The following are free placefiles. I do not host any of these myself and simply provide them here as an index. Since they are free, and usually supported by unpaid hobbyists, they are more likely to have outages and other problems than dedicated providers such as AllisonHouse. Usage is at your own risk.
April 4, 2023: List updated.
Title
Labels
Source
AHPS River Gauges Colored by stage
Hydrologic
Red Team Weather
APRS — Tennessee Unfiltered
Observations, Tennessee
Placefile Nation
APRS — Tennessee Filtered to !TNWX
Observations, Tennessee
Placefile Nation
Atlantic Hurricane Tracks
Tropical
Placefile Nation
Buoys
Observations
Red Team Weather
Buoys — Looping
Observations
Red Team Weather
CoCoRaHS — Rain
Observations
Placefile Nation
CoCoRaHS — Snow
Observations
Placefile Nation
CWA Boundaries
Reference
Placefile Nation
CWA Boundaries — Customizable Add 3-letter NWS WFO ID to end
Reference
Red Team Weather
Flood Advisories — Looping
WWA, Hydrologic
Red Team Weather
Flood Warnings — Looping
WWA, Hydrologic
Red Team Weather
GFS LAMP Guidance Hourly
Forecast, Model
Red Team Weather
Hospitals — Tennessee
Tennessee
Placefile Nation
Iowa DOT Truck Locations
Winter, Iowa
ISU IEM
Iowa DOT Winter Road Conditions
Winter, Iowa
ISU IEM
Iowa Webcams — KCCI
Cameras, Iowa
ISU IEM
Iowa Webcams — KCRG
Cameras, Iowa
ISU IEM
Iowa Webcams — Overview KCCI, KCRG, KELO
Cameras, Iowa
ISU IEM
Lightning — Marked by "B" Blitzortung Lightning Network
Lightning
Saratoga Weather
Lightning — Not Marked by "B" Blitzortung Lightning Network
Lightning
Saratoga Weather
Lightning Rapid Refresh (STRIKE.BOT)
Lightning
FreeLightning.com
Lightning Last 20 minutes
Lightning
Placefile Nation
Lightning Last 40 minutes
Lightning
Placefile Nation
Lightning Last 60 minutes
Lightning
Placefile Nation
LightningCast GOES-East CONUS Alabama Sector
Lightning
CIMSS
LightningCast GOES-East CONUS Sector
Lightning
CIMSS
LightningCast GOES-East Meso1 Sector
Lightning
CIMSS
LightningCast GOES-East Meso2 Sector
Lightning
CIMSS
LightningCast GOES-West CONUS Sector
Lightning
CIMSS
LightningCast GOES-West Meso1 Sector
Lightning
CIMSS
LightningCast GOES-West Meso2 Sector
Lightning
CIMSS
Local Storm Reports SPC only
Reports
Chris Karsten, ISU
Mesonet — Full Oklahoma Mesonet
Observations, Oklahoma
Red Team Weather
Mesonet — Minimal Oklahoma Mesonet
Observations, Oklahoma
Red Team Weather
METAR — 1h Precip — Looping
Observations
Red Team Weather
METAR — 1h Precip
Observations
Red Team Weather
METAR — Aviation — Looping Colored by ceiling, visibility
Observations
Red Team Weather
METAR — Aviation Colored by ceiling, visibility
Observations
Red Team Weather
METAR — Classic
Observations
AllisonHouse
METAR — Classic — Looping No color
Observations
Red Team Weather
METAR — Classic, full — Customizable Use ?state=IA to filter by state
Observations
Red Team Weather
METAR — Classic, minimal — Customizable Use ?state=IA to filter by state
Observations
Red Team Weather
METAR — Dew Point Dep.
