WeatherAlarmApp
Alerts for the people you love
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Severe weather alerts for the people you love. Now with an official wind reading in every Post-Storm Report and a smarter home screen widget.
No account required, no ads, no tracking: WeatherAlarm sends you push notifications the moment the National Weather Service issues a warning for your monitored locations. Whether it’s your home, your parents’ house, or your kid’s college town — you’ll know before the sirens go off.
Instant NWS Alerts
Tornado warnings, severe thunderstorm warnings, flood warnings, winter storm warnings, and more — delivered to your phone within minutes of NWS issuance. No delays, no missed alerts.
Enhanced Tornado Warnings
WeatherAlarm classifies tornado warnings by severity — Radar Indicated, Confirmed, Life-Threatening (PDS), and Tornado Emergency — so you know exactly how serious the threat is. If a warning escalates, you’ll get an updated notification.
5-Day Forecast with Risk Timeline
Tap any location to see a 5-day forecast with built-in risk indicators. See at a glance which days have SPC severe weather outlooks, freeze potential, flood risk, or high winds — before the warnings are even issued.
SPC Convective Outlooks
View Storm Prediction Center outlooks on an interactive map with Day 1-3 risk polygons. An “Upcoming Risks” section shows Day 4-8 severe weather probabilities so you can plan ahead.
Monitor the People You Care About
Add unlimited locations — home, family, friends, vacation spots. Each location gets its own alerts, forecast, and risk indicators. WARNING and WATCH badges make it easy to scan what’s active at a glance.
more I've been on the hunt for an app that allows me to input my loved one's locations and receive notifications for this storm season, and this one takes the cake. It's UI is simple, relatively intuitive (if you're familiar with other weather apps), and my favorite part: is absolutely, completely free. Thank you for posting the link on the tornado Facebook group! This has been a game-changer for me 😁
I've been on the hunt for an app that allows me to input my loved one's locations and receive notifications for this storm season, and this one takes the cake. It's UI is simple, relatively intuitive (if you're familiar with other weather apps), and my favorite part: is absolutely, completely free. Thank you for posting the link on the tornado Facebook group! This has been a game-changer for me 😁
I love the simplicity of this app and how it consistently functions. I love the fact that I don’t have to create another account with a user name and password I will most likely forget. Thanks for creating this!!
I love the simplicity of this app and how it consistently functions. I love the fact that I don’t have to create another account with a user name and password I will most likely forget. Thanks for creating this!!
I used this app last night when I had severe weather and it worked good; however, there are issues starting with getting an error that it won’t let me access the toggles until I restart the app. Well I did multiple times and the options were still greyed out. Also, one time when using the app, it completely erased my location and I had to manually re-add it again. I have also sent the developer multiple emails and have not heard back. The only reason the review is not one star is because it picked up the watch and warning for my location.
Developer Response Thank you for the feedback! I checked the contact@weatheralarm.net email address and do not see any feedback submitted. Please confirm that is the email address that you used!I am struggling to reproduce your issue with the toggles being greyed out as I can’t find any code that would enable or disable them. If you can email the address above with steps to reproduce it I’m happy to look into it!Did you happen to disable and re-enable notifications? Disabling notifications may trigger a condition where locations are deleted server side since we do not require accounts, the unique ID generated when notifications are disabled is used to track monitored locations. We will make this more clear in a future version.
I used this app last night when I had severe weather and it worked good; however, there are issues starting with getting an error that it won’t let me access the toggles until I restart the app. Well I did multiple times and the options were still greyed out. Also, one time when using the app, it completely erased my location and I had to manually re-add it again. I have also sent the developer multiple emails and have not heard back. The only reason the review is not one star is because it picked up the watch and warning for my location.
