Subj : Weather Glossary (Q)
To   : All
From : Daryl Stout
Date : Mon Feb 18 2019 12:10 am

  This weather glossary contains information on more than 2000 terms,
phrases and abbreviations used by the National Weather Service (NWS)...
the government agency who makes weather forecasts, and issues weather
advisories, watches, and warnings, for the United States, and its
territories.

  Many of these terms and abbreviations are used by NWS forecasters to
communicate between each other and have been in use for many years and
before many NWS products were directly available to the public. It is the
purpose of this glossary to aid you in better understanding NWS products.

***

QG
Quasigeostrophic

QN
Question

QPF
Quantitative Precipitation Forecast. A spatial and temporal precipitation
forecast that will predict the potential amount of future precipitation
for a specified region, or area.

QPF Discussion
This HPC forecast discussion is directed completely to explaining manual
forecasts of areas in the contiguous 48 states expected to receive 1/4
inch or more precipitation during a 24-hour period. The manual forecasts
are explained in terms of initial conditions and differences and/or
similarities in the numerical model forecasts. General confidence in the
manual forecast is expressed where it is appropriate and possible
alternatives may be offered. This product is issued 3 times a day.

QPFERD
NCEP Excessive Rainfall Discussion

QPFHSD
NCEP Heavy Snow Discussion

QPFPFD
NCEP Precipitation Forecast Discussion

QSTNRY
Quasi-stationary - describes a low or high pressure area or a front that
is nearly stationary.

QTR
Quarter

QUAD
Quadrant

Quadrature
The component of the complex signal that is 90 degrees out of phase with
the inphase component. This component lies along the imaginary axis the
complex plane.

Quality of Snow
The amount of ice in a snow sample expressed as a percent of the weight
of the sample.

Quantitative Precipitation Forecast
A spatial and temporal precipitation forecast that will predict the
potential amount of future precipitation for a specified region, or area.

Quasi-stationary
(abbrev. QSTNRY)- Describes a low or high pressure area or a front that is
nearly stationary.

Quasi-stationary Front
A front which is nearly stationary or moves very little since the last
synoptic position. Also known as a stationary front.

Quiescent Prominence (Filament)
Long, sheet-like prominences nearly vertical to the solar surface.

Quiet
Solar activity levels with less than one chromospheric event per day.
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