Hurricane Irma

hurricane
irma

#1

#2

In case you’re not familiar with hurricane categories, they are measured on the Saffir Simpson Scale (categories 1 to 5). Check out the graphic below for a simple explanation. Thoughts and prayers to everyone being impacted by hurricanes this year.


#3

Here is the latest on the storm path:

Here is the current full advisory text:

== Full advisory text ============================

…EYE OF POTENTIALLY CATASTROPHIC CATEGORY 5 HURRICANE IRMA PASSES OVER ST. MARTIN…
…NORTHERN EYEWALL POUNDING ANGUILLA…

SUMMARY OF 800 AM AST…1200 UTC…INFORMATION

LOCATION…18.1N 63.3W
ABOUT 15 MI…25 KM W OF ST. MARTIN
ABOUT 15 MI…25 KM WSW OF ANGUILLA
MAXIMUM SUSTAINED WINDS…185 MPH…295 KM/H PRESENT MOVEMENT…WNW OR 285 DEGREES AT 16 MPH…26 KM/H MINIMUM CENTRAL PRESSURE…918 MB…27.11 INCHES

WATCHES AND WARNINGS

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for…

  • Antigua, Barbuda, Anguilla, Montserrat, St. Kitts, and Nevis
  • Saba, St. Eustatius, and Sint Maarten
  • Saint Martin and Saint Barthelemy
  • British Virgin Islands
  • U.S. Virgin Islands
  • Puerto Rico, Vieques, and Culebra
  • Dominican Republic from Cabo Engano to the northern border with Haiti
  • Guadeloupe
  • Southeastern Bahamas and the Turks and Caicos Islands

A Hurricane Watch is in effect for…

  • Haiti from the northern border with the Dominican Republic to Le Mole St. Nicholas
  • Turks and Caicos Islands
  • Southeastern Bahamas
  • Cuba from Matanzas province eastward to Guantanamo province
  • Central Bahamas

A Tropical Storm Warning is in effect for…

  • Dominican Republic from south of Cabo Engano westward to the southern border with Haiti

A Tropical Storm Watch is in effect for…

  • Haiti from south of Le Mole St. Nicholas to Port-Au-Prince

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion.

A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous.

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area.

A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours.

Interests elsewhere in the Dominican Republic and Haiti, as well as Cuba, the northwestern Bahamas, and Florida should monitor the progress of Irma.

For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside the United States, please monitor products issued by your national meteorological service.

DISCUSSION AND 48-HOUR OUTLOOK

At 800 AM AST (1200 UTC), the eye of Hurricane Irma was located near latitude 18.1 North, longitude 63.3 West. Irma is moving toward the west-northwest near 16 mph (26 km/h), and this general motion is expected to continue for the next couple of days. On the forecast track, the extremely dangerous core of Irma will move over portions of the northern Virgin Islands today, pass near or just north of Puerto Rico this afternoon or tonight, and pass near or just north of the coast of the Dominican Republic Thursday.

Maximum sustained winds remain near 185 mph (295 km/h) with higher gusts. Irma is a category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are likely during the next day or two, but Irma is forecast to remain a powerful category 4 or 5 hurricane during the next couple of days.

Hurricane-force winds extend outward up to 50 miles (85 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). A wind gust to 90 mph (146 km/h) was recently on the island of St. Eustatius located south of the eye of Irma. A NOAA National Ocean Service station on Barbuda reported sustained winds of 118 mph (190 km/h) with a gust to 155 mph (249 km/h) before the instrument failed earlier this morning.

The estimated minimum central pressure based on data from an Air Force Reserve aircraft and earlier surface observations is 918 mb
(27.11 inches). A NOAA National Ocean Service station on Barbuda reported a minimum pressure of 916.1 mb (27.05 inches) earlier this morning.

HAZARDS AFFECTING LAND

STORM SURGE: The combination of a life-threatening storm surge and large breaking waves will raise water levels ABOVE NORMAL TIDE LEVELS by the following amounts within the hurricane warning area near and to the north of the center of Irma. Near the coast, the surge will be accompanied by large and destructive waves.

