Marine Weather and Tide Forecast for Captain Cook, HI
May 5, 2024 10:57 AM HST (20:57 UTC) Change Location
 | Sunrise 5:47 AM Sunset 6:46 PM Moonrise 4:03 AM Moonset 4:43 PM |
PHZ123 Big Island Leeward Waters- 945 Am Hst Sun May 5 2024
.small craft advisory in effect through early Monday morning - .
Rest of today - West southwest winds 10 to 15 knots west of the big island - .east 25 to 30 knots near south point. Seas 5 to 8 feet. Wave detail: east northeast 7 feet at 7 seconds and south 3 feet at 18 seconds. Scattered showers late this morning, then isolated showers this afternoon.
Tonight - West of the big island, west northwest winds 7 to 10 knots. NEar south point, east winds to 30 knots, becoming 25 to 30 knots after midnight. Seas 6 to 9 feet. Wave detail: east 7 feet at 6 seconds and south 3 feet at 17 seconds. Scattered showers.
Monday - West of the big island, north winds 7 to 10 knots, backing to southwest in the afternoon. NEar south point, east winds 25 to 30 knots. Seas 6 to 9 feet, subsiding to 5 to 7 feet in the afternoon. Wave detail: east 7 feet at 6 seconds and south 3 feet at 16 seconds. Scattered showers, mainly in the morning.
Monday night - West of the big island, west northwest winds 7 to 10 knots. NEar south point, east winds to 30 knots, becoming 25 to 30 knots after midnight. Seas 5 to 7 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers.
Tuesday - West of the big island, northwest winds 7 to 10 knots. NEar south point, east northeast winds to 25 knots, veering to east in the afternoon. Seas 5 to 7 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers.
Tuesday night - West of the big island, northwest winds to 10 knots in the evening, becoming variable less than 10 knots. NEar south point, east winds to 25 knots, easing to 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 6 feet at 6 seconds. Isolated showers in the evening, then scattered showers after midnight.
Wednesday - West of the big island, north northwest winds 7 to 10 knots, becoming variable less than 10 knots. NEar south point, east northeast winds 10 to 15 knots, becoming east 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave detail: east 5 feet at 5 seconds. Scattered showers.
Thursday - West of the big island, north northwest winds 7 to 10 knots in the morning, becoming variable less than 10 knots, then becoming north northwest to 10 knots after midnight. NEar south point, east winds 15 to 20 knots, becoming east northeast 10 to 15 knots after midnight. Seas 4 to 6 feet. Wave detail: east northeast 6 feet at 6 seconds. Scattered showers in the morning. Isolated showers through the night, then scattered showers after midnight.
PHZ100 945 Am Hst Sun May 5 2024
Synopsis for hawaiian coastal waters - A 1030 mb high sitting about 850 nm north of the state will drift eastward Monday through Wednesday, leading to a decline in trade winds.
Area Discussion for - Honolulu, HI
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FXHW60 PHFO 051942 AFDHFO
Area Forecast Discussion National Weather Service Honolulu HI 942 AM HST Sun May 5 2024
SYNOPSIS
Breezy trade winds will continue into Monday, then decrease to moderate speeds late Monday into Tuesday. An upper-level disturbance passing through the islands will keep enhanced trade showers in the forecast through Monday. Additional bands of moisture, along with another upper disturbance, will keep generally wet weather in place for all islands through next week.
DISCUSSION
Water vapor satellite imagery this morning shows a weakening upper- level low just west of Kauai, drifting slowly eastward. A portion of the subtropical jet stream is also set up over the islands today, which will result in strong southwest winds aloft over the Big Island.
A Wind Advisory is now in effect for the summits of Mauna Kea and Mauna Loa through this afternoon. The strong summit winds will diminish later this evening through tonight.
At the surface, a 1030 mb high remains far north of the island chain and will continue to produce breezy easterly trade winds across the state into Monday. By Monday afternoon trade wind speeds transition to more moderate levels as the high drifts eastward away from the state. Expect moderate easterly trade winds to continue through the rest of the week. Current visible satellite and radar imagery show scattered low clouds and showers moving into windward areas on the trades, with some showers making it over to leeward sides at times.
Wetter than normal conditions remain in the forecast for all islands through much of this week. Enhanced showers will continue into Monday as the weakening upper level disturbance drifts from west to east across the island chain. While Tuesday will trend a bit drier, more wet weather is in store Wednesday into Thursday, as the remnant moisture from an old East Pacific cold front drifts into the islands on the trade winds. Another upper-level trough sweeping in from the north on Thursday and Friday will likely keep enhanced showers in the forecast into next weekend.
AVIATION
Breezy easterly trade winds will persist into tonight, with clouds and showers favoring windward and mauka locations. AIRMET Sierra for tempo mountain obscuration above 2500 feet will persist over windward portions of each island through the morning hours, possibly through the rest of the day for windward Big Island. As the low moves west across the islands tonight into Monday, clouds and showers are likely to fill in again.
AIRMET Tango is in effect for moderate turbulence below 9000 feet downwind of island terrain due to the winds. Additionally, moderate turbulence aloft (FL280-FL350) is expected today.