Thank you for the feedback! I checked the contact@weatheralarm.net email address and do not see any feedback submitted. Please confirm that is the email address that you used!I am struggling to reproduce your issue with the toggles being greyed out as I can’t find any code that would enable or disable them. If you can email the address above with steps to reproduce it I’m happy to look into it!Did you happen to disable and re-enable notifications? Disabling notifications may trigger a condition where locations are deleted server side since we do not require accounts, the unique ID generated when notifications are disabled is used to track monitored locations. We will make this more clear in a future version.
The whole arc of a storm — before it forms, while it's happening, and after it passes — for the people you love.
• Post-Storm Report now includes an official wind reading from the nearest weather station — the same kind of measurement meteorologists trust — alongside the existing radar estimate and any storm spotter reports, so you get the most reliable number for how strong the wind actually got.
• Settings → Default Radar Site lets you choose a specific NEXRAD station for the Map to always open to, with one-tap shortcuts for whichever site is nearest to each of your saved locations.
• A new screen explains why WeatherAlarm needs notification access before the system dialog appears, and Settings now flags clearly if notifications are off — so a loved one's alerts never go silently unnoticed.
• The home screen widget now leads with the monitored location's name, shows "Checked Nm ago" even on a calm day, and comes in new Lock Screen and StandBy sizes.
• Radar now retries automatically on a shaky connection, shows a live download counter so a slow load reads as working instead of stuck, and no longer loses your scrubber history if part of a download fails.
• A new 8-14 Day Outlook map layer shows whether temperature and precipitation are leaning above or below normal in the week-plus ahead, from NOAA's Climate Prediction Center.
2.1.1 1d ago
The whole arc of a storm — before it forms, while it's happening, and after it passes — for the people you love.
POST-STORM REPORT
After severe weather passes, open a monitored location to see what actually happened there: how close the storm's core came, whether hail, damaging wind, or heavy rain reached them, and — for tornado warnings — whether radar saw a debris signature near their spot. Now shows the radar image from the exact moment the storm was closest. Reconstructed from the radar archive, so it works even if the app wasn't open. Radar can miss weak tornadoes — always check on someone directly.
FUTURE RADAR, NOW WITH PRODUCTS
Tap the clock on the Map and slide up to 18 hours ahead to see HRRR forecast radar — where storms are expected to be, not just where they are now. Switch between plain reflectivity and reflectivity shaded by precipitation type (rain, snow, ice). It's a model forecast, always labeled FORECAST, never live radar.
LIVE SATELLITE VIEW
A new Satellite map layer drapes near-real-time GOES imagery over the map — watch clouds and wildfire smoke move from space, refreshed every few minutes, now covering the Lower 48 plus southern Canada, Mexico, and the Caribbean. Scrub the radar timeline back and the satellite view moves with it.
HURRICANE SEASON, WITH NEW ALERTS
Five new tropical map layers — forecast cone, track, 7-day formation outlook, wind-speed probability, and storm surge (graded in feet) — plus a Tropical Risk card that tells you directly if a loved one's location falls inside an active storm's forecast path. New: get notified automatically the moment a monitored location enters a hurricane's forecast cone.
WILDFIRES & AIR QUALITY, WITH NEW ALERTS
New Fire Perimeter and Smoke map layers, tappable active-fire pins, and an Air Quality card on every monitored location with plain-language health guidance. New: get notified if the air where a loved one is turns hazardous.
Also in this update: dozens of accuracy and reliability improvements to storm proximity tracking, radar site selection, and Post-Storm Report accuracy across both the map and every alert screen.
2.1 Jul 9
WeatherAlarm 2.0 — a beautiful new look.
We've completely redesigned the app around a sleek dark theme, crisp sky-blue accents, and deep navy backgrounds — so live radar and severe-weather colors stand out, with a cleaner, more polished feel on every screen.
Also new since our last release:
• Hail & wind swaths and a storm-history scrubber to replay a storm's path
• Tornado debris-signature detection for radar-confirmed tornadoes
• Rainfall totals with a tap-to-read value on any point of the radar
• Share an alert or an SPC outlook with a live map link — recipients with the app open it right inside
• Mesoscale Discussion alerts and an in-app viewer
• Editable location addresses and sharper, faster radar
Thank you for trusting us to help you watch over the people you love.
