Cyclocane

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This is the final warning / advisory for this storm as it has weakened below warning levels and/or the storm system is no longer a tropical cyclone.

Go to the main page to see active storms.

Hurricane Time Machine

DON Current Status

...DON NOW A POST-TROPICAL CYCLONE... ...THIS IS THE LAST ADVISORY...

Current Wind Speed 40 knots / 45 MPH

Max Predicted Wind Speed 40 knots / 45 MPH at

Current Watches/Warnings / Radar / Satellite

current US watches/warnings

map of current weather alerts in the United States

current radar loop

NWS weather radar loop of the coastal areas

If you're looking for other US radar loops, check out Radar Monster.

future radar imagery

future radar image of the Atlantic Ocean basin showing future possible storms and future locations of current storms

(above image is an example of the Western North Atlantic page - see Atlantic future radar page for a full set of images)

If a tropical storm or hurricane is threatening land, you can check my future radar for an idea of what radar might look like as the storm approaches.

DON Land Hazards

NWS Local Hurricane Statements

DON Tracker

DON Satellite Loop

visible satellite loop of Post-Tropical Cyclone DON from wisc.edu

DON Alternate Tracking Map

DON Spaghetti Models

Spaghetti models for DON can be found here:

DON spaghetti models page »

DON Watches and Warnings

National Hurricane Center image showing current coastal watches and warnings and future DON predicted path

Post-Tropical Cyclone DON Tropical Cyclone Update

Post-Tropical Cyclone DON Public Advisory

000
WTNT35 KNHC 241502
TCPAT5
 
BULLETIN
Post-Tropical Cyclone Don Advisory Number  42
NWS National Hurricane Center Miami FL       AL052023
300 PM GMT Mon Jul 24 2023
 
...DON NOW A POST-TROPICAL CYCLONE...
...THIS IS THE LAST ADVISORY...
 
 
SUMMARY OF 300 PM GMT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...47.6N 40.7W
ABOUT 585 MI...940 KM E OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 300 PM GMT (1500 UTC), the center of Post-Tropical Cyclone Don
was located near latitude 47.6 North, longitude 40.7 West. The
post-tropical cyclone is moving toward the east-northeast near 20
mph (31 km/h), and this general motion is expected to continue until
dissipation tomorrow.
 
Maximum sustained winds are near 45 mph (75 km/h) with higher gusts.
Don should continue to gradually weaken, before dissipating
tomorrow.
 
Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.
 
The estimated minimum central pressure is 1007 mb (29.74 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
None
 
 
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane 
Center on this system. Additional information on this system can be 
found in High Seas Forecasts issued by the National Weather Service, 
under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at 
ocean.weather.gov/shtml/NFDHSFAT1.php
 
$$
Forecaster Kelly/Pasch

Public Advisory not available for this storm.

Post-Tropical Cyclone DON Forecast Discussion

147 
WTNT45 KNHC 241456
TCDAT5
 
Post-Tropical Cyclone Don Discussion Number  42
NWS National Hurricane Center Miami FL       AL052023
300 PM GMT Mon Jul 24 2023
 
Satellite imagery shows that Don lacks sufficient deep convection to 
classify the system as a tropical cyclone, and it is now post 
tropical.  The initial wind speed remains at 40 kt for this 
advisory, based on a recent ASCAT-B scatterometer pass.  Don should 
slowly weaken over the next day or so while moving over cold waters 
and within high vertical wind shear.

The system is moving east-northeastward at about 17 kt, and this
general motion will likely to continue until Don dissipates in
about a day.  Most of the global guidance has post-tropical Don
opening up into a trough and becoming absorbed by a larger
extratropical low over the north Atlantic tomorrow. Very few changes
were made to the previous NHC forecast.
 
Don has been a very long-lasting tropical cyclone (including
subtropical stages) for the month of July.  Preliminary data
indicate that the storm is the 5th longest-lasting system on record
for the month, just behind Emily of 2005.
 
This is the last advisory on Don.  Additional information on this
system can be found in High Seas Forecasts issued by the National
Weather Service...under AWIPS header NFDHSFAT1 and WMO header
FZNT01 KWBC, and online at
ocean.weather.gov/shtml/NFDHSDAT1.php
 
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  24/1500Z 47.6N  40.7W   40 KT  45 MPH...POST-TROPICAL
 12H  25/0000Z 48.1N  36.9W   35 KT  40 MPH...POST-TROPICAL
 24H  25/1200Z...DISSIPATED
 
$$
Forecaster Kelly/Pasch

DON storm path from NHC

Time Speed Location Status
40 knots 47.6, -40.7 translation missing: en.POST-TROPICAL
35 knots 48.1, -36.9 translation missing: en.POST-TROPICAL
0 knots translation missing: en.DISSIPATED


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