Northern Leeward Islands…7 to 11 ft
Turks and Caicos Islands…15 to 20 ft
Southeastern Bahamas…15 to 20 ft
Northern coast of the Dominican Republic…3 to 5 ft Northern coast of Haiti and the Gulf of Gonave…1 to 3 ft

The combination of a life-threatening storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water is expected to reach the following HEIGHTS ABOVE GROUND if the peak surge occurs at the time of high tide…

British and U.S. Virgin Islands except St. Croix…7 to 11 ft Northern coast of Puerto Rico…3 to 5 ft Southern coast of Puerto Rico and St. Croix…1 to 2 ft

The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and destructive waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office.

WIND: Hurricane conditions will continue today within the hurricane warning area in the Leeward Islands. Hurricane conditions are expected to begin within the British and U.S. Virgin Islands this morning and spread westward over portions of Puerto Rico later today. Hurricane conditions are expected to begin within the hurricane warning area in the Dominican Republic early Thursday, with tropical storm conditions beginning tonight. Hurricane conditions are expected in the warning area in the southeastern Bahamas and the Turks and Caicos Islands beginning Thursday night.

Hurricane and tropical storm conditions are possible within the watch area in Haiti by early Thursday and in the central Bahamas and Cuba by Friday.

RAINFALL: Irma is expected to produce the following rain accumulations through Thursday:

Northern Leeward Islands…8 to 12 inches, isolated 20 inches Northeast Puerto Rico and the British and U.S. Virgin Islands…4 to
10 inches, isolated 15 inches Southwest Puerto Rico, the southern Leeward Islands, and Saint Croix…2 to 4 inches

Irma is expected to produce the following rain accumulations Wednesday through Saturday:

Southeast Bahamas, the Turks and Caicos and eastern to central
Cuba…8 to 12 inches, isolated 20 inches Northern Dominican Republic and northern Haiti…4 to 10 inches, isolated 15 inches Southwest Haiti…1 to 4 inches

In all areas this rainfall may cause life-threatening flash floods and mudslides.

SURF: Swells generated by Irma will affect the northern Leeward Islands, Puerto Rico, the Virgin Islands, the southeastern Bahamas, the Turks and Caicos Islands, the northern coast of the Dominican Republic, and portions of the southeast coast of the United States during the next several days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.

NEXT ADVISORY

Next complete advisory at 1100 AM AST.


#4

The latest…

…EXTREMELY DANGEROUS HURRICANE IRMA HEADING FOR THE TURKS AND
CAICOS ISLANDS…
…HURRICANE AND STORM SURGE WATCH ARE IN EFFECT FOR PORTIONS OF
SOUTH FLORIDA AND THE FLORIDA KEYS…

SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION

LOCATION…20.4N 69.7W
ABOUT 75 MI…125 KM ENE OF PUERTO PLATA DOMINICAN REPUBLIC
ABOUT 120 MI…190 KM SE OF GRAND TURK ISLAND
MAXIMUM SUSTAINED WINDS…175 MPH…280 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 16 MPH…26 KM/H
MINIMUM CENTRAL PRESSURE…921 MB…27.20 INCHES

WATCHES AND WARNINGS

CHANGES WITH THIS ADVISORY:

A Storm Surge Watch has been issued for the Florida peninsula from
Jupiter Inlet southward and around the peninsula to Bonita Beach,
including the Florida Keys.

A Hurricane Watch has been issued for the Florida peninsula from
Jupiter Inlet southward and around the peninsula to Bonita Beach,
including the Florida Keys, Lake Okeechobee, and Florida Bay.

The government of Cuba has extended the Tropical Storm Warning to
Villa Clara province.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Watch is in effect for…

  • Jupiter Inlet southward around the Florida peninsula to Bonita
    Beach
  • Florida Keys

A Hurricane Warning is in effect for…

  • Dominican Republic from Cabo Engano to the northern border with
    Haiti
  • Haiti from the northern border with the Dominican Republic to Le
    Mole St. Nicholas
  • Southeastern Bahamas and the Turks and Caicos Islands
  • Central Bahamas
  • Northwestern Bahamas

A Hurricane Watch is in effect for…

  • Jupiter Inlet southward around the Florida peninsula to Bonita
    Beach
  • Florida Keys
  • Lake Okeechobee
  • Florida Bay
  • Cuba from Matanzas province eastward to Guantanamo province

A Tropical Storm Warning is in effect for…

  • Dominican Republic from south of Cabo Engano westward to the
    southern border with Haiti
  • Haiti from south of Le Mole St. Nicholas to Port-Au-Prince
  • Cuba provinces of Guantanamo, Holguin, Las Tunas, Camaguey, Ciego
    de Avila, Sancti Spiritus and Villa Clara.

