Appendix B — Complete URL Directory

All URLs verified March 2026. The IEM base URL is https://mesonet.agron.iastate.edu. Paths below are relative to that base unless noted otherwise. In the HTML and EPUB versions, every entry is a live hyperlink.

URLs are organized by function, not by menu location. Where a tool appears in multiple contexts throughout the guide, it is listed under its primary use category.

---

1. Current Conditions

Description	URL
Current Mainpage	mesonet.agron.iastate.edu/current/
Current Temperature Map	mesonet.agron.iastate.edu/current/index.phtml/air_temperature
Current Precipitation Map	mesonet.agron.iastate.edu/current/index.phtml/precipitation
Current Station Plot Map	mesonet.agron.iastate.edu/current/index.phtml/station_plot
Sortable Currents / My Favorites	mesonet.agron.iastate.edu/my/current.phtml
Sortable Currents by NWS WFO	mesonet.agron.iastate.edu/nws/obs.php
Sortable Currents by State	mesonet.agron.iastate.edu/current/all.phtml
ASOS Current Conditions	mesonet.agron.iastate.edu/ASOS/current.phtml
RWIS Current Surface Conditions	mesonet.agron.iastate.edu/RWIS/currentSF.phtml
RWIS Current Traffic	mesonet.agron.iastate.edu/RWIS/traffic.phtml
IEM One (Radar + Warnings)	mesonet.agron.iastate.edu/one/
Severe Weather Mainpage	mesonet.agron.iastate.edu/current/severe.phtml
Convective Watches Overview	mesonet.agron.iastate.edu/current/sel.phtml
Hourly Precip (current)	mesonet.agron.iastate.edu/rainfall/obhour.phtml
DCP Current Map (by SHEF code)	mesonet.agron.iastate.edu/DCP/map.php
River Forecast Monitor	mesonet.agron.iastate.edu/river/
Current Warning Shapefile (live)	mesonet.agron.iastate.edu/data/gis/shape/4326/us/current_ww.zip
Current NEXRAD Storm Attributes (live)	mesonet.agron.iastate.edu/data/gis/shape/4326/us/current_nexattr.zip
Current 24-hr LSR Shapefile (live)	mesonet.agron.iastate.edu/data/gis/shape/4326/us/lsr_24hour.zip

---

2. Station Networks

Description	URL
Station Locator	mesonet.agron.iastate.edu/sites/locate.php
Network Tables	mesonet.agron.iastate.edu/sites/networks.php
ASOS/AWOS Mainpage	mesonet.agron.iastate.edu/ASOS/
ASOS Monthly Precip Tables	mesonet.agron.iastate.edu/ASOS/reports/mon_prec.php
ASOS Recent Observations	mesonet.agron.iastate.edu/ASOS/recent.phtml
AWOS Mainpage	mesonet.agron.iastate.edu/AWOS/
COOP Mainpage	mesonet.agron.iastate.edu/COOP/
COOP Current Observations	mesonet.agron.iastate.edu/COOP/current.phtml
COOP 12Z Daily Reports	mesonet.agron.iastate.edu/COOP/12z.php
COOP Station Map	mesonet.agron.iastate.edu/COOP/map/
COOP Daily Records / Extremes	mesonet.agron.iastate.edu/COOP/extremes.php
COOP Freeze Date Statistics	mesonet.agron.iastate.edu/COOP/freezing.php
COOP Snow Depth Duration	mesonet.agron.iastate.edu/COOP/snowd_duration.phtml
COOP Hourly Precip (HPD)	mesonet.agron.iastate.edu/COOP/hpd.php
COOP Period Analysis	mesonet.agron.iastate.edu/COOP/periods.phtml
COOP Station Catalog	mesonet.agron.iastate.edu/COOP/cat.phtml
CoCoRaHS Mainpage	mesonet.agron.iastate.edu/cocorahs/
CoCoRaHS Current Observations	mesonet.agron.iastate.edu/cocorahs/current.phtml
CoCoRaHS Observation Listing	mesonet.agron.iastate.edu/cocorahs/obs.phtml
DCP/HADS Mainpage	mesonet.agron.iastate.edu/DCP/
DCP Current Observations	mesonet.agron.iastate.edu/DCP/current.phtml
DCP Station Site Page	mesonet.agron.iastate.edu/DCP/site.phtml
DCP Tomb (unidentified stations)	mesonet.agron.iastate.edu/DCP/tomb.phtml
RWIS Mainpage	mesonet.agron.iastate.edu/RWIS/
RWIS Current Conditions	mesonet.agron.iastate.edu/RWIS/current.phtml
RWIS Road Cameras	mesonet.agron.iastate.edu/RWIS/camera.phtml
ISU Soil Moisture Network	mesonet.agron.iastate.edu/agclimate/
SCAN Network	mesonet.agron.iastate.edu/scan/
USCRN Network	mesonet.agron.iastate.edu/uscrn/
NLAE Flux Tower Network	mesonet.agron.iastate.edu/nstl_flux/
Other Networks	mesonet.agron.iastate.edu/other/
Wind Rose by Station	mesonet.agron.iastate.edu/sites/windrose.phtml

