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Emergency Response Coordination Centre (ERCC) – DG ECHO Daily Map | 4/09/2017 Caribbean | Hurricane IRMA Hurricane Watches * >500 * A hurricane watch means that hurricane conditions (sustained winds of 119 km/h or higher) are possible within the specified area. A hurricane watch is issued 48 hours in advance of the anticipated onset of tropical-storm-force winds in an area. Source: GDACS, NOAA, Worldbank (Pop. 15 000) (Pop. 40 000) (Pop. 50 000) (Pop. 100 000) (Pop. 5 000) (Pop. 404 000) (Pop. 10 000) 6 Sep., 6.00 UTC 222 km/h sust. Winds 5 Sep., 18.00 UTC 213 km/h sust. winds 7 Sep., 6.00 UTC 222 km/h sust. winds 8 Sep., 6.00 UTC 213 km/h sust. winds 9 Sep., 6.00 UTC 204 km/h sust. winds TROPICAL CYCLONE INTENSITY Ï Ï > 118 km/h RAINFALL FORECAST Next 5-DAYS (NOAA/HWRF) > 250 mm 100 - 250 mm 50 – 100 mm 25 - 50 mm STORM SURGE JRC Calculations ≤ 1 m Observed position TROPICAL CYCLONE Forecast position Area of track uncertainty GDACS RED ALERT > 118 km/h WIND BUFFER 93-118 km/h 63-92 km/h Hurricane Watches as of 4 Sep, at 9.00 UTC NOAA-NHC 6 Sep., 6.00 UTC 222 km/h sust. Winds (Pop. 78 000) 4 Sep., 9.00 UTC 185 km/h sust. winds Sources: GDACS, NOAA, NASA
