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2011 Changes to the Valid Types of Tropical Cyclones


Beginning with the 2011 season, the TROPICAL CYCLONE TYPE in the products issued by NHC, CPHC, and WFO Guam...and in the TCP products issued by HPC...will account for a broader range of tropical cyclone types. This change will occur in the Mass News Disseminator (MND) block.

The complete list of (TROPICAL CYCLONE TYPE) which may be used effective May 15, 2011 is:

TROPICAL DEPRESSION
TROPICAL STORM
HURRICANE
TYPHOON
SUBTROPICAL DEPRESSION
SUBTROPICAL STORM
POST-TROPICAL CYCLONE
REMNANTS OF


Affected Products

Product Type WMO Header AWIPS IDs
Tropical Cyclone Public Advisory WTNT31-35 KNHC (Atlantic)
WTPZ31-35 KNHC (Eastern Pacific)
WTCA41-45 TJSJ - Spanish
WTPA31-35 PHFO (Central Pacific)
WTNT31-35 KWNH (Conterminous US)
WTPQ31-35 PGUM (western N. Pacific)
TCPAT1-5 (Atlantic)
TCPEP1-5 (Eastern Pacific)
TCPSP1-5 - Spanish
TCPCP1-5 (Central Pacific)
TCPAT1-5 (Conterminous US)
TCPPQ1-5 (western N. Pacific)
Tropical Cyclone Forecast/Advisory WTNT21-25 KNHC (Atlantic)
WTPZ21-25 KNHC (Eastern Pacific)
WTPA21-25 PHFO (Central Pacific)
TCMAT1-5 (Atlantic)
TCMEP1-5 (Eastern Pacific)
TCMCP1-5 (Central Pacific)
Tropical Cyclone Discussion WTNT41-45 KNHC (Atlantic)
WTPZ41-45 KNHC (Eastern Pacific)
WTPA41-45 PHFO (Central Pacific)
TCDAT1-5 (Atlantic)
TCDEP1-5 (Eastern Pacific)
TCDCP1-5 (Central Pacific)
Tropical Cyclone Wind Speed Probabilities FONT11-15 KNHC (Atlantic)
FOPZ11-15 KNHC (Eastern Pacific)
FOPA11-15 PHFO (Central Pacific)
PWSAT1-5 (Atlantic)
PWSEP1-5 (Eastern Pacific)
PWSCP1-5 (Central Pacific)
Tropical Cyclone Update WTNT61-65 KNHC (Atlantic)
WTPZ61-65 KNHC (Eastern Pacific)
WTPA61-65 PHFO (Central Pacific)
TCUAT1-5 (Atlantic)
TCUEP1-5 (Eastern Pacific)
TCUCP1-5 (Central Pacific)
Tropical Cyclone Position Estimate WTNT51-55 KNHC (Atlantic)
WTPZ51-55 KNHC (Eastern Pacific)
WTPA51-55 PHFO (Central Pacific)
WTPQ51-55 PGUM (western N. Pacific)
TCEAT1-5 (Atlantic)
TCEEP1-5 (Eastern Pacific)
TCECP1-5 (Central Pacific)
TCEPQ1-5 (western N. Pacific)
Tropical Cyclone Aviation Advisory FKNT21-25 KNHC (Atlantic)
FKPZ21-25 KNHC (Eastern Pacific)
FKPA21-25 PHFO (Central Pacific)
TCANT1-5 (Atlantic)
TCAPZ1-5 (Eastern Pacific)
TCAPA1-5 (Central Pacific)


Old format of last advisory Example 1

000
WTNT25 KNHC 302033
TCMAT5

TROPICAL STORM SHARY FORECAST/ADVISORY NUMBER   8
NWS NATIONAL HURRICANE CENTER MIAMI FL   AL202010
2100 UTC SAT OCT 30 2010
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
TROPICAL STORM CENTER LOCATED NEAR 39.2N  50.9W AT 30/2100Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTHEAST OR  50 DEGREES AT  42 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  991 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT.......  0NE  40SE  30SW   0NW.
34 KT.......120NE 120SE 120SW   0NW.
12 FT SEAS..180NE  60SE  45SW 180NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
REPEAT...CENTER LOCATED NEAR 39.2N  50.9W AT 30/2100Z
AT 30/1800Z CENTER WAS LOCATED NEAR 37.9N  52.9W
 