---

3. Historical and Climate Data

Description	URL
Climate Mainpage	mesonet.agron.iastate.edu/climate/
COOP Normals Download	mesonet.agron.iastate.edu/COOP/dl/normals.phtml
Climodat Application	mesonet.agron.iastate.edu/climodat/
Climodat Monitor (departures)	mesonet.agron.iastate.edu/climodat/monitor.php
IEM Explorer (interactive station browser)	mesonet.agron.iastate.edu/explorer/
Autoplot (all charts)	mesonet.agron.iastate.edu/plotting/auto/
IEM Reanalysis (IEMRE)	mesonet.agron.iastate.edu/iemre/
IEMRE CONUS NetCDF Files	mesonet.agron.iastate.edu/onsite/iemre/
IEMRE Daily API	mesonet.agron.iastate.edu/iemre/daily/{date}/{lat}/{lon}/json
IEMRE Multiday API	mesonet.agron.iastate.edu/iemre/multiday/{date1}/{date2}/{lat}/{lon}/json
Model Output Statistics (MOS)	mesonet.agron.iastate.edu/mos/
MOS Interactive Table	mesonet.agron.iastate.edu/mos/table.phtml
MOS API (JSON/CSV)	mesonet.agron.iastate.edu/api/1/docs#/default/service_mos__fmt__get
Sounding Archive (RAOB)	mesonet.agron.iastate.edu/archive/raob/
RAOB Listing	mesonet.agron.iastate.edu/archive/raob/list.phtml
RAOB JSON API	mesonet.agron.iastate.edu/json/raob.py?help=
Archive Mainpage	mesonet.agron.iastate.edu/archive/
Raw File Archive (date tree)	mesonet.agron.iastate.edu/archive/data/
Archive Directory Schema	mesonet.agron.iastate.edu/archive/schema.php
Raw SAO/METAR Text Archive	mesonet.agron.iastate.edu/archive/raw/sao/
NEXRAD Mosaic Documentation	mesonet.agron.iastate.edu/docs/nexrad_mosaic/
MRMS NetCDF Archive	mesonet.agron.iastate.edu/onsite/mrms/
Stage IV Archive	mesonet.agron.iastate.edu/onsite/stage4/
Rainfall / Stage IV Portal	mesonet.agron.iastate.edu/rainfall/
Soil Moisture Satellite (SMOS)	mesonet.agron.iastate.edu/smos/
MTarchive (BUFKIT / model data)	mtarchive.geol.iastate.edu
Dataset Documentation	mesonet.agron.iastate.edu/info/datasets/
Variables Reference	mesonet.agron.iastate.edu/info/variables.phtml
Daily Feature Archive	mesonet.agron.iastate.edu/onsite/features/past.php
Daily Feature Tags Index	mesonet.agron.iastate.edu/onsite/features/tags/
Time Machine (replay any IEM product)	mesonet.agron.iastate.edu/timemachine/
Drought Monitor	mesonet.agron.iastate.edu/dm/
Ag Weather Portal	mesonet.agron.iastate.edu/agweather/
AgClimate Network	mesonet.agron.iastate.edu/agclimate/
Soil Temperature Map	mesonet.agron.iastate.edu/agclimate/soilt.php
Soil Temp Probabilities	mesonet.agron.iastate.edu/agclimate/soilt-prob.php
Soil Moisture Time Series	mesonet.agron.iastate.edu/agclimate/smts.php
AgClimate Daily Download	mesonet.agron.iastate.edu/agclimate/hist/dailyRequest.php
AgClimate Hourly Download	mesonet.agron.iastate.edu/agclimate/hist/hourlyRequest.php
Freeze Map	mesonet.agron.iastate.edu/GIS/apps/iem/freeze.phtml
Plant Hardiness Zones	mesonet.agron.iastate.edu/topics/hardiness/
Pest Maps / GDD Forecasting	mesonet.agron.iastate.edu/topics/pests/
COOP GIS Duration Apps	mesonet.agron.iastate.edu/GIS/apps/coop/
NEXRAD by Year	mesonet.agron.iastate.edu/GIS/rad-by-year-fe.phtml
IEM Data in Published Research	mesonet.agron.iastate.edu/info/refs.php

