If you've ever wanted to look at historical events, you've probably had some difficulty pulling together all the data you wanted. Here's a list of useful sites I've found - please post if you have any further suggestions!
NCDC Resources:
http://www.ncdc.noaa.gov/oa/climate/climatedata.html - This page has links to the resources below, along with many others
http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?WWNEXRAD~Images2
Data: NEXRAD mosaic reflectivity
Data Format: Images
Range: 4/1/1995 - 2 days before present
http://www.ncdc.noaa.gov/nexradinv/
Data: NEXRAD individual products for Level 2 and Level 3
Data Format: Multiple
Range: 1995 - present
http://has.ncdc.noaa.gov/pls/plhas/HAS.FileAppSelect?datasetname=7000
Data: NEXRAD Level 3 full radar volumes
Data Format: Tarred and Gzipped by station and date/time
Times: Variable
Range: Variable, but typically mid-90s to 1 day behind the present
Note: This is the site you want to use for viewing archived data in GrLevel3, details can be found at http://grlevelx.com/owners/viewtopic.php?f=2&t=4554
http://has.ncdc.noaa.gov/pls/plhas/HAS.FileAppSelect?datasetname=6500
Data: NEXRAD Level 2 full radar volumes
Range: 1995 - present
http://nomads.ncdc.noaa.gov/data.php?name=access#hires_weather_datasets
Data: RUC, NAM, and GFS model runs
Data Format: .inv and .grb files
http://www.class.ncdc.noaa.gov/saa/products/search?datatype_family=GVAR_IMG
Data: Archived satellite images
HPC Resources:
http://www.hpc.ncep.noaa.gov/html/sfc_archive.shtml
Data: Surface analysis
Data Format: Images
Range: 4/2006 - present
ftp://ftp.hpc.ncep.noaa.gov/coded_sfc/
Data: Surface analysis
Data Format: Text bulletins
Range: Last 2 weeks
SPC Resources:
http://www.spc.noaa.gov/climo/reports/
Data: Tornado, hail, and wind events
Data Format: Images and CSV
Note: To go directly to a date, use http://www.spc.noaa.gov/climo/reports/YYMMDD_rpts.html and replace 'YYMMDD' with desired values
http://www.spc.noaa.gov/wcm/
Data: Tornado, hail, and wind events
Data Format: CSV
Range: 1950-2009
http://www.spc.noaa.gov/obswx/maps/
Data: Sfc/925/850/700/500/300, wind speed/wind direction/temps/dew points
Data Format: Images
Times: 00z and 12z
Range: 11/30/98 - present
http://www.spc.noaa.gov/exper/soundings/
Data: Observed soundings
Data Format: Images
Times: Typically 00z and 12z, although special soundings will appear
Range: Last 7 days
http://www.spc.noaa.gov/exper/archive/events/
Data: Multiple (radar mosaic, satellite, HPC surface analysis)
Data Format: Images
Range: 1/2000 - present
Note: To go directly to a date, use http://www.spc.noaa.gov/exper/archive/event.php?date=YYYYMMDD and replace 'YYMMDD' with desired values
Misc resources:
http://www.mmm.ucar.edu/imagearchive/
Data: Multiple types, but most importantly 1km satellite
Range: 1996 - present
NCDC Resources:
http://www.ncdc.noaa.gov/oa/climate/climatedata.html - This page has links to the resources below, along with many others
http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?WWNEXRAD~Images2
Data: NEXRAD mosaic reflectivity
Data Format: Images
Range: 4/1/1995 - 2 days before present
http://www.ncdc.noaa.gov/nexradinv/
Data: NEXRAD individual products for Level 2 and Level 3
Data Format: Multiple
Range: 1995 - present
http://has.ncdc.noaa.gov/pls/plhas/HAS.FileAppSelect?datasetname=7000
Data: NEXRAD Level 3 full radar volumes
Data Format: Tarred and Gzipped by station and date/time
Times: Variable
Range: Variable, but typically mid-90s to 1 day behind the present
Note: This is the site you want to use for viewing archived data in GrLevel3, details can be found at http://grlevelx.com/owners/viewtopic.php?f=2&t=4554
http://has.ncdc.noaa.gov/pls/plhas/HAS.FileAppSelect?datasetname=6500
Data: NEXRAD Level 2 full radar volumes
Range: 1995 - present
http://nomads.ncdc.noaa.gov/data.php?name=access#hires_weather_datasets
Data: RUC, NAM, and GFS model runs
Data Format: .inv and .grb files
http://www.class.ncdc.noaa.gov/saa/products/search?datatype_family=GVAR_IMG
Data: Archived satellite images
HPC Resources:
http://www.hpc.ncep.noaa.gov/html/sfc_archive.shtml
Data: Surface analysis
Data Format: Images
Range: 4/2006 - present
ftp://ftp.hpc.ncep.noaa.gov/coded_sfc/
Data: Surface analysis
Data Format: Text bulletins
Range: Last 2 weeks
SPC Resources:
http://www.spc.noaa.gov/climo/reports/
Data: Tornado, hail, and wind events
Data Format: Images and CSV
Note: To go directly to a date, use http://www.spc.noaa.gov/climo/reports/YYMMDD_rpts.html and replace 'YYMMDD' with desired values
http://www.spc.noaa.gov/wcm/
Data: Tornado, hail, and wind events
Data Format: CSV
Range: 1950-2009
http://www.spc.noaa.gov/obswx/maps/
Data: Sfc/925/850/700/500/300, wind speed/wind direction/temps/dew points
Data Format: Images
Times: 00z and 12z
Range: 11/30/98 - present
http://www.spc.noaa.gov/exper/soundings/
Data: Observed soundings
Data Format: Images
Times: Typically 00z and 12z, although special soundings will appear
Range: Last 7 days
http://www.spc.noaa.gov/exper/archive/events/
Data: Multiple (radar mosaic, satellite, HPC surface analysis)
Data Format: Images
Range: 1/2000 - present
Note: To go directly to a date, use http://www.spc.noaa.gov/exper/archive/event.php?date=YYYYMMDD and replace 'YYMMDD' with desired values
Misc resources:
http://www.mmm.ucar.edu/imagearchive/
Data: Multiple types, but most importantly 1km satellite
Range: 1996 - present
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