Small Craft Advisory 80, NWS Baltimore/Washington

514 
WHUS71 KLWX 150132
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
932 PM EDT Wed Apr 14 2021

ANZ531>534-537-539>541-543-150945-
/O.CAN.KLWX.SC.Y.0079.000000T0000Z-210415T0600Z/
/O.CON.KLWX.SC.Y.0080.210415T1800Z-210416T1100Z/
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-
932 PM EDT Wed Apr 14 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THURSDAY TO
7 AM EDT FRIDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Northwest winds 5 to 15 kt with gusts up to 25 kt 
  expected.

* 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...From 2 PM Thursday to 7 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530-535-536-538-542-150945-
/O.CON.KLWX.SC.Y.0080.210415T1800Z-210416T1100Z/
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-
932 PM EDT Wed Apr 14 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THURSDAY TO
7 AM EDT FRIDAY...

* WHAT...Northwest winds 5 to 10 kt with gusts up to 20 kt 
  expected.

* 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...From 2 PM Thursday to 7 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

718 
WHUS71 KLWX 150715
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
315 AM EDT Thu Apr 15 2021

ANZ535-151515-
/O.EXT.KLWX.SC.Y.0080.210415T1800Z-210416T0200Z/
/O.NEW.KLWX.SC.Y.0081.210416T1300Z-210416T2200Z/
Tidal Potomac from Key Bridge to Indian Head MD-
315 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO
10 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TO 6 PM EDT FRIDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 10 
  to 15 kt with gusts up to 25 kt expected. For the second Small 
  Craft Advisory, west winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...For the Small Craft Advisory, from 2 PM this afternoon 
  to 10 PM EDT this evening. For the Small Craft Advisory, from 
  9 AM to 6 PM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530>534-536>543-151515-
/O.EXT.KLWX.SC.Y.0080.210415T1800Z-210416T2200Z/
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 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-
315 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 PM EDT FRIDAY...

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

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...From 2 PM this afternoon to 6 PM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

449 
WHUS71 KLWX 151512
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1112 AM EDT Thu Apr 15 2021

ANZ535-152315-
/O.EXT.KLWX.SC.Y.0080.210415T1512Z-210416T0200Z/
/O.CON.KLWX.SC.Y.0081.210416T1300Z-210416T2200Z/
Tidal Potomac from Key Bridge to Indian Head MD-
1112 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 6 PM EDT
FRIDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 10 to
  15 kt with gusts up to 25 kt. For the second 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 first Small Craft Advisory, until 10 PM EDT this
  evening. For the second Small Craft Advisory, from 9 AM to 6 PM
  EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is 
currently around 60 degrees.

&&

$$

ANZ530>534-536>543-152315-
/O.EXT.KLWX.SC.Y.0080.210415T1512Z-210416T2200Z/
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 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-
1112 AM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT FRIDAY...

* WHAT...Northwest winds 15 kt with gusts to 25 kt through
  tonight, increasing Friday to 15 to 20 kt with gusts up to 30 
  kt. Waves 2 to 4 feet.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 6 PM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is 
currently in the 50s.

&&

$$

DHOF

151 
WHUS71 KLWX 152012
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
412 PM EDT Thu Apr 15 2021

ANZ535-161030-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210416T0200Z/
/O.CON.KLWX.SC.Y.0081.210416T1300Z-210416T2200Z/
Tidal Potomac from Key Bridge to Indian Head MD-
412 PM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TO 6 PM EDT
FRIDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 10 
  to 15 kt with gusts up to 25 kt. For the second Small Craft 
  Advisory, west winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...For the Small Craft Advisory, until 10 PM EDT this 
  evening. For the Small Craft Advisory, from 9 AM to 6 PM EDT 
  Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530>534-536>543-161030-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210416T2200Z/
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 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-
412 PM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT FRIDAY...

