The National Hurricane Center (NHC) is a component of the National Centers for Environmental Prediction (NCEP) located at Florida International University in Miami, Florida. The NHC mission is to save lives, mitigate property loss, and improve economic efficiency by issuing the best watches, warnings, forecasts, and analyses of hazardous tropical weather and by increasing understanding of these hazards. The NHC vision is to be America's calm, clear, and trusted voice in the eye of the storm and, with its partners, enable communities to be safe from tropical weather threats. 

 The purpose of this site is to monitor the ability of various numerical weather prediction models to develop both extratropical and tropical cyclones. Initially, the site will contain track plots from various models, including the NCEP GFS, NCEP Eta, NCEP global ensemble, NCEP short range ensemble (SREF), UKMET and NOGAPS models. The plan is to eventually include performance and verification statistics as well. 

Dan Halperin (halpea17@erau.edu), Robert Hart (rhart@fsu.edu), and Ryan Remondelli (rremondelli@fsu.edu)
Florida State University Meteorology

NOTE: All products on these pages are experimental and should NOT be considered an official forecast. Please refer to the National Hurricane Center, Central Pacific Hurricane Center, or Joint Typhoon Warning Center for official forecasts.

Disclaimer : The tropical cyclone information displayed here is based on the latest NOAA and JTWC reports received here at CIMSS, and may or may not be the most current forecast available from these official forecasting agencies. CIMSS provides this product for the general public's viewing, but is not responsible for its ultimate use in the forecasting of tropical cyclones and/or the use of public watches/warnings. Concerned customers should confirm these prognostications with official sources (see our links section).

Note : If any of the images provided here are to be displayed elsewhere (internet, publications, etc.), please reference CIMSS. Thank you.

Vision

An informed society preparing for and responding to climate variations and their impacts.

Mission

CPC delivers real-time products and information that predict and describe climate variations on timescales from weeks to years thereby promoting effective management of climate risk and a climate-resilient society.

 Product Description
The Global Tropics Hazards Outlook is a probabilistic forecast for areas with elevated probabilities for above- or below-median rainfall, above- or below-normal temperatures and regions where tropical cyclogenesis is favored for the upcoming Week-2 and Week-3 time periods. The rainfall outlook is for precipitation integrated over a week and targets broad-scale patterns, not local conditions as they will be highly variable. Above (below) median rainfall forecast areas are depicted in green and brown respectively. Above (below) normal temperature forecast areas are depicted in orange and blue respectively. Favored areas for tropical development are shown in red. Three probability intervals are indicated for precipitation and temperature which are set at 50, 65, and 80%, while the probability intervals for tropical cyclone development are set at 20, 40, and 60%. The weekly verification period ranges from 00 UTC Wednesday to 00 UTC the following Wednesday.

Along with the product graphic, a written text outlook discussion is also included at release time. The narrative provides a review of the past week across the global Tropics, a description of the current climate-weather situation, the factors and reasoning behind the depicted outlook and notes on any other issues the user should be aware of. The discussion discusses the impacts in the Tropics as well as potential impacts in the Extratropics when relevant. 

The NASA Short-term Prediction Research and Transition (SPoRT) center was established in 2002 to transition NASA satellite products and capabilities to the operational weather community to improve short-term weather forecasting. A research-to-operations/operations-to-research paradigm has been the basis for transitioning over 50 satellite products to stakeholders over 20 years. Today SPoRT focuses on applied research and applications in 6 focus areas that span weather, atmospheric, and land surface topics with partnerships across government agencies, academia, and the private sector.

SPoRT is continuously expanding its suite of unique products that stem from SPoRT’s main research areas to develop, test, and transition user-driven science solutions to maximize the benefit of NASA’s satellite missions. Explore the following to access SPoRT’s near real-time data products, training tutorials, and research articles that bridge the gap between science and applications.

A link to Tropical forecasting models by Dr. Levi Cowman

A sustainable and resilient marine observation and monitoring infrastructure which enhances healthy ecosystems, communities, and economies in the face of change.

Collecting and disseminating in-situ, real-time, quality-controlled observations in the marine environment to ensure the Nation's maritime safety, and to understand and predict the atmosphere, ocean, waves, ice, and climate.

 This is the Storm Prediction Center's outlook for severe weather across the CONUS.

 This is Weather Prediction Center outlook for excessive rainfall totals across the CONUS.

  This is how you can see the Hurricane Hunter aircraft flights and drop sons data as they fly through the tropical storms and hurricanes.

