Hurricane Fiona Public Advisory Number 23A

By | September 20, 2022

000
WTNT32 KNHC 200546
TCPAT2

BULLETIN
Hurricane Fiona Intermediate Advisory Number 23A
NWS National Hurricane Center Miami FL       AL072022
200 AM EDT Tue Sep 20 2022

...FIONA BECOMES A MAJOR HURRICANE AS IT APPROACHES THE TURKS AND 
CAICOS ISLANDS...
...HEAVY RAINFALL AND LIFE-THREATENING FLASH FLOODING STILL
OCCURRING IN EASTERN PORTIONS OF THE DOMINICAN REPUBLIC...


SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION
----------------------------------------------
LOCATION...20.9N 70.8W
ABOUT 45 MI...70 KM SSE OF GRAND TURK ISLAND
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...NNW OR 330 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...967 MB...28.56 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...
* Turks and Caicos

A Hurricane Watch is in effect for...
* Coast of the Dominican Republic from Cabo Caucedo to Puerto Plata

A Tropical Storm Warning is in effect for...
* Southeastern Bahamas, including the Acklins, Crooked Island, Long
Cay, the Inaguas, Mayaguana, and the Ragged Islands

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

A Hurricane Watch means that hurricane conditions are possible
within the watch area.

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

Interests in Bermuda should monitor the progress of Fiona.

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 of the United States, please monitor products issued by
your national meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 200 AM EDT (0600 UTC), the center of Hurricane Fiona was located
near latitude 20.9 North, longitude 70.8 West. Fiona is moving
toward the north-northwest near 10 mph (17 km/h). This general
motion is expected to continue through today, followed by a turn
toward the north tonight or Wednesday. On the forecast track,
the center of Fiona will pass near the easternmost Turks and Caicos 
during the next several hours.

Reports from an Air Force Reserve Hurricane Hunter aircraft indicate 
that the maximum sustained winds have increased to near 115 mph (185 
km/h) with higher gusts. Fiona is now a category 3 hurricane on the 
Saffir-Simpson Hurricane Wind Scale. Additional strengthening is 
expected during the next couple of days.

Hurricane-force winds extend outward up to 30 miles (45 km) from
the center and tropical-storm-force winds extend outward up to 150
miles (240 km).  Weather reports relayed by amateur radio indicate 
that sustained tropical-storm-force winds are occurring over 
portions of the Turks and Caicos islands.

The latest minimum central pressure reported by the Hurricane 
Hunter aircraft is 967 mb (28.56 inches).


HAZARDS AFFECTING LAND
----------------------
Key messages for Hurricane Fiona can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header
WTNT42 KNHC and on the web at hurricanes.gov/text/MIATCDAT2.shtml.

WIND: Hurricane conditions are expected in the Turks and Caicos
starting in the next several hours.  Tropical storm and hurricane 
conditions are possible within the hurricane watch area in the 
Dominican Republic for a few more hours.

Tropical storm conditions are expected in portions of the
southeastern Bahamas starting in the next several hours.

RAINFALL:  Fiona is forecast to produce the following rainfall:

British and U.S. Virgin Islands: Additional 2 to 4 inches. Storm
Total up to 10 inches on St. Croix.

Southern Puerto Rico: Additional 3 to 6 inches with local maximum of
8 inches. Storm Total 12 to 20 inches with local maximum of over 30
inches.

Northern Puerto Rico: Additional 1 to 3 inches with local maximum of
5 inches. Storm Total 4 to 12 inches with local maximum of 20
inches.

Northern and Eastern Dominican Republic: Additional 4 to 8 inches
with local maximum of 10 inches. Storm Total up to 20 inches in the
eastern section.

Rest of Dominican Republic and Eastern Haiti: 3 to 6 inches.

Turks and Caicos: 4 to 8 inches.

Southeast Bahamas: 1 to 3 inches.

These rains will continue to produce life-threatening and
catastrophic flooding along with mudslides and landslides across
Puerto Rico. Life-threatening flash and urban flooding is likely for
eastern portions of the Dominican Republic.

STORM SURGE:  The combination of storm surge and the tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline.

Storm surge could raise water levels by as much as 5 to 8 feet above
normal tide levels along the immediate coast in areas of onshore
winds in the Turks and Caicos through today.

Storm surge will raise water levels by as much as 1 to 3 feet above
normal tide levels along the immediate coast in areas of onshore
winds in the Dominican Republic.

Localized coastal flooding is possible for the Southeastern Bahamas
in areas of onshore winds through today.

SURF:  Swells generated by Fiona are affecting the Virgin Islands,
Puerto Rico, the northern coast of Hispaniola, the Turks and Caicos
Islands, and the southeastern Bahamas.  These swells will continue
to spread westward across the southwestern Atlantic toward the
central and northwestern Bahamas and the east coast of the United
States through midweek.  The swells could cause life-threatening
surf and rip current conditions.  Please consult products from your
local weather office.


NEXT ADVISORY
-------------
Next complete advisory at 500 AM EDT.

$$
Forecaster Beven

Leave a Reply