Cyclocane

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This storm is unnamed. If the information appears to be out of date, its name may have changed, so visit the main page for the latest information.

TWENTY-SIX Current Status

...TROPICAL DEPRESSION GETTING BETTER ORGANIZED... ...EXPECTED TO BECOME A TROPICAL STORM LATER TODAY...

Current Wind Speed 30 knots / 35 MPH

Max Predicted Wind Speed 90 knots / 105 MPH at

Current Watches/Warnings / Radar / Satellite

current US watches/warnings

current radar loop

future radar imagery

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TWENTY-SIX Land Hazards

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TWENTY-SIX Tracker

TWENTY-SIX Satellite Loop

TWENTY-SIX Alternate Tracking Map

TWENTY-SIX Spaghetti Models

Spaghetti models for TWENTY-SIX can be found here:

TWENTY-SIX spaghetti models page »

TWENTY-SIX Watches and Warnings

Tropical Depression TWENTY-SIX Tropical Cyclone Update

Tropical Depression TWENTY-SIX Public Advisory

605 
WTNT31 KNHC 050849
TCPAT1
 
BULLETIN
Tropical Depression Twenty-Six Advisory Number   3
NWS National Hurricane Center Miami FL       AL262020
500 AM EDT Mon Oct 05 2020
 
...TROPICAL DEPRESSION GETTING BETTER ORGANIZED...
...EXPECTED TO BECOME A TROPICAL STORM LATER TODAY...
 
 
SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...17.0N 78.2W
ABOUT 90 MI...145 KM S OF NEGRIL JAMAICA
ABOUT 255 MI...405 KM SE OF GRAND CAYMAN
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Watch is in effect for...
* Cuban provinces of Pinar del Rio and Artemisa
* Isle of Youth
 
A Tropical Storm Warning is in effect for...
* Cayman Islands including Little Cayman and Cayman Brac
 
A Tropical Storm Watch is in effect for...
* Cuba province of La Habana
 
A Hurricane Watch means that hurricane conditions are possible
within the watch area, generally within 48 hours.
 
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.
 
For storm information specific to your area, please monitor
products issued by your national meteorological service.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 AM EDT (0900 UTC), the center of Tropical Depression
Twenty-Six was located near latitude 17.0 North, longitude 78.2
West. The depression is moving toward the west-northwest near 9 mph
(15 km/h), and this general motion should continue for the next day
or so.  A faster northwestward motion is expected on Tuesday and
Wednesday.  On the forecast track, the center of the depression is
expected to move away from Jamaica through this morning, move near 
or over the Cayman Islands later tonight, and approach the Isle
of Youth and western Cuba Tuesday afternoon or evening. The tropical
cyclone is forecast to move into the southeastern Gulf of Mexico
Tuesday night or early Wednesday.
 
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Strengthening is expected during the next few days, and the
depression is forecast to become a tropical storm when it nears the
Cayman Islands later today, and be a hurricane when it moves near or
over western Cuba on Tuesday.
 
The estimated minimum central pressure is 1006 mb (29.71 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Tropical Depression Twenty-Six can be found
in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1,
WMO header WTNT41 KNHC, and on the web at
www.hurricanes.gov/text/MIATCDAT1.shtml.
 
STORM SURGE:  A dangerous storm surge will raise water levels by
as much as 3 to 5 feet above normal tide levels along the immediate
coast of the Isle of Youth and along the south coast of western
Cuba near and to right of where the center makes landfall. Near the
coast, the surge will be accompanied by large and dangerous waves.
 
RAINFALL:  Through midweek, this system is expected to produce 3 to
5 inches of rain with isolated maximum totals of 8 inches across
Jamaica and western Cuba. This rainfall could lead to significant
flash floods and mudslides. Over the Cayman Islands, 2 to 4 inches
of rainfall will be possible with this system.
 
WIND:  Tropical storm conditions are expected in the Cayman Islands
beginning late today.  Hurricane conditions are possible within
the Hurricane Watch area by Tuesday afternoon, with tropical storm
conditions possible by early Tuesday.  Tropical Storm conditions
are possible in the Tropical Storm Watch area in Cuba by early
Tuesday.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 800 AM EDT.
Next complete advisory at 1100 AM EDT.
 
$$
Forecaster Stewart

Public Advisory not available for this storm.

Tropical Depression TWENTY-SIX Forecast Discussion

088 
WTNT41 KNHC 050856
TCDAT1
 
Tropical Depression Twenty-Six Discussion Number   3
NWS National Hurricane Center Miami FL       AL262020
500 AM EDT Mon Oct 05 2020
 
Deep convection has been steadily improving in both vertical depth 
and structure, with the cloud pattern becoming more circular with 
upper-level outflow now having become established in all quadrants. 
However, there are still some indications in satellite imagery that 
the low-level and the mid-/upper-level circulations are not yet 
vertically aligned, with the low-level center still located just 
inside the northern edge of the convective cloud shield. For now, 
the initial intensity remains at 30 kt based on Dvorak satellite 
classifications from TAFB and SAB and also UW-CIMSS ADT. However, 
SATCON estimates suggest that the cyclone is close to tropical storm 
status.
 
