Overall Green alert Tropical Cyclone for DANNY-21
in United States
28 Jun 2021 15 UTC
click on to select bulletin time
  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone DANNY-21 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 74 km/h
    Maximum storm surge 0.8 m (28 Jun 22:00 UTC)
    Vulnerability Low (United States)
    Landfall between
    28 Jun 2021 15:00 - 29 Jun 2021 00:00
    in 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 65 km/h 0.8 m n.a. 0.5
    Overall 74 km/h 0.8 m n.a. 0.5

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

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    Wind

      65 km/h Current Max.

      Up to 1.5 million people in Tropical Storm strength or higher (see SSHS)

      Impact Timeline

        Alert N° Date (UTC) Max Winds (km/h) Population in
        Tropical Storm or higher        		 Population in
        Cat 1. or higher        		 Countries
        Green 1 28 Jun 2021 15:00 65 1.5 million No people United States

        Bulletin Timeline

          Alert N° 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 28 Jun 2021 15:00 Tropical depression 56 no people 830000 people 31.9, -78.3
          GREEN
          		 1 29 Jun 2021 00:00 Tropical storm 65 no people 1.5 million people 32.8, -80.6 United States
          GREEN
          		 1 29 Jun 2021 12:00 Tropical depression 37 no people no people 34.2, -83.3 United States
          GREEN
          		 1 30 Jun 2021 00:00 Tropical depression 28 no people no people 35.2, -85.6 United States
          Actual track of the current bulletin
          The alert for forecast greater than 3 days is limited to Orange level.
          Download:



          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
          Georgia United States

          Populated places

          Name Region Province Country City class Population
          South Augusta Georgia United States City 110000 people
          Augusta Georgia United States Major city -
          Appling Georgia United States City -
          Athens Georgia United States City 46000 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)
          Pluff Mud Field 5 0
          Charleston AFB International CHS 14 Civ. Paved Yes 9000
          Yonges Island 3 0
          Fripp Island Emergency 2 0
          Airy Hall 6 0
          Marsh Point 4 0
          Dorchester County 16 Civ. Paved Yes 3700
          Beaufort County 3 0
          Laurel Hill Plantation 3 0
          Beaufort County Memorial Hospital 6 0
          Beaufort Mcas BFT 12 Mil. Paved Yes 12200
          Walterboro Municipal RBW 30 Civ. Paved Yes 5700
          St George Municipal 26 0
          Ridgeland 24 0
          Hampton Varnville 34 0
          Shiloh Plantation 40 0
          Bell's Branch 29 0
          Broxton Bridge Plantation 37 0
          Ehrhardt 45 0
          Harpers 34 0
          Orangeburg Municipal OGB 60 Civ. Paved Yes 5400
          Davis 25 0
          Bamberg County Memorial Hospital 46 0
          Allendale County 49 0
          Bamberg County 61 0
          Sugar Hill 62 0
          Free Fall Farms 87 0
          Barnwell County BNL 75 Civ. Paved Yes 5200
          Wade Plantation 45 0
          Millhaven 50 0
          Perry International 134 0
          Vogtle Electric Generating Plant 40 0
          Rhodes Air Ranch 59 0
          Savannah River Site (Dept of Energy) 219 0
          Aiken Municipal AIK 161 Civ. Paved Yes 5000
          Burke County Hospital 80 0
          Harman 140 0
          Bush Field AGS 44 Civ. Paved Yes 8000
          Twin Lakes 165 0
          Medical College of Georgia 78 0
          Edgefield County 186 0
          Daniel Field DNL 129 Civ. Paved Yes 3900
          Pea Patch Aerodrome 132 0
          Doctors Hospital 122 0
          Dwight David Eisenhower Army Medical Center 122 0
          Morris 31 0
          McCormick County 140 0
          Thomson Mcduffie County 151 Civ. Paved Yes 5000
          Prater Ranch 140 0
          Hester Memorial 158 0
          Washington Wilkes County 197 Civ. Paved Yes 4000
          Elbert County Patz Field 183 0
          Athens Ben Epps AHN 246 Civ. Paved Yes 5500
          Franklin County 262 0
          St Marys Health Care Systems 224 0
          Papa Jim 210 0
          Hudson River Landing 203 0
          Doug Bolton Field 269 0
          Jackson County 290 0

          Ports

          Name LOCODE Country
          Port Royal USPRL Wake Island

          Dams

          Reservoir Dam Name River Year
          Savannah River Par Pond Savannah River Par Pond Lower Dam Trib. Lower Three Runs 1959
          Savannah River Steel Creek Dam Trib. Steel Creek 1986
          J. Strom Thurmond Lake J. Strom Thurmond Dam Savannah River 1954

          Nuclear plants

          Name Country Reactors
          VOGTLE UNITED STATES 2
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          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.

