Small Craft Advisory 43, NWS Honolulu, HI

584 
WHHW70 PHFO 160907
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
1107 PM HST Wed Sep 15 2021

PHZ116-170115-
/O.EXA.PHFO.SC.Y.0043.210916T1000Z-210917T0400Z/
Kaiwi Channel-
1107 PM HST Wed Sep 15 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM HST THURSDAY...

* WHAT...East to southeast winds up to 25 kt.

* WHERE...Kaiwi Channel.

* WHEN...From midnight tonight to 6 PM HST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ120-121-123-124-170115-
/O.CON.PHFO.SC.Y.0043.210916T1000Z-210918T1600Z/
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-
Big Island Southeast Waters-
1107 PM HST Wed Sep 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST
SATURDAY...

* WHAT...East winds up to 25 kt.

* WHERE...Pailolo Channel, Alenuihaha Channel, Big Island 
  Leeward Waters and Big Island Southeast Waters.

* WHEN...From midnight tonight to 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ117-122-170115-
/O.CON.PHFO.SC.Y.0043.210916T1000Z-210917T0400Z/
Maui County Windward Waters-Big Island Windward Waters-
1107 PM HST Wed Sep 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST
THURSDAY...

* WHAT...East to southeast winds up to 25 kt.

* WHERE...Maui County Windward Waters and Big Island Windward 
  Waters.

* WHEN...From midnight tonight to 6 PM HST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ119-170115-
/O.CON.PHFO.SC.Y.0043.210917T0400Z-210918T1600Z/
Maalaea Bay-
1107 PM HST Wed Sep 15 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THURSDAY TO
6 AM HST SATURDAY...

* WHAT...North winds up to 25 kt.

* WHERE...Maalaea Bay.

* WHEN...From 6 PM Thursday to 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

398 
WHHW70 PHFO 161349
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
349 AM HST Thu Sep 16 2021

PHZ118-170300-
/O.EXA.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Maui County Leeward Waters-
349 AM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM HST SATURDAY...

* WHAT...East winds up to 25 kt.

* WHERE...Maui County Leeward Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ116-117-170300-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kaiwi Channel-Maui County Windward Waters-
349 AM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST SATURDAY...

* WHAT...East winds up to 25 kt.

* WHERE...Kaiwi Channel.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ120-121-123-124-170300-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-
Big Island Southeast Waters-
349 AM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST
SATURDAY...

* WHAT...East winds 20 to 30 kt.

* WHERE...Pailolo Channel, Alenuihaha Channel, Big Island 
  Leeward Waters and Big Island Southeast Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ122-170300-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210917T0400Z/
Big Island Windward Waters-
349 AM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING...

* WHAT...East winds up to 25 kt.

* WHERE...Maui County Windward Waters and Big Island Windward 
  Waters.

* WHEN...Until 6 PM HST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ119-170300-
/O.CON.PHFO.SC.Y.0043.210917T0400Z-210918T1600Z/
Maalaea Bay-
349 AM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM HST SATURDAY...

* WHAT...North winds up to 25 kt.

* WHERE...Maalaea Bay.

* WHEN...From 6 PM today to 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

885 
WHHW70 PHFO 170116
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
316 PM HST Thu Sep 16 2021

PHZ122-170230-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210917T0400Z/
Big Island Windward Waters-
316 PM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have dropped below advisory thresholds.

$$

PHZ119-171430-
/O.EXT.PHFO.SC.Y.0043.210917T0116Z-210918T1600Z/
Maalaea Bay-
316 PM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST SATURDAY...

* WHAT...North winds up to 25 kt.

* WHERE...Maalaea Bay.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ116>118-120-121-123-124-171430-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kaiwi Channel-Maui County Windward Waters-
Maui County Leeward Waters-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
316 PM HST Thu Sep 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST
SATURDAY...

* WHAT...East winds 20 to 30 kt.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters, Maui County Leeward 
  Waters, Kaiwi Channel and Maui County Windward Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

677 
WHHW70 PHFO 171330
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
330 AM HST Fri Sep 17 2021

PHZ110>115-122-180230-
/O.EXA.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-
Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters-
Big Island Windward Waters-
330 AM HST Fri Sep 17 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM HST SATURDAY...