The initial motion estimate is an uncertain 290/08 kt. Even after 
maintaining some continuity with the previous forecast, the initial 
position had to be adjusted a little farther to the south and 
west based on satellite animation, and the current position may 
have to be adjusted farther south on the next forecast cycle due to 
possible redevelopment of the center into the deep convective cloud 
mass. Otherwise, the previous forecast track reasoning remains 
essentially unchanged. The cyclone is expected to move 
west-northwestward to northwestward along the southern side of a 
deep-layer ridge for the next few days. By day 4 and beyond, a 
broad mid- to upper-level trough is forecast to develop across 
northern Mexico and Texas, which is expected to create a break in 
the ridge and turn the cyclone northward toward the north-central 
Gulf coast. The steering flow pattern becomes a little complex on 
days 2-3 due to expected binary interaction with Tropical Storm 
Gamma or its remnants, which could result in a sharp westward jog, 
after which a sharp turn back toward the northwest could occur. 
However, the latest NHC model guidance is in fairly good agreement 
that the cyclone will make a sharp northward turn between 90W-92W 
longitude around 96 hours or so. Thereafter, acceleration toward 
the north-northeast or northeast ahead of the approaching trough 
and frontal system is anticipated. The new NHC forecast track is a 
little to the left of the previous track through 72 hours, mainly 
to account for the more westward initial position, and lies down 
the middle of the tightly packed model guidance envelope.

The northeasterly deep-layer vertical wind shear that has been 
plaguing the cyclone is finally showing signs of abating. The GFS- 
and ECMWF-based SHIPS model guidance shows the shear decreasing to 
near zero in the 24-48 hour period, which allow for some robust 
intensification to occur, assuming that the inner-core wind field 
becomes better defined later today. By 96 hours and beyond, the 
SHIPS models are forecasting the shear to increase 20-30 kt from 
the southwest, which would be expected to induce rapid weakening. 
However, the SHIPS models appear to be creating too much shear 
over the cyclone's center by incorporating jetstream winds of about 
60 kt across Texas, whereas the 200-mb model fields only show winds 
of 10-15 kt over the center by 96 hours. As a result, the new 
intensity forecast calls for the cyclone to reach its peak 
intensity in the 72-96 hour period, followed by weakening due to 
likely cold upwelling of shallow cool shelf waters offshore the 
southwest coast of Louisiana and Mississippi. The new NHC intensity 
forecast is similar to the previous advisory, and lies near the 
upper end of the intensity guidance, similar to the 
corrected-consensus model HCCA.
 
Users are reminded that the average 4- and 5-day NHC track forecast
errors are about 160 to 200 miles at those time periods,
respectively.
 
Key Messages:
 
1. Tropical storm conditions are expected in the Cayman Islands
beginning late today, and a Tropical Storm Warning is in effect.
 
2. Dangerous storm surge and hurricane conditions are possible in
portions of western Cuba and the Isle of Youth by Tuesday
afternoon, and a Hurricane Watch is in effect.
 
3. Heavy rainfall will affect portions of Jamaica, the Cayman 
Islands, and western Cuba during the next few days. This rainfall 
could lead to significant flash flooding and mudslides.
 
4. The system is forecast to approach the northern Gulf Coast late
this week as a hurricane. While there is large uncertainty in the
track and intensity forecasts at these time ranges, there is a risk
of dangerous storm surge, wind, and rainfall hazards along the coast
from Louisiana to the western Florida Panhandle. Residents in these
areas should monitor the progress of the system and check for
updates to the forecast during the week.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  05/0900Z 17.0N  78.2W   30 KT  35 MPH
 12H  05/1800Z 17.4N  79.1W   35 KT  40 MPH
 24H  06/0600Z 18.6N  80.8W   45 KT  50 MPH
 36H  06/1800Z 20.5N  83.3W   60 KT  70 MPH
 48H  07/0600Z 22.5N  85.8W   70 KT  80 MPH
 60H  07/1800Z 24.4N  88.1W   80 KT  90 MPH
 72H  08/0600Z 25.9N  90.0W   90 KT 105 MPH
 96H  09/0600Z 28.0N  91.0W   85 KT 100 MPH
120H  10/0600Z 32.4N  88.7W   55 KT  65 MPH...INLAND
 
$$
Forecaster Stewart

TWENTY-SIX storm path from NHC

Time Speed Location Status
30 knots 17.0, -78.2
35 knots 17.4, -79.1
45 knots 18.6, -80.8
60 knots 20.5, -83.3
70 knots 22.5, -85.8
80 knots 24.4, -88.1
90 knots 25.9, -90.0
85 knots 28.0, -91.0
55 knots 32.4, -88.7 translation missing: en.INLAND


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