| Product Name |
Brief Description Click Here for "Printable" version of this list. |
| Tropical Cyclone Advisory Message | The Tropical Cyclone Advisory message (TCA) is an abbreviated
alphanumeric text product which the National Hurricane Center (NHC)
and the Central Pacific Hurricane Center (CPHC) issue. |
| Tropical Cyclone Cumulative Wind Distribution (CWD) Graphic | The CWD graphic is issued by the National Hurricane Center. It
summarizes how the size of a storm has changed, and the areas
potentially affected by sustained winds of tropical storm force (in
orange) and hurricane force (in red) for tropical cyclones in the
Atlantic and Eastern Pacific basins. This product is also issued for
subtropical storms. |
| Tropical Cyclone Danger Area | The Tropical Cyclone Danger Area is a graphical marine product
depicting a tropical cyclone's track (out to 72 hours) and shades in
a danger area determined by adding 100, 200, and 300 nautical miles
plus the 34 knot wind radii to the 24-, 48-, and 72- hour forecast
position respectively in the Atlantic and east Pacific. For the
central Pacific the shaded danger area will varying in width
dependent upon the hurricane specialists confidence in the track and
the length of the 34 knot wind radii. In addition, areas of possible
tropical cyclone genesis (out to 36 hours) are included and depicted
as either a circular, rectangle, oval, or polygon shaped area. The
product is prepared by the TPC and covers the entire Atlantic north
of the equator and the Pacific north of the equator from the Mexican
and Central America coast west to 140 west. CPHC prepares a
separate chart for 140 west to the International Dateline north of
the equator.
|
| Tropical Cyclone Discussion (TCD) | The TCD is a text product prepared by the National Hurricane Center
(NHC) and Central Pacific Hurricane Center (CPHC) for tropical
cyclones in their respective basin of responsibility. The TCD
provides forecasters' reasoning behind the analysis and forecast of a
tropical cyclone. Discussions include prognostic reasoning; objective
techniques employed; NHC, CPHC, and Hydrometeorological Prediction
Center guidance used; coordinated 12-, 24-, 36-, 48-, 72-, 96-, and
120-hour tropical cyclone forecast positions and maximum sustained
wind speed forecasts; other meteorological decisions; and plans for
watches and warnings. This product is also issued for subtropical
storms.
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| Tropical Cyclone Forecast Advisories (TCM) | The is a text product prepared by the National Hurricane Center (NHC)
and the Central Pacific Hurricane Center (CPHC) for tropical cyclones
in their respective basin of responsibility. TCMs are issued for the
Atlantic and eastern Pacific basins by the NHC. TCMs are issued for
the central Pacific by the CPHC. The product title depends on the
intensity of the tropical cyclone, to include: Tropical Depression
Advisory, Tropical Storm Advisory, Hurricane/Typhoon Advisory. This
product is also issued for subtropical storms.
|
| Tropical Cyclone Position Estimate (TCE) | The Tropical Cyclone Position Estimate (TCE) is an event-driven
(non-routinely issued) alphanumeric product comprised of information
concerning the location of the center of a tropical cyclone as
determined by land-based radar fixes. The National Hurricane Center
(NHC), the Central Pacific Hurricane Center (CPHC), and the Weather
Forecast Office (WFO) Guam prepare TCEs on an event-driven basis for
tropical cyclone activity within the effective range of land base
radars. NHC issues TCEs for tropical cyclone activity in the
Atlantic and eastern north Pacific (north of the equator and east of
140 degrees west longitude) basins. CPHC issues TCEs for tropical
cyclone activity in the central North Pacific (north of the equator
between 140W and 180W longitude) basin and WFO Guam for the northwest
Pacific (U.S. territories or the Republic of Palau, Federated States
of Micronesia, and Republic of the Marshall Islands north of the
equator and from 130W - 180W longitude).
|
| Tropical Cyclone Public Advisories (TCP) | The TCP is a text product prepared by the National Hurricane Center
(NHC), Central Pacific Hurricane Center (CPHC), and Weather Forecast
Office (WFO) Guam, for tropical cyclones in their respective basin of
responsibility. In the Atlantic and central Pacific TCPs are issued
for all tropical cyclones by NHC and CPHC, respectively. In the
eastern Pacific, NHC issues TCPs when watches or warnings are
required, or if the tropical cyclone is expected to impact nearby
land areas. In the western Pacific WFO Guam issues TCPs for all
tropical cyclones expected to affect land within 48 hours. The
product title depends on the intensity of the tropical cyclone, to
include: Tropical Depression Advisory, Tropical Storm Advisory,
Hurricane/Typhoon Advisory. This product is also issued for
subtropical storms. |
| Tropical Cyclone Report (TCR) | The Tropical Cyclone Report (TCR) is a post-event overview of a
tropical cyclone comprised of a narrative describing the overall
storm and a detailed listing of 6-hourly location and intensity data
in both text and graphic format. The National Hurricane Center (NHC)
and the Central Pacific Hurricane Center (CPHC) prepare TCRs within 90
days of any tropical cyclone that occurs within their respective Area
of Responsibility (AOR). NHC issues TCRs for tropical cyclone
activity in the Atlantic and eastern north Pacific (north of the
equator and east of 140 degrees west longitude) basins. CPHC issues
TCRs for tropical cyclone activity in the central North Pacific
(north of the equator between 140W and 180 degrees west longitude)
basin.