* WHAT...East winds to 25 kt.

* WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai 
  Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu 
  Leeward Waters and Big Island Windward Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ119>121-123-124-180230-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210919T1600Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
330 AM HST Fri Sep 17 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST SUNDAY...

* WHAT...East winds 25 to 30 kt except north to 25 kt in Maalaea
  Bay. 

* WHERE... Pailolo Channel, Maalaea Bay, Alenuihaha Channel, Big 
  Island Leeward Waters and Big Island Southeast Waters.

* WHEN...Until 6 AM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ116>118-180230-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kaiwi Channel-Maui County Windward Waters-
Maui County Leeward Waters-
330 AM HST Fri Sep 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST
SATURDAY...

* WHAT...East winds to 25 kt.

* WHERE...Kaiwi Channel, Maui County Windward Waters and Maui
  County Leeward Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

455 
WHHW70 PHFO 180143
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
343 PM HST Fri Sep 17 2021

PHZ119>121-123-124-181445-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210919T1600Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
343 PM HST Fri Sep 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST SUNDAY...

* WHAT...East winds 25 to 30 kt Alenuihaha Channel. East winds to
  25 kt elsewhere. 

* WHERE... Pailolo Channel, Maalaea Bay, Alenuihaha Channel, Big 
  Island Leeward Waters and Big Island Southeast Waters.

* WHEN...Until 6 AM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ110>118-122-181445-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-
Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters-
Kaiwi Channel-Maui County Windward Waters-
Maui County Leeward Waters-Big Island Windward Waters-
343 PM HST Fri Sep 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST
SATURDAY...

* WHAT...East winds 20 to 25 kt.

* WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai 
  Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu 
  Leeward Waters and Big Island Windward Waters.

* WHEN...Until 6 AM HST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

494 
WHHW70 PHFO 181310
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
310 AM HST Sat Sep 18 2021

PHZ111-114-122-181415-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210918T1600Z/
Kauai Windward Waters-Oahu Windward Waters-
Big Island Windward Waters-
310 AM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have fallen to below advisory criteria.

$$

PHZ119>121-123-124-190215-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210920T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
310 AM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST SUNDAY...

* WHAT...East winds up to 25 kt except north up to 25 kts in
  Maalaea Bay. 

* WHERE... Pailolo Channel, Maalaea Bay, Alenuihaha Channel, Big 
  Island Leeward Waters and Big Island Southeast Waters.

* WHEN...Until 6 PM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ115>118-190215-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210919T1600Z/
Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters-
Maui County Leeward Waters-
310 AM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST SUNDAY...

* WHAT...East winds 20 to 25 kt.

* WHERE...Oahu Leeward Waters, Kaiwi Channel, Maui County 
  Windward Waters and Maui County Leeward Waters.

* WHEN...Until 6 AM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ110-112-113-190215-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210919T0400Z/
Kauai Northwest Waters-Kauai Leeward Waters-Kauai Channel-
310 AM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS
EVENING...

* WHAT...East winds up to 25 kt.

* WHERE...Kauai Northwest Waters, Kauai Leeward Waters and the
  Kauai Channel.

* WHEN...Until 6 PM HST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

997 
WHHW70 PHFO 190128
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
328 PM HST Sat Sep 18 2021

PHZ110-112-113-190230-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210919T0400Z/
Kauai Northwest Waters-Kauai Leeward Waters-Kauai Channel-
328 PM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

PHZ119>121-123-124-191430-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210920T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
328 PM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST SUNDAY...

* WHAT...East winds 25 kt with higher gusts.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ115>118-191430-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210919T1600Z/
Oahu Leeward Waters-Kaiwi Channel-Maui County Windward Waters-
Maui County Leeward Waters-
328 PM HST Sat Sep 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST SUNDAY...

* WHAT...East winds 25 kt with higher gusts.