FORECAST VALID 31/0600Z...ABSORBED BY FRONT
  
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.2N  50.9W
 
THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM.

$$
FORECASTER CANGIALOSI

New format for last advisory Example 1 (POST-TROPICAL CYCLONE)

000
WTNT25 KNHC 302033
TCMAT5

POST-TROPICAL CYCLONE SHARY FORECAST/ADVISORY NUMBER   8
NWS NATIONAL HURRICANE CENTER MIAMI FL   AL202010
2100 UTC SAT OCT 30 2010

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL STORM CENTER LOCATED NEAR 39.2N  50.9W AT 30/2100Z
POSITION ACCURATE WITHIN  20 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR  50 DEGREES AT  42 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  991 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT.......  0NE  40SE  30SW   0NW.
34 KT.......120NE 120SE 120SW   0NW.
12 FT SEAS..180NE  60SE  45SW 180NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 39.2N  50.9W AT 30/2100Z
AT 30/1800Z CENTER WAS LOCATED NEAR 37.9N  52.9W

FORECAST VALID 31/0600Z...ABSORBED BY FRONT

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.2N  50.9W

THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM.

$$
FORECASTER CANGIALOSI

Old format for last advisory Example 2

000
WTNT31 KNHC 292033
TCPAT1

BULLETIN
TROPICAL STORM NICOLE ADVISORY NUMBER   6
NWS NATIONAL HURRICANE CENTER MIAMI FL     AL162010
500 PM EDT WED SEP 29 2010
 
...NICOLE DISSIPATES OVER THE STRAITS OF FLORIDA...LARGE AREA OF
HEAVY RAINS PERSISTS...
 
 
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...24.5N 80.0W
ABOUT 175 MI...285 KM ENE OF HAVANA CUBA
ABOUT 165 MI...270 KM W OF NASSAU
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR
PRESENT MOVEMENT...NNE OR 20 DEGREES AT 12 MPH...19 KM/HR
MINIMUM CENTRAL PRESSURE...996 MB...29.41 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
 
THE GOVERNMENTS OF CUBA...GRAND CAYMAN...AND THE BAHAMAS HAVE
DISCONTINUED ALL TROPICAL STORM WARNINGS.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
NONE
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
 
 
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AIRCRAFT AND SURFACE OBSERVATIONS INDICATE THAT THE CIRCULATION OF
NICOLE HAS DEGENERATED INTO AN ELONGATED AREA OF LOW PRESSURE.

AT 500 PM EDT...2100 UTC...TROPICAL STORM NICOLE HAS DISSIPATED
NEAR LATITUDE 24.5 NORTH...LONGITUDE 80.0 WEST.  THE REMNANTS OF
NICOLE WERE MOVING TOWARD THE NORTH-NORTHEAST NEAR 12 MPH...19
KM/HR.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/HR...WITH HIGHER
GUSTS.  WINDS ASSOCIATED WITH THE REMNANTS OF NICOLE SHOULD
GRADUALLY SUBSIDE...BUT A STRONG NON-TROPICAL LOW PRESSURE SYSTEM
WITH GALE FORCE WINDS IS EXPECTED TO DEVELOP NEAR THE SOUTHEAST
U.S. COAST TONIGHT.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 345 MILES...555 KM
TO THE SOUTHEAST OF THE CENTER.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 996 MB...29.41 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
RAINFALL...NICOLE IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF
5 TO 10 INCHES OVER THE CAYMAN ISLANDS...JAMAICA...AND CUBA.
ISOLATED MAXIMUM AMOUNTS OF 20 INCHES ARE POSSIBLE OVER THE HIGHER
ELEVATIONS OF CUBA AND JAMAICA.  THESE RAINS COULD CAUSE
LIFE-THREATENING FLASH FLOODS AND MUD SLIDES.  STORM TOTAL RAIN
ACCUMULATIONS OF 5 TO 10 INCHES ARE POSSIBLE OVER PORTIONS OF
SOUTHERN FLORIDA...THE FLORIDA KEYS...AND THE CENTRAL AND 
NORTHWEST BAHAMAS.
 
WIND...WINDS TO TROPICAL STORM FORCE ARE POSSIBLE OVER EASTERN
CUBA...THE CENTRAL AND NORTHWEST BAHAMAS...AND ADJACENT WATERS
TONIGHT.
 
