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	83 km/h
Maximum storm surge	0.3 m (17 Aug 21:15 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	83 km/h	0.3 m	271 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 16 Aug 2026 12:00 UTC

Category	Country	Population
Tropical Storm	United States	720	+
	United States	717
	Other countries	02

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	68	-	-	-	-	-	-	-
4	13 Aug 2026 12:00	68	-	-	-	-	-	-	-
5	14 Aug 2026 00:00	76	-	-	-	-	-	-	-
6	14 Aug 2026 12:00	76	-	-	-	-	-	-	-
7	15 Aug 2026 00:00	83	-	-	-	-	-	-	-
8	15 Aug 2026 12:00	94	-		-	-	-	-	-	United States
9	16 Aug 2026 00:00	94	-		-	-	-	-	-	United States, Other countries
10	16 Aug 2026 12:00	119	-		-	-	-	-	-	United States, Other countries

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 16 Aug 2026 12:00 UTC

Level	Country	Population
250-500 mm	United States	00	+
100-250 mm	United States, Kiribati	40,992	+
	United States	34,486
	Kiribati	6,505
50-100 mm	United States, Kiribati	1,074,426	+
	United States	1,070,572
	Other countries	03
	Kiribati	3,850

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	408	-	-	-	-	-	-	-
4	13 Aug 2026 12:00	309	-	-	-	-	-	-	-
5	14 Aug 2026 00:00	264	-	-	-	-	-	-	-
6	14 Aug 2026 12:00	153	-	-	-	-	-	-	-
7	15 Aug 2026 00:00	263	-		-	-	-	-	-	United States
8	15 Aug 2026 12:00	328	50 thousand			-	-	-	-	United States
9	16 Aug 2026 00:00	483	130 thousand				-	-	-	United States, Other countries
10	16 Aug 2026 12:00	584	40 thousand			-	-	-	-	United States, Other countries, Kiribati

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Umipaa, United States. This height is estimated for 17 Aug 2026 21:15 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 16 Aug 2026 12:00 UTC

