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HOME > Climate & Weather Linkage > Storm Track Monitoring
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Storm tracks and cyclogenesis/cyclolysis locations for the past 10, 30, and 90 days.
Tracks are based on an algorithm developed at the Climate Diagnostics Center (CDC) [Serreze (1995), and Serreze et al. (1997)].
Storm tracks are identified by locating grid points in which the sea level pressure (SLP) is less than its surrounding grid points by 1 mb.
The images show storm tracks and total precipitation (mm), mean anomalous 925 mb wind vectors (m/s), and mean significant wave heights (m) (from the Environmental Modeling Center) respectively included for the three time periods. Red dots indicate current location of active storms.
The final grouping illustrates cyclogenesis and cyclolysis locations during the three periods for storms with a average SLP less than or equal to 1005 mb during its track and that have lasted at least 24 hours. The smaller dots indicate higher pressure and larger dots lower pressure at the time of development or dissipation.
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- Storm Tracks and Related Fields
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| Past 10 days |
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| Past 30 days |
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| Past 90 days |
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Latitude-time and time-longitude plots of storm days per pentad [the number of closed circulations (6-hr data) divided by 4 in a 10 x 10 degree region] for selected cross sections in the northern hemisphere. Each figure below contains four panels corresponding to different cross sections from the western Pacific to the Atlantic.
Each panel contains two figures (one showing the location of the area of interest and the second storm days as defined above). A three pentad running mean is applied to the data.
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| Latitude-Time: West/Central Pacific |
Latitude-Time: East Pacific/CONUS |
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| Latitude-Time: Atlantic |
Time-longitude: Northern Hemisphere |
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Storm tracks and associated total precipitation (mm), mean anomalous 925 mb wind vectors (m/s), and mean significant wave heights (m) (from the Ocean Prediction Center) for the GFS operational and ensemble mean forecasts for week 1.
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| GFS Operational: Week 1 |
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| GFS Ensemble Mean: Week 1 |
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| GFS Operational: Week 1 |
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| GFS Ensemble Mean: Week 1 |
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| GFS Operational: Week 1 |
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| GFS Ensemble Mean: Week 1 |
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| GFS Operational: Week 2 |
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| GFS Ensemble Mean: Week 2 |
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| GFS Operational: Week 2 |
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| GFS Ensemble Mean: Week 2 |
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Eichler, T. and R. W. Higgins, 2005: Climatology and ENSO-Related Variability of North American Extratropical Cyclone Activity, J. Climate, Accepted.
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