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

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 6 PM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

655 
WHUS71 KLWX 160028
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
828 PM EDT Thu Apr 15 2021

ANZ535-161400-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210416T0200Z/
/O.EXT.KLWX.SC.Y.0081.210416T1300Z-210417T1100Z/
Tidal Potomac from Key Bridge to Indian Head MD-
828 PM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM FRIDAY TO 7 AM
EDT SATURDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 
  around 10 kt with gusts up to 25 kt. For the second Small 
  Craft Advisory, northwest winds 10 to 15 kt with gusts up to 
  25 kt expected.

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

* WHEN...For the Small Craft Advisory, until 10 PM EDT this 
  evening. For the Small Craft Advisory, from 9 AM Friday to 7 
  AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ530>534-536>543-161400-
/O.EXT.KLWX.SC.Y.0080.000000T0000Z-210417T1100Z/
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 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-
828 PM EDT Thu Apr 15 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EDT SATURDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

865 
WHUS71 KLWX 160523
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
123 AM EDT Fri Apr 16 2021

ANZ530>534-536>543-161330-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1100Z/
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 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-
123 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT
SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ535-161330-
/O.CON.KLWX.SC.Y.0081.210416T1300Z-210417T1100Z/
Tidal Potomac from Key Bridge to Indian Head MD-
123 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 7 AM EDT SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 9 AM this morning to 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

852 
WHUS71 KLWX 160825
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
425 AM EDT Fri Apr 16 2021

ANZ530>534-536>543-161630-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1100Z/
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 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-
425 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT
SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ535-161630-
/O.CON.KLWX.SC.Y.0081.210416T1300Z-210417T1100Z/
Tidal Potomac from Key Bridge to Indian Head MD-
425 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 7 AM EDT SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt 
  expected.

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

* WHEN...From 9 AM this morning to 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

037 
WHUS71 KLWX 161317
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
917 AM EDT Fri Apr 16 2021

ANZ530>534-536>543-162130-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1100Z/
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 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-
917 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT
SATURDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt. Waves
  2 to 4 feet.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is
currently in the 50s.

&&

$$

ANZ535-162130-
/O.CON.KLWX.SC.Y.0081.000000T0000Z-210417T1100Z/
Tidal Potomac from Key Bridge to Indian Head MD-
917 AM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT
SATURDAY...

* WHAT...Northwest winds around 15 kt with gusts up to 30 kt.

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

* WHEN...Until 7 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is
currently around 60.

&&

$$

DHOF

502 
WHUS71 KLWX 161605
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1205 PM EDT Fri Apr 16 2021

ANZ530>534-536>543-170015-
/O.EXT.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
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 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-
1205 PM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EDT SATURDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt. Waves
  2 to 4 feet over the open waters of the Chesapeake Bay.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 10 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is
currently in the 50s.

&&

$$

ANZ535-170015-
/O.EXT.KLWX.SC.Y.0081.000000T0000Z-210417T1400Z/
Tidal Potomac from Key Bridge to Indian Head MD-
1205 PM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EDT SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt.

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

* WHEN...Until 10 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Remain mindful of cold water temperatures. Rapid onset hypothermia
will occur in anyone who is exposed to the cold water, which is
currently around 60 degrees.

&&

$$

DHOF

002 
WHUS71 KLWX 162008
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
408 PM EDT Fri Apr 16 2021

ANZ530>534-536>543-170700-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
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 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-
408 PM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT
SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 30 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 10 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ535-170700-
/O.CON.KLWX.SC.Y.0081.000000T0000Z-210417T1400Z/
Tidal Potomac from Key Bridge to Indian Head MD-
408 PM EDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT
SATURDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt.

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

* WHEN...Until 10 AM EDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

961 
WHUS71 KLWX 170536
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
136 AM EDT Sat Apr 17 2021

ANZ530>534-536>543-171345-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
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 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-
136 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 10 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ535-171345-
/O.CON.KLWX.SC.Y.0081.000000T0000Z-210417T1400Z/
Tidal Potomac from Key Bridge to Indian Head MD-
136 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

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

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

* WHEN...Until 10 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

650 
WHUS71 KLWX 170808
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
408 AM EDT Sat Apr 17 2021

ANZ530>534-536>543-171400-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
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 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-
408 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt.