 
NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM.  ALTHOUGH NICOLE HAS DISSIPATED...THE
HYDROMETEOROLOGICAL PREDICTION CENTER IN WASHINGTON DC IS ISSUING
STORM SUMMARIES ON THE DEVELOPING NON-TROPICAL LOW UNDER AWIPS
HEADER NFDSCCNS5 AND WMO HEADER ACUS45 KWBC.  ADDITIONAL
INFORMATION CAN ALSO BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE
NATIONAL WEATHER SERVICE... UNDER AWIPS HEADER NFDHSFAT1 AND WMO
HEADER FZNT01 KWBC.
 
$$
FORECASTER BROWN/PASCH

New format for last advisory Example 2 (REMNANT LOW)

000
WTNT31 KNHC 292033
TCPAT1

BULLETIN
REMNANTS OF NICOLE ADVISORY NUMBER   6
NWS NATIONAL HURRICANE CENTER MIAMI FL     AL162010
500 PM EDT WED SEP 29 2010
 
...NICOLE DISSIPATES OVER THE STRAITS OF FLORIDA...LARGE AREA OF
HEAVY RAINS PERSISTS...
 
 
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...24.5N 80.0W
ABOUT 175 MI...285 KM ENE OF HAVANA CUBA
ABOUT 165 MI...270 KM W OF NASSAU
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NNE OR 20 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...996 MB...29.41 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
 
THE GOVERNMENTS OF CUBA...GRAND CAYMAN...AND THE BAHAMAS HAVE
DISCONTINUED ALL TROPICAL STORM WARNINGS.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
NONE
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
 
 
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AIRCRAFT AND SURFACE OBSERVATIONS INDICATE THAT THE CIRCULATION OF
NICOLE HAS DEGENERATED INTO AN ELONGATED AREA OF LOW PRESSURE.

AT 500 PM EDT...2100 UTC...TROPICAL STORM NICOLE HAS DISSIPATED
NEAR LATITUDE 24.5 NORTH...LONGITUDE 80.0 WEST.  THE REMNANTS OF
NICOLE WERE MOVING TOWARD THE NORTH-NORTHEAST NEAR 12 MPH...19
KM/H.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/H...WITH HIGHER
GUSTS.  WINDS ASSOCIATED WITH THE REMNANTS OF NICOLE SHOULD
GRADUALLY SUBSIDE...BUT A STRONG NON-TROPICAL LOW PRESSURE SYSTEM
WITH GALE FORCE WINDS IS EXPECTED TO DEVELOP NEAR THE SOUTHEAST
U.S. COAST TONIGHT.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 345 MILES...555 KM
TO THE SOUTHEAST OF THE CENTER.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 996 MB...29.41 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
RAINFALL...NICOLE IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF
5 TO 10 INCHES OVER THE CAYMAN ISLANDS...JAMAICA...AND CUBA.
ISOLATED MAXIMUM AMOUNTS OF 20 INCHES ARE POSSIBLE OVER THE HIGHER
ELEVATIONS OF CUBA AND JAMAICA.  THESE RAINS COULD CAUSE
LIFE-THREATENING FLASH FLOODS AND MUD SLIDES.  STORM TOTAL RAIN
ACCUMULATIONS OF 5 TO 10 INCHES ARE POSSIBLE OVER PORTIONS OF
SOUTHERN FLORIDA...THE FLORIDA KEYS...AND THE CENTRAL AND 
NORTHWEST BAHAMAS.
 
WIND...WINDS TO TROPICAL STORM FORCE ARE POSSIBLE OVER EASTERN
CUBA...THE CENTRAL AND NORTHWEST BAHAMAS...AND ADJACENT WATERS
TONIGHT.
 
 
NEXT ADVISORY
-------------
THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM.  ALTHOUGH NICOLE HAS DISSIPATED...THE
HYDROMETEOROLOGICAL PREDICTION CENTER IN WASHINGTON DC IS ISSUING
STORM SUMMARIES ON THE DEVELOPING NON-TROPICAL LOW UNDER AWIPS
HEADER NFDSCCNS5 AND WMO HEADER ACUS45 KWBC.  ADDITIONAL
INFORMATION CAN ALSO BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE
NATIONAL WEATHER SERVICE... UNDER AWIPS HEADER NFDHSFAT1 AND WMO
HEADER FZNT01 KWBC.
 
$$
FORECASTER BROWN/PASCH


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Page last modified: Wednesday, 20-Apr-2011 14:36:18 UTC