Forecasting Temperatures scaffolding activity
Introduction:
Forecasting temperatures requires the consideration of many factors; day or night, clear or cloudy skies, windy or calm, or will there be any precipitation?
Forecast and Discussion
By 7News Meteorologist Corey Christiansen at 6:30 a.m.
Tuesday -- December 23, 2008 ...
FORECASTING WEATHER IS FRUSTRATING WORK * THOSE WHO STUDY PATTERNS AND SYSTEMS MAKE PREDICTIONS FOR REST OF THIS YEAR, INTO NEXT.
By JEFF GELMAN, The Morning Call
Charles Giannetta hated being wrong about the weather.
forecasting the weather through digital computations carried out by supercomputers.
Occluded Front ...
The forecasting of the weather in the 0-6 hour timeframe is often referred to as nowcasting. It is in this range that the human forecaster still has an advantage over computer NWP models.
Ensemble Forecasting - Multiple predictions from an ensemble of slightly different initial conditions and/or various versions of models.
Probability forecast
A forecast of the probability of occurrence of one or more of a mutually exclusive set of weather conditions.
How Do Scientists Forecast the Birth of Hurricanes and Tropical Storms?
By Rachelle Oblack, About.com
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forecast amendment"An update to a forecast based on predetermined amendment criteria. The criteria are designed to fit a particular forecast, that is, wind speed, temperature, or precipitation.
Forecast Guidance - computer-generated forecast materials used to assist the preparation of a forecast ...
Forecast weather charts - issued twice each day with a commentary by the senior forecaster. (Available only on Weather by Fax)
Warnings - forecasts of hazardous weather, usually for the next 12 to 24 hours, including:
* ...
Forecast
Something that tells us what the weather is going to be like
Front ...
FORECAST A statement of expected future occurrences. Weather forecasting includes the use of objective models based on certain atmospheric parameters, along with the skill and experience of a meteorologist. Related term: prediction ...
forecast period - The time interval for which a forecast is made.
forerunner - The low-frequency ocean swell that commonly arrives at the coast before the primary swell generated by a distant storm.
Forecasts (Synonymous with predictions and outlooks) - A weather forecast, or prediction, is an estimation based on special knowledge of the future state of the atmosphere with respect to temperature, precipitation, and wind.
Forecast Models Forecasters use numerical weather models to make their forecasts. These numerical models are classified into four main classes. The first is global models, which focus on the entire northern hemisphere.
FORECAST PERIODS - Routine forecasts issued before noon contain three forecast periods: Today (or this Afternoon), Tonight, and the Next Day.
Forecast - A forecast provides a description of the most significant weather conditions expected during the current and following day. The exact content depends upon the intended user, such as the Public or Marine forecast audiences.
Forecast
(Meteorological Forecast, Weather Forecast) Statement of expected meteorological conditions for a specific period and for a specific area or portion of air space.
Forecast Point
In hydrologic terms, a location that represents an area (reach of a river), where a forecast is made available to the public.
Forecasting Skill - See Skill.
Freezing - The change of state from a liquid to a solid.
Freezing Nuclei - Solid pardcles that have a crystal form resembling that of ice; they serve as cores for the formation of ice crystals.
FA- Forecast Area
FAHRENHEIT- A temperature scale using 32 as freezing and 212 as boiling at standard sea-level atmospheric pressure and temperature.
FCST- Forecast ...
Zone Forecast Product (ZFP): This National Weather Service product will provide the general public with a clear statement of the expected weather conditions within a given county or set of counties.
WEATHER FORECAST
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COASTAL FORECAST: A forecast of wind, wave and weather conditions between the coastline and 60 miles offshore.
Weather Forecast Offices (WFOs) Offices of the National Weather Service charged with providing regional weather reports and forecasts.
Weather warning Warning issued when hazardous weather is observed or imminent.
Forecast Area
NOAA National Weather Service - Cite This Source - This Definition ...
Forecast MSL charts will also often show the 1000-500 hPa thickness as dashed lines. The thickness on these charts is usually given in decametres. So the 540 line indicates the 1000-500 hPa layer is 5400 metres deep.
A forecast of weather conditions for a period extending beyond three or more days from the day of issuance.
Meteorology ...
In forecasts, snowfall amounts are expressed as a range of values, e.g., "8 to 12 inches." However, in heavy snow situations where there is considerable uncertainty concerning the range of values, more appropriate phrases are used, such as "...
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Hurricane, tropical cyclone glossary
Definitions of terms used to describe tropical cyclones, including hurricanes ...
Weather Forecast: Anticipated report of the meteorological conditions for a specific place and for a certain period of time.
