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BULLETIN
Tropical Storm Julia Intermediate Advisory Number 8A
NWS National Hurricane Center Miami FL       AL132022
800 AM EDT Sat Oct 08 2022
 
...AIR FORCE RESERVE HURRICANE HUNTERS INVESTIGATING JULIA...
...LIFE-THREATENING FLASH FLOODS AND MUDSLIDES POSSIBLE FROM HEAVY
RAINS OVER CENTRAL AMERICA THROUGH THE WEEKEND...
 
 
SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...12.8N 79.0W
ABOUT 165 MI...270 KM ESE OF ISLA DE PROVIDENCIA COLOMBIA
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 21 MPH...33 KM/H
MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* San Andres, Providencia, and Santa Catalina Islands Colombia
* Nicaragua from Bluefields to Puerto Cabezas
 
A Hurricane Watch is in effect for...
* Nicaragua north of Puerto Cabezas to the Honduras/Nicaragua border
 
A Tropical Storm Warning is in effect for...
* Nicaragua south of Bluefields to the Nicaragua/Costa Rica border
* Nicaragua north of Puerto Cabezas to the Honduras/Nicaragua border
 
A Tropical Storm Watch is in effect for...
* Honduras from the Nicaragua/Honduras border to Punta Patuca
 
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area.  A warning is typically issued
36 hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous.  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 within 36 hours.
 
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
 
Interests elsewhere along the Pacific coasts of Nicaragua, Honduras,
and El Salvador should monitor the progress of Julia, as watches
could be required for portions of these areas later today.
 
For storm information specific to your area, please monitor
products issued by your national meteorological service.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 800 AM EDT (1200 UTC), the center of Tropical Storm Julia was
located by an Air Force Reserve Hurricane Hunter aircraft near 
latitude 12.8 North, longitude 79.0 West.  Julia is moving toward 
the west near 21 mph (33 km/h). This general motion should continue 
through tonight, followed by a westward or west-northwestward motion 
at a slower forward speed on Sunday and Sunday night. On the 
forecast track, the center of Julia is expected to pass near or over 
San Andres and Providencia Islands this evening and then reach the 
coast of Nicaragua on Sunday morning.  Julia or its remnants will 
then turn west-northwestward near the Pacific coast of Central 
America by Monday.
 
Maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Steady to rapid strengthening is forecast while Julia moves
across the southwestern Caribbean Sea today and tonight, and the
system is expected to become a hurricane later today. Rapid
weakening is forecast after Julia moves inland on Sunday, and it is
likely to become a remnant low on Monday.
 
Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.
 
Data from the Air Force Reserve reconnaissance aircraft indicate 
that the minimum central pressure is 994 mb (29.35 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Julia can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC
and on the web at hurricanes.gov/text/MIATCDAT3.shtml.
 
WIND:  Hurricane conditions are expected on the Colombian islands of
San Andres, Providencia, and Santa Catalina by this evening, with
tropical storm conditions beginning this afternoon. Hurricane
conditions are expected along the coast of Nicaragua within the
hurricane warning area by Sunday morning, with tropical storm
conditions beginning by tonight. Hurricane conditions are possible
along the coast of Nicaragua within the hurricane watch area Sunday
morning.
 
Tropical storm conditions are expected along the coast of Nicaragua
within the tropical storm warning areas by tonight or early Sunday.
Tropical storm conditions are possible along the coast of Honduras
within the watch area on Sunday.
 
RAINFALL:  Julia is expected to produce the following rainfall
accumulations through early Monday:
 
San Andres and Providencia...6 to 12 inches.
Nicaragua...5 to 10 inches, isolated 15 inches.
Elsewhere in Central America...4 to 8 inches, isolated 12 inches.
Isthmus of Tehuantepec in Mexico...2 to 4 inches, isolated 6 inches.
 
This rainfall may cause life-threatening flash floods and mudslides
in Central America through this weekend. Flash flooding is possible
across the Isthmus of Tehuantepec in Mexico early next week.
 
STORM SURGE:  A storm surge is likely to raise water levels by as
much as 2 to 4 feet above normal tide levels along the immediate
coast in areas of onshore winds on San Andres, Providencia, and
Santa Catalina Islands. Near the coast, the surge will be
accompanied by large and damaging waves.
 
A storm surge could raise water levels by as much as 4 to 6 feet
above normal tide levels along the immediate coast of Nicaragua in
areas of onshore winds. Large and damaging waves will likely
accompany the storm surge near the coast.
 
SURF:  Swells generated by Julia are affecting Jamaica and are
expected to reach Providencia and San Andres Islands today, and
portions of the coast of Central America later today into Sunday.
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 EDT.
 
$$
Forecaster Berg
 
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