frontal passage


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frontal passage

[¦frənt·əl ′pas·ij]
(aerospace engineering)
The transit of an aircraft through a frontal zone.
(meteorology)
The passage of a front over a point on the earth's surface.
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References in periodicals archive ?
* Low temperatures usually occur around sunrise, and high temperatures in the afternoon--but a strong frontal passage (particularly in winter) will affect these times.
The frontal passage was evidenced at the surface by a well-defined wind shift, from southeasterly to northwesterly, and a decrease in surface temperature.
The site in the central valley near Wahiawa was used during the cold frontal passage and on two weak trade wind days when the sea-breeze and inland convection were active.
* With a low scattered layer situation, such as is typical of Florida, visual avoidance of rain showers is practical and relatively safe (except with a frontal passage or worse, such as a tropical depression).
Baitfish will begin disappearing from the flats with each new frontal passage. Snook that were leaving the beaches and passes last month will be in a full-on feeding mode to gain weight before cold weather arrives.
Due to the frontal passage at 1300 UTC, the observed winds at 6000 feet shift around to 275 degrees at 33 knots and the temperature drops to 6 degrees C.
Most likely areas are where large flows of bay water move toward the oceanside assisted by the north winds of a frontal passage. As the winds shift back to the northeast and east and face the prevailing current, tailing conditions may show Up.
We try to pick the right days and avoid a weather frontal passage. And we don't head out there just on Saturdays.
Stay flexible, as conditions change with each frontal passage. Be prepared to deal with skinny water reds on the second and fourth weekends of the month when full and new moon extreme tides load up the bays with water then turn around and pull the plug, sucking tide levels nearly 3 feet down over the course of the falling tide that hits bottom in the mornings.
Circumstances are prime for tailing conditions to develop following a frontal passage. Here is how it happens: Strong north winds that blow post-front, assisted by an outgoing tide, push dirty water from the Gulf through bridge channels offshore past the main reefline.
When a strong chill is in the air following a frontal passage and the water temperatures are down, expect lots offish to hunker down in deeper channels.
Frontal passages in California can be very difficult to identify from METAR observations and maps, and sometimes NOAA surface maps inaccurately depict the fronts.