- General Hurricane Information
General Hurricane Information
Saffir-Simpson Scale
The Saffir-Simpson Hurricane Scale rates a hurricane's intensity using wind speed and storm surge, which is the abnormal rise in sea level accompanying a hurricane or other intense storm. The scale also estimates the potential damage and flooding expected along the coast from a hurricane landfall.
| Category One |
| Wind Speed: |
74-95 mph (119-153 km/h) |
| Storm Surge: |
4-5 feet above normal |
| Damage: |
Damage primarily to unanchored mobile homes, shrubbery, and trees along with some coastal road flooding and minor pier damage |
| Category Two |
| Wind Speed: |
96-110 mph (154-177 km/h) |
| Storm Surge: |
6-8 feet above normal |
| Damage: |
Roofing, door and window damage to buildings; Considerable damage to shrubbery and trees, mobile homes, poorly constructed signs, and piers |
| Category Three |
| Wind Speed: |
111-130 mph (178-209 km/h) |
| Storm Surge: |
9-12 feet above normal |
| Damage: |
Structural damage to small residences and utility buildings; foliage blown off trees and large trees blown down; mobile homes destroyed |
| Category Four |
| Wind Speed: |
131-155 mph (210-249 km/h) |
| Storm Surge: |
13-18 feet above normal |
| Damage: |
Extensive damage to doors, windows and lower floors of shoreline houses; total roof failures on small residences; shrubs, trees, and all signs blown down; mobile homes completely destroyed |
| Category Five |
| Wind Speed: |
Greater than 155 mph (249 km/h) |
| Storm Surge: |
generally greater than 18 feet above normal |
| Damage: |
Complete roof failure on many buildings and some complete building failures with small utility buildings blown over or away; severe and extensive window and door damage; mobile homes completely destroyed |
Hurricane Communication Tips
- Ensure that your mobile phone has sufficient credit
- Always make sure that your mobile phone is fully charged
- Have a carphone charger on hand
What To Do...
Before a Hurricane Approaches
- Familiarize yourself with Hurricane terminology:
- Hurricane Watch: Hurricane conditions are possible in the specified area of the watch, usually within 36 hours.
- Hurricane Warning: Hurricane conditions are expected in the specified area of the warning, usually within 24 hours.
- Closely monitor your local radio or TV stations news for weather-related information.
- Identify ahead of time official hurricane shelters.
- Keep a family emergency kit stocked and handy. Include items like flashlights and batteries, battery-operated radio, first aid supplies, essential medications, canned food and a can opener.
- Stock up on drinking water – at least 3 gallons of water per person.
- Install hurricane shutters or purchase precut outdoor plywood boards for each window of your home.
- Install anchors for the plywood and pre-drill holes in the plywood so that you can put it up quickly.
- Make trees more wind resistant by removing diseased and damaged limbs and remove branches.
- Review your insurance policy and be sure you have sufficient coverage.
When a Hurricane WATCH is Issued
- Closely monitor your local radio and TV stations for up-to-date storm information.
- Prepare to bring inside any lawn furniture, outdoor decorations or ornaments, trash cans, hanging plants and anything else that can be picked up by the wind. container.
- Prepare to cover all windows of your home. If shutters have not been installed, use plywood.
- Fill your vehicle with gas and park on high ground and disconnect battery.
When a Hurricane WARNING is Issued
- Listen to advice of local officials, and leave if they tell you to do so.
- Complete preparation activities
- If you are not advised to evacuate, stay indoors, away from windows.
During a Hurricane
- Listen constantly to your radio or television for official instructions and updates
- Follow instructions issued by local officials
- If power is lost, turn of major appliances to reduce power ‘surge’ when electricity is restored
- In the event of strong winds take refuge in small interior room, closet or hallway on the lowest floor. Stay away from windows and doors
- If you happen to be outside take shelter in the nearest substantial structure or a sturdy tree and hold yourself to it.
- Be aware that the calm “eye” is deceptive; the storm is not over. The worst part of the storm will happen once the eye passes over and the winds blow from an opposite direction.
- If the water rises move to a higher floor or hold on to something that floats such as wooden furniture or a plastic container
After the Hurricane
- Keep listening to local news for instructions and for the all clear to be announced
- Wait until an area is declared safe before entering
- Drive only if absolutely necessary
- Check gas, water and electrical lines and appliances for damage
- Do not drink or prepare food with tap water until you are certain it is not contaminated.
Grenada Hurricane Shelters
| Carriacou |
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Mt. Pleasant Community Centre |
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Hillsborough Community Centre |
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Boggles Community Centre |
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| Petit Martinique |
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Petit Martinique R.C. School |
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| St. Andrew's |
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Battle Hill Primary School |
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Soubise SDA Church |
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Marquis Primary School |
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Mt. Fann Pre Primary School |
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Union Pool Hall |
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Dunfermline Evangelical Church |
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Pearl's Community Centre |
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St. Joseph's Convent (St. Andrew's) |
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Paraclete Government School |
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St. Andrew's R.C. School |
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Morne Horne Community Centre |
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Holy Innocents Anglican School |
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| St. David's |
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St. Theresa’s R.C. school |
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Westerhall Secondary School |
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St. Dominic’s R.C. School |
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Corinth Government School |
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| St. George's |
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La Borie Community Centre (upstairs) |
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Good Hope Community Centre |
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Mt. Airy Community Centre |
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Bethel Methodist Church |
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Marian Emergency Model Shelter |
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Morne Jaloux R.C. School |
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St. Mary/’s R.C School (Tempe) |
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Presentation Brothers College |
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SDA Church & School (Archibald Ave.) |
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Grand Anse R.C. School |
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Dynamite Disco (downstairs) |
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Beaulieu S.D.A. Church (downstairs) |
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Vendomme Community Centre |
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Boca Secondary School |
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Spring/’s Open Bible Church (downstairs) |
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| St. John's |
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Grand Roy Government School |
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Concord Government School |
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Florida R.C. Church |
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Florida S.D.A Church |
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Florida Government School |
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Clozier Community Centre |
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Clozier R.C. Church |
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Florida Community Centre |
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| St. Mark's |
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Diamond Boucan |
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Non-Pariel Community Centre |
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St. Mark/’s Secondary School |
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| St. Patrick's |
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Chantmelle Community Center |
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Mt. Rich Community Center |
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Hermitage Government School |
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River Sallee Government School |
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Sauteurs S.D.A |
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St. Patrick’s R.C. School |
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St. Patrick’s Anglican School |
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Mt. Rose S.D.A |
Information provided by Government Information Services