MARINE
A 1030 mb high sitting about 850 nm north of the state is maintaining fresh to near gale force trade winds, and a Small Craft Advisory (SCA) is in effect for all waters through tonight.
Trades will gradually ease late tonight through Tuesday as the high moves eastward. As a result, the SCA will likely be scaled back to the typically windy waters around the Big Island and Maui County by Monday and may be dropped entirely late Tuesday or Wednesday. Expect gentle to locally fresh trade winds to prevail Wednesday through Friday. In addition, a few heavy showers will be possible tonight and Monday.
Pulses of south to southwest swell are expected this week, with High Surf Advisory (HSA) conditions possible by Thursday. In the short term, the bulk of a south swell will be passing east of Hawaii, and so far there has not been much sign of a significant increase in swell energy at the buoys to the south of the islands.
Once this swell reaches the islands, south shore surf may rise to around May average tonight and Monday, then decline Tuesday and Wednesday. Forerunners from a larger south-southwest swell will arrive Wednesday, and surf is expected rise to the HSA level during the peak of the swell Thursday and Friday.
A pair of small northwest swells will move through over the next several days. The current swell of around 2 feet at 12 to 13 seconds will decline today, and a reinforcing small swell of around 3 ft will fill in Monday, peak Tuesday, then decline Tuesday and Wednesday. Wind-driven waves of around 9 feet at 9 to 10 seconds will maintain rough east shore surf above the May average into Monday. As trade winds decline early in the week, these seas will gradually decline to around May average by Tuesday then drop to below average for the rest of the week.
HFO WATCHES/WARNINGS/ADVISORIES
Wind Advisory until 6 PM HST this evening for Big Island Summits.
Small Craft Advisory until 6 AM HST Monday for all Hawaiian waters-
Area Forecast Discussion National Weather Service Honolulu HI 942 AM HST Sun May 5 2024
SYNOPSIS
Breezy trade winds will continue into Monday, then decrease to moderate speeds late Monday into Tuesday. An upper-level disturbance passing through the islands will keep enhanced trade showers in the forecast through Monday. Additional bands of moisture, along with another upper disturbance, will keep generally wet weather in place for all islands through next week.
DISCUSSION
Water vapor satellite imagery this morning shows a weakening upper- level low just west of Kauai, drifting slowly eastward. A portion of the subtropical jet stream is also set up over the islands today, which will result in strong southwest winds aloft over the Big Island.
A Wind Advisory is now in effect for the summits of Mauna Kea and Mauna Loa through this afternoon. The strong summit winds will diminish later this evening through tonight.
At the surface, a 1030 mb high remains far north of the island chain and will continue to produce breezy easterly trade winds across the state into Monday. By Monday afternoon trade wind speeds transition to more moderate levels as the high drifts eastward away from the state. Expect moderate easterly trade winds to continue through the rest of the week. Current visible satellite and radar imagery show scattered low clouds and showers moving into windward areas on the trades, with some showers making it over to leeward sides at times.
Wetter than normal conditions remain in the forecast for all islands through much of this week. Enhanced showers will continue into Monday as the weakening upper level disturbance drifts from west to east across the island chain. While Tuesday will trend a bit drier, more wet weather is in store Wednesday into Thursday, as the remnant moisture from an old East Pacific cold front drifts into the islands on the trade winds. Another upper-level trough sweeping in from the north on Thursday and Friday will likely keep enhanced showers in the forecast into next weekend.
AVIATION
Breezy easterly trade winds will persist into tonight, with clouds and showers favoring windward and mauka locations. AIRMET Sierra for tempo mountain obscuration above 2500 feet will persist over windward portions of each island through the morning hours, possibly through the rest of the day for windward Big Island. As the low moves west across the islands tonight into Monday, clouds and showers are likely to fill in again.
AIRMET Tango is in effect for moderate turbulence below 9000 feet downwind of island terrain due to the winds. Additionally, moderate turbulence aloft (FL280-FL350) is expected today.
MARINE
A 1030 mb high sitting about 850 nm north of the state is maintaining fresh to near gale force trade winds, and a Small Craft Advisory (SCA) is in effect for all waters through tonight.
Trades will gradually ease late tonight through Tuesday as the high moves eastward. As a result, the SCA will likely be scaled back to the typically windy waters around the Big Island and Maui County by Monday and may be dropped entirely late Tuesday or Wednesday. Expect gentle to locally fresh trade winds to prevail Wednesday through Friday. In addition, a few heavy showers will be possible tonight and Monday.
Pulses of south to southwest swell are expected this week, with High Surf Advisory (HSA) conditions possible by Thursday. In the short term, the bulk of a south swell will be passing east of Hawaii, and so far there has not been much sign of a significant increase in swell energy at the buoys to the south of the islands.
Once this swell reaches the islands, south shore surf may rise to around May average tonight and Monday, then decline Tuesday and Wednesday. Forerunners from a larger south-southwest swell will arrive Wednesday, and surf is expected rise to the HSA level during the peak of the swell Thursday and Friday.
