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RAP Mean Sea Level Pressure Map Unavailable
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About This Map

Mean sea level pressure is the atmospheric pressure adjusted for altitude at a given moment. When weather reports mention surface pressure or barometric pressure, they are usually referring to mean sea level pressure. Mean sea level pressure anomaly is the departure of the mean sea level pressure from average. On our weather maps, mean sea level pressure is given in millibars or inches of mercury.

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Map Status


Model Run Hour
GFS 00Z 177
GFS-HR 00Z 153
NAM 00Z 084
RAP 03Z 021
ECMWF 00Z 240
GEFS 00Z 078
CMC 00Z 150

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