to the stalled front, training precipitation, and
unseasonably high precipitable water values. At this time, the
highest rain totals are expected north and west of our CWA. High
temperatures will stay in the 70s across northwestern areas,
but temperatures should be able to push into the mid 80s again
near and south of DC where clouds aren't as thick.

The cold front will push across the area Thursday night. Showers
and storms may tend to fall apart with the loss of daytime
heating, but at least some showers will be possible across the
entire area.

On Friday, strengthening low pressure will be moving across New
England, while strong high pressure builds across the Midwest
behind the departing cold front. This will result in strong
northwest winds potentially reaching Wind Advisory criteria,
especially across northern/western areas. There remains some
uncertainty in the strength of the low level wind fields, as
well as whether the strongest winds will overlap the deepest
diurnal mixing (two surges: post frontal early in the morning,
and with a vort max/secondary front during the late
afternoon/evening). Winds could remain elevated through the
night.

Most areas will be dry by Friday, although there could be some
upslope rain showers along the Allegheny Front, as well as an
isolated shower near the Pennsylvania border as the upper trough
crosses the area. Temperatures will return closer to normal.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...
Guidance continues to depict a split flow regime across the CONUS
with a deep trough exiting New England Saturday. A somewhat deeper
trend has been noted with this trough over the last few model
cycles. There is some lingering uncertainty with the fate of an
upper low in the southern stream and its ejection across the lower
MS Valley late in the weekend into early next week, but locally most
sensible weather will be reliant on the more closely positioned
northern stream this weekend.

Noticeably cooler temperatures and blustery conditions are forecast
Saturday in the wake of a surface cold front attendant to the
aforementioned upper trough exiting New England. A warming trend is
anticipated Sunday into Monday as high pressure building in behind
the front shifts offshore.

By early next week, the upper low moving across the lower MS Valley
begins to drift back into phase with the northern stream. At the
surface, a sprawling frontal zone will likely arc from the Northeast
across the Midwest and into the Plains. As the front slowly presses
southeastward, multiple waves riding along it will spark shower and
thunderstorm chances. Given increasing heat, humidity, and shear
overlaying the approaching frontal zone, thunderstorms that develop
could become severe, especially if the waves forcing the storms
cross around peak heating. Uncertainty remains, though, given at
least part of this setup will be reliant on the ejection of an upper
low, something that models often struggle with in the medium
range.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
VFR conditions continue with southwesterly winds through tonight.
A few gusts to around 20 kt are possible this afternoon. While
conditions are expected to remain mostly dry, there's a slight
(~20%) chance of a shower or thunderstorm generally between
22-03Z this evening. Did not have the confidence to include that
in the TAFs due to weak atmospheric triggers. A few additional
showers could occur late tonight with the greatest chance at
MRB. However, coverage/confidence is not high enough to include
a mention in the TAF yet.

A cold front will approach Thursday and cross Thursday night.
Gusty southwest winds will pick back up during the day. It's
questionable how far south and showers or isolated thunderstorms
get during the day, with the highest chances at MRB (including a
period of MVFR ceilings). The metro area terminals will have
the highest rain and possible thunder chances during the
evening, but by this time, coverage may be more scattered. A
brief period of MVFR ceilings could occur, but confidence is
low.

Winds will become northwesterly behind the front, and gusts
could reach 30-40 kt Friday into Friday evening.

Mainly VFR expected this weekend. NW wind gusts of 20-30 kt psbl
Sat.

&&

.MARINE...
Southwesterly winds will continue through Thursday due to high
pressure off the southeast coast. An SCA remains in effect for
all waters this afternoon and evening, but it's marginal due to
very warm air over the cooler waters. A stray shower or
thunderstorm could also approach the waters this evening,
which could cause some gusty conditions. SCA conditions could
linger a good part of the night on the wide waters of the mid
Bay, so extended this SCA in this area.

Small Craft Advisory conditions may be a little more common
Thursday, but mixing issues will continue, with the highest
gusts more likely near land. A cold front will cross the waters
Thursday night. Showers and a few thunderstorms will be
possible along the front. SCA conditions will also likely
continue, especially after winds shift to the northwest. Two
surges of strong winds are expected: one early Friday morning
behind the front, and another late Friday afternoon/evening
behind a secondary front. At least brief gale force winds are
possible, so have hoisted a Gale Watch for a large portion of
the waters. Have held off for the southern Maryland waters for
now since winds may not increase until Friday evening and may be
marginal. Elevated winds likely continue through Friday night.

A gusty northwesterly wind will likely persist through at least the
first half of Saturday behind a departing cold front. The wind
should abate Saturday night as high pressure moves across, then may
increase a bit again late in the weekend as the high moves
offshore.

&&

.TIDES/COASTAL FLOODING...
A southerly flow will keep water levels elevated through
Thursday. Minor tidal flooding is possible in sensitive areas
like DC SW Waterfront and the Upper Chesapeake Bay, but
caution/sub-flood levels look more likely. Water levels will
decrease for the end of the week behind a strong cold front.

&&

.CLIMATE...
Records for today/Thursday across the area climate sites:

TODAY'S HIGHS
DCA: 92 (1957)
IAD: 88 (1990)
BWI: 90 (1957)

THURSDAY MORNING LOWS
DCA: 70 (2017)
IAD: 65 (2017)
BWI: 67 (2017)

THURSDAY HIGHS
DCA: 91 (2017)
IAD: 89 (2017)
BWI: 91 (1974)

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Gale Watch from Friday morning through late Friday night for
     ANZ530>533-535-538>541.
     Small Craft Advisory until 9 PM EDT this evening for
     ANZ530>533-535>542.
     Small Craft Advisory until 2 AM EDT Thursday for ANZ534-543.

&&

SYNOPSIS...ADS
NEAR TERM...ADS
SHORT TERM...ADS
LONG TERM...DHOF
AVIATION...ADS/DHOF
MARINE...ADS/DHOF
TIDES/COASTAL FLOODING...ADS
CLIMATE...LWX

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
723 PM EDT Wed Apr 28 2021

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ052>057-291000-
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-
723 PM EDT Wed Apr 28 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...Thursday through Tuesday

A Gale Watch is in effect for portions of the tidal waters Friday
and Friday night.

Wind Advisories may be required for Friday into Friday night as a
strong cold front moves through.

.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>053-055-291000-
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-
723 PM EDT Wed Apr 28 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...Thursday through Tuesday

Wind Advisories may be required for Friday into Friday night as a
strong cold front moves through.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ001-501-502-VAZ503-504-WVZ501>506-291000-
Garrett-Extreme Western Allegany-Central and Eastern Allegany-
Western Highland-Eastern Highland-Western Grant-Eastern Grant-
Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
723 PM EDT Wed Apr 28 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...Thursday through Tuesday

Wind Advisories may be required for Friday into Friday night as a
strong cold front moves through.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.