---

4. NWS / Warnings / VTEC

Description	URL
NWS Mainpage	mesonet.agron.iastate.edu/nws/
VTEC Browser (event view)	mesonet.agron.iastate.edu/vtec/
Warning Search by Point / County	mesonet.agron.iastate.edu/vtec/search.php
IEM Cow (SBW Verification)	mesonet.agron.iastate.edu/cow/
IEM Raccoon (SBW PowerPoints)	mesonet.agron.iastate.edu/raccoon/
Local Storm Report App	mesonet.agron.iastate.edu/lsr/
Text Archives Mainpage	mesonet.agron.iastate.edu/nws/text.php
AFOS Product Finder	mesonet.agron.iastate.edu/wx/afos/
Products by WFO by Date	mesonet.agron.iastate.edu/wx/afos/list.phtml
AFOS Bulk Retrieve API	mesonet.agron.iastate.edu/cgi-bin/afos/retrieve.py?help
CLI Interactive Map	mesonet.agron.iastate.edu/nws/climap.php
CF6 Monthly Climate Table	mesonet.agron.iastate.edu/nws/cf6table.php
SPC Outlook Search by Point	mesonet.agron.iastate.edu/nws/spc_outlook_search/
SPC Watches by Year	mesonet.agron.iastate.edu/nws/watches.php
SPC PDS Watch Listing	mesonet.agron.iastate.edu/nws/pds_watches.php
WPC Outlook Search by Point	mesonet.agron.iastate.edu/nws/wpc_outlook_search/
SPS Search by Point	mesonet.agron.iastate.edu/nws/sps_search/
SVR/TOR Warning Tags by WFO	mesonet.agron.iastate.edu/nws/list_tags.php
Max ETN by WFO by Year	mesonet.agron.iastate.edu/vtec/maxetn.php
VTEC Events by Year Table	mesonet.agron.iastate.edu/vtec/yearly_counts.php
Tornado / Flash Flood Emergencies	mesonet.agron.iastate.edu/vtec/emergencies.php
PDS Warning Listing	mesonet.agron.iastate.edu/vtec/pds.php
HML River Data Download	mesonet.agron.iastate.edu/request/hml.php
HML Forecast vs. Obs Plot (q=160)	mesonet.agron.iastate.edu/plotting/auto/?q=160
Autoplot — Warning Gantt (q=52)	mesonet.agron.iastate.edu/plotting/auto/?q=52
Autoplot — VTEC Counts Map (q=109)	mesonet.agron.iastate.edu/plotting/auto/?q=109
Autoplot — Days Since WWA (q=92)	mesonet.agron.iastate.edu/plotting/auto/?q=92
Autoplot — Accumulated WWA (q=44)	mesonet.agron.iastate.edu/plotting/auto/?q=44
Autoplot — Lead Time Dist. (q=211)	mesonet.agron.iastate.edu/plotting/auto/?q=211