* WHERE...Maui County Leeward Waters, Kaiwi Channel, Maui County 
  Windward Waters and Oahu Leeward Waters.

* WHEN...Until 6 AM HST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

528 
WHHW70 PHFO 191336
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
336 AM HST Sun Sep 19 2021

PHZ115-118-191445-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210919T1600Z/
Oahu Leeward Waters-Maui County Leeward Waters-
336 AM HST Sun Sep 19 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have dropped below the advisory threshold of 25 kt.

$$

PHZ119>121-123-124-200245-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210922T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
336 AM HST Sun Sep 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST TUESDAY...

* WHAT...East winds to 25 kt with stronger gusts.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Tuesday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ116-117-200245-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210920T0400Z/
Kaiwi Channel-Maui County Windward Waters-
336 AM HST Sun Sep 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS
EVENING...

* WHAT...East winds 20 to 25 kt.

* WHERE...Kaiwi Channel and Maui County Windward Waters.

* WHEN...Until 6 PM HST this evening.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

850 
WHHW70 PHFO 200137
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
337 PM HST Sun Sep 19 2021

PHZ116-117-200245-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210920T0400Z/
Kaiwi Channel-Maui County Windward Waters-
337 PM HST Sun Sep 19 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

PHZ119>121-123-124-201445-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210922T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
337 PM HST Sun Sep 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST
TUESDAY...

* WHAT...East winds to 25 kt with stronger gusts.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

455 
WHHW70 PHFO 201306
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
306 AM HST Mon Sep 20 2021

PHZ119>121-123-124-210345-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
306 AM HST Mon Sep 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST WEDNESDAY...

* WHAT...East winds to 25 kt with stronger gusts, except north
  winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

22

750 
WHHW70 PHFO 210136
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
336 PM HST Mon Sep 20 2021

PHZ119>121-123-124-211445-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
336 PM HST Mon Sep 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST
WEDNESDAY...

* WHAT...East winds to 25 kt with stronger gusts, except north 
  winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

085 
WHHW70 PHFO 211305
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
305 AM HST Tue Sep 21 2021

PHZ116-117-220215-
/O.EXA.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Kaiwi Channel-Maui County Windward Waters-
305 AM HST Tue Sep 21 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM HST WEDNESDAY...

* WHAT...East winds to 25 kt.

* WHERE...Kaiwi Channel and Maui County Windward Waters.

* WHEN...Until 6 PM HST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PHZ119>121-123-124-220215-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
305 AM HST Tue Sep 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST
WEDNESDAY...

* WHAT...East winds to 25 kt, except north winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 PM HST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Gibbs

286 
WHHW70 PHFO 220124
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
324 PM HST Tue Sep 21 2021

PHZ116-117-119>121-123-124-221430-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Kaiwi Channel-Maui County Windward Waters-Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-
Big Island Southeast Waters-
324 PM HST Tue Sep 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST
WEDNESDAY...

* WHAT...East winds to 25 kt, except north winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo
  Channel, Big Island Southeast Waters, Maalaea Bay, Maui County
  Windward Waters, and Kaiwi Channel.

* WHEN...Until 6 PM HST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

005 
WHHW70 PHFO 221327
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
327 AM HST Wed Sep 22 2021

PHZ116-117-119>121-123-124-230230-
/O.CON.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Kaiwi Channel-Maui County Windward Waters-Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-
Big Island Southeast Waters-
327 AM HST Wed Sep 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS
EVENING...

* WHAT...East winds to 25 kt, except north winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters, Maalaea Bay, Maui County 
  Windward Waters, and Kaiwi Channel.

* WHEN...Until 6 PM HST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Gibbs

698 
WHHW70 PHFO 230147
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
347 PM HST Wed Sep 22 2021

PHZ116-117-230300-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210923T0400Z/
Kaiwi Channel-Maui County Windward Waters-
347 PM HST Wed Sep 22 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

PHZ119>121-123-124-231500-
/O.EXT.PHFO.SC.Y.0043.000000T0000Z-210923T1600Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
347 PM HST Wed Sep 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST THURSDAY...

