UNIQUE IDENTIFIER: r
TIME (e.g. 1800 UTC SAT FEB 22 2020): 0900 UTC MON AUG 30 2021
ADVISORY HEADLINE: JULIAN SCOOTS OFF THE NORTHEAST OPEN ATLANTIC AS A POST-TROPICAL CYCLONE


INPUT INTERP ATCF: al112021 ELEVEN 20210829 0900 38.1 -41.9 L EX 50.00 991.0 13.04 50.00
ADVISORY NUMBER: 2


NEXT ADVISORY TIME (e.g. SEP 16 2021, 1800 UTC)

Please allow time for floater to build.

• STORM FLOATER •

  L ()
PUBLIC ADVISORY #
FORCE THIRTEEN , 

 
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SUMMARY OF INFORMATION
-----------------------------------
LOCATION...NEAR    ...
MAXIMUM SUSTAINED WINDS...MPH...KM/H
MINIMUM CENTRAL PRESSURE...MB
 
WATCHES AND WARNINGS
-----------------------------------
There are no coastal watches or warnings in effect.

DISCUSSION
-----------------------------------
Julian has been showing signs of a transition into an extratropical 
cyclone over the past several hours. The deep convection has become 
detached to the northeast from the low-level center and cloud tops 
of that convection are warming. A line of convection to the south of 
the center resembles a frontal boundary, with recent scatterometer 
data showing a notable wind shift along that line. Based on the 
structural changes noted above, as well as a majority of FSU 
phase-space diagrams from the various global models, Julian is 
estimated to have transitioned to an extratropical cyclone. Recent 
ASCAT data showed the cyclone's intensity remains 50 kt. The cyclone 
is forecast to maintain this intensity through Monday before 
weakening. It is then forecast to dissipate in a few days over the 
northern Atlantic. The system should continue to move quickly 
northeastward through Monday, then turn northward and northwestward 
Monday night into Tuesday. 

LOCAL AND OFFICIAL SOURCES BELOW
National Hurricane Center (Atlantic)
 

 
$$
Forecaster 

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