Overall Green alert Tropical Cyclone for FLORENCE-18
in United States
alertimage

Orange alert for storm surge impact based on HWRF source

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.

This report is for advisory number 62 of tropical cyclone FLORENCE-18 issued at 14 Sep 2018 21:00:00 (GDACS Event ID 1000495). However, the calculation for advisory number is not completed. Therefore, the latest available calculation is shown. All links, data, statistics and maps refer to the latest available calculation.

Summary

Population affected by cyclone-strength winds (>120km/h):No People
Saffir-Simpson Category: Tropical storm
Maximum sustained wind speed: 70 Km/h
he maximum Storm surge height is:  2.0m in Duck Creek, United States.

Storm surge

View animation and affected locations in an interactive map: open

Storm surge maximum height
Storm surge maximum height (Source: JRC)
Max windspeed
Max windspeed (Source: HWRF)

Evolution

Legend
people affected <=10000
people affected >10000 and <100000
people affected >100000


Calculation Alert color Date (UTC) Wind speed Population affected
winds(>120km/h)
TS CAT. 1 CAT. 2 CAT. 3 CAT. 4 CAT. 5 Countries
1
GREEN
20180908.00 98 km/h (61 mph) No people
2
GREEN
20180908.06 111 km/h (69 mph) No people
3
GREEN
20180908.12 106 km/h (66 mph) No people
4
GREEN
20180908.18 131 km/h (81 mph) No people affected
5
GREEN
20180909.00 137 km/h (85 mph) No people affected
6
GREEN
20180909.06 108 km/h (67 mph) No people
7
GREEN
20180909.12 134 km/h (83 mph) No people affected
8
GREEN
20180909.18 149 km/h (92 mph) No people affected
9
GREEN
20180910.00 192 km/h (119 mph) No people affected
10
GREEN
20180910.06 201 km/h (125 mph) No people affected
11
GREEN
20180910.12 218 km/h (135 mph) No people affected
12
GREEN
20180910.18 238 km/h (147 mph) No people affected
13
ORANGE
20180911.00 140 km/h (86 mph) 2 thousand
United States, Montserrat, Guadeloupe (France), Dominica
14
RED
20180911.06 191 km/h (118 mph) 130 thousand
United States, Montserrat, Guadeloupe (France)
15
GREEN
20180911.12 158 km/h (98 mph) 130 thousand
United States, Guadeloupe (France), Dominica
16
GREEN
20180911.18 201 km/h (125 mph) 300 thousand
United States, Guadeloupe (France)
17
GREEN
20180912.00 179 km/h (111 mph) 210 thousand
United States, Guadeloupe (France)
18
GREEN
20180912.06 206 km/h (127 mph) 200 thousand
United States, Guadeloupe (France)
19
GREEN
20180912.12 172 km/h (106 mph) 100 thousand
United States
20
GREEN
20180912.18 163 km/h (101 mph) 100 thousand
United States
21
GREEN
20180913.00 144 km/h (90 mph) 10 thousand
United States
22
GREEN
20180913.06 159 km/h (99 mph) 50 thousand
United States
23
GREEN
20180913.12 184 km/h (114 mph) 50 thousand
United States
24
GREEN
20180913.18 148 km/h (92 mph) 30 thousand
United States
25
GREEN
20180914.00 153 km/h (95 mph) 90 thousand
United States
26
GREEN
20180914.06 134 km/h (83 mph) 30 thousand
United States
27
GREEN
20180914.12 135 km/h (84 mph) 30 thousand
United States
28
GREEN
20180914.18 117 km/h (72 mph) No people
United States
29
GREEN
20180915.00 96 km/h (60 mph) No people
United States
30
GREEN
20180915.06 78 km/h (48 mph) No people
United States
31
GREEN
20180915.12 72 km/h (45 mph) No people
United States
32
GREEN
20180915.18 73 km/h (45 mph) No people
United States
33
GREEN
20180916.00 70 km/h (44 mph) No people
United States

Affected locations

Date Name Country Alert Storm surge height (m)
14 Sep 2018 07:00:00 Duck Creek United States  2.0m
14 Sep 2018 07:00:00 Willis Landing United States  2.0m
14 Sep 2018 07:00:00 Bear Creek United States  2.0m
14 Sep 2018 07:00:00 Swansboro United States  2.0m
14 Sep 2018 07:00:00 Bucks Corner United States  2.0m
14 Sep 2018 07:00:00 Cedar Point United States  2.0m
14 Sep 2018 07:00:00 Cape Carteret United States  2.0m
14 Sep 2018 07:00:00 Bogue United States  2.0m
14 Sep 2018 07:00:00 Emerald Isle United States  2.0m
14 Sep 2018 07:00:00 Ocean United States  2.0m
14 Sep 2018 07:00:00 Indian Beach United States  2.0m
14 Sep 2018 06:45:00 Broad Creek United States  1.9m
14 Sep 2018 06:45:00 Salter Path United States  1.9m
14 Sep 2018 06:45:00 Wildwood United States  1.9m
Locations affected by Storm surge (15 of 2693)
Calculation based on advisory number of 16 Sep 2018 00:00.
(Simulation using minute resolution)

See full locations list (RSS)

More information

The atmospheric forcing included in the storm surge model are the pressure drop and the wind-water friction. The effects of the short waves induced by the wind (wave setup) and the precipitations are not yet implemented in the model.

  • Interactive map: open

For a full list of available products related to this event, please refer to the GDACS Resources page.