* WHAT...East winds to 25 kt, except north winds in Maalaea Bay.

* WHERE...Big Island Leeward Waters, Alenuihaha Channel, Pailolo 
  Channel, Big Island Southeast Waters and Maalaea Bay.

* WHEN...Until 6 AM HST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

697 
WHHW70 PHFO 231334
MWWHFO

URGENT - MARINE WEATHER MESSAGE
National Weather Service Honolulu HI
334 AM HST Thu Sep 23 2021

PHZ119>121-123-124-231445-
/O.CAN.PHFO.SC.Y.0043.000000T0000Z-210923T1600Z/
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Leeward Waters-Big Island Southeast Waters-
334 AM HST Thu Sep 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have decreased below advisory threshold across the advisory
area. The Small Craft Advisory is therefore cancelled.

$$

Area Forecast Discussion
National Weather Service Honolulu HI
333 AM HST Wed Sep 15 2021

.SYNOPSIS...
A trough north of the state will weaken winds into the light to
moderate range today. Sea breezes will develop which could
trigger increased showers during the afternoon and evening hours.
Moisture moving in from the southeast will produce more showers,
primarily for windward Big Island areas tonight. Trade winds will
increase Thursday, with conditions expected to dry out through
the day. Expect a trade wind weather pattern afterwards through
the forecast period.

&&

.DISCUSSION...
An upper low far north moved southwest overnight and lies a few
hundred miles north of Oahu this morning. Surface troughing
associated with this upper low will pass just north of the state
on today, causing local winds to ease and veer toward the east-
southeast. Localized sea breezes will lead to scattered showers
across the state. Some of these showers may be briefly heavy in
the afternoon due to instability associated with the nearby upper
low.

Increased moisture is expected to move in from the southeast
this afternoon and tonight, fueling briefly heavy showers across
east and southeast facing areas of the Big Island and Maui. The
rest of the island chain will be shadowed from the Big Island, but
scattered showers, some briefly heavy, may occur.

Thursday will be a transition day as the trough begins to move
away from the state and high pressure builds to the north.
Showery conditions are still expected as breezy trades fill back
in from the east. Lingering moisture and instability are expected
over the western end of the state, which could lead to brief
heavy rainfall over Kauai on Thursday. By Friday, strong trade
winds will return across the state with drier conditions. A trade
wind weather pattern is then expected to continue through the rest
of the forecast period.

&&

.AVIATION...
An upper level low passing just north of the Hawaiian Islands will
enhance showers and clouds across the region into Thursday. Light
to moderate trade winds will push these clouds across each
island favoring the windward and mountain areas. Brief periods of
MVFR conditions are possible favoring the overnight to early
morning hours.

AIRMETs for Mountain Obscuration remains in effect for north and
east sections from Kauai through the Big Island.

&&

.MARINE...
A trough of low pressure will pass by to the north of the state
today and tonight, easing the trades across the marine area. The
trades will ramp back up to locally strong levels Thursday through
the weekend, as the trough exits and a new high builds north of
the island chain. Winds will likely reach Small Craft Advisory
(SCA) thresholds over the typically windy waters around Maui and
Big Island on Thursday, with SCAs expected to expand to most if
not all waters Friday and Saturday. The trades should then ease
slightly Sunday through early next week as the high to the distant
north weakens.

A series of long period south and southwest swells will keep surf
along south facing shores near to slightly above the September
average through Thursday, before gradually lowering Friday
through early next week. Small surf will prevail along north
facing shores through the remainder of the work week, with a small
bump from a northwest swell expected this weekend. Another small
but slightly larger northwest swell is possible Tuesday and
Wednesday of next week. East shore surf will remain well below
normal today, rise to near seasonal levels Thursday through
Saturday as trade winds ramp up over and upstream of the islands,
then lower a notch Sunday into early next week as the trade winds
ease.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
None.

&&

DISCUSSION...Powell
AVIATION...Bohlin
MARINE...Jelsema