#5

Relatively good news for the Dominican Republic. Prayers for those in Miami.

…IRMA MOVING THROUGH THE SOUTHEASTERN BAHAMAS AS AN EXTREMELY
DANGEROUS CATEGORY 4 HURRICANE…

SUMMARY OF 500 AM EDT…0900 UTC…INFORMATION

LOCATION…21.7N 73.8W
ABOUT 55 MI…90 KM NW OF GREAT INAGUA ISLAND
ABOUT 495 MI…795 KM SE OF MIAMI FLORIDA
MAXIMUM SUSTAINED WINDS…155 MPH…250 KM/H
PRESENT MOVEMENT…WNW OR 285 DEGREES AT 16 MPH…26 KM/H
MINIMUM CENTRAL PRESSURE…925 MB…27.32 INCHES

WATCHES AND WARNINGS

CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for…

  • Jupiter Inlet southward around the Florida peninsula to Bonita
    Beach
  • Florida Keys

A Storm Surge Watch is in effect for…

  • North of Jupiter Inlet to Sebastian Inlet
  • North of Bonita Beach to Venice

A Hurricane Warning is in effect for…

  • Jupiter Inlet southward around the Florida peninsula to Bonita
    Beach
  • Florida Keys
  • Lake Okeechobee
  • Florida Bay
  • Haiti from the northern border with the Dominican Republic to Le
    Mole St. Nicholas
  • Southeastern Bahamas and the Turks and Caicos Islands
  • Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus, and
    Villa Clara
  • Central Bahamas
  • Northwestern Bahamas

A Hurricane Watch is in effect for…

  • North of Jupiter Inlet to Sebastian Inlet
  • North of Bonita Beach to Anna Maria Island
  • Cuban provinces of Guantanamo, Holguin, Las Tunas and Matanzas

A Tropical Storm Warning is in effect for…

  • Haiti from south of Le Mole St. Nicholas to Port-Au-Prince
  • Cuban provinces of Guantanamo, Holguin, and Las Tunas

#6

Better news for Miami, but Florida in general is going to have a rough time with Irma.

…EYE OF IRMA BEGINNING TO MOVE SLOWLY AWAY FROM THE COAST OF CUBA
WHILE WEATHER IS DETERIORATING IN SOUTH FLORIDA…
…MAJOR HURRICANE FORCE WINDS EXPECTED OVER THE FLORIDA KEYS AT
DAYBREAK…

SUMMARY OF 500 PM EDT…2100 UTC…INFORMATION

LOCATION…23.4N 80.5W
ABOUT 50 MI…80 KM ENE OF VARADERO CUBA
ABOUT 115 MI…190 KM SE OF KEY WEST FLORIDA
MAXIMUM SUSTAINED WINDS…125 MPH…205 KM/H
PRESENT MOVEMENT…WNW OR 295 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…933 MB…27.55 INCHES

WATCHES AND WARNINGS

CHANGES WITH THIS ADVISORY:

The Storm Surge Warning has been extended from the Volusia/Brevard
County Line northward to the South Santee River.

The Hurricane Watch west of the Aucilla River to Indian Pass has
been upgraded to a Hurricane Warning, and the Tropical Storm Watch
west of Indian Pass to the Okaloosa/Walton County Line has been
upgraded to a Tropical Storm Warning.

A Tropical Storm Warning has been issued north of Fernandina Beach
to South Santee River.

The government of Cuba has discontinued the watches and warnings for
Holguin and Las Tunas provinces.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for…

  • South Santee River southward around the Florida peninsula to the
    Suwanee River
  • Florida Keys
  • Tampa Bay

A Storm Surge Watch is in effect for…

  • North of the Suwanee River to Ochlockonee River

A Hurricane Warning is in effect for…

  • Fernandina Beach southward around the Florida peninsula to Indian
    Pass
  • Florida Keys
  • Lake Okeechobee
  • Florida Bay
  • Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus,
    Villa Clara, Matanzas, and Havana
  • Andros Island, Bimini and Grand Bahama

A Hurricane Watch is in effect for…

  • North of Fernandina Beach to Edisto Beach

A Tropical Storm Warning is in effect for…

  • West of Indian Pass to the Okaloosa/Walton County Line
  • North of Fernandina Beach to South Santee River