Overall Green Tropical Cyclone for LALA-26 in United States from 12 Aug 2026 15:00 UTC to 28 Aug 2026 09:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green Tropical Cyclone for LALA-26

in United States

Meteorological source:

GDACS NOAA

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone LALA-26 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	ECMWF
Exposed countries	United States
Exposed population	No people in Category 1 or higher
Maximum wind speed	68 km/h
Maximum storm surge	0.2 m (15 Aug 07:00 UTC)
Vulnerability	Low (United States)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
ECMWF Current	68 km/h	0.2 m	408 mm	0.5
ECMWF Overall	166 km/h	0.4 m	675 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

166 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 13 Aug 2026 00:00 UTC

Category	Country	Population
Tropical Storm	United States	28

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5	Countries
1	12 Aug 2026 00:00	58	-	-	-	-	-	-	-
2	12 Aug 2026 12:00	-	1 thousand		-		-			United States
3	13 Aug 2026 00:00	94	-		-	-	-	-	-	United States

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 13 Aug 2026 00:00 UTC

Level	Country	Population
100-250 mm	United States	122,784
50-100 mm	United States	23,800

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
1	12 Aug 2026 00:00	302	-	-	-	-	-	-	-
2	12 Aug 2026 12:00	206	-	-	-	-	-	-	-
3	13 Aug 2026 00:00	492	120 thousand			-	-	-	-	United States

Impact estimation for the next 72h

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in Umipaa, United States. This height is estimated for 15 Aug 2026 07:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Storm Surge Exposed population - AoIs