* WHERE...Tidal Potomac River from Indian Head MD to Smith Point 
  VA, and Chesapeake Bay and adjoining estuaries north of Smith 
  Point VA.

* WHEN...Until 10 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ535-171400-
/O.CON.KLWX.SC.Y.0081.000000T0000Z-210417T1400Z/
Tidal Potomac from Key Bridge to Indian Head MD-
408 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

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

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

* WHEN...Until 10 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

367 
WHUS71 KLWX 171242
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
842 AM EDT Sat Apr 17 2021

ANZ530>533-536>542-171345-
/O.CAN.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
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-
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-
842 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have diminished.

$$

ANZ535-171345-
/O.CAN.KLWX.SC.Y.0081.000000T0000Z-210417T1400Z/
Tidal Potomac from Key Bridge to Indian Head MD-
842 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have diminished.

$$

ANZ534-543-171400-
/O.CON.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
842 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 20 kt.

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

* WHEN...Until 10 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

679 
WHUS71 KLWX 171403
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1003 AM EDT Sat Apr 17 2021

ANZ534-543-171515-
/O.EXP.KLWX.SC.Y.0080.000000T0000Z-210417T1400Z/
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
1003 AM EDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds are diminishing. However, a few wind gusts up to 20 knots
will remain possible through 11 AM.

$$

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
315 PM EDT Wed Apr 14 2021

.SYNOPSIS...
Weak low pressure will pass to the south tonight as a second,
stronger area of low pressure moves from the upper Great Lakes into
the Northeast. The second low will drag a cold front west to east
across the Mid-Atlantic Thursday, then re-develop off the New
England coast as high pressure nudges in from the Ohio River Valley
Friday into Saturday. A broad area of low pressure will likely
traverse the East Coast during the second half of the weekend, then
another area of low pressure may approach around Tuesday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Light rain/showers are ongoing this afternoon across most of
the forecast area beneath a region of upper level diffluence.
The showers are helping to keep temperatures steady in the 50s.
Conditions are mostly dry across central Virginia, and locations
there may start to break out into some sunshine shortly. A
developing surface boundary is evident from central Virginia to
the Northern Neck, with clouds, showers, northerly winds, and
cooler temperatures to the north, and breaks of sun and
southerly winds to the south. As heating continues, limited
instability will build to the south of the boundary, with a few
hundred J/kg of CAPE expected by later this afternoon. Hi-res
guidance hints that a few storms may try to pop up in the
vicinity of a weak area of low pressure which is starting to
form along the aforementioned front. As a result, a passing
thunderstorm can't be ruled out across Nelson or Albemarle
Counties later this afternoon into this evening. With around 60
knots of 0-6 km shear present, any deep updraft would have the
potential to become supercellular, but instability will be a
limiting factor. If any stronger storms were to form, they could
be capable of producing damaging winds or hail. Further north,
just showers are expected within the more stable airmass

Shower activity is expected to wind down from west to east
tonight. Low clouds will hang around even after steady
precipitation moves out. Some patchy fog may be possible as
well, given a saturated lower atmosphere and weak winds at low
levels. Lows tonight will range from around 40 in the mountains,
to the mid 50s in the cities and along the bay.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
The large upper low currently over the Great Lakes will drop
southward toward our area by Thursday. At the surface, low
pressure will track off the coast, placing us in northwesterly
flow in its wake. The day will start out cloudy, but gradually
clearing skies are expected over the course of the day as
downslope flow kicks in and conditions start to dry out at low-
levels. Despite the northwesterly winds, there won't be much in
the way of cold advection, so mild temperatures are expected,
with highs mainly in the 60s. As the upper low progresses to the
east, a push of cold advection will surge in behind it during
the late afternoon and evening hours. As temperatures cool, any
upslope activity along the Allegheny Front will change over to
snow. Hi-res guidance hints that some heavier snow showers may
descend in northwesterly flow tomorrow evening and impact the
Allegheny Front. Some models even show the snow squall parameter
climbing above one tomorrow evening as limited surface based
instability develops. Temperatures will be a limiting factor for
snowfall accumulation, with most locations even in the higher
terrain staying just above freezing. For now, we're forecasting
around a coating to an inch of snow along the Allegheny Front
tomorrow night, but locally higher totals appear plausible if
heavier squalls were to form.