2.0 Jul 1
Our biggest update yet — packed with new ways to watch over the people you love.
SHARE THE WEATHER
• Share any warning, watch, or the day's severe-weather outlook with a single tap. Family and friends get a clear preview and a link that opens WeatherAlarm — or a web page if they don't have it yet.
RICHER RADAR
• Scrub back through about the last hour of radar and watch storms move through time, with their cell markers and history trails.
• Long-press anywhere on the radar to read the exact value at that spot ("52 dBZ", "3.2 in"), with a color-scale legend.
• Hail & wind swaths reveal the cumulative footprint of a storm's damaging core.
• Share a radar loop as a video or still image, timestamped, right from your phone.
• Radar-confirmed tornado debris detection flags a "DEBRIS DETECTED" signature when the radar sees it.
MORE ON THE MAP
• New optional layers: Local Storm Reports (real ground-truth reports) and SPC Mesoscale Discussions (tap to read).
• Tap overlapping alerts and get a clean, de-duplicated list of exactly what's there.
SMARTER ALERT DETAIL
• Flood warnings now show rainfall — storm-total precipitation and the peak in the warned area — instead of generic radar.
• Warnings and watches show a radar view framed on the alert.
• Expired alerts clearly show a "No longer active" banner.
Plus dozens of accuracy, reliability, and polish improvements throughout.
Stay safe out there — and keep an eye on the people who matter most.
1.12.20 Jul 1
Severe weather alerts for the people you love.
NEW
• Tornado debris detection — when radar sees the dual-polarization signature of debris lofted by a tornado on the ground, the alert shows a clear "DEBRIS DETECTED" confirmation. The strongest radar-only sign a tornado is happening right now, day or night.
• Share the radar — export the radar loop as a video, or the current frame as an image, right from the Map. It captures your view exactly: your orientation and whatever layers you have on (warnings, watches, your saved locations, and more).
• New map layers — Local Storm Reports (live hail, wind, tornado, and flood reports from the ground) and SPC Mesoscale Discussions (tap any to read the forecaster's discussion).
• Hail & Wind swaths — see the path a storm's hail core or damaging winds have already tracked, built right on your device.
• Share any alert — text a clear safety message and a link for any warning or SPC outlook to the people you love.
IMPROVED
• A longer radar history loop, more accurate storm-proximity (it tracks the leading edge of the storm reaching you), clearer flood-vs-thunderstorm coloring, and a range of reliability fixes.
1.12.19 Jun 26
Enhanced storm tracking algorithms.
1.12.18 Jun 13
Severe weather season is here, and this update makes the radar and storm tracking clearer when it matters most.
• Tap and hold anywhere on the radar to see exactly what's there — rainfall totals, storm intensity, and more — shown just above your finger so it's never hidden.
• An always-on color key now explains what the radar colors mean, so you're never guessing.
• New radar views: Storm Total Rainfall (ideal for flash-flood threats), storm intensity, and storm-top height.
• Clearer storm-approach details on every alert — whether a storm is heading toward your location, how far away it is, and when it's expected.
• Faster, more reliable alerts, plus a range of stability fixes.
Stay safe out there.
1.12.17 Jun 9
Significantly improved tornado direction mapping
Allergy forecasts for any location named home, apartment, or house.
1.11 Jun 3
v1.10.1: Bug fixes improving accuracy of storm tracks. 1.10.0 notes below.
v1.10.0 is the biggest update WeatherAlarm has ever shipped.
NEW — Storm Proximity Card
Every active warning now shows the storm cell's distance, heading, and minutes-to-impact for each address you watch. Built into every notification and the AlertDetail screen. The card updates every radar volume sweep so you always know where the storm is relative to the people you love.
NEW — On-Device NEXRAD Level II Radar
Switch the map to Level II radar and you're looking at the same super-resolution data your local NWS forecaster sees. Reflectivity, velocity, storm-relative velocity, correlation coefficient, and VIL. Rendered on-device with bilinear sampling — no streaming, no degraded mobile version.