|
| Tropical Cyclone Storm Surge Probabilities | The product consists of a graphic and GRIB2 data for creating the
graphic for the Gulf of Mexico and Atlantic coastal areas of the
continental United States. The graphic shows probabilities, in
percent, of storm surge exceeding
5 feet. This storm surge graphic is based upon an ensemble of Sea,
Lake, and Overland Surge from Hurricanes (SLOSH) model runs using the
National Hurricane Center (NHC) official advisory and accounts for
track, size, and intensity errors based on historical errors.
|
| Tropical Cyclone Summary-Fixes (TCS) | The TCS is an alphanumeric product which the Central Pacific Hurricane
Center (CPHC) provides when there is a classifiable (using the Dvorak
technique) tropical cyclone activity in the north central or south
Pacific. The TCS is a satellite-based estimate of tropical cyclone
location, movement, and intensity with a brief remarks section.
Pacific Region's CPHC prepares TCS for a portion of their area of
responsibility (AOR). The AORs for CPHC/Weather Forecast Office
(WFO) Honolulu (CPHC is collocated with the Weather Forecast Office
Honolulu) varies depending upon the program (tropical cyclone,
aviation, marine, public, and satellite). For TCS program, CPHC's
AOR is the area north of the equator between 140W - 180 longitude and
from the equator to 25 S latitude between 120W to 160E.
|
| Tropical Cyclone Surface Wind Speed Probabilities - Graphical | The Tropical Cyclone Surface Wind Speed Probabilities product displays
probabilities in percent of sustained wind speeds equal to or
exceeding 34-, 50-, and 64-knot wind speed thresholds. These wind
speed probabilities are based on the track, intensity, and wind
structure uncertainties in the official forecasts from the National
Hurricane Center, Central Pacific Hurricane Center, and the Joint
Typhoon Warning Center. |
| Tropical Cyclone Surface Wind Speed Probabilities - Text | The Tropical Cyclone Surface Wind Speed Probabilities text product
contains two parts. The first part, called Maximum Wind Speed
(Intensity) Probability Table, provides over a five day period what
the probabilities are for the maximum sustained (1-minute average)
wind speed of a tropical cyclone for various intensity categories. A
second part, called Wind Speed Probability Table for Specific
Locations, provides probabilities, in percent, of sustained wind
speeds equal to or exceeding 34-, 50-, and 64-knot wind speed
thresholds. These wind speed probabilities are based on the track,
intensity, and wind structure uncertainties during recent years in
the official forecasts from the National Hurricane Center and the
Central Pacific Hurricane Center and are computed for coastal and
inland cities as well as offshore locations (e.g., buoys). |
| Tropical Cyclone Surface Wind Speed Probabilities in NDFD | The NWS provides access to operational and experimental gridded
forecasts of weather elements (e.g., maximum temperature, sky cover)
through the National Digital Forecast Database (NDFD). The NDFD
contains a seamless mosaic of digital forecasts from NWS field
offices working in collaboration with the National Centers for
Environmental Prediction (NCEP). The Tropical Cyclone Surface Wind
Speed Probabilities (TCSWSP) is an NCEP, event-driven product. The
TCSWSP is an experimental product which will be made available via
the NDFD. This product depicts probabilities, in percent, of
sustained surface wind speeds. These probabilities are expressed for
wind speed thresholds equal to or exceeding 34-, 50-, and 64-knots.
These wind speed probabilities are based on the track, intensity, and
wind structure (size in terms of radii) uncertainties in the official
forecasts from the National Hurricane Center (NHC). The product will
cover the continental U.S. and adjacent waters. |
| Tropical Cyclone Track and Watch/Warning Graphic | The Tropical Cyclone Track and Watch/Warning graphic contains the
storm's forecast track, a cone along the track based upon the average
area of uncertainty for the position of the center, and coastal
tropical storm and hurricane watches/warnings. The coastal watches
and warnings display shows an approximate representation of coastal
areas under a hurricane warning (red), hurricane watch (pink),
tropical storm warning (blue) and tropical storm watch (yellow). The
orange circle indicates the current position of the center of the
tropical cyclone. The black line and dots show the NHC forecast track
of the center at the times indicated. The NHC forecast tracks of the
center can be in error, and the white areas indicate the increasing
average area of uncertainty for the position of the center as a
function of time. This product is also issued for subtropical
storms.
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