Listed below are some weather and climate sites that I have found especially useful while observing territorial behavior, population dynamics, or migration of Red Admirals and Painted Ladies. Some of these sites maintain only current data, but you can save images or tables from these for your own use.
Internet
Weather Source: U.S. National Weather
Service
Hourly weather conditions for the past 24 hours, forecasts, watches,
and warnings from your local National Weather Service office,
anywhere in the United States. Also gives hourly weather conditions
for the past 24 hours for selected locations world-wide.
Real-Time
Weather Data
Real-Time
Weather Data--Surface
Hourly weather data and hourly colored contour maps of temperature,
dewpoint, winds, and sea-level pressure are among the wide variety of
information on this site. Region covered includes the U.S., southern
Canada, and northern Mexico. National Center for Atmospheric Research
(NCAR).
Unisys
Weather
Hourly weather maps for the U.S., southern Canada, and northern
Mexico. Also includes U.S. local forecasts and current
conditions.
Real-Time Weather Data/Unisys Weather:
Selected
Map Archive
A set of selected North American maps of surface and 850 mb height
conditions for the previous 14 days. Maps are for 21 hours Greenwich
Mean Time (3 p.m. Central Standard Time) each day. We maintain this
archive in cooperation with the Iowa Environmental
Mesonet.
International
Weather: Regional Climate Maps
Formerly Joint Agricultural Weather Facility. Includes daily, weekly,
monthly, and percent normal monthly precipitation, as well as other
weather data, for various regions of the world.
Iowa
Ag Climate Network: Iowa State
University
Hourly and daily weather data archives from Iowa automated weather
stations.
Iowa
Environmental Mesonet
This site provides a variety of Iowa and U.S. weather
information.
RI (Rieman Index) Page: The Rieman Index measures the tendency for warm, moist air from the Gulf of Mexico to move northward into the eastern and midwestern U.S. Migrating butterflies and other insects often ride these moist winds northward in the spring.
S.
Elwynn Taylor
Iowa State University Extension Climatologist Elwynn Taylor's home
page.
El
Niño Theme Page
Basic information on El Niño and La Niña from the U.S.
National Oceanic and Atmospheric Administration (NOAA).
NOAA El
Niño Page
NOAA
La Niña Page
More information on El Niño and La Niña from
NOAA.
Southern
Oscillation Index Archives
Monthly mean SOI values from January 1876 to the present day. Bureau
of Meteorology, Australia.
Southern
Oscillation Index and 'SOI Phase'
Graph of recent values of the Southern Oscillation Index. Department
of Natural Resources and Mines, Queensland, Australia.
This page was revised on March 20, 2005.