We come to you today to talk about hurricane maps. These maps come from FEMA, MEMA, NOAA and NHC. The map at the top of the page is a Hurricane Inundation Map.
Here's how it works:
Light Green = Category 1 hurricane. Hurricane Gloria was one of these, and the offshore Halloween Gale was, too. Although not a tropical system, the Blizzard of '78 did Cat. 1-style damage.
Dark Green = Category 2 hurricane. Hurricane Bob was one of these.
Yellow = Category 3 hurricane. We've only had five of these hit New England since the Other Man arrived in 1620, the most recent being Hurricane Carol in 1954.
Pink = Category 4 hurricane. We've had one in recorded New England history, and it struck in 1635.
Flesh = One Hundred Year FEMA Food Zone. This is the "100 year storm" you hear people speak of, but you have to go pre-Colombian to find them ("going pre-Colombian" means using salt marsh soil samples to look for sand layering associated with large hurricanes). New England has had storms in the Category 4+ level in the 1100s, the 1300s, and the 1400s.
Sorry about Flesh, but my knowledge of color names was and continues to be heavily influenced by whoever was in charge at Crayola in the 1970s.
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| Yes, that's Duxbury, and yes, that's from a nor'easter and not a hurricane, but it is Inundation. |
This map is based on the zany-weatherman-titled SLOSH model for storm surge inundation. It depicts the inundation that FEMA thinks will occur with a direct-hit hurricane arriving at mean high tide. It does not account for freshwater flooding. It also shows what intensity (on the Saffir-Simpson hurricane intensity scale) of storm would be needed to soak certain parts of Sammich.
I have written this very same article for every town in SE Massachusetts with a coastline, and many towns are tricky with flooding. Pembroke, which isn't even near the ocean, will get some salt water in a bad enough hurricane. Mattapoisett floods several miles inland, while New Bedford should- in theory- hardly flood at all.
Sandwich isn't even a little bit tricky. Most of her flooding will occur very close to shore, and you can pretty much guess where it will happen if you take a Sunday drive through town. Granted, someone with my job has looked at a lot of hurricane inundation maps and gets sort of jaded with coastal destruction, but nothing on the Sandwich map makes me say "Damn... who woulda thunk?"
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| That's not snow, it's, uhm, stubborn hurricane wave foam... |
You can get Ended in an innumerable amount of ways if a hurricane hits Sammich, only a few of which involve saltwater inundation. You could step on a downed power line, get the Charles I treatment from flying debris, drown in pond flooding, have a tree fall on your car, get crucified by purging looters, get swallowed (either up into a cyclone or down into a whirlpool), drown in your attic, suffer summary execution by the National Guard, stumble into a sharknado... trust me, I'm just scratching the surface here, player.
We want you alive. Beyond base reasoning like "If you actually looked at this article, we cherish you and cannot fiscally afford to lose your potential site visits," we also have a sort of "If they utilized the article properly, they live" professional pride thing going on. We also want you alive for regular, nice-person reasons. You're our kind of people.
This leads into our next map, the Evacuation Zone map. This one is much less nuanced than the Inundation map, in that there are only two colors.
They basically break down to:
Pink = These people should leave.
Yellow = You should leave, too.
Here are a few things that my highly trained eye sees with these here maps of ours:
- Storms will be very, very capable of washing out Route 6A in some spots. This makes Scorton Neck into an island.
- Add that to "the bridges close when the winds top 70 mph or so," and you have a Trapped Sandwich.
- Marylou's of Sandwich is vulnerable to Category 4 storms, a problem I expect them to have solved before the next Category 4 storm hits. I need Marylou's, as I don't like Red Bull and this site doesn't make enough for me to afford cocaine.
- The Sandwich fire and police stations are vulnerable to even a minimal hurricane.
- You're safe off Route 130, and I'd encourage coastal people to befriend someone off 130 well enough to be granted asylum from the storm.
- Even a minor hurricane will at least temporarily end Sandwich's above-water presence on the mainland.
- The Canal would only spill over in Category 3 and above.
- The power plant is safe from flooding in all but the worst storms, according to FEMA.
- Ridiculous shoreline change is likely, with much sand loss into the marshes. Thanks to the Canal jetty and certain legislative failures, no replenishing sand will be forthcoming.
- We'll leave the street-by-street analysis to the reader. You can use the maps on the site to zoom in to your very home. We'll link you up at the end of the article, no worries.
- Seek out and question whichever old-timer has lived in your neighborhood the longest. Ask him or her what happened in Hurricane Carol. Find out how bad the road flooded, what happened to your house, how impossible escape was, and all that. You should never fail to utilize the Old School when planning your personal emergency response.
Bone up on the Hurricane Information with these handy links:
Hurricane Inundation Maps
Evacuation Maps
Worst Hurricanes To Hit New England
List of all hurricanes to hit New England
Sandwich Flood Mitigation Plan
(pictures by FEMA, Stacey Moreau and Carter Malpass)
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