| Product Name |
Brief Description |
View PDD |
| (Click to see details) |
|
(Shift-Click to get file) |
| Graphical Turbulence Guidance | The Graphical Turbulence Guidance (GTG) is an automatically generated turbulence product that predicts the location and intensity of turbulence over the continental United States (CONUS). | GTG2.pdf |
| Grassland Fire Danger Index for the Kansas Plains | The Grassland Fire Danger Index (GFDI) product/service is a text and graphical representation of the Grassland Fire Danger Index values that correspond to the likelihood that fires will get out of control. Three-hourly GFDI values will be represented, giving customers a clear indication of not only the index value but also the time and duration of the values at a specific grid location | GFDI_PDD_operational.pdf |
| Great Lakes Break-up Outlook Product | Issued in March. Provides guidance on when any ice remaining on the Great Lakes will dissipate. | GLBO.pdf |
| Great Lakes Ice Outlook | Issued during winter. Provides guidance on expected ice growth and decay on the Great Lakes. | GLIO.pdf |
| Great Lakes Marine Alert Message | Alerts users of forecast storm or hurricane force winds on any of the Great Lakes.
| GLMAM.pdf |
| Great Lakes Storm Summary | Provides information on the occurrence of storm or hurricane force winds on any of the Great Lakes. | GLSS.pdf |
| Gridded Day 2 and Day 3 Excessive Precipitation Forecast | The Gridded Day 2 and Day 3 Excessive Precipitation Forecasts are display the probability of precipitation amounts exceeding the flash flood guidance values issued by the River Forecast Centers at the time of product issuance. The product displays areas for the continental United States where the probability of precipitation amounts exceeding flash flood guidance is slight (defined as threat in the range 5 percent to less than 10 percent), moderate (defined as threat from 10 percent to less than 15 percent), and high (defined as threat 15 percent or greater). The River Forecast Centers do not currently issue flash flood guidance for days 2 and 3 so at this time the product will be based on the day 1 flash flood guidance.
| ExcessivePrecipDay2&3.pdf |
| Gridded Graphical Hazardous Weather Outlook | The Melbourne Weather Forecast Office (WFO) Gridded Graphical Hazardous Weather Outlook (gHWO) complements the text Hazardous Weather Outlook (HWO) by providing a graphical depiction of threat levels for the following hazards: lightning, tornado, wind, hail, (flash) flood, excessive heat, excessive cold, high wind, dense fog/smoke, fire weather, rip current, coastal flood, waterspout, marine wind/sea, and marine thunderstorm gust. The threat impacts are specific to the WFO county warning area (CWA) and marine area of responsibility (MAOR), and depict the geographical distribution and level of threat of each hazard. | MLB_GHWO_PDD-1.pdf |
| Gridded Weather Input for Fire Area Simulation Model (FARSITE) | FARSITE is a deterministic model developed and used by land management agencies. FARSITE simulates the spatial and temporal spread and behavior of fires under conditions of heterogeneous terrain, fuels, and weather. Required FARSITE weather input consists of maximum and minimum relative humidity, maximum and minimum temperature, daily precipitation, wind speed and direction and cloud cover. FARSITE is an important tool that fire agencies use to help keep firefighters safe. Pursuant to the NWS mission of saving lives and property, NOAA/NWS forecasters have been manually supplying FARSITE weather input to fire managers for a number of years. | FARSITEPDD.pdf |
| Hawaiian One-Month and Three-Month Outlooks and Discussion. | The Climate Prediction Center (CPC) issues a one-month and a series of thirteen three-month temperature and precipitation outlooks for selected cities in Hawaii and an accompanying prognostic discussion. | H1&3MO&D_v2.pdf |
| Hazard Grids in the National Digital Forecast Database | The NWS provides access to operational and experimental gridded forecasts of weather elements (e.g., maximum temperature, sky cover)through the 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 hazard grids are prepared by all Weather Forecast Offices (WFO) and are available via the NDFD. Hazard grids are valid for more than two hours. The hazard grids depict all active long duration watch, warning and advisory hazards issued by NWS WFOs . The hazard grids include long duration coastal, marine, nonprecipitation, tropical and winter weather hazards. It also includes convective and some hydrological watches. It does not include the following short duration warnings: Tornado Warning, Severe Thunderstorm Warning, Extreme Wind Warning, Flash Flood Warning, and Special Marine Warning. It does not include the following Long Duration Watches and Warnings issued in RiverPro and WarnGen:Flood Watch for forecast points, Areal Flood Warnings and Flood Warnings for forecast points. In addition, it initially will not include Gale Warnings, Storm Warnings and Hurricane Force Wind Warnings issued in the Offshore and High Seas forecast by OPC and TAFB. The NDFD Hazard grid definition is defined as,a weather or hydrologic hazardous event issued for the protection of life and property and the enhancement of the national economy.
The Hazards grid will be in experimental status in the NWS Alaska Region until further notice. | HazardsGrid.pdf |
| High Seas Forecast | Describes potentially hazardous weather across large areas of the open ocean. | HSF.pdf |
| High Surf Advisory | Provides notification of potentially life threatening surf conditions | HSAd.pdf |
| HotSeat Warning Simulator | HotSeat is a web-based warning simulation tool. It uses archived WSR-88D data from actual events along with severe weather reports and damage survey photographs in a displaced real-time (DRT) mode to approximate the feel of issuing severe weather warnings in the National Weather Service. Upon completion of each event, the participant receives a score indicating his/her success in the simulation. | HotSeat.pdf |
| Hours of Sunshine and Percent of Possible Sunshine Products | The Hours of Sunshine and Percent of Possible Sunshine Products will be graphical displays on the Internet of the number of hours of sunshine expected and the percent of total possible sunshine expected across the (PDT) County Warning Area (CWA). The products will be updated with each major Zone Forecast issuance. At 4 AM local Pacific Time, the forecasts will be for today and tomorrow. At 3 PM local Pacific Time, the forecasts will be for tomorrow and the day after tomorrow. | sunpdd-1.pdf |
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