Weather conditions for Tiffin, Ohio
Thu, Apr 02, 2020 - 05:29 EDT
Cold & Night Time, Dry 
37.3 °F / 2.9 °C 

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Station Data
Local Date
Apr 2, 2020
Local Time
05:29 EDT
41°07’04N, 83°09’55W
732 feet (223.1m)
NOAA Office
Cleveland (KCLE)
We are about 70.8 miles WSW of this office.

Random Fact
#49... Did you know?
The fastest winds on earth are inside a tornado funnel. Winds here have been recorded at 300 mph.

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Here is a list of special words used throughout our site. Depending how the administrator setup the system, you may either see a list of words group alphabetically or a table of letters. We have a total 217 words in our glossary.

Below is a quick navigation to the available letters & numbers on the current page.
[ D | E | F | G | H ]

217 Total (5 Pages, 50 per page)

First Previous ... 1 2 3 4 5 ... Next Last


Drizzle: Small, slowly falling water droplets, with diameters between .2 and .5 millimeters.

Drought: Abnormally dry weather in a region over an extended period sufficient to cause a serious hydrological (water cycle) imbalance in the affected area. This can cause such problems as crop damage and water-supply shortage.


EAS: Emergency Alert System.

ECC: ECC Error Correcting Memory Helps prevent hardware memory errors that can result in instability.

Evaporation: the process of a liquid changing into a vapor or gas.

Excessive heat warning: Issued within 12 hours of the onset of the following conditions: heat index of at least 105 degrees Fahrenheit for more than 3 hours per day for 2 consecutive days or heat index more than 115 degrees Fahrenheit for any period of time.

Excessive heat watch: Issued for the potential of the following conditions within 12 to 36 hours: heat index of at least 105 degrees Fahrenheit for more than 3 hours per day for 2 consecutive days or heat index more than 115 degrees Fahrenheit for any period of time.

Eye: The low pressure center of a tropical cyclone. Winds are normally calm and sometimes the sky clears.

Eye wall: The ring of thunderstorms that surrounds a storm's eye. The heaviest rain, strongest winds and worst turbulence are normally in the eye wall.


Fahrenheit: the standard scale used to measure temperature in the United States; in which the freezing point of water is thirty-two degrees and the boiling point is two hundred and twelve degrees.

Fair: describes weather in which there is less than 4/10ths of opaque cloud cover, no precipitation, and there is no extreme visibility, wind or temperature conditions.

Fall wind: a strong, cold, downslope wind.

Feeder bands: Lines or bands of low-level clouds that move (feed) into the updraft region of a thunderstorm, usually from the east through south (i.e., parallel to the inflow). This term also is used in tropical meteorology to describe spiral-shaped bands of convection surrounding, and moving toward, the center of a tropical cyclone.

Flash flood: A flood that occurs within a few hours (usually less than six) of heavy or excessive rainfall, dam or levee failure or water released from an ice jam.

Flash flood warning: Issued to inform the public, emergency management, and other cooperating agencies that flash flooding is in progress, imminent, or highly likely.

Flash flood watch: Issued to indicate current or developing hydrologic conditions that are favorable for flash flooding in and close to the watch area, but the occurrence is neither certain or imminent.

Flood: a condition that occurs when water overflows the natural or artificial confines of a stream or river; the water also may accumulate by drainage over low-lying areas.

Flood crest: The highest stage or flow occurring in a flood.

Flood stage: The stage at which water overflowing the banks of a river, stream or body of water begins to cause damage.

Flood warning: Issued when there is expected inundation of a normally dry area near a stream, other water course; or unusually severe ponding of water.

Flurries: Light snow falling for short durations. No accumulation or just a light dusting is all that is expected.

Fog: Water that has condensed close to ground level, producing a cloud of very small droplets that reduces visibility to less than one km (three thousand and three hundred feet).

Forecast: A forecast provides a description of the most significant weather conditions expected during the current and following days. The exact content depends upon the intended user, such as the Public or Marine forecast audiences.

Freeze: Occurs when the surface air temperature is expected to be 32 degrees Fahrenheit or below over a widespread area for a significant period of time.

Freeze warning: Issued during the growing season when surface temperatures are expected to drop below freezing over a large area for an extended period of time, regardless if frost develops or not.

Freezing rain: Rain that freezes on objects such as trees, cars and roads, forming a coating or glaze of ice. Temperatures at higher levels are warm enough for rain to form, but surface temperatures are below 32 degrees Fahrenheit, causing the rain to freeze on impact.

Front: The boundary or transition zone between two different air masses. The basic frontal types are cold fronts, warm fronts and occluded fronts.

Frost: The formation of thin ice crystals on the ground or other surfaces. Frost develops when the temperature of the exposed surface falls below 32 degrees Fahrenheit and water vapor is deposited as a solid.

Fujita scale: System developed by Dr. Theodore Fujita to classify tornadoes based on wind damage. Scale is from F0 for weakest to F5 for strongest tornadoes.


Gale: Sustained wind speeds from 34 to 47 knots (39 to 54 mph).

Gale warning: A marine weather warning for gale force winds from a non tropical system.

Geostationary satellite: A satellite positioned over the equator that rotates at the same rate as the earth, remaining over the same spot.

Glaciation: The transformation of cloud particles from water droplets to ice crystals. Thus, a cumulonimbus cloud is said to have a "glaciated" upper portion.

GOES: Geostationary Operational Environmental Satellite. They are owned and run by the National Oceanic and Atmospheric Administration (NOAA), while NASA designs and launches them.

Growing degree day: A form of degree day to estimate the approximate dates when a crop will be ready to harvest. one growing degree day occurs when the daily mean temperature is one degree above the minimum temperature required for the growth of that specific crop.

Growing season: The period of time between the last killing frost of spring and the first killing frost of autumn.

Gust: A brief sudden increase in wind speed. Generally the duration is less than 20 seconds and the fluctuation greater than 10 mph.

Gust front: The leading edge of the downdraft from a thunderstorm. A gust front may precede the thunderstorm by several minutes and have winds that can easily exceed 80 mph.


Hail: Precipitation in the form of balls or irregular lumps of ice produced by liquid precipitation, freezing and being coated by layers of ice as it is lifted and cooled in strong updrafts of thunderstorms..

Hard freeze: freeze where vegetation is killed and the ground surface is frozen solid.

Haze: Fine dust or salt particles in the air that reduce visibility.

Heat advisory: Issued within 12 hours of the onset of the following conditions: heat index of at least 105 degrees but less than 115 degrees for less than 3 hours per day. Nighttime lows remain above 80 degrees for 2 consecutive days.

Heat index: An index that combines air temperature and humidity to give an apparent temperature (how hot it feels). Here is a heat index formula originally from Weatherwise magazine. It gives valid results above 70 deg. F. (-42.379+2.04901523*t+10.14333127*r-.22475541*t*r-(6.83783e-3)*t^2-(5.481717e-2)*r^2+(1.22874e-3)*t^2*r+(8.5282e-4)*t*r^2-(1.99e-6)*t^2*r^2) t=temp deg f and r=%rel hum

Heat island: A dome of elevated temperatures over an urban area caused by the heat absorbed by structures and pavement.

Heat lightning: Lightning that can be seen, but is too far away for the thunder to be heard.

Heating degree day: A form of degree day used to estimate the required energy for heating. One heating degree day occurs for each degree the daily mean temperature is below 65 degrees Fahrenheit.

Heavy snow: Depending on the region of the USA, this generally means that four or more inches of snow has accumulated in 12 hours, or six or more inches of snow in 24 hours.

Heavy snow warning: Older terminology replaced by winter storm warning for heavy snow. Issued when 7 or more inches of snow or sleet is expected in the next 24 hours. A warning is used for winter weather conditions posing a threat to life and property.

Heavy surf: the result of large waves breaking on or near the shore resulting from swells or produced by a distant storm.

High: An area of high pressure, usually accompanied by anticyclonic and outward wind flow. Also known as an anticyclone.

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