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Additional updates as they happen at...
http://www.twitter.com/senorpepr
http://www.twitter.com/storm2k_org
Surface Pressure and Plots

Displayed are isobars (lines of equal pressure, every 2 hPa) and surface plots.
Surface Streamlines and Plots

Displayed are isogon/streamlines (lines of equal wind direction) and surface plots.
Sea Surface Temperature Plots

Displayed are sea surface temperatures in tenths of a degree fahrenheit (°F).
Storm-specific Zoomed Surface Plots

Displayed are surface plots.
Storm-specific Zoomed Surface Plots, Streamlines, Surface Pressure, and 0.5° Base Reflectivity

Displayed are isobars, isogons, surface plots, and radar reflectivity in decibels.
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Upper air charts produced bidaily at 0300Z and 1500Z
Ensure you refresh for the latest imagery
200 hPa Analysis

Displayed are isotachs (every 10 kt above 50 kt, in purple with shading), isotherms (every 5 °C, in red), isohypse (every 12 dam, in black), and radiosonde plots.
300 hPa Analysis

Displayed are isotachs (every 10 kt above 50 kt, in purple with shading), isotherms (every 5 °C, in red), isohypse (every 12 dam, in black), and radiosonde plots.
500 hPa Analysis

Displayed are isotachs (every 10 kt above 50 kt, in purple), isotherms (every 2 °C, in red), isohypse (every 6 dam, in black), and radiosonde plots.
500 hPa Vorticity Analysis

Displayed are isovorts (every 20^-5/s, in red), isohypse (every 6 dam, in black), and wind barb plots.
700 hPa Analysis

Displayed are isotachs (every 10 kt, in purple), isotherms (every 2 °C, in red), isodrosotherms (every 5 °C, in green with shading where dewpoint depression is less than 5 °C), isohypse (every 3 dam, in black), and radiosonde plots.
850 hPa Analysis

Displayed are isotachs (every 10 kt, in purple), isotherms (every 2 °C, in red), isodrosotherms (every 5 °C, in green with shading where dewpoint depression is less than 5 °C), isohypse (every 3 dam, in black), and radiosonde plots.
850hPa Theta-e Analysis

Displayed are pseudoadiabats (every 2 K, in purple), isohumes (every 1 g/kg in green), and radiosonde plots.
925 hPa Analysis

Displayed are isotach (every 10 kt, in purple), isotherms (every 2 °C, in red), isodrosotherms (every 5 °C, in green with shading where dewpoint depression is less than 5 °C), isohypse (every 3 dam, in black), and radiosonde plots.
1000-500 hPa Thickness Analysis

Displayed are isopachs (every 6 dam, in red) and isobars (every 4 hPa, in black).
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Key:
isobar - line of equal pressure
isotherm - line of equal temperature
isodrosotherm - line of equal dewpoint temperature
isallobar - line of equal pressure change
isotach - line of equal wind speed
isohypse - line of equal height
isovort - line of equal absolute vorticity
psuedoadiabat - line of equal equivalent potential temperature
isohume - line of equal mixing ratio
isopach - line of equal thickness