          ...

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          StormSurge

          0.8 m

          The maximum Storm surge height is  0.8m in Isle of Palms, United States. This height is estimated for 28 Jun 2021 22:00 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 (110 locations). Calculation based on advisory number 1 of 28 Jun 2021 15:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          28 Jun 2021 22:00 Isle of Palms United States  0.8
          28 Jun 2021 22:00 Bayfront United States  0.7
          28 Jun 2021 22:00 Folly Beach United States  0.7
          28 Jun 2021 22:00 Charleston United States  0.7
          28 Jun 2021 22:00 Lakeview Of Lawton Bluff United States  0.7
          28 Jun 2021 22:00 Centerville United States  0.7
          28 Jun 2021 22:00 Secessionville United States  0.7
          28 Jun 2021 22:00 Fort Johnson Estates United States  0.7
          28 Jun 2021 22:00 Hobcaw Point United States  0.7
          28 Jun 2021 22:00 The Groves United States  0.7
          28 Jun 2021 22:00 Mount Pleasant United States  0.7
          28 Jun 2021 22:00 Fort Moultrie United States  0.7
          28 Jun 2021 22:00 Cassina Heights United States  0.7
          28 Jun 2021 22:00 Sullivan's Island United States  0.7
          28 Jun 2021 22:00 Palmetto Fort United States  0.7
          28 Jun 2021 22:00 Island of Palms United States  0.7
          28 Jun 2021 22:00 Porcher Bluff United States  0.7
          28 Jun 2021 22:00 Ten Mile United States  0.7
          28 Jun 2021 22:00 Kiawah Island United States  0.7
          28 Jun 2021 22:00 Legareville United States  0.7
          28 Jun 2021 22:00 Buck Hall United States  0.7
          28 Jun 2021 22:00 Tibwin United States  0.7
          28 Jun 2021 22:00 McCellanville United States  0.7
          28 Jun 2021 22:00 McClellanville United States  0.7
          28 Jun 2021 22:00 Quarantine United States  0.6
          28 Jun 2021 23:00 Rockville United States  0.5
          28 Jun 2021 23:00 Seabrook Island United States  0.5
          28 Jun 2021 22:00 Clambank United States  0.5
          28 Jun 2021 22:00 De Bordieu Colony United States  0.5
          28 Jun 2021 23:00 Edisto Island United States  0.4
          28 Jun 2021 23:00 Freedman United States  0.4
          29 Jun 2021 00:00 Edisto Beach United States  0.4
          28 Jun 2021 22:00 Hagley Estates United States  0.4
          28 Jun 2021 22:00 True Blue United States  0.4
          28 Jun 2021 22:00 Birds Nest United States  0.4
          28 Jun 2021 22:00 Chapel Creek United States  0.4
          28 Jun 2021 22:00 Mount Gilead United States  0.3
          28 Jun 2021 22:00 Garden City United States  0.3
          28 Jun 2021 22:00 Deer Track Villas United States  0.3
          28 Jun 2021 22:00 Crystal Lake United States  0.3
          28 Jun 2021 22:00 Pebble Beach United States  0.3
          28 Jun 2021 22:00 Myrtle Ridge United States  0.3
          28 Jun 2021 22:00 Pawleys Island United States  0.3
          28 Jun 2021 22:00 Parkersville United States  0.3
          28 Jun 2021 22:00 Annieville United States  0.3
          28 Jun 2021 22:00 North Litchfield Beach United States  0.3
          28 Jun 2021 22:00 Huntington Marsh United States  0.3
          28 Jun 2021 22:00 Oak Hill United States  0.3
          28 Jun 2021 22:00 Murrells Inlet United States  0.3
          28 Jun 2021 22:00 Inlet Harbor United States  0.3
          28 Jun 2021 23:00 Konig United States  0.3
          28 Jun 2021 23:00 Plantation Point United States  0.3