Progress of the average Atlantic season (1991-2020). The date upon which the following number of events would normally have occurred. 

• Click Know Your Zone Map
• Type in your address
• Know Your Zone - Find if your address is in one of the colored evacuation zones (these are flood zones)
• If you are in an evacuation zone, listen to evacuation orders from local officials (Typically Zone A is the most vulnerable and the most likely to evacuate first. Zone E is most likely to evacuate last)
• If an evacuation order is not issued for your area, you may consider sheltering in place. Not all evacuations zones are always ordered.  
• If you shelter in place, it’s important to Know Your Home and its ability to withstand strong winds and heavy rain

This is a measurement of speed typically used in non-metric countries for transport such as the USA. The United Kingdom also uses this on the roads although officially the metric system has been adopted. Road speed limits are given in miles per hour which is abbreviated as mph or mi/h.

The presented information displays storm surge, flood, wind, and wave information from coastal ocean and inland flooding models.

Model data may not be a total water level guidance. Actual water levels can be significantly higher due to waves, river input, rainfall or other water sources currently not represented in a particular model.

Please always check with your regional National Weather Service forecast service for the official water level forecast.

This Audio Stream Player should not be used for protection of life or property.

The most recent list and status may not reflect real-time stream availability within the NWROrg nexus. Please remember that you should NOT rely on this Internet audio to receive watches or warnings. This stream player may serve as a proactive resource - a "pre-alert" preparation tool.

You should have your own dedicated NOAA or Environment Canada Weather Radio receiver which will alert you 24 hours a day with appropriate audio and/or visual outputs.

When seconds may count!

The audio may have a buffer delay as long as thirty seconds, plus any provider, network, or local stream delays. A small number of streams are 'Not Live' but recorded forecast statements from specific Weather Forecast Offices, such as NHC, MIA, MRX, etc. Such audio may not serve as an authoritative source for immediate impact warnings or advisories. In some events, such as Tornado Warnings, Network and other delays of several seconds may change your status from "Safe" to "Not Safe".

Additionally, a stream may be offline for various reasons when you may need it the most.
It is "best practice" to always rely on NOAA/EC receivers with battery back-up.

  PowerOutage.us is an ongoing project created to track, record, and aggregate power outages across the United States. Find out about us on our About page.
Click on a state to see more detailed info.
Data is updated site wide approximately every ten minutes. 

 This is the National Weather Service radar of the CONUS

Data and images hosted on the STAR webservers are not official NOAA operational products, and are provided only as examples for experimental use by remote sensing researchers, experienced meteorologists, or oceanographers. Although STAR provides "operational" data for some products, the STAR website primarily hosts examples of ongoing experimental product development. STAR pages and data sources may therefore be interrupted, changed, or canceled at any time without notice. STAR websites are not managed to meet operational data standards of uptime or redundant operations.

Some STAR teams provide links to products produced and hosted operationally outside of STAR, and/or use operational data to generate their experimental data products. Such products will be identified as having operational data sources as appropriate. However, STAR websites are provided for use by the public with the understanding that outages, changes, and data unavailability may occur without notice.

Data and images hosted on the STAR webservers are not official NOAA operational products, and are provided only as examples for experimental use by remote sensing researchers, experienced meteorologists, or oceanographers. Although STAR provides "operational" data for some products, the STAR website primarily hosts examples of ongoing experimental product development. STAR pages and data sources may therefore be interrupted, changed, or canceled at any time without notice. STAR websites are not managed to meet operational data standards of uptime or redundant operations.

Some STAR teams provide links to products produced and hosted operationally outside of STAR, and/or use operational data to generate their experimental data products. Such products will be identified as having operational data sources as appropriate. However, STAR websites are provided for use by the public with the understanding that outages, changes, and data unavailability may occur without notice.

 The maps display potential minimum pressure and maximum winds, calculated according to a method developed by Dr. Kerry Emanuel. Dissipative heating is handled according to a method described in Bister and Emanuel (1998). The maps are based on data from the 00Z global operational analysis from NCEP for the date shown on the plot. The top panel shows the potential minimum central pressure for a hurricane at any given location (in millibars). Only values less than 1000mb are shaded. Cyan squares indicate grid points where the algorithm failed to converge. Also shown are the sea surface temperatures (°C). The bottom panel shows the potential maximum wind speed expressed in terms of the type and severity of storm they would represent (TD = Tropical Depression, TS = Tropical Storm, H1-H5 = Hurricanes of category 1-5 on the Saffir-Simpson scale).