Wind: Horizontal movement of the air, relating to the surface of the Earth.
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Numerical Forecasting- Forecasting the weather through digital computations carried out by supercomputers.
Occluded Front- A boundary between cold and warm air masses that acts like a cold front in some areas and a warm front in others.
A weather forecaster who describes the upstream weather pattern as having positive vorticity is referring to the approach of a storm (low pressure center and associated front), ...
numerical forecasting—See numerical weather prediction.
numerical weather prediction—Forecasting by digital computers solving mathematical equations; used extensively in weather services throughout the world.
O ...
Most of the forecast is self-explanatory, but in the synoptic preamble, and in the weather reports which follows, some terms are used which may not be familiar.
Movement of pressure centres: (in forecast preamble/general situation)
Slowly ...
Persistence Forecast: A weather forecast that the future weather will be the same as the current conditions, e.g. tomorrow's weather will be the same as today's.
NGM - US Navy forecast model. See NOGAPS.
NHC - National Hurricane Center. US Government tropical weather specialist firm. Responsible for all tropical cyclone monitoring and forecasting in the Atlantic and Eastern Pacific basins.
Steady-state forecast A weather prediction based on the past movement of surface weather systems. It assumes that the systems will move in the same direction and at approximately the same speed as they have been moving.
River forecast A forecast of the expected stage or discharge at a specified time, or of the total volume of flow within a specified interval of time, at one or more points along a stream. River gauge A device for measuring the river stage.
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INFORMATION
CLASSIC SUPERCELL DIAGRAM ...
Watch the weather forecast on television or read the weather map in the newspaper. Save the maps for a month or more. You can see changes over time and compare conditions over several weeks and seasons.
MRF - Medium-Range Forecast model; one of the operational forecast models run at NCEP. The MRF is run once daily, with forecast output out to 240 hours (10 days).
It will contain the forecast point covered by the warning, the current stage (if it is available), and the established flood stage. It will also contain the forecasted crest from the River Forecast Center (RFC) in Minneapolis, Minnesota.
Extended outlookA basic forecast of general weather conditions three to five days in the future.Extratropical cycloneA storm that forms outside the tropics, sometimes as a tropical storm or hurricane changes.
Looping individual pictures aids meteorologists in forecasting. One way a picture can be taken is as a visible shot, that is best during times of visible light (daylight).
Prior to the issuance of a Tornado Watch, SPC will usually contact the affected local National Weather Forecast Office (NWFO) and they will discuss what their current thinking is on the weather situation.
The Center serves the public by assessing and forecasting the impacts of short-term climate variability, emphasizing enhanced risks of weather-related extreme events, for use in mitigating losses and maximizing economic gains.
Convective Outlook (sometimes called AC) - A forecast containing the area(s) of expected thunderstorm occurrence and expected severity over the contiguous United States, issued several times daily by the SPC.
National Severe torms Forecast Center, Kansas City, Missouri;
National Hurricane Center, Coral Gables, Florida.
NWS River Forecast Centers (RFCs) provide river stage and flood forecasts.
ECMWF - European Centre for Medium-range Weather Forecasts
EDC - EROS Data Center
EM - ElectroMagnetic
ENSO - El Niņo/Southern Oscillation
EOS - Earth Observing System ...
Invest: A weather system for which a tropical cyclone forecast center (NHC, CPHC, or JTWC) is interested in collecting specialized data sets (e.g., microwave imagery) and/or running model guidance.
Energy Helicity Index (or EHI) - An index that incorporates vertical shear and instability, designed for the purpose of forecasting supercell thunderstorms.
Total-Totals Index - A stability index and severe weather forecast tool, equal to the temperature at 850 mb plus the dew point at 850 mb, minus twice the temperature at 500 mb.
The idea is to allow smooth and effective communication between storm spotters and forecasters, and vice versa. This is an important necessity within the severe weather warning program. Despite advances in warning and forecasting techniques (e.g.
In weather analysis and forecasting, it usually refers to the vertical component of rotation (i.e. rotation about a vertical axis) and is used most often in reference to synoptic-scale or mesoscale weather systems.
Freezing Rain Advisory- Issued when freezing rain or freezing drizzle is forecast but a significant accumulation is not expected. However, even small amounts of freezing rain or freezing drizzle may cause significant travel problems.
High Wind Watch - Issued when conditions are favorable for the development of high winds over all of or part of the forecast area but the occurrence is still uncertain.
TAF: an international code (Aerodrome Forecast) used for issuing and transmitting weather forecasts.
 See also: Weather, Temperature, Air, Surface, Atmosphere
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