Liverpool England MSHPC Tropical Weather Updates

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Before a depression is recognised, it is usually tagged an "INVEST" storm - an area of low pressure with the potential to strengthen into a cyclone. INVESTs are tracked by the MSHPC's satellite bureau in Kompa Ru or the Warning sub-bureau in Cyclonesville with advisories, called Tropical Weather Updates effective 2144 (formerly known as INVEST tracker), on potential systems every 6 hours.

A trial run took place during February 2145 of issuances in Liverpool England's two other official languages, French and German, but both were rejected.

During the off-season, TWUs are only issued when there are active tropical cyclones or a high chance (above 50%) of formation of one. During the season, especially during anti-peaks of the season, the MSHPC may decide to reduce the frequency of TWU issuances to once a week.


HTWU TCWC HPCOR
0920/0900H TROPICAL WEATHER UPDATE
LIVERPOOL ENGLAND MET SERVICE HURRICANE PREDICTION CENTRE
OREAN, LIVERPOOL ENGLAND MSHPC HEADQUARTERS
SEP 20 2145 - 9 AM BULLETIN

AN AREA OF DISTURBED WEATHER HAS PERSISTED WEST OF CYCLONESVILLE
LIVERPOOL ENGLAND. THIS IS NOT A USUAL AREA FOR TROPICAL CYCLONE
FORMATION... AND IN FACT SSTS ARE ONLY ABOUT 24C. THERE IS THE
POTENTIAL FOR SOME DEVELOPMENT OF THIS SYSTEM INTO A SUBTROPICAL
DEPRESSION IN THE SHORT TERM... WHILE SHEAR REMAINS LOW. MOST
MODELS HAVE SHEAR PICKING UP IN ABOUT 72 HOURS. THIS SYSTEM HAS
HAD FLARING DEEP CONVECTION RECENTLY... AND SUBTROPICAL CYCLOGENESIS
WITHIN 24 HOURS IS RATED FAIR.

ELSEWHERE... NO TROPICAL CYCLONE FORMATION EXPECTED THROUGH
SEPT 21.

THE SEASON OFFICIALLY ENDS ON OCTOBER 1 AT MIDNIGHT HPT. AS
SUCH... THE FINAL TWU FOR THE SEASON WILL BE ISSUED AT 9 PM
HPT 30 SEPTEMBER. SHOULD ANY TROPICAL CYCLONE ACTIVITY TAKE
PLACE AFTER THAT... TWUS WILL BE ISSUED AT NORMAL TIMES UNTIL
ACTIVITY CEASES.

THE NEXT TWU WILL BE ISSUED AT 3 PM HPT.

FORECASTER CALTS