Overall Green alert Tropical Cyclone for BERTHA-20
in United States
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Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone BERTHA-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries United States
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.5 m (27 May 14:30 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
Current 83 km/h 0.5 m n.a. 0.5
Overall 83 km/h 0.5 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Wind

83 km/h Current Max.

Up to 490000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 27 May 2020 12:30 74 560 thousand No people United States
Green 2 27 May 2020 15:00 83 490 thousand No people United States

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 27 May 2020 12:30 Tropical storm 74 no people no people 32.7, -79.4
GREEN
2 27 May 2020 15:00 Tropical storm 83 no people 450000 people 33.3, -79.5 United States
GREEN
2 28 May 2020 00:00 Tropical depression 56 no people no people 35.2, -80 United States
GREEN
2 28 May 2020 12:00 Tropical depression 37 no people no people 38.8, -79.9 United States
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
United States

Provinces

Region Province Country
South Carolina United States
North Carolina United States

Populated places

Name Region Province Country City class Population
Florence South Carolina United States City 30000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Andrews Municipal ADR 8 Civ. Paved No 3000
Georgetown County GGE 12 Civ. Paved Yes 5000
Jordan 11 0
Laurel Hill Farms 4 0
Hemingway Stuckey 16 0
East Cooper 4 0
Williamsburg County 20 Civ. Paved Yes 5000
Raven's Run 2 0
Lake City Municipal Cj Evans Field 24 0
Cockfield Aerodrome 25 0
Byrd Field 34 0
Mc Kay 41 0
Florence Regional FLO 45 Civ. Paved Yes 6400
Huggins Memorial 44 0
Branhams 50 0
Paul's Plantation 55 0
Curry 61 0
Carolina Pines Regional Medical Center 69 0
Darlington County 59 Civ. Paved Yes 5000
Hartsville Municipal HVS 111 Civ. Paved Yes 5000
Clio Crop Care 40 0
Marlboro County BTN 45 Civ. Paved Yes 5000
Wild Irish Rose 115 0
Cheraw Municipal HCW 73 0
Rockingham Hamlet 109 0
Piedmont Medical Center 204 0
Anson County 93 Civ. Paved Yes 3400
Birds Nest 198 0

Ports

Name LOCODE Country
Georgetown USGGE Wake Island

Dams

Reservoir Dam Name River Year
Blewett Falls Pee Dee River 1912
Tillery Pee Dee River 1928