---

5. Downloads

Description	URL
ASOS/AWOS/METAR Download (UI)	mesonet.agron.iastate.edu/request/download.phtml
ASOS CGI Backend (scriptable)	mesonet.agron.iastate.edu/cgi-bin/request/asos.py?help
ASOS 1-Minute Download	mesonet.agron.iastate.edu/request/asos/1min.phtml
Iowa AWOS 1-Minute Download	mesonet.agron.iastate.edu/request/awos/1min.php
Climodat / COOP Download (processed)	mesonet.agron.iastate.edu/request/coop/fe.phtml
COOP Raw Observations Download	mesonet.agron.iastate.edu/request/coop/obs-fe.phtml
Daily Summaries Download	mesonet.agron.iastate.edu/request/daily.phtml
Hourly Precip Download	mesonet.agron.iastate.edu/request/asos/hourlyprecip.phtml
RWIS Download	mesonet.agron.iastate.edu/request/rwis/fe.phtml
RWIS Soil Download	mesonet.agron.iastate.edu/request/rwis/soil.phtml
RWIS Traffic Download	mesonet.agron.iastate.edu/request/rwis/traffic.phtml
DCP/HADS Download	mesonet.agron.iastate.edu/request/dcp/fe.phtml
USCRN Download	mesonet.agron.iastate.edu/request/uscrn.php
TAF Forecast Download	mesonet.agron.iastate.edu/request/taf.php
Temperature / Winds Aloft Download	mesonet.agron.iastate.edu/request/tempwind_aloft.php
WMO BUFR Surface Download	mesonet.agron.iastate.edu/request/wmo_bufr_srf.php
Warning Polygons Shapefile	mesonet.agron.iastate.edu/request/gis/watchwarn.phtml
LSR Archive Shapefile	mesonet.agron.iastate.edu/request/gis/lsrs.phtml
NEXRAD Storm Attributes Download	mesonet.agron.iastate.edu/request/gis/nexrad_storm_attrs.php
SPC Outlook Shapefile	mesonet.agron.iastate.edu/request/gis/spc_outlooks.phtml
SPC Watch Shapefile	mesonet.agron.iastate.edu/request/gis/spc_watch.phtml
SPC MCD Shapefile	mesonet.agron.iastate.edu/request/gis/spc_mcd.phtml
WPC MPD Shapefile	mesonet.agron.iastate.edu/request/gis/wpc_mpd.phtml
Special Weather Statement Shapefile	mesonet.agron.iastate.edu/request/gis/sps.phtml
CWA Shapefile	mesonet.agron.iastate.edu/request/gis/cwas.phtml
SIGMET Shapefile	mesonet.agron.iastate.edu/request/gis/awc_sigmets.phtml
G-AIRMET Shapefile	mesonet.agron.iastate.edu/request/gis/awc_gairmets.phtml
PIREP Shapefile	mesonet.agron.iastate.edu/request/gis/pireps.php
Miscellaneous GIS Downloads	mesonet.agron.iastate.edu/request/gis/misc.phtml
GeoTIFF Rasters	mesonet.agron.iastate.edu/GIS/rasters.php
MaxCSV (quick network snapshot)	mesonet.agron.iastate.edu/request/maxcsv.py?help
Gibson Ridge Placefiles	mesonet.agron.iastate.edu/request/grx/

---

6. Services and APIs

Description	URL
API Mainpage	mesonet.agron.iastate.edu/api/
API v1 Swagger Docs	mesonet.agron.iastate.edu/api/1/docs
OGC Web Services	mesonet.agron.iastate.edu/ogc/
GIS Mainpage	mesonet.agron.iastate.edu/GIS/
GOES GIS Products	mesonet.agron.iastate.edu/GIS/goes.phtml
NEXRAD RadView	mesonet.agron.iastate.edu/GIS/radview.phtml
RadMap API	mesonet.agron.iastate.edu/GIS/radmap_api.phtml
Radar + Warnings GIS Viewer	mesonet.agron.iastate.edu/GIS/apps/rview/warnings.phtml
Watches GIS Viewer	mesonet.agron.iastate.edu/GIS/apps/rview/watch.phtml
Station Comparison GIS	mesonet.agron.iastate.edu/GIS/apps/rview/compare.phtml
RAOB JSON API	mesonet.agron.iastate.edu/json/raob.py?help=
MOS API	mesonet.agron.iastate.edu/api/1/docs#/default/service_mos__fmt__get
MOS Raw Download	mesonet.agron.iastate.edu/fe.phtml
iembot (real-time data feed)	mesonet.agron.iastate.edu/projects/iembot/
LDM Data Request	mesonet.agron.iastate.edu/request/ldm.php

---

7. Webcams

Description	URL
Webcam Viewer (realtime + archive)	mesonet.agron.iastate.edu/current/viewer.phtml
Webcam Project Overview	mesonet.agron.iastate.edu/projects/webcam.php
RWIS Archived Webcam Imagery	mesonet.agron.iastate.edu/RWIS/camera.phtml
ISU Campus Webcams	mesonet.agron.iastate.edu/current/isucams.phtml
Lapse Builder	mesonet.agron.iastate.edu/current/bloop.phtml
Recent Pre-Built Lapses	mesonet.agron.iastate.edu/current/camlapse/
Cool Lapses Archive	mesonet.agron.iastate.edu/cool/

---

8. Admin, Info, and Site Resources

Description	URL
IEM Homepage	mesonet.agron.iastate.edu/
About / Applications Mainpage	mesonet.agron.iastate.edu/apps.php
QC Mainpage	mesonet.agron.iastate.edu/QC/
Public QC Ticket Log	mesonet.agron.iastate.edu/QC/tickets.phtml
MADIS Network QC Overview	mesonet.agron.iastate.edu/QC/madis/network.phtml
Currently Offline Stations	mesonet.agron.iastate.edu/QC/offline.php
Variables Reference	mesonet.agron.iastate.edu/info/variables.phtml
Dataset Documentation	mesonet.agron.iastate.edu/info/datasets/
IEM Data in Published Research	mesonet.agron.iastate.edu/info/refs.php
IEM News Archive	mesonet.agron.iastate.edu/onsite/news.phtml