The upper low will linger to our north on Friday. Mostly dry
conditions are expected, but a stray shower can't be ruled out
as a weak disturbance rotates around the upper low. Highs on
Friday will range from the 40s in the mountains, to the lower
60s across southeastern portions of the forecast area.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...
Quasi-zonal flow is progged over the Mid-Atlantic between two upper
shortwave troughs/lows embedded within a larger cyclonic gyre/long
wave trough over eastern North America to start the weekend. Subtle
shortwave ridging between the two lows should lead to dry weather
and near or slightly below seasonable temperatures Saturday.

Warm advection ahead of and an impulse of upper-level energy
attendant to the western of the two aforementioned upper
lows/troughs (approaching from the Midwest) heightens the chances of
shower activity Saturday night into Sunday. A trailing jet
streak/vort max may cause shower potential to linger Sunday, though
there may be a relative lull in between. Overall, precipitation
looks lighter and more intermittent with a complete washout unlikely.

Uncertainty is still moderate to high heading into the first half of
next week. Another trough is slated to approach from the west
sometime between Monday night and Wednesday, but its precise timing
and position vary from model to model and run to run.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
Showers have overspread most of the terminals this afternoon.
These showers will last through the first half of the overnight
hours. Ceilings are starting to lower, with conditions expected
to deteriorate to sub-VFR by this evening. LIFR ceilings and
some patchy fog may even be possible at some terminals during
the second half of the overnight hours. Conditions will
gradually improve through the morning tomorrow, with VFR
conditions by mid-morning at most of the terminals. Gusty
northwest winds and VFR conditions are expected tomorrow
afternoon through Friday.

-SHRA/SubVFR pds psbl Sat night-Sun.

&&

.MARINE...
Low-end SCA conditions appear likely this evening over the
lower and middle Chesapeake Bay and lower Potomac River. A more
widespread and prolonged SCA event is expected Thursday night
through Friday.

A generally weak gradient and light wind is forecast over the waters
this weekend into early next week, though some shower activity is
possible Saturday night through Sunday as broad/weak low pressure
crosses the region.

&&

.TIDES/COASTAL FLOODING...
Tidal anomalies are expected to remain elevated through early
Thursday before the wind turns more northwesterly. Minor flooding is
possible prior to that wind shift, particularly with the higher of
the two astronomical tides late tonight into Thursday morning.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...None.
MD...None.
VA...None.
WV...None.
MARINE...Small Craft Advisory from 6 PM this evening to 2 AM EDT
     Thursday for ANZ531>534-537-539>541-543.

&&

SYNOPSIS...DHOF
NEAR TERM...KJP
SHORT TERM...KJP
LONG TERM...DHOF
AVIATION...DHOF/KJP
MARINE...DHOF/KJP
TIDES/COASTAL FLOODING...DHOF

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
510 AM EDT Wed Apr 14 2021

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ052>057-151000-
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-
510 AM EDT Wed Apr 14 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...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.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>053-055-151000-
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-
510 AM EDT Wed Apr 14 2021

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ001-501-502-VAZ503-504-WVZ501>506-151000-
Garrett-Extreme Western Allegany-Central and Eastern Allegany-
Western Highland-Eastern Highland-Western Grant-Eastern Grant-
Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
510 AM EDT Wed Apr 14 2021

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.