Difference between revisions of "Liverpool England MSHPC Tropical Weather Updates"

Revision as of 05:01, 4 October 2006

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.

Beginning February 7, 2145, the MSHPC has released its advisories in two of Liverpool England's three official languages – English and French, with the French translation originally provided by the Oliverrian government, and on Feburary 11, German advisories were also released, both new languages as test products. When the service was temporarily discontinued in February 2145, it was decided that French products would continue to be released, but not German ones, but in longer intervals. Rather than one advisory every six hours, which is the frequency of English releases, there would be only one advisory every 18 hours. When it was revealed that the French advisories were not reaching its target audience, the product was scrapped.

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 lulls (usually mid-March to mid-June/early July), the MSHPC may decide to reduce the frequency of TWU issuances to once a week.

HTWU TCWC HPCOR
0614/0300H TRACKING ADVISORY
OREAN, LIVERPOOL ENGLAND MSHPC HEADQUARTERS
JUN 14 2145 - 3 AM BULLETIN

ACTIVE TROPICAL CYCLONES...
THE MSHPC IS ISSUING ADVISORIES ON HURRICANE GRIEL... NOW A
CATEGORY FIVE HURRICANE LOCATED JUST TO THE EAST OF THE PAX
MERIDIAN.

ELSEWHERE... 
THE MSHPC IS MONITORING TROPICAL STORM CHARLES-LYDIA... LOCATED
NORTHEAST OF DRESFORD BEDISTAN.

A LOW-PRESSURE SYSTEM NOW TO THE NORTHEAST OF LOX LAND ISLAND
SHOWS NO MAJOR INCREASE IN ORGANISATION... ALTHOUGH SSTS AND
UPPER-LEVEL CONDITIONS REMAIN RELATIVELY CONDUCIVE FOR DEVELOPMENT.
A TROPICAL DEPRESSION... OR TROPICAL STORM... COULD FORM WITHIN
THE NEXT DAY OR TWO. SEE HTCFW/TCFA01.

HTCFW/TCFA...
HTCFW/TCFA01 ISSUED 6 PM HPT JUNE 13
   THE AREA OF LOW PRESSURE NEAR 45.0 NORTH LATITUDE 25.2 EAST LONGITUDE
   ... JUST OFF THE NORTHEASTERN COAST OF LOX LAND ISLAND... HAS PERSISTED
   FOR THE PAST 18 HOURS OR SO. MAXIMUM SUSTAINED WINDS ARE ESTIMATED NEAR
   30 KT... MINIMUM CENTRAL PRESSURE ESTIMATED NEAR 1007 HPA. AVAILABLE
   INFORMATION DOES NOT JUSTIY ISSUANCE OF NUMBERED WARNINGS. THERE IS
   EVIDENCE OF AN ANTICYCLONE OVER THIS SYSTEM... AND SSTS ARE NEAR 29
   CELSIUS. THE SYSTEM HAS A CLOSED CIRCULATION... AND AS IT MOVES EAST-
   NORTHEASTWARD BACK OVER SEA THE POTENTIAL FOR DEVELOPMENT WITHIN 24 HOURS
   IS RATED GOOD. A NEARBY TROUGH WILL CONTRIBUTE... AND DVORAK NUMBERS ARE 
   1.5/1.5/1.5 FROM HDCW/UHWF/HWS... TOTALLING 35 POINTS. THE HEARTLAND TC
   FORMATION WARNING ORIGINALLY ISSUED AT 12 PM IS BEING REISSUED FOR THE
   NEXT 24 HOURS FOR THE WHOLE LOX GULF... ESPECIALLY JUST NORTH OF LOX LAND.
   TCWC LLIWO HAS CLASSIFIED THIS LOW AS NON-TROPICAL... BUT SATELLITE
   IMAGERY DISAGREES. TROPICAL CYCLONE WARNINGS WILL BE INITIATED WITHIN
   24 HOURS... OR THIS ALERT WILL BE REISSUED... OR CANCELLED... WITHIN 24
   HOURS.

OTHERWISE... NO TROPICAL CYCLONE FORMATION IN THE HEARTLAND IS EXPECTED
THROUGH JUNE 21.

NEXT TWU AT 9 AM HPT.

FORECASTER CALTS