Weather Service Dynamics
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Radar weather reports are of special interest to pilots because they indicate
location of precipitation along with type, intensity, and cell movement of precipitation. Radar reports are excellent for identifying areas with precipitation and determining its type. They also show cell movement, which can be used to predict the future location of precipitation cells.
location of precipitation along with type, intensity, and cell movement of precipitation.
Radar reports are excellent for identifying areas with precipitation and determining its type. They also show cell movement, which can be used to predict the future location of precipitation cells.
See lessFor aviation purposes, ceiling is defined as the height above the Earth's surface of the
lowest broken or overcast layer or vertical visibility into an obscuration. Rote memory item: The ceiling is always the lowest layer of broken or overcast clouds. If reported, vertical visibility is also considered a ceiling.
lowest broken or overcast layer or vertical visibility into an obscuration.
Rote memory item: The ceiling is always the lowest layer of broken or overcast clouds. If reported, vertical visibility is also considered a ceiling.
See lessThe only cloud type forecast in TAF reports is
Cumulonimbus. Rote memory item: Cumulonimbus (CB) clouds are reported in the TAF because they are dangerous. For more information, watch the "How to Read TAFs" video.
Cumulonimbus.
Rote memory item: Cumulonimbus (CB) clouds are reported in the TAF because they are dangerous. For more information, watch the “How to Read TAFs” video.
See lessIn the TAF from KOKC, the "FM (FROM) Group" is forecast for the hours from 1600Z to 2200Z with the wind from
180° at 10 knots. As shown in the figure below, the FROM group starting at 1600Z on the 5th (FM051600) indicates wind from 180 degrees at 10 knots (18010KT). This changes to 200 degrees at 13 knots, gusting to 20 knots, after 2200Z (BECMG 0522/0524). For more information, watch the "HoRead more
180° at 10 knots.
As shown in the figure below, the FROM group starting at 1600Z on the 5th (FM051600) indicates wind from 180 degrees at 10 knots (18010KT). This changes to 200 degrees at 13 knots, gusting to 20 knots, after 2200Z (BECMG 0522/0524). For more information, watch the “How to Read TAFs” video.
See lessBetween 1000Z and 1200Z the visibility at KMEM is forecast to be?
3 statute miles. As shown in the figure below, the visibility is indicated as 3 SM (3 statute miles) from 1000Z to 1200Z. For more information, watch the "How to Read TAFs" video.
3 statute miles.
As shown in the figure below, the visibility is indicated as 3 SM (3 statute miles) from 1000Z to 1200Z. For more information, watch the “How to Read TAFs” video.
See lessWhat is the valid period for the TAF for KMEM?
1800Z to 2400Z. As shown in the figure below, the valid period is from the 12th at 1800Z (1218) to the 13th at 2400Z (1324). For more information, watch the "How to Read TAFs" video.
1800Z to 2400Z.
As shown in the figure below, the valid period is from the 12th at 1800Z (1218) to the 13th at 2400Z (1324). For more information, watch the “How to Read TAFs” video.
See lessIn the TAF from KOKC, the clear sky becomes
overcast at 2,000 feet during the forecast period between 2200Z and 2400Z. As shown in the figure below, the sky is expected to change from clear (SKC) to overcast at 2000, as indicated by OVC020. For more information, watch the "How to Read TAFs" video.
overcast at 2,000 feet during the forecast period between 2200Z and 2400Z.
As shown in the figure below, the sky is expected to change from clear (SKC) to overcast at 2000, as indicated by OVC020. For more information, watch the “How to Read TAFs” video.
See lessDuring the time period from 0600Z to 0800Z, what visibility is forecast for KOKC?
Greater than 6 statute miles. As shown in the figure below, the visibility is greater than 6 SM (depicted as P6SM) between 0600Z on the 6th (depicted as 0606) and 0800Z on the 6th (depicted as 0608). For more information, watch the "How to Read TAFs" video.
Greater than 6 statute miles.
As shown in the figure below, the visibility is greater than 6 SM (depicted as P6SM) between 0600Z on the 6th (depicted as 0606) and 0800Z on the 6th (depicted as 0608). For more information, watch the “How to Read TAFs” video.
See lessWhat are the current conditions for Chicago Midway Airport (KMDW)?
Sky 700 feet overcast, visibility 1-1/2SM, rain. As highlighted in the figure below, the current conditions are 1 1/2 SM visibility, rain (RA), and overcast skies at 700 feet (OVC007). For more information, watch the "How to Read METARs" videos.
Sky 700 feet overcast, visibility 1-1/2SM, rain.
As highlighted in the figure below, the current conditions are 1 1/2 SM visibility, rain (RA), and overcast skies at 700 feet (OVC007). For more information, watch the “How to Read METARs” videos.
See lessThe remarks section for KMDW has RAB35 listed. This entry means
rain began at 1835Z. RAB stands for "Rain Began," and 35 indicates 35 minutes past the hour it was recorded. In this case, the report was recorded at 1856Z, so the rain began at 1835Z. For more information, watch the "How to Read METARs" videos.
rain began at 1835Z.
RAB stands for “Rain Began,” and 35 indicates 35 minutes past the hour it was recorded. In this case, the report was recorded at 1856Z, so the rain began at 1835Z. For more information, watch the “How to Read METARs” videos.
See less