Level	Date (UTC)	Name	Country	Storm surge height (m)
	17 Aug 2026 21:15	Umipaa	United States	0.3
	17 Aug 2026 21:15	Kaunakakai	United States	0.3
	17 Aug 2026 21:15	Kaumalapau	United States	0.3
	17 Aug 2026 21:15	Moku	United States	0.3
	17 Aug 2026 21:15	Kamalo	United States	0.3
	17 Aug 2026 21:15	Kaluaaha	United States	0.3
	17 Aug 2026 21:15	Keomuku	United States	0.3
	17 Aug 2026 21:15	Ualapue	United States	0.3
	18 Aug 2026 22:45	Pukoo	United States	0.3
	18 Aug 2026 22:45	Waialua	United States	0.3
	16 Aug 2026 21:30	Makaha	United States	0.3
	16 Aug 2026 21:30	Makaha Valley	United States	0.3
	16 Aug 2026 21:30	Mokuleia	United States	0.3
	16 Aug 2026 21:30	Dillingham Ranch	United States	0.3
	16 Aug 2026 21:30	Waialua	United States	0.3
	16 Aug 2026 21:30	Haleiwa	United States	0.3
	16 Aug 2026 21:30	Kamooloa	United States	0.3
	16 Aug 2026 21:30	Kawailoa Camp	United States	0.3
	16 Aug 2026 21:30	Kawailoa Beach	United States	0.3
	16 Aug 2026 21:30	Waimea	United States	0.3
	16 Aug 2026 21:30	Sunset Beach	United States	0.3
	16 Aug 2026 21:30	Pupukea	United States	0.3
	16 Aug 2026 21:30	Waialee	United States	0.3
	16 Aug 2026 21:30	Kawela Bay	United States	0.3
	16 Aug 2026 21:30	Marconi	United States	0.3
	16 Aug 2026 21:30	Kahuku	United States	0.3
	18 Aug 2026 02:30	Kaaawa	United States	0.2
	18 Aug 2026 02:30	Honolulu	United States	0.2
	18 Aug 2026 02:30	Kahana	United States	0.2
	18 Aug 2026 02:30	Kahaluu	United States	0.2
	18 Aug 2026 02:30	Ahuimanu	United States	0.2
	18 Aug 2026 02:30	Heeia	United States	0.2
	18 Aug 2026 02:30	Kaneohe	United States	0.2
	18 Aug 2026 02:30	Maunawili	United States	0.2
	18 Aug 2026 02:30	Aina Haina	United States	0.2
	18 Aug 2026 02:30	Kaneohe Station	United States	0.2
	18 Aug 2026 02:30	Kailua	United States	0.2
	18 Aug 2026 02:30	Lanikai	United States	0.2
	18 Aug 2026 02:30	Waimanalo	United States	0.2
	18 Aug 2026 02:30	Maunalua	United States	0.2
	16 Aug 2026 13:00	Aiea	United States	0.2
	16 Aug 2026 13:00	Laie	United States	0.2
	16 Aug 2026 13:00	Hauula	United States	0.2
	16 Aug 2026 13:00	Halawa	United States	0.2
	16 Aug 2026 13:00	Halawa Heights	United States	0.2
	16 Aug 2026 13:00	Aliamanu	United States	0.2
	16 Aug 2026 13:00	Punaluu	United States	0.2
	16 Aug 2026 13:00	Waikane	United States	0.2
	16 Aug 2026 13:00	Fort Shafter	United States	0.2
	19 Aug 2026 01:15	Kaanapali	United States	0.2
	19 Aug 2026 01:15	Puukolii	United States	0.2
	19 Aug 2026 01:15	Lahaina	United States	0.2
	16 Aug 2026 21:00	Kahakuloa	United States	0.2
	16 Aug 2026 21:00	Maalaea	United States	0.2
	16 Aug 2026 21:00	Waihee	United States	0.2
	16 Aug 2026 21:00	Hyashi Village	United States	0.2
	16 Aug 2026 21:00	Wailuku	United States	0.2
	16 Aug 2026 21:00	Kahului	United States	0.2
	16 Aug 2026 21:00	Kihei	United States	0.2
	16 Aug 2026 21:00	Puunene	United States	0.2
	16 Aug 2026 21:00	Village Eight	United States	0.2
	16 Aug 2026 21:00	Hawaiian Village	United States	0.2
	16 Aug 2026 21:00	Paia	United States	0.2
	16 Aug 2026 21:00	Haiku	United States	0.2
	16 Aug 2026 21:00	Pauwela	United States	0.2
	16 Aug 2026 21:00	Ulumalu	United States	0.2
	16 Aug 2026 12:00	Kailua	United States	0.2
	16 Aug 2026 12:00	Wailua	United States	0.2
	16 Aug 2026 21:45	Halena	United States	0.2
	16 Aug 2026 21:45	Wahilauhue	United States	0.2
	16 Aug 2026 21:45	Kepuhi	United States	0.2
	16 Aug 2026 21:45	Mauna Loa	United States	0.2
	16 Aug 2026 21:45	Moomomi	United States	0.2
	16 Aug 2026 21:45	Hoolehua	United States	0.2
	16 Aug 2026 21:45	Kualapuu	United States	0.2
	16 Aug 2026 21:45	Kalaupapa	United States	0.2
	19 Aug 2026 10:30	Keawakapu	United States	0.2
	19 Aug 2026 10:30	Makena	United States	0.2
	19 Aug 2026 10:30	Keoneoio	United States	0.2
	16 Aug 2026 21:15	Crater Village	United States	0.2
	16 Aug 2026 21:15	Honokahua	United States	0.2
	16 Aug 2026 21:15	Mahinahina Camp	United States	0.2
	16 Aug 2026 21:15	Kapalua	United States	0.2
	16 Aug 2026 21:15	Olowalu	United States	0.2
	18 Aug 2026 22:45	Halawa	United States	0.2
	16 Aug 2026 12:30	Mahukona	United States	0.2
	16 Aug 2026 12:30	Hawi	United States	0.2
	16 Aug 2026 12:30	Kapaau	United States	0.2
	16 Aug 2026 12:30	Halaula	United States	0.2
	16 Aug 2026 12:30	Makapala	United States	0.2
	16 Aug 2026 12:30	Niulii	United States	0.2
	16 Aug 2026 21:45	Nahiku	United States	0.2
	16 Aug 2026 13:00	Kaupulehu	United States	0.2
	16 Aug 2026 13:00	Kiholo	United States	0.2