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0.5 m

The maximum Storm surge height is  0.5m in McCellanville, United States. This height is estimated for 27 May 2020 14:30 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (117 locations). Calculation based on advisory number 2 of 27 May 2020 15:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
27 May 2020 14:30 McCellanville United States  0.5
27 May 2020 14:30 McClellanville United States  0.5
27 May 2020 14:30 Quarantine United States  0.5
27 May 2020 14:30 Clambank United States  0.5
27 May 2020 14:30 De Bordieu Colony United States  0.5
27 May 2020 16:30 Plantation Point United States  0.5
27 May 2020 16:30 Myrtle Beach United States  0.5
27 May 2020 16:30 Ocean Forest United States  0.5
27 May 2020 16:30 Arcadian Shores United States  0.5
27 May 2020 16:30 Atlantic Beach United States  0.5
27 May 2020 16:30 Ingram Beach United States  0.5
27 May 2020 16:30 North Myrtle Beach United States  0.5
27 May 2020 16:30 Nixons Crossroads United States  0.5
27 May 2020 16:30 Cherry Grove Beach United States  0.5
27 May 2020 16:30 Creekside United States  0.5
27 May 2020 16:30 Little River United States  0.5
27 May 2020 16:30 Calabash United States  0.5
27 May 2020 16:30 Shady Forest United States  0.5
27 May 2020 16:30 Sea Trail Plantation United States  0.5
27 May 2020 15:30 Pawleys Island United States  0.5
27 May 2020 15:30 Parkersville United States  0.5
27 May 2020 16:30 Briarcliffe Acres United States  0.5
27 May 2020 15:30 Hagley Estates United States  0.4
27 May 2020 15:30 True Blue United States  0.4
27 May 2020 15:30 Birds Nest United States  0.4
27 May 2020 15:30 Chapel Creek United States  0.4
27 May 2020 15:30 Annieville United States  0.4
27 May 2020 15:30 North Litchfield Beach United States  0.4
27 May 2020 15:30 Huntington Marsh United States  0.4
27 May 2020 15:30 Oak Hill United States  0.4
27 May 2020 15:30 Murrells Inlet United States  0.4
27 May 2020 15:30 Inlet Harbor United States  0.4
27 May 2020 15:30 Mount Gilead United States  0.4
27 May 2020 15:30 Garden City United States  0.4
27 May 2020 15:30 Deer Track Villas United States  0.4
27 May 2020 15:30 Crystal Lake United States  0.4
27 May 2020 15:30 Pebble Beach United States  0.4
27 May 2020 15:30 Myrtle Ridge United States  0.4
27 May 2020 16:30 Monogram United States  0.4
27 May 2020 15:30 Konig United States  0.4
27 May 2020 15:30 Surfside Beach United States  0.4
27 May 2020 16:30 Ocean Isle Beach United States  0.4
27 May 2020 16:30 Varnamtown United States  0.4
27 May 2020 16:30 Sunset Beach United States  0.4
27 May 2020 16:30 Brick Landing United States  0.4
27 May 2020 16:30 Secession United States  0.4
27 May 2020 14:30 Buck Hall United States  0.4
27 May 2020 14:30 Tibwin United States  0.4
27 May 2020 16:30 Coolvale United States  0.4
27 May 2020 16:30 Holden Beach United States  0.3
27 May 2020 16:30 Old Town United States  0.3
27 May 2020 16:30 Kendall Chapel United States  0.3
27 May 2020 16:30 Sheephead Rock United States  0.3
27 May 2020 16:30 Silver Lake United States  0.3
27 May 2020 16:30 Long Beach United States  0.3
27 May 2020 16:30 Fort Caswell United States  0.3
27 May 2020 16:30 Southport United States  0.3
27 May 2020 16:30 Myrtle Grove United States  0.3
27 May 2020 16:30 Saint James United States  0.3
27 May 2020 16:30 Yaupon Beach United States  0.3
27 May 2020 16:30 Caswell Beach United States  0.3
27 May 2020 16:30 Bald Head Island United States  0.2
27 May 2020 17:30 Kure Beach United States  0.2
27 May 2020 17:30 Carolina Beach United States  0.2
27 May 2020 17:30 Myrtle Sound United States  0.2
27 May 2020 23:30 Cedar Point United States  0.1
27 May 2020 23:30 Bogue United States  0.1
27 May 2020 23:30 Emerald Isle United States  0.1
27 May 2020 23:30 Indian Beach United States  0.1
27 May 2020 17:30 Winter Park United States  0.1
27 May 2020 17:30 Windemere United States  0.1
27 May 2020 17:30 Seagate United States  0.1
27 May 2020 17:30 Hampstead United States  0.1
27 May 2020 23:30 Bear Creek United States  0.1
27 May 2020 23:30 Cape Carteret United States  0.1
27 May 2020 23:30 Ocean United States  0.1
27 May 2020 23:30 Broad Creek United States  0.1
27 May 2020 23:30 Pine Knoll Shores United States  0.1
27 May 2020 23:30 Beaufort United States  0.1
27 May 2020 23:30 Lenoxville United States  0.1
27 May 2020 23:30 Straits United States  0.1
27 May 2020 23:30 Gloucester United States  0.1
27 May 2020 17:30 Masonboro United States  0.1
27 May 2020 17:30 Ogden United States  0.1
27 May 2020 17:30 Wrightsville Beach United States  0.1
27 May 2020 17:30 Bayshore United States  0.1
27 May 2020 23:30 Willis Landing United States  0.1
27 May 2020 23:30 Salter Path United States  0.1
27 May 2020 23:30 Carolina City United States  0.1
27 May 2020 23:30 Atlantic Beach United States  0.1
27 May 2020 23:30 Cape Lookout United States  0.1
27 May 2020 17:30 Kings Landing United States  0.1
27 May 2020 17:30 Topsail Beach United States  0.1
27 May 2020 17:30 Sloop Point United States  0.1
27 May 2020 23:30 Chadwick Acres United States  0.1
27 May 2020 23:30 Swansboro United States  0.1
27 May 2020 23:30 Bucks Corner United States  0.1
27 May 2020 23:30 Wildwood United States  0.1
27 May 2020 23:30 Hollywood United States  0.1
27 May 2020 23:30 Blades United States  0.1
27 May 2020 23:30 Crab Point Village United States  0.1
27 May 2020 23:30 Morehead City United States  0.1
28 May 2020 00:30 Harkers Island United States  0.1
27 May 2020 23:30 Otway United States  0.1
27 May 2020 23:30 Smyrna United States  0.1
27 May 2020 23:30 Marshallberg United States  0.1
27 May 2020 23:30 Williston United States  0.1
27 May 2020 23:30 Davis United States  0.1
27 May 2020 23:30 Stacy United States  0.1
27 May 2020 23:30 Masontown United States  0.1
27 May 2020 17:30 Barlowes United States  0.1
27 May 2020 17:30 Surf City United States  0.1
27 May 2020 17:30 Ocean City Beach United States  0.1
27 May 2020 17:30 Thomas Landing United States  0.1
27 May 2020 22:30 North Topsail Beach United States  0.1
27 May 2020 17:30 Sneads Ferry United States  0.1
27 May 2020 23:30 Duck Creek United States  0.1