Weather Abbreviations

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Weather Abbreviations

Post by KTtom » Mon Nov 19, 2012 6:07 pm

WZ- Wetterzentrale ( German website for viewing charts)

NAO- North Atlantic oscillation

AO - Arctic oscillation

PV - Polar Vortex

PNA- Pacific North American

SOI./ENSO- El-Nino Southern oscillation

WAA- Warm air advection

CAA- Cold air advection

528 DAM- is the line drawn on the maps that equated to the temperature ( MAX) that snow can be often observed at

-5 850hpa - Maximum 850hpa (approx 1.5 km temps) at which we can usually expect snow.

GFS- Global forecasting system

CET - Central England Temperature

METO- Met office model

UKMO- United kingdom Met office

ECM( Or ECMWF) European centre of medium range weather forecasts..

ASL- Above sea level-

PPN- Precipitation

Ensembles- 10 GFS model runs- Operational run is the one seen on the models

SST'S sea surface temperatures

PM- Polar maritime air

MT- Maritime Tropical air

PC- Polar Continental air

LRF's - Long range forecasts

MRF's- meduim range forecasts

Trough- Upper level equivalent to a surface Low pressure

Ridge- Upper level equivalent to a surface High pressure

Blocking- The jet stream being moved AROUND CLOCKWISE a large area of high pressure.

FI - Fantasy Island (lower resolution part of GFS run +192 hrs)

SW - Snow-Watch :)

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