A pair of small northwest swells will move through over the next several days. The current swell of around 2 feet at 12 to 13 seconds will decline today, and a reinforcing small swell of around 3 ft will fill in Monday, peak Tuesday, then decline Tuesday and Wednesday. Wind-driven waves of around 9 feet at 9 to 10 seconds will maintain rough east shore surf above the May average into Monday. As trade winds decline early in the week, these seas will gradually decline to around May average by Tuesday then drop to below average for the rest of the week.
HFO WATCHES/WARNINGS/ADVISORIES
Wind Advisory until 6 PM HST this evening for Big Island Summits.
Small Craft Advisory until 6 AM HST Monday for all Hawaiian waters-
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| KWHH1 | 40 mi | 57 min | WSW 7G | 79°F | 78°F | 30.00 | ||
| ILOH1 - 1617760 - Hilo, HI | 51 mi | 57 min | WNW 4.1G | 71°F | 76°F | 30.11 |
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Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| PHKO ELLISON ONIZUKA KONA INTL AT KEAHOLE,HI | 20 sm | 64 min | SW 06 | 10 sm | Partly Cloudy | 81°F | 64°F | 58% | 30.04 |
Tide / Current for Napoopoo, Kealakekua Bay, Hawaii Island, Hawaii
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Napoopoo
Click for Map
Sun -- 01:17 AM HST 1.37 feet High Tide
Sun -- 04:03 AM HST Moonrise
Sun -- 05:52 AM HST Sunrise
Sun -- 07:41 AM HST -0.39 feet Low Tide
Sun -- 02:28 PM HST 1.88 feet High Tide
Sun -- 04:43 PM HST Moonset
Sun -- 06:48 PM HST Sunset
Sun -- 08:52 PM HST 0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:17 AM HST 1.37 feet High Tide
Sun -- 04:03 AM HST Moonrise
Sun -- 05:52 AM HST Sunrise
Sun -- 07:41 AM HST -0.39 feet Low Tide
Sun -- 02:28 PM HST 1.88 feet High Tide
Sun -- 04:43 PM HST Moonset
Sun -- 06:48 PM HST Sunset
Sun -- 08:52 PM HST 0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Napoopoo, Kealakekua Bay, Hawaii Island, Hawaii, Tide feet
| 12 am |
| 1.2 |
| 1 am |
| 1.4 |
| 2 am |
| 1.3 |
| 3 am |
| 1.1 |
| 4 am |
| 0.7 |
| 5 am |
| 0.3 |
| 6 am |
| -0.1 |
| 7 am |
| -0.3 |
| 8 am |
| -0.4 |
| 9 am |
| -0.2 |
| 10 am |
| 0.2 |
| 11 am |
| 0.7 |
| 12 pm |
| 1.2 |
| 1 pm |
| 1.6 |
| 2 pm |
| 1.9 |
| 3 pm |
| 1.8 |
| 4 pm |
| 1.6 |
| 5 pm |
| 1.3 |
| 6 pm |
| 0.8 |
| 7 pm |
| 0.5 |
| 8 pm |
| 0.2 |
| 9 pm |
| 0.1 |
| 10 pm |
| 0.3 |
| 11 pm |
| 0.5 |
Kailua Kona
Click for Map
Sun -- 01:15 AM HST 1.45 feet High Tide
Sun -- 04:03 AM HST Moonrise
Sun -- 05:52 AM HST Sunrise
Sun -- 07:37 AM HST -0.28 feet Low Tide
Sun -- 02:21 PM HST 1.93 feet High Tide
Sun -- 04:43 PM HST Moonset
Sun -- 06:48 PM HST Sunset
Sun -- 08:43 PM HST 0.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:15 AM HST 1.45 feet High Tide
Sun -- 04:03 AM HST Moonrise
Sun -- 05:52 AM HST Sunrise
Sun -- 07:37 AM HST -0.28 feet Low Tide
Sun -- 02:21 PM HST 1.93 feet High Tide
Sun -- 04:43 PM HST Moonset
Sun -- 06:48 PM HST Sunset
Sun -- 08:43 PM HST 0.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Kailua Kona, Big Island, Hawaii, Tide feet
| 12 am |
| 1.3 |
| 1 am |
| 1.4 |
| 2 am |
| 1.4 |
| 3 am |
| 1.2 |
| 4 am |
| 0.8 |
| 5 am |
| 0.4 |
| 6 am |
| 0 |
| 7 am |
| -0.2 |
| 8 am |
| -0.3 |
| 9 am |
| -0.1 |
| 10 am |
| 0.3 |
| 11 am |
| 0.8 |
| 12 pm |
| 1.3 |
| 1 pm |
| 1.7 |
| 2 pm |
| 1.9 |
| 3 pm |
| 1.9 |
| 4 pm |
| 1.6 |
| 5 pm |
| 1.3 |
| 6 pm |
| 0.9 |
| 7 pm |
| 0.5 |
| 8 pm |
| 0.3 |
| 9 pm |
| 0.2 |
| 10 pm |
| 0.4 |
| 11 pm |
| 0.6 |
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