NEW — Storm-Cell Tracking
The app extracts storm cells from the radar volume and tracks them across sweeps using nearest-neighbor matching with motion smoothing. White track cones project the cell's path with horizon labels at +5, +15, +30, and +60 minutes.
NEW — Severe-Thunderstorm Escalation Tiers
NWS categorizes severe-thunderstorm warnings by intensity: base, Considerable Damage, and Destructive. WeatherAlarm now pushes each escalation as a separate update so you know when the storm has worsened. Tornado warnings escalate through Confirmed, Particularly Dangerous Situation (PDS), and Emergency.
NEW — Widget
Add the WeatherAlarm widget to your home screen for at-a-glance active alerts for any of your monitored addresses. Tap it to open straight to the alert.
IMPROVED — Polygon-based Impact Testing
Alerts now fire when the official NWS warning polygon intersects one of your monitored locations — more precise than county-level matching. Fewer false alarms.
IMPROVED — Map Performance
Complete rewrite of the map view on MapLibre with a custom Metal layer for the radar. Smooth pan and zoom while the radar updates live, with a force-refresh button, play/scrub timeline, legend popover, and a pulsing site indicator.
IMPROVED — Notification Copy
"Tornado Warning · Mom" (with your location label) replaces the generic warning title. Body copy uses the actual NWS-stated motion and includes plain-language safety instruction. We dropped emoji clutter and jargon.
IMPROVED — Push Speed
Worker pipeline tuning + Cloudflare D1 split + NWWS-OI XMPP relay deliver tornado warnings to your phone typically within seconds of NWS issuance.
IMPROVED — Accessibility
VoiceOver labels on every safety-critical surface. Reduce Motion honored. Larger tap targets on the map.
IMPROVED — Cross-Timezone Awareness
Monitor an address in a different timezone? WeatherAlarm now uses that location's local time for all displays — not your phone's timezone.
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A note from the developer: Thank you for trusting WeatherAlarm to watch the people you love.
1.10.1 May 25
v1.10.0 is the biggest update WeatherAlarm has ever shipped.
NEW — Storm Proximity Card
Every active warning now shows the storm cell's distance, heading, and minutes-to-impact for each address you watch. Built into every notification and the AlertDetail screen. The card updates every radar volume sweep so you always know where the storm is relative to the people you love.
NEW — On-Device NEXRAD Level II Radar
Switch the map to Level II radar and you're looking at the same super-resolution data your local NWS forecaster sees. Reflectivity, velocity, storm-relative velocity, correlation coefficient, and VIL. Rendered on-device with bilinear sampling — no streaming, no degraded mobile version.
NEW — Storm-Cell Tracking
The app extracts storm cells from the radar volume and tracks them across sweeps using nearest-neighbor matching with motion smoothing. White track cones project the cell's path with horizon labels at +5, +15, +30, and +60 minutes.
NEW — Severe-Thunderstorm Escalation Tiers
NWS categorizes severe-thunderstorm warnings by intensity: base, Considerable Damage, and Destructive. WeatherAlarm now pushes each escalation as a separate update so you know when the storm has worsened. Tornado warnings escalate through Confirmed, Particularly Dangerous Situation (PDS), and Emergency.
NEW — Widget
Add the WeatherAlarm widget to your home screen for at-a-glance active alerts for any of your monitored addresses. Tap it to open straight to the alert.
IMPROVED — Polygon-based Impact Testing
Alerts now fire when the official NWS warning polygon intersects one of your monitored locations — more precise than county-level matching. Fewer false alarms.
IMPROVED — Map Performance
Complete rewrite of the map view on MapLibre with a custom Metal layer for the radar. Smooth pan and zoom while the radar updates live, with a force-refresh button, play/scrub timeline, legend popover, and a pulsing site indicator.
