These are real time meteograms produced by the 12km NAM Model. Here is a sample set of meteograms for Ithaca, New York (725115) for the period beginning at 12Z on the 27th (the 27/12 at the bottom left) and ending at 00Z on the 30th (the 30/00 at the bottom right).
TRACE 1: TMPF, DWPF - Temperature (red), Dew Point (green): 2-meter values in degrees F
TRACE 2: P01M, C01M - Precipitation, Convective Precip: hourly accumulations in inches and
TRACE 3: PMSL, HLCY - Sea Level Pressure in mb (orange, left axis) and Helicity (aqua, right axis): in m**2/s**2, using storm motion based upon the Bunkers Dynamic Method.
TRACE 4: VSBK, CDBP - Horizontal visibility (red, left axis): in MILES, calculated from the Stoelinga-Warner algorithm and Cloud base pressure (purple, right axis) in mb
TRACE 5: CAPE, CINS - Convective Available Potential Energy (brown) and Convective Inhibition (blue, absolute value): in J/kg, computed in GEMPAK using forecast soundings from the model
Information on obtaining and unpacking hourly model forecasts in BUFR:
These meteograms are produced from hourly forecast files that have been
converted from BUFR into GEMPAK. Information on obtaining these BUFR
files for individual stations can be found
here .
This product is experimental and is for evaluation only. The forecasts are for the nearest model grid point to the station. Send mail to geoffrey.manikin@noaa.gov with your comments.
