This is a compilation of evacuation zones begun in the middle of the 2019 season by GateHouse Media LLC. Contributions would be welcomed.
Please see also Hurricane Tools and Power Outages.
The KMLs are conversions from the original layers, and typically have modifications:
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Multiple entries for a particular hurricane zone are dissolved into solo versions.
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The CRS is frequently converted to EPSG 4326 / WGS84
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Lines may be modestly simplified, e.g., by 20 feet. One KML was shrunk about 95 percent this way. (Note: 0.00004 degrees in Florida may be pretty close to 15 feet.)
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Areas under a certain size, like 2000 square feet, can be dropped.
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Areas that are not in hurricane evacuation zones may be struck.
A sample embed code for Google Maps is available here: https://pastebin.com/JaSNC1dM
Standardized color keys help considerably.
Bay County, Fla.
Pulled: September 2019
Origin: Evacuation Zones dataset, http://data-baycountygis.opendata.arcgis.com/datasets/evacuation-zones
https://drive.google.com/open?id=1YtoldYnbQKLLZxIO8lou0-FpnM8ZWJDF&usp=sharing
Duval County, Fla.
Pulled: September 2019.
Origin: Records request and money order.
Escambia County, Fla.
Pulled: September 2019
Origin: Records request
https://drive.google.com/open?id=1YtoldYnbQKLLZxIO8lou0-FpnM8ZWJDF&usp=sharing
Notes: Most places have evacuation zones as distinct objects. Here, evacuation zones were released cumulatively, e.g., Zone C included what was actually zone C, plus Zones B and A. So the first step was to find the difference, e.g., the real C is the difference between source C and source B. On top of that there were some squirrelly geographies. The initial layers had to be buffered at 0 feet for QGIS to work with 'em. The composited layers still wouldn't work unless I added a buffer of 10 feet. And simplification was set at 42 feet.
Flagler County, Fla.
Pulled: September 2019
Origin: Searching for "evac" at http://data-fcmaps.opendata.arcgis.com/
Manatee County, Fla.
Pulled: September 2019
Origin: Pulled from Evacuation Levels dataset, https://public-manateegis.opendata.arcgis.com/
Okaloosa County, Fla.
Pulled: September 2019
Origin: Records request
Note: Significant chunks of what would be evacuation zones are missing from the county map -- uninhabited park/beach areas and multiple large federal properties, including an Air Force base and a related airfield.
Palm Beach County, Fla.
Pulled: September 2019
Origin: Pulled from Evacuation_Areas_2012 dataset, http://maps.co.palm-beach.fl.us/EGISdata_catalog/
Santa Rosa County, Fla.
Pulled: September 2019
Origin: Records request
https://drive.google.com/open?id=1YtoldYnbQKLLZxIO8lou0-FpnM8ZWJDF&usp=sharing
Note: Some weird geometry problems, like polys of 0 sqft. Had to calculate $area in QGIS; kill features under 300sq ft; add 5 feet of buffer; simplify by 22 feet; dissolve by EVAC; export to 4326.
Sarasota County, Fla.
Pulled: September 2019
Origin: Downloaded from StormEvacuationLevel dataset, https://data-sarco.opendata.arcgis.com/search?tags=Environmental%2Csafety
Warning: This does not play nicely in several different ways. There are an extraordinary number of polygons, some of which represent like, 0 square feet. A straight KML conversion is runs something silly like 120mb; Google wants no more than 5mb. And the borders are just crazily complex. So the default CRS is feet; this relies on you having calculated the area for each poly:
c:\osgeo4w\bin\ogr2ogr -f KML sarasotav5everything.kml sarasotav5.shp -simplify 35 -mapFieldType Integer64=Integer -dialect sqlite -sql "SELECT ST_Union(geometry), evacuation FROM sarasotav5 where area >= 200 GROUP BY evacuation" -t_srs EPSG:4326
St. Johns County, Fla.
Pulled: September 2019.
Origin: Email response to records request.
Volusia County, Fla.
Pulled: September 2019
Origin: EvacZones dataset from http://maps.vcgov.org/gis/download/shapes.htm
Walton County, Fla.
Pulled: September 2019
Origin: Records request (may go online later)
https://drive.google.com/open?id=1YtoldYnbQKLLZxIO8lou0-FpnM8ZWJDF&usp=sharing
Washington County, Fla. as of September 2019