IMPROVED — Notification Copy
"Tornado Warning · Mom" (with your location label) replaces the generic warning title. Body copy uses the actual NWS-stated motion and includes plain-language safety instruction. We dropped emoji clutter and jargon.
IMPROVED — Push Speed
Worker pipeline tuning + Cloudflare D1 split + NWWS-OI XMPP relay deliver tornado warnings to your phone typically within seconds of NWS issuance.
IMPROVED — Accessibility
VoiceOver labels on every safety-critical surface. Reduce Motion honored. Larger tap targets on the map.
IMPROVED — Cross-Timezone Awareness
Monitor an address in a different timezone? WeatherAlarm now uses that location's local time for all displays — not your phone's timezone.
—
A note from the developer: Thank you for trusting WeatherAlarm to watch the people you love.
1.10 May 23
Version 1.9.5 brings a major upgrade to the radar experience: a real-time native NEXRAD Level II viewer, with velocity and dual-pol overlays.
WHAT'S NEW
• Native Level II radar — tap a radar icon to see live decoded radar from any active National Weather Service site near you. New sweeps stream in chunk-by-chunk, so you see fresh data within seconds rather than waiting on a fixed 5-minute composite cycle.
• Velocity overlay — switch from Reflectivity (precipitation intensity) to Velocity to see the wind field inside a storm — the view warning meteorologists and storm chasers use to spot rotation.
• Correlation Coefficient (CC) overlay — the dual-pol "debris-ball" signature that confirms a tornado on the ground.
• Smarter site picker — radar sites are now sorted by distance from your monitored locations and grouped into Active (currently transmitting) and Archive sections.
• Measure tool — tap two points on the map to read out the distance in miles. Useful for sizing a storm or estimating its path to a location.
• Tornado warning detail — when you open a Tornado Warning, the detail view now drops straight into the native Level II radar for the closest active site, so you can see the rotation behind the warning.
• Cleaner radar layer — the older NEXRAD composite tile layer has been retired in favor of the native viewer. One radar mode, smoother playback, sharper imagery.
BUG FIXES
• Radar progress bar no longer gets stuck at "Starting..." when switching sites quickly.
• Radar progress bar moved to the bottom of the screen near the play controls.
• Map detail correctly handles donut polygons (warnings with interior holes).
• Several stability fixes around polygon hit-testing and overlay refresh.
Thanks for using WeatherAlarm.
1.9.5 May 11
New feature: Animated radar in map view
Bug fix: Radar on map view no longer flickers
1.9.2 May 3
• Map tab — a brand-new top-level tab. Toggle NWS Warnings, Watches, and Statements on/off, add a live NEXRAD composite radar layer, and overlay SPC outlooks from Day 1 through Day 8. Your monitored locations appear as pins. Tap any polygon to see the alert type, name, and expiration.
• Home-screen widget — add WeatherAlarm to your home screen in Small, Medium, or Large sizes. The widget shows your most urgent active alert at a glance, or a clear-skies state when nothing's active. It refreshes in the background so you don't have to open the app to stay current.
• Watch polygon maps on alert detail — severe thunderstorm watches and tornado watches now render their full coverage area on the alert detail map, matching the experience you already had for warnings.
• SPC extended outlook view — when one of your locations is affected, a new detail view shows the day-by-day SPC forecast with more context than the old single-card summary.
• Faster push delivery — alerts now arrive up to a minute sooner on average, thanks to a new direct connection to the National Weather Service's bulletin feed.
• Quieter Alerts tab — when the Weather Service reissues the same warning with a new ID, we now collapse the duplicates so the list stays clean.
• Smarter alert borders — only Tornado Warnings and Severe Thunderstorm Warnings get the colored card border, so the most urgent alerts stand out clearly.
1.9.1 Apr 29
Add new locations from your contacts
1.8 Apr 21
What’s New in v1.7
5-Day Forecast
Tap any location to see a detailed 5-day forecast with daily highs, lows, and conditions. Risk indicators highlight days with severe weather outlooks, freeze potential, flooding, or high winds.
