National Hurricane Center Thu Oct 16 23:59:05 2025 vector digital data http://www.nhc.noaa.gov/gis These points indicate current disturbance locations in NHC's Graphical Tropical Weather Outlook (GTWO). They are usually symbolized with filled cross marks in the color codes of 7-day cyclone formation risk categories: yellow for low risk, orange for medium risk, red for high risk, when used in conjunction with the 7-day potential cyclone formation areas. They may also be used to present 2-day cyclone formation risks on a separate map. The GTWO GIS version consists of three shapefiles that indicate (1) current disturbance locations with points, (2) 7-day potential cyclone formation areas with polygons, and (3) the movements of disturbances with vector lines if the current disturbances are not located in the potential cyclone formation areas. Each shapefile is furnished with the same attributes for each disturbance, including the basin of occurrence, the area number in that basin, 2-day formation probability, 2-day risk category, 7-day formation probability, and 7-day risk category. A disturbance is identified with both the basin of occurrence and the area number that refers to its potential cyclone formation area. This is also how a disturbance is associated with its forecast messages in the enclosed TWO text files. The cyclone formation probabilities range from 0% to 100% with 10% increments, and they are classified into three risk categories: Low for 0-30%, Medium for 40-60%, and High for 70-100%. Typical applications of these shapefiles are illustrated at www.hurricanes.gov. If a potential tropical cyclone poses a risk to land within the watch/warning timeline, full advisories may be issued for a potential tropical cyclone. In that case, there will be no formation area polygon or current location point included in the GTWO shapefiles. Users are instead advised to use the shapefiles available at www.hurricanes.gov/gis, released with each forecast advisory. Thu Oct 16 23:59:05 2025 Forecast Advisory Date/Time Complete None planned -97.27087896815806 -37.74402722958224 40.52620794319136 10.547694656179418 None Hurricane Major Hurricane Tropical Cyclone Tropical Storm Tropical Depression Tropical Disturbance Tropical Low Tropical Wave Subtropical Cyclone Subtropical Storm Subtropical Depression Subtropical Disturbance Subtropical Low Post-Tropical Cyclone Remnants None United States Atlantic North Atlantic Basin Gulf of Mexico Caribbean Sea Pacific Islands Eastern North Pacific Basin None Acknowledgement of the National Oceanic and Atmospheric Administration (NOAA), National Weather Service (NWS) or National Hurricane Center (NHC) would be appreciated if the product is used directly or indirectly. There are virtually no limitations on the use of this product. 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 3 0.1 0.1 Decimal degrees D_Sphere Sphere 6371200.000000 infinity gtwo_points_202510162359 FID Internal feature number. ESRI Sequential integers starting from 0. Shape Feature geometry. ESRI Descriptive words. BASIN The ocean basin where the tropical or subtropical cyclone is occurring. Atlantic North Atlantic Basin East Pacific Eastern North Pacific Basin AREA The number of a cyclone formation area in each basin. PROB2DAY Probability of cyclone formation in 2 days, ranging from 0% to 100% in 10% increments. RISK2DAY Risk category of cyclone formation in 2 days, ranging Low, Medium or High. Low Probablility of cyclone formation is 0-30% Medium Probability of cyclone formation is 40-60% High Probability of cyclone formation is 70-100% PROB7DAY Probablility of cyclone formation in 7 days, ranging from 0% to 100% in 10% increments. RISK7DAY Risk category of cyclone formation in 7 days, ranging Low, Medium or High. Low Probablility of cyclone formation is 0-30% Medium Probability of cyclone formation is 40-60% High Probability of cyclone formation is 70-100% Downloadable Data No responsibility is assumed by the National Oceanic and Atmospheric Administration in the use of these data. *SIZ* Thu Oct 16 23:59:05 2025 National Hurricane Center GIS POC Technical Support Branch physical address

11691 SW 17th St.

Miami FL 33165 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