	16 Aug 2026 13:00	Weliweli	United States	0.2
	16 Aug 2026 13:00	Anaehoomalu	United States	0.2
	16 Aug 2026 13:00	Puako	United States	0.2
	16 Aug 2026 13:00	Waikoloa Village	United States	0.2
	16 Aug 2026 13:00	Kawaihae	United States	0.2
	16 Aug 2026 12:30	Waipio	United States	0.2
	16 Aug 2026 12:30	Pearl City	United States	0.2
	16 Aug 2026 12:30	Waimalu	United States	0.2
	16 Aug 2026 12:15	Waipio	United States	0.2
	16 Aug 2026 12:15	Kukuihaele	United States	0.2
	16 Aug 2026 12:15	Honokaa	United States	0.2
	16 Aug 2026 12:15	Paauilo	United States	0.2
	16 Aug 2026 12:15	Kukaiau	United States	0.2
	16 Aug 2026 12:30	Ulupalakua	United States	0.2
	16 Aug 2026 22:00	Puuwai	United States	0.2
	16 Aug 2026 22:00	Kahaino	United States	0.2
	16 Aug 2026 22:00	Nonopapa	United States	0.2
	16 Aug 2026 22:00	Kiekie	United States	0.2
	16 Aug 2026 22:00	Waieli	United States	0.1
	16 Aug 2026 22:00	Mana	United States	0.1
	16 Aug 2026 22:00	Kalalau	United States	0.1
	17 Aug 2026 02:30	Napari	Kiribati	0.1
	17 Aug 2026 02:30	Weston Point	Kiribati	0.1
	16 Aug 2026 21:30	Haena	United States	0.1
	16 Aug 2026 21:30	Wainiha	United States	0.1
	16 Aug 2026 21:30	Hanalei	United States	0.1
	16 Aug 2026 21:30	Princeville	United States	0.1
	16 Aug 2026 12:30	Iroquois Point	United States	0.1
	16 Aug 2026 12:30	Hickam Housing	United States	0.1
	16 Aug 2026 22:00	Kekaha	United States	0.1
	16 Aug 2026 22:00	Waimea	United States	0.1
	16 Aug 2026 22:00	Pakala Village	United States	0.1
	16 Aug 2026 22:00	Makaweli	United States	0.1
	16 Aug 2026 22:00	Kaumakani	United States	0.1
	16 Aug 2026 12:30	Ewa	United States	0.1
	16 Aug 2026 12:30	Honouliuli	United States	0.1
	16 Aug 2026 12:30	Ewa Gentry	United States	0.1
	16 Aug 2026 12:30	Village Park	United States	0.1
	16 Aug 2026 12:30	Waipahu	United States	0.1
	16 Aug 2026 12:30	Ewa Beach	United States	0.1
	16 Aug 2026 12:45	Sea View	United States	0.1
	16 Aug 2026 12:45	Keauhou	United States	0.1
	16 Aug 2026 12:45	Kahaluu	United States	0.1
	16 Aug 2026 12:45	Captain Cook	United States	0.1
	16 Aug 2026 12:45	Napoopao	United States	0.1
	16 Aug 2026 12:45	Honaunau	United States	0.1
	16 Aug 2026 12:45	Hookena	United States	0.1
	16 Aug 2026 12:45	Keokea	United States	0.1
	16 Aug 2026 12:45	Kealia	United States	0.1
	18 Aug 2026 04:45	Kaeleku	United States	0.1
	18 Aug 2026 04:45	Hana	United States	0.1
	16 Aug 2026 12:45	Ookala	United States	0.1
	16 Aug 2026 12:30	Mahaiula	United States	0.1
	16 Aug 2026 22:15	Koloa	United States	0.1
	16 Aug 2026 22:15	Poipu	United States	0.1
	16 Aug 2026 22:15	Puhi	United States	0.1
	16 Aug 2026 22:15	Lihue	United States	0.1
	16 Aug 2026 22:15	Wailua Homesteads	United States	0.1
	16 Aug 2026 22:15	Kealia	United States	0.1
	16 Aug 2026 22:15	Hanamaulu	United States	0.1
	16 Aug 2026 22:15	Wailua	United States	0.1
	16 Aug 2026 22:15	Kapaa	United States	0.1
	16 Aug 2026 22:15	Kumukumu	United States	0.1
	16 Aug 2026 22:15	Kukuiula	United States	0.1
	16 Aug 2026 22:15	Kalaheo	United States	0.1
	16 Aug 2026 22:15	Lawai	United States	0.1
	16 Aug 2026 22:15	Omao	United States	0.1
	16 Aug 2026 22:15	Hanapepe	United States	0.1
	16 Aug 2026 22:15	Eleele	United States	0.1
	16 Aug 2026 12:30	Kaupo	United States	0.1
	16 Aug 2026 12:30	Kipahulu	United States	0.1
	16 Aug 2026 12:30	Muolea	United States	0.1
	16 Aug 2026 12:30	Haou	United States	0.1
	16 Aug 2026 12:30	Puuiki	United States	0.1
	16 Aug 2026 21:30	Kilauea	United States	0.1
	16 Aug 2026 12:00	Barbers Point Housing	United States	0.1
	16 Aug 2026 21:45	Moloaa	United States	0.1
	16 Aug 2026 12:45	Milolii	United States	0.1
	16 Aug 2026 12:45	Papa	United States	0.1
	16 Aug 2026 21:30	Anahola	United States	0.1
	19 Aug 2026 05:15	Weloka	United States	0.1
	19 Aug 2026 05:15	Ninole	United States	0.1
	19 Aug 2026 05:15	Hakalau	United States	0.1
	19 Aug 2026 05:15	Honomu	United States	0.1
	19 Aug 2026 05:15	Pepeekeo	United States	0.1
	19 Aug 2026 05:15	Wainaku	United States	0.1
	19 Aug 2026 05:15	Papaikou	United States	0.1
	19 Aug 2026 05:15	Paukaa	United States	0.1
	19 Aug 2026 05:15	Hilo	United States	0.1
	16 Aug 2026 12:00	Waianae	United States	0.1
	16 Aug 2026 12:00	Maili	United States	0.1
	16 Aug 2026 12:00	Nanakuli	United States	0.1
	16 Aug 2026 12:45	Laupahoehoe	United States	0.1
	16 Aug 2026 12:45	Papaaloa	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.
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