Observations
Red Team Weather
METAR — Dew Point Dep. — Looping
Observations
Red Team Weather
METAR — Dew Points
Observations
Placefile Nation
METAR — Dew Points
Observations
Red Team Weather
METAR — Dew Points — Looping
Observations
Red Team Weather
METAR — Heat Index
Observations
Placefile Nation
METAR — Heat Index
Observations
Red Team Weather
METAR — Heat Index — Looping
Observations
Red Team Weather
METAR — Iowa ASOS/AWOS
Observations, Iowa
ISU IEM
METAR — Looping Colored by dew point, MSLP
Observations
Red Team Weather
METAR — Pressure
Observations
Red Team Weather
METAR — Pressure — Looping
Observations
Red Team Weather
METAR — Relative Humidity
Observations
Red Team Weather
METAR — Simple
Observations
Red Team Weather
METAR — Simple — Looping
Observations
Red Team Weather
METAR — Temperatures
Observations
Placefile Nation
METAR — Temperatures
Observations
Red Team Weather
METAR — Temperatures — Looping
Observations
Red Team Weather
METAR — Visibility
Observations
Placefile Nation
METAR — Visibility
Observations
Red Team Weather
METAR — Visibility — Looping
Observations
Red Team Weather
METAR — Weather
Observations
Red Team Weather
METAR — Weather — Looping
Observations
Red Team Weather
METAR — Wetbulb Plot
Observations
Red Team Weather
METAR — Wetbulb Plot — Looping
Observations
Red Team Weather
METAR — Wind Barbs
Observations
Red Team Weather
METAR — Wind Barbs — Looping
Observations
Red Team Weather
METAR — Wind Chill
Observations
Red Team Weather
METAR — Wind Chill — Looping
Observations
Red Team Weather
METAR — Wind Gusts
Observations
Placefile Nation
METAR — Wind Gusts
Observations
Red Team Weather
METAR — Wind Gusts — Looping
Observations
Red Team Weather
METAR Colored by dew point, MSLP
Observations
Red Team Weather
METAR Colored by dew point
Observations
Red Team Weather
METAR Colored by theta-E
Observations
Red Team Weather
METAR Multi-colored plot
Observations
Placefile Nation
Mile Markers — Tennessee
Reference, Tennessee
Placefile Nation
mPING Past 15 minutes
Reports
Joe Moore (wxjoe.com)
mPING Past 15 minutes
Reports
Placefile Nation
mPING Past 30 minutes
Reports
Joe Moore (wxjoe.com)
mPING Past 30 minutes
Reports
Placefile Nation
mPING Past 60 minutes
Reports
Joe Moore (wxjoe.com)
mPING Past 60 minutes
Reports
Placefile Nation
mPING Past 300 minutes
Reports
Placefile Nation
MTEARS — Tennessee Connected
Observations, Tennessee
Placefile Nation
MTEARS — Tennessee Not Connected
Observations, Tennessee
Placefile Nation
NAWN Plot North American Weather Network
Observations
NAWN
NEXRAD L3 Attributes — Customizable Use ?nexrad=KDMX to customize site; ?tvs for TVS only; ?poh=50 for hail probability of 50%; ?meso=4 for MESO of 4; ?max_hail for hail size limiter
Radar
ISU IEM
ProbSevere v2
Severe
CIMSS
ProbSevere v2 — Looping
Severe
CIMSS
ProbSevere v3 — 1 Hour Loop
Severe
CIMSS
ProbTor v2
Severe
CIMSS
ProbTor v2 — Looping
Severe
CIMSS
ProbTor v3 — 1 Hour Loop
Severe
CIMSS
Radar Status — Level II
Radar
Placefile Nation
RWIS — Iowa RWIS
Observation, Iowa
ISU IEM
SPC Convective Outlook — Day 1
Severe
Placefile Nation
SPC Convective Outlook — Day 2
Severe
Placefile Nation
SPC Convective Outlook — Day 3
Severe
Placefile Nation
SPC Convective Outlook — Day 1 Hail probabilities
Severe
Placefile Nation
SPC Convective Outlook — Day 1 Wind probabilities
Severe
Placefile Nation
SPC Convective Outlook — Day 1 Tornado probabilities
Severe
Placefile Nation
SPC Convective Outlook — Day 1
Severe
Red Team Weather
SPC Convective Outlook — Day 2
Severe
Red Team Weather
SPC Convective Outlook — Day 3
Severe
Red Team Weather
SPC Fire Weather Outlook — Day 1
Fire
Red Team Weather
SPC Fire Weather Outlook — Day 2
Fire
Red Team Weather
SPC Mesoscale Discussions
Severe
Placefile Nation
SPC Watches
Severe
Placefile Nation
SPC Watches Use ?alpha=255 to set alpha value for used color
Severe
ISU IEM
Special Weather Statements — Looping
WWA
Red Team Weather
SPOT Forecast Past 12 hours
Fire
Joe Moore (wxjoe.com)
SPOT Forecast Past 24 hours
Fire
Joe Moore (wxjoe.com)
SPOT Forecast Past week
Fire
Joe Moore (wxjoe.com)
Spotter Network Reports
Reports
Spotter Network
Spotter Network — Positions
Spotters
Spotter Network
Spotter Network — Positions & Reports
Spotters
Spotter Network
Spotter Network — Positions & Reports w/ Names
Spotters
Spotter Network
Spotter Network — Positions Members w/ 5+ Acceptable Reports Only
Spotters
Spotter Network
Spotter Network — Positions w/ Names
Spotters
Spotter Network
Spotter Network — Positions w/ Names Members w/ 5+ Acceptable Reports Only
Spotters
Spotter Network
Spotter Network — Video Streamers
Spotters
Spotter Network
Spotter Network — Video Streamers w/ Names
Spotters
Spotter Network
Vectors
Observations
Red Team Weather
Vectors — Looping
Observations
Red Team Weather
Vectors Colored by altimeter
Observations
Red Team Weather
Vectors Colored by theta-e
Observations
Red Team Weather
Warning Pathcast — TOR Pathcast from TIME, MOT, LOC
Severe
ISU IEM
Warning Pathcast — TOR+SVR Pathcast from TIME, MOT, LOC in warnings; add ?valid= for four hour range of historical data
Severe
ISU IEM
Watches, Warnings, Advisories
WWA
Placefile Nation
Watches, Warnings, Advisories Polygons Only (No Shading)
WWA
Placefile Nation
Watches, Warnings, Advisories Polygons Only (Shading)