Storm Surge Exposed locations

Calculation based on the bulletin of 13 Aug 2026 00:00 UTC

Level	Date (UTC)	Name	Country	Storm surge height (m)
	15 Aug 2026 07:00	Umipaa	United States	0.2
	15 Aug 2026 07:00	Kaunakakai	United States	0.2
	15 Aug 2026 07:00	Kaumalapau	United States	0.2
	15 Aug 2026 07:00	Moku	United States	0.2
	15 Aug 2026 07:00	Kamalo	United States	0.2
	15 Aug 2026 07:00	Kaluaaha	United States	0.2
	15 Aug 2026 07:00	Keomuku	United States	0.2
	15 Aug 2026 07:00	Ualapue	United States	0.2
	15 Aug 2026 07:00	Pukoo	United States	0.2
	15 Aug 2026 07:00	Waialua	United States	0.2
	13 Aug 2026 08:30	Kaaawa	United States	0.2
	13 Aug 2026 08:30	Honolulu	United States	0.2
	13 Aug 2026 08:30	Kahana	United States	0.2
	13 Aug 2026 08:30	Kahaluu	United States	0.2
	13 Aug 2026 08:30	Ahuimanu	United States	0.2
	13 Aug 2026 08:30	Heeia	United States	0.2
	13 Aug 2026 08:30	Kaneohe	United States	0.2
	13 Aug 2026 08:30	Maunawili	United States	0.2
	13 Aug 2026 08:30	Aina Haina	United States	0.2
	13 Aug 2026 08:30	Kaneohe Station	United States	0.2
	13 Aug 2026 08:30	Kailua	United States	0.2
	13 Aug 2026 08:30	Lanikai	United States	0.2
	13 Aug 2026 08:30	Waimanalo	United States	0.2
	13 Aug 2026 08:30	Maunalua	United States	0.2
	14 Aug 2026 08:30	Kaanapali	United States	0.2
	14 Aug 2026 08:30	Puukolii	United States	0.2
	14 Aug 2026 08:30	Lahaina	United States	0.2
	13 Aug 2026 01:30	Weston Point	Kiribati	0.2
	13 Aug 2026 01:30	Napari	Kiribati	0.2
	15 Aug 2026 07:00	Kualapuu	United States	0.2
	15 Aug 2026 07:00	Halawa	United States	0.2
	14 Aug 2026 08:30	Crater Village	United States	0.1
	14 Aug 2026 08:30	Honokahua	United States	0.1
	14 Aug 2026 08:30	Mahinahina Camp	United States	0.1
	14 Aug 2026 08:30	Kapalua	United States	0.1
	14 Aug 2026 08:30	Olowalu	United States	0.1
	14 Aug 2026 11:15	Kahakuloa	United States	0.1
	15 Aug 2026 16:30	Waipio	United States	0.1
	15 Aug 2026 16:30	Pearl City	United States	0.1
	15 Aug 2026 16:30	Marconi	United States	0.1
	15 Aug 2026 16:30	Kahuku	United States	0.1
	15 Aug 2026 16:30	Waimalu	United States	0.1
	15 Aug 2026 16:30	Laie	United States	0.1
	15 Aug 2026 16:30	Hauula	United States	0.1
	15 Aug 2026 16:30	Punaluu	United States	0.1
	15 Aug 2026 16:30	Waikane	United States	0.1
	14 Aug 2026 08:30	Keawakapu	United States	0.1
	14 Aug 2026 08:30	Makena	United States	0.1
	14 Aug 2026 08:30	Keoneoio	United States	0.1
	14 Aug 2026 11:30	Waimea	United States	0.1
	14 Aug 2026 11:30	Sunset Beach	United States	0.1
	14 Aug 2026 11:30	Pupukea	United States	0.1
	14 Aug 2026 11:30	Waialee	United States	0.1
	14 Aug 2026 11:30	Kawela Bay	United States	0.1
	15 Aug 2026 15:15	Maalaea	United States	0.1
	15 Aug 2026 15:15	Hyashi Village	United States	0.1
	15 Aug 2026 15:15	Wailuku	United States	0.1
	15 Aug 2026 15:15	Kahului	United States	0.1
	15 Aug 2026 15:15	Kihei	United States	0.1
	15 Aug 2026 15:15	Puunene	United States	0.1
	15 Aug 2026 15:15	Village Eight	United States	0.1
	15 Aug 2026 15:15	Hawaiian Village	United States	0.1
	15 Aug 2026 15:15	Ulupalakua	United States	0.1
	15 Aug 2026 15:15	Paia	United States	0.1
	15 Aug 2026 18:00	Waihee	United States	0.1
	15 Aug 2026 18:00	Haiku	United States	0.1
	15 Aug 2026 18:00	Pauwela	United States	0.1
	15 Aug 2026 18:00	Ulumalu	United States	0.1
	15 Aug 2026 21:00	Kaalualu	United States	0.1
	15 Aug 2026 05:15	Mahaiula	United States	0.1
	15 Aug 2026 05:15	Kaupulehu	United States	0.1
	15 Aug 2026 05:15	Kiholo	United States	0.1
	15 Aug 2026 05:15	Weliweli	United States	0.1
	15 Aug 2026 05:15	Anaehoomalu	United States	0.1
	15 Aug 2026 05:15	Puako	United States	0.1
	15 Aug 2026 05:15	Waikoloa Village	United States	0.1
	15 Aug 2026 05:15	Kawaihae	United States	0.1
	15 Aug 2026 21:00	Waiahukini	United States	0.1
	15 Aug 2026 21:00	Naalehu	United States	0.1
	15 Aug 2026 21:00	Honuapo	United States	0.1
	15 Aug 2026 15:45	Kailua	United States	0.1
	15 Aug 2026 16:00	Aiea	United States	0.1
	15 Aug 2026 16:00	Halawa	United States	0.1
	15 Aug 2026 16:00	Halawa Heights	United States	0.1
	15 Aug 2026 16:00	Aliamanu	United States	0.1
	15 Aug 2026 16:00	Fort Shafter	United States	0.1
	15 Aug 2026 16:15	Halena	United States	0.1
	15 Aug 2026 16:15	Wahilauhue	United States	0.1
	15 Aug 2026 16:15	Kepuhi	United States	0.1
	15 Aug 2026 16:15	Mauna Loa	United States	0.1
	15 Aug 2026 16:15	Moomomi	United States	0.1
	15 Aug 2026 16:15	Hoolehua	United States	0.1
	15 Aug 2026 16:15	Kalaupapa	United States	0.1
	15 Aug 2026 20:45	Hilea	United States	0.1
	15 Aug 2026 20:45	Mahukona	United States	0.1
	15 Aug 2026 20:45	Hawi	United States	0.1
	15 Aug 2026 20:45	Kapaau	United States	0.1
	15 Aug 2026 20:45	Halaula	United States	0.1
	15 Aug 2026 20:45	Makapala	United States	0.1
	15 Aug 2026 20:45	Niulii	United States	0.1
	15 Aug 2026 20:45	Sea View	United States	0.1
	15 Aug 2026 20:45	Keauhou	United States	0.1
	15 Aug 2026 20:45	Kahaluu	United States	0.1
	15 Aug 2026 20:45	Captain Cook	United States	0.1
	15 Aug 2026 20:45	Napoopao	United States	0.1
	15 Aug 2026 20:45	Honaunau	United States	0.1
	15 Aug 2026 20:45	Hookena	United States	0.1
	15 Aug 2026 20:45	Keokea	United States	0.1
	15 Aug 2026 20:45	Kealia	United States	0.1
	15 Aug 2026 20:45	Milolii	United States	0.1
	15 Aug 2026 20:45	Papa	United States	0.1
	15 Aug 2026 17:15	Wailua	United States	0.1
	15 Aug 2026 17:15	Nahiku	United States	0.1

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While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
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