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Reports from the National Data Buoy Center's Stations During the Passage of Hurricane Dean

13-23 August 2007

This report provides a summary of some of the wind speed parameters, the sea-level pressure and wave parameter reports from National Data Buoy Center (NDBC) stations in the vicinity of Hurricane Dean's track.

Map showing track of Dean and nearby stations

Figure 1: NDBC stations within 300 nm of Dean's track. Note: Stations 42057 and 42058 were not reporting during this period.

Wind Speed: Wind speeds are reported in meters per second to a resolution of 0.1 m/s. For the plot legends:

CWS: The average wind speed over a 10-minute period at the anemometer height. In this report, data are plotted at the time of the end of the valid 10-minute period.

MXGT1: The peak 5-second gust during the past hour at the anemometer height. The time of MXGT1 is reported to the nearest minute, however, in this report data are plotted at the valid time of the hourly report.

MX1GT1: The peak 1-minute wind speed during the past hour at the anemometer height. The time of MX1GT1 is reported to the nearest minute, however, in this report data are plotted at the valid time of the hourly report.

Pressure: Pressure is sampled at a rate of 1.0 Hz and reported to a resolution of 0.1 hectoPascal (hPa). For the plot legends:

BARO1: Sea-level Pressure. The buoy stations average the pressure over 8-minutes.

MN1MSLP1: Lowest sea-level pressure averaged over a one-minute period. Some stations report this value in addition to BARO1.

Wave: The wave sampling rate of all stations in this report is 1.7066 Hz.

WVHGT: The significant wave height that represents the average of the highest one-third of the waves during the wave sampling period.

DOMPD: The Dominant Period that represents the wave period (time between consecutive passes of the wave crests) of the waves with the most energy.

Closest Point of Approach (CPA): Time, bearing (degrees true), and distance (nautical miles) from the station to Hurricane Dean at CPA are computed using the positions from the National Hurricane Center's advisories that have been interpolated to hourly values for positions.



Wind/pressure plot from station 41041

Figure 2: Station 41041, Winds (Anemometer height 5m) and Sea-Level Pressure.



Wave plot from station 41041

Figure 3: Station 41041: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest Sea-Level Pressure (BARO1) 1010.9 hPa 08/15 1650Z
Maximum 10-minute Wind Speed (CWS) 15.3 m/s 08/15 1440Z
Maximum 5-s Gust (MXGT1) 19.1 m/s 08/15 1432Z
Maximum one-minute Wind Speed (MX1MGT1) 16.4 m/s 08/15 1432Z
Maximum Significant Wave Height (WVHGT) 4.6 m 08/15 1550Z
CPA Bearing and Distance To Hurricane 198°/118.5 nm 08/15 1700Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=41041



Wind/pressure plot from station 41040

Figure 4: Station 41040, Winds (Anemometer height 5m) and Sea-Level Pressure.



Wave plot from station 41040

Figure 5: Station 41040: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest Sea-Level Pressure (BARO1) 1006.8 hPa 08/16 0950Z
Maximum 10-minute Wind Speed (CWS) 21.2 m/s 08/16 1230Z
Maximum 5-s Gust (MXGT1) 26.5 m/s 08/16 1240Z
Maximum Significant Wave Height (WVHGT) 8.1 m 08/16 1250Z
CPA Bearing and Distance To Hurricane 177°/62.1 nm 08/16 1100Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=41040



Wind/pressure plot from station 42059

Figure 6: Station 42059, Winds (Anemometer height 5m) and Sea-Level Pressure.



Wave plot from station 42059

Figure 7: Station 42059: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest 1 Minute Sea-Level Pressure (MN1MSLP1) 972.9 hPa 08/18 0950Z
Maximum 10-minute Wind Speed (CWS) 27.6 m/s 08/18 1130Z
Maximum 5-s Gust (MXGT1) 35.9 m/s 08/18 1119Z
Maximum one-minute Wind Speed (MX1MGT1) 29.5 m/s 08/18 0941Z
Maximum Significant Wave Height (WVHGT) 10.0 m 08/18 0750Z
CPA Bearing and Distance To Hurricane 360°/11.4 nm 08/18 1000Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=42059



Wind/pressure plot from station 42056

Figure 8: Station 42056, Winds (Anemometer height 10m) and Sea-Level Pressure.



Wave plot from station 42056

Figure 9: Station 42056: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest 1 Minute Sea-Level Pressure (MN1MSLP1) 1000.5 hPa 08/20 2358Z
Maximum 10-minute Wind Speed (CWS) 23.2 m/s 08/21 0030Z
Maximum 5-s Gust (MXGT1) 32.1 m/s 08/20 2150Z
Maximum one-minute Wind Speed (MX1MGT1) 27.0 m/s 08/20 2250Z
Maximum Significant Wave Height (WVHGT) 11.0 m 08/21 0250Z
CPA Bearing and Distance To Hurricane 191°/98.1 nm 08/21 0100Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=42056



Wind/pressure plot from station 42055

Figure 10: Station 42055, Winds (Anemometer height 10m) and Sea-Level Pressure.



Wave plot from station 42055

Figure11: Station 42055: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest 1 Minute Sea-Level Pressure (MN1MSLP1) 1001.2 hPa 08/22 0929Z
Maximum 10-minute Wind Speed (CWS) 25.6 m/s 08/22 0930Z
Maximum 5-s Gust (MXGT1) 33.0 m/s 08/22 0929Z
Maximum one-minute Wind Speed (MX1MGT1) 28.4 m/s 08/22 0931Z
Maximum Significant Wave Height (WVHGT) 8.9 m 08/22 0950Z
CPA Bearing and Distance To Hurricane 194°/110.6 nm 08/22 0800Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=42055



Wind/pressure plot from station 42002

Figure 12: Station 42002, Winds (Anemometer height 10m) and Sea-Level Pressure.



Wave plot from station 42002

Figure 13: Station 42002: Significant Wave Height and Dominant Period.


Event Reported Value Date/Time of Event
Lowest Sea-Level Pressure (BARO1) 1009.9 hPa 08/22 0950Z
Maximum 10-minute Wind Speed (CWS) 15.0 m/s 08/21 1940Z
Maximum 5-s Gust (MXGT1) 21.7 m/s 08/21 1931Z
Maximum Significant Wave Height (WVHGT) 5.5 m 08/22 2050Z
CPA Bearing and Distance To Hurricane 192°/286.5 nm 08/22 1200Z

Link to Station Page: http://www.ndbc.noaa.gov/station_page.php?station=42002