          28 Jun 2021 23:00 Myrtle Beach United States  0.3
          28 Jun 2021 23:00 Ocean Forest United States  0.3
          28 Jun 2021 23:00 Arcadian Shores United States  0.3
          29 Jun 2021 01:00 Cedar Reef Villas United States  0.3
          28 Jun 2021 23:00 Surfside Beach United States  0.3
          28 Jun 2021 23:00 Nixons Crossroads United States  0.3
          28 Jun 2021 23:00 Creekside United States  0.3
          28 Jun 2021 23:00 Little River United States  0.3
          28 Jun 2021 23:00 Calabash United States  0.3
          28 Jun 2021 23:00 Shady Forest United States  0.3
          28 Jun 2021 23:00 Sea Trail Plantation United States  0.3
          29 Jun 2021 02:00 Frogmore United States  0.3
          28 Jun 2021 23:00 Briarcliffe Acres United States  0.2
          28 Jun 2021 23:00 Atlantic Beach United States  0.2
          28 Jun 2021 23:00 Ingram Beach United States  0.2
          28 Jun 2021 23:00 North Myrtle Beach United States  0.2
          28 Jun 2021 23:00 Monogram United States  0.2
          28 Jun 2021 23:00 Cherry Grove Beach United States  0.2
          29 Jun 2021 03:00 Fort Fremont United States  0.2
          28 Jun 2021 23:00 Varnamtown United States  0.2
          28 Jun 2021 23:00 Sunset Beach United States  0.2
          28 Jun 2021 23:00 Ocean Isle Beach United States  0.2
          28 Jun 2021 23:00 Brick Landing United States  0.2
          28 Jun 2021 23:00 Secession United States  0.2
          28 Jun 2021 23:00 Coolvale United States  0.2
          29 Jun 2021 03:00 Hilton Head Plantation United States  0.2
          28 Jun 2021 23:00 Holden Beach United States  0.2
          29 Jun 2021 03:00 Gator Field United States  0.2
          28 Jun 2021 23:00 Sheephead Rock United States  0.1
          28 Jun 2021 23:00 Old Town United States  0.1
          28 Jun 2021 23:00 Kendall Chapel United States  0.1
          28 Jun 2021 23:00 Silver Lake United States  0.1
          28 Jun 2021 23:00 Carolina Beach United States  0.1
          29 Jun 2021 02:00 Calibogue Cay United States  0.1
          29 Jun 2021 02:00 Spanish Wells United States  0.1
          29 Jun 2021 02:00 Bay Pines United States  0.1
          29 Jun 2021 02:00 Sea Pines Plantation United States  0.1
          29 Jun 2021 02:00 Forest Beach United States  0.1
          29 Jun 2021 02:00 Hilton Head Island United States  0.1
          29 Jun 2021 02:00 Long Cove Plantation United States  0.1
          29 Jun 2021 02:00 Bram Landing United States  0.1
          29 Jun 2021 02:00 Palmetto Dunes United States  0.1
          28 Jun 2021 23:00 Long Beach United States  0.1
          28 Jun 2021 23:00 Fort Caswell United States  0.1
          28 Jun 2021 23:00 Southport United States  0.1
          29 Jun 2021 02:00 Daufuskie Landing United States  0.1
          29 Jun 2021 02:00 Cooper River Landing United States  0.1
          29 Jun 2021 02:00 Fort Screven United States  0.1
          29 Jun 2021 02:00 Tybee Island United States  0.1
          29 Jun 2021 02:00 South Beach Villas United States  0.1
          29 Jun 2021 02:00 Greenwood Forest United States  0.1
          28 Jun 2021 23:00 Saint James United States  0.1
          28 Jun 2021 23:00 Yaupon Beach United States  0.1
          28 Jun 2021 23:00 Caswell Beach United States  0.1
          28 Jun 2021 23:00 Myrtle Sound United States  0.1
          29 Jun 2021 02:00 Folly Field United States  0.1
          28 Jun 2021 23:00 Kure Beach United States  0.1
          28 Jun 2021 23:00 Bald Head Island United States  0.1