Enhanced Tornado Warnings
Tornado warnings now display their NWS severity level — Confirmed, Life-Threatening, or Tornado Emergency — so you instantly know the threat. If a warning escalates, you’ll receive an updated notification.
Active Alerts on Location Detail
When viewing a location, any active watches or warnings appear at the top with a tappable banner that takes you to the full alert detail.
SPC Outlook Improvements
• Risk colors and badges on your locations list
• “Upcoming Risks” section shows Day 4-8 severe weather probabilities
• Locations sorted by risk level in the outlook view
• Tapping an SPC notification opens the outlook for that day
Visual Refinements
• WARNING, WATCH, and ADVISORY badges on alert cards
• Severity-colored card borders for active warnings
• Polished section headers, icons, and typography throughout
Reliability
• Faster alert delivery during severe weather outbreaks
• Improved notification processing when opening the app
• SPC data persists across app launches for instant display
1.7 Apr 12
In-App Alert Details
Weather alerts now open directly in the app instead of sending you to a browser. When you tap an NWS notification, you'll see the full alert text parsed into clear sections — what the hazard is, where it's happening, the impact, and safety instructions — all without leaving the app.
SPC Outlook View
A new SPC Outlook card appears in your Alerts tab showing the current Storm Prediction Center convective outlook at a glance. Tap it to see an interactive map with risk polygons overlaid on your monitored locations, a day selector (Day 1-8), and plain-language explanations of each risk level.
Grouped Alert Cards
When the same NWS warning affects multiple locations you're monitoring, it now shows as a single card listing all affected locations (e.g., "Home, Mom — Freeze Watch") instead of separate entries. Cleaner, less clutter.
Bug Fixes
- Fixed alerts not appearing for the second location when the same NWS warning covers multiple monitored locations
- Fixed stale alerts persisting after NWS replaces them with updated warnings
- Improved iPad map sizing for SPC outlook and radar views
- Fixed grouped alerts not marking as read when opened
1.6 Apr 7
Critical bug fix: The previous versions did not have a background refresh capability built-in, so APNS tokens would expire which caused for alerts to not be received by the device! Please update and open the app once!
1.5.4 Apr 1
Ability to set threshold for SPC outlook alerts
1.5.1 Mar 31
Better error handling when a non-supported location is added.
API updates to prepare for future versions of the app.
1.4 Mar 25
1. Fixed a bug where a 404 error would appear if users disabled notifications.
2. Users can now toggle alerts for individual types of weather events.
3. Watches (severe thunderstorm, tornado, winter weather, etc) are now supported!
4. Each notification now includes a deep link to the NWS or NOAA source!
5. New address picker with autocomplete!
6. Updated icon
7. Added splash screen
1.3 Mar 17
The whole arc of a storm — before it forms, while it's happening, and after it passes — for the people you love.
• Post-Storm Report now includes an official wind reading from the nearest weather station — the same kind of measurement meteorologists trust — alongside the existing radar estimate and any storm spotter reports, so you get the most reliable number for how strong the wind actually got.
• Settings → Default Radar Site lets you choose a specific NEXRAD station for the Map to always open to, with one-tap shortcuts for whichever site is nearest to each of your saved locations.
• A new screen explains why WeatherAlarm needs notification access before the system dialog appears, and Settings now flags clearly if notifications are off — so a loved one's alerts never go silently unnoticed.
• The home screen widget now leads with the monitored location's name, shows "Checked Nm ago" even on a calm day, and comes in new Lock Screen and StandBy sizes.
• Radar now retries automatically on a shaky connection, shows a live download counter so a slow load reads as working instead of stuck, and no longer loses your scrubber history if part of a download fails.
• A new 8-14 Day Outlook map layer shows whether temperature and precipitation are leaning above or below normal in the week-plus ahead, from NOAA's Climate Prediction Center.
more Version 2.1.1 1d ago
Data Not Linked to You The following data may be collected but it is not linked to your identity: