National Hurricane Center
April 23, 2009
2009082018_wsp34knt120hr_halfDeg
vector digital data
http://www.nhc.noaa.gov/gis
The 34 knot, 120 hour cumulative wind speed probabilities show
probabilites of sustained (1-minute average) surface (10-meter altitude)
wind speeds equal to or exceeding 34 kt...39 mph
(tropical storm force) at a regualary spaced (1/2 degree) grid of points. The
cumulative periods begin at the start of the forecast period and extend through
the entire 5-day forecast period from 0-120 hours.
The 34 knot, 120 hour cumulative surface wind speed probabilites
are used to assess the overall risk of experiencing winds of at least 39 mph
(34 knots) at a location during the period between hour 0 (the beginning
of the forecast) and day 5 (120 hours). This data is based on the official
National Hurricane Center (NHC) track, intensity, and wind radii forecast, and
on NHC forecast error statistics for those forecasts variables during recent years.
These data are intended for geographic display and analysis at the national level
and for large regional areas. The data should be displayed and analyzed at scales
appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National
Oceanic and Atmospheric Administration in the use of these data.
090423/0619
None planned
180
180
-90
90
None
Wind Radii
Wind Swath
Hurricane
Hurricane Track
Tropical Storm
Subtropical storm
Subtropical depression
Tropical disturbance
Tropical Wave
Tropical low
Extratropical storm
Major hurricane
Tropical cyclone
Subtropical cyclone
None
United States
Atlantic
North Atlantic Basin
Gulf of Mexico
Caribbean Sea
Pacific Islands
Eastern North Pacific Basin
None
None. Acknowledgement of the National Oceanic and Atmospheric Administration, National Weather Service, National Environmental Prediction Center or the National Hurricane Center would be appreciated in products derived from these data.
GIS POC
National Hurricane Center / Technical Support Branch
physical address
11691 SW 17th St.
Miami
FL
33165
USA
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.4.1420
Vector
Entity point
0.1
0.1
Decimal degrees
D_Sphere
Sphere
6371200.000000
infinity
*NAM*
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
PWIND120
The 120 hour cumulative probability of surface (10-meter altitude) wind speeds in percent between 0 and 100.
Downloadable Data
No responsibility is assumed by the National Oceanic and Atmospheric Administration in the use of these data.
April 23, 2009
National Hurricane Center
GIS POC
Technical Support Branch
physical address
11691 SW 17th St.
Miami
FL
33178
USA
305-229-4400
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile