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Digital Forecasts
These text readable digital forecasts
were formatted by a computer. They are a digital representation of the official
worded zone and cities forecasts prepared by a meteorologist using computer tools.
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Description of The Digital Forecast
Hours are in local time using a 24 hour clock.
POP 12 is the 12 hour probability of precipitation for the day or night at which it is
indicated
QPF 12 is the total amount of precipitation forecast to fall in inches during the 12 hour
period averaged over an entire zone or zones.
MAX QPF is the highest amount of precipitation expected at any point in the area forecast.
SNOW is the total snow fall expected in the 12 hour period.
TEMP is the temperature forecast at the hour listed above.
DEWPT is the dew point forecast at the hour listed above.
WIND DIR is the wind direction that the wind will blow from for the hour listed above
WIND SPD is the wind speed for the hour listed above
CLOUDS show the sky cover for the hour listed above. CL = clear, SC = scattered, BK=
broken, OV=overcast
Precipitation type is indicated below clouds. The letter that is shown below an hour
indicates the frequency or probability. S=slight chance, C=chance, L=likely,
O=occasional, D=definite.
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Coded Cities Forecasts
These digital text products show the weather, maximum and minimum
temperature, and probability of precipitation forecasts for specific towns.
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Description of The Coded Cities Forecast
Three letters at the left are standard location identifiers that represent the
name of the location.
Other letters indicate weather. One letter is assigned to each day for days 1 through 7.
Abbreviations are as follows: A=Fair, U=Sunny, C=Cloudy, B=Partly Cloudy, V=Clear,
R=Rain, S=Snow, T=Thunderstorm, W=Showers, N=Windy, F=Foggy
Maximum and minimum temperature forecasts are in three digit groups separated by
a / or a space. Each is for a 12 hour period. There are 7 pairs of numbers for
the 7 days forecast. The first number represents either a maximum or a minimum
temperature depending on the time of day the forecast was made
The number groups at the far right of each line indicate precipitation probabilities.
A 1 stands for 10 percent chance, 2 for 20 percent chance, etc. A + indicates 100
percent chance. A - (normally not used) indicates 5 percent chance.
The right side number group on the same line as the location identifier shows the forecaster
id number (2 digits) and probabilities for the first 3 twelve hour periods of the forecast
(1 digit each). The forecast for the 4th through the 14th 12 hour period are shown on
at the far right side of the line below that which contains the station identifier. Since
these are coded for computer use, it is necessary to count days or 12 hour periods to see what
is forecast.
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