Observation(s)
- Browse Related Terms: AMOS, Blowing, Cooperative Observer, GoMoos, Hourly Precipitation Data (HPD), Isochrone, Mesonet, Meteogram, Nadir, OBS, parameter, Rawinsonde Observation, Reconnaissance Code, report, Station Model, Upper Level
Obscure
- Browse Related Terms: BASE DATA, BASE PRODUCTS, Base Reflectivity, Layer Composite Reflectivity Average, Layer Composite Reflectivity Maximum, OBSC, Radar Range, Range, Reflectivity Cross Section, Severe Weather Analysis, Spectrum Width Cross Section, Storm Relative Mean Radial Velocity Map, Storm Relative Mean Radial Velocity Regi, Storm Tracking Information, VAD, Weak Echo Region
Any atmospheric phenomenon, except clouds, that restricts vertical visibility (e.g., dust, rain, snow, etc.).
- Browse Related Terms: Condensation Funnel, D, Debris Cloud, Dry Microburst, Dust Devil, Dust Plume, Dust Whirl, funnel cloud, Gunge, Landspout, Multiple Vortex Tornado, Obscuration, Obscuring Phenomena, ROTG, SUF, Tornado, Waterspout, Whirlwind
Any atmospheric phenomenon, except clouds, that restricts vertical visibility (e.g., dust, rain, snow, etc.).
- Browse Related Terms: Condensation Funnel, D, Debris Cloud, Dry Microburst, Dust Devil, Dust Plume, Dust Whirl, funnel cloud, Gunge, Landspout, Multiple Vortex Tornado, Obscuration, Obscuring Phenomena, ROTG, SUF, Tornado, Waterspout, Whirlwind
In hydrologic terms, a non-pumping well used for observing the elevation of the water table or piezometric surface
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A composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front. Two types of occlusions can form depending on the relative coldness of the air behind the cold front to the air ahead of the warm or stationary front. A cold occlusion results when the coldest air is behind the cold front and a warm occlusion results when the coldest air is ahead of the warm front.
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A mesocyclone in which air from the rear-flank downdraft has completely enveloped the circulation at low levels, cutting off the inflow of warm unstable low-level air.
- Browse Related Terms: CFP, Cold Occlusion, FROPA, Katafront, Occluded Front, Occluded Mesocyclone, OCFNT, PSG, Stationary Front, Warm Occlusion, Warm Sector, WFP, Wrapping Gust Front, WRM, WRMFNT
The study of the ocean, embracing and integrating all knowledge pertaining to the ocean's physical boundaries, the chemistry and physics of sea water, and marine biology.
- Browse Related Terms: EWD, Kelvin Waves, NAO, North Atlantic Oscillation, Oceanography, Return Flow, Thermocline, Tropical Cyclone, W
Occluded Front - a composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front. Two types of occlusions can form depending on the relative coldness of the air behind the cold front to the air ahead of the warm or stationary front. A cold occlusion results when the coldest air is behind the cold front and a warm occlusion results when the coldest air is ahead of the warm front.
- Browse Related Terms: CFP, Cold Occlusion, FROPA, Katafront, Occluded Front, Occluded Mesocyclone, OCFNT, PSG, Stationary Front, Warm Occlusion, Warm Sector, WFP, Wrapping Gust Front, WRM, WRMFNT
Occasional
- Browse Related Terms: Hodograph, Left Mover, Max Parcel Level (MPL), OCNL, Outer Convective Band, Outflow, Right Mover, Shelf Cloud, Single Cell Thunderstorm, Supercell Thunderstorm, T, Tail-End Charlie, TSRA, TSTM
The Office of Equal Opportunity and Diversity Management. Provides a duel role. Advises and assists the Assistant Administrator in carrying out the National Weather Service's (NWS) responsibilities relative to Civil Rights laws, Executive Orders, regulatory guidelines, and other nondiscrimination laws within the Federal Government. Advises and assists the Assistant Administrator in carrying out the NWS policy of diversity management by fostering an inclusive workforce, building an environment that respects the individual and offering opportunities for all employees to develop to their full potential. Cultural Diversity is the mixture of differences and similarities each employee brings to the workplace to accomplish the goals of the NWS.
- Browse Related Terms: AFWA, Client Agency, FEMA, LCD (Local Climatological Data), National Climatic Data Center, NCAR, NCDC, NDBC, NOAA, NWS, OEODM, U.S. Geological Survey, WC/ATWC
The Office of Global Programs (OGP) sponsors focused scientific research, within approximately eleven research elements, aimed at understanding climate variability and its predictability. Through studies in these areas, researchers coordinate activities that jointly contribute to improved predictions and assessments of climate variability over a continuum of timescales from season to season, year to year, and over the course of a decade and beyond.
- Browse Related Terms: analog, Climatology, General Circulation Models, Microclimate, Office of Global Programs, WRCC, WRN
A wind that blows from the land towards a body of water. Also known as a land breeze.
- Browse Related Terms: Erosion, hydrology, Hydrometeorology, HydroÂmeteorology, Irrigation, Offshore Breeze, Onshore Breeze, Topography, Water Pollution, Watershed
Occurs when air moves from land to sea, and is usually associated with dry weather.
- Browse Related Terms: Diabatic, Dry Line Bulge, Dry Punch, Equivalent Potential Temperature, Isentropic Analysis, Offshore Flow, Potential Temperature, Relative Vorticity, Theta-e, THETAE, TROWAL, Virtual Potential Temperature
That portion of the oceans, gulfs, and seas beyond the coastal waters extending to a specified distance from the coastline, to a specified depth contour, or covering an area defined by specific latitude and longitude points.
- Browse Related Terms: Bergy Bit, Index of Wetness, map, Offshore Waters, PCPN, Point Precipitation, PRCP, Precipitable Water, pW, PWAT
(OFF) - A National Weather Service marine forecast product for that portion of the oceans, gulfs, and seas beyond the coastal waters extending to a specified distance from the coastline, to a specified depth contour, or covering an area defined by specific latitude and longitude points.
- Browse Related Terms: Air pollutant, APST, FBO, FTPMAIL, Great Lakes Faxback, Great Lakes Freeze-Up/Break-Up Outlook, NESDIS, NOAA Weather Wire, Offshore Waters Forecast, Recreation Report, Severe Weather Statement, Short Term Forecast, SRF, St Lawrence Freeze-Up Outlook, State Forecast Product, Surf Zone Forecast, Wind Radii
Offshore
- Browse Related Terms: 1-2-3 Rule, AGFS, Complex Gale/Storm, CWFA, Developing Gale/Storm, FA, FCST, FOUS, Grids, High Seas Forecast, Marine Zone, NSSFC, OFSHR, PROGGED, Radar Meteorology, RAFC, RAFS, Red Flag Warning, TAF, Valid Time, ZFP
State of Ohio National Weather Service Office of Hydrology, a branch of the NWS Headquarters
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Overhead
- Browse Related Terms: Autumn, Autumnal Equinox, Fall, Hurricane Season, Nautical Twilight, OHD, Solar Noon, Solstice, Summer, Summer Solstice, Winter, Winter Solstice
Used for the measurement of total cloud cover. One okta of cloud cover is the equivalent of 1/8 of the sky covered with cloud.
- Browse Related Terms: AURORA, Broken Level, Cloudy, Convective Overdevelopment, Fair, Jet Stream Cirrus, Mostly Clear, Mostly Cloudy, Mostly Sunny, Okta, Opaque, Partly Cloudy, Partly Sunny, RPD, Shallow Fog, Shower, Sky Condition, Sunny