Aviation weather for iOS Beta
Preflight Weather for Pilots
METAR, TAF, winds aloft, NEXRAD, runways and live NOTAMs for more than 19,400 airports — every screen leading with what the numbers actually mean, in plain English, before it shows you the raw text.
Runways
The runway the wind favors, before you taxi.
ISR ScudRunner opens the runway screen with the answer — RWY 24R, six knots of headwind, three of crosswind — then gives you every runway pair with its dimensions, surface, and each end’s components as steady-to-gust ranges.
It comes from the same calculation as the crosswind line on the METAR screen, so the two screens can never name different runways. Calm, variable and non-reporting fields say exactly that, rather than showing components that aren’t defined.
BESTThe favored end is marked on the card, not buried in the numbers.
NEXRAD radar
A scope you can read in a sunlit cockpit.
Base reflectivity at 100, 50 or 25 nautical miles — and the range you chose last time is the range you get. Whole-number rings labeled on the ring itself, a six-frame loop covering about twenty-five minutes, and your GPS position as an overlay that never drags the scope off center.
The three markers differ in shape as well as color — a dot for the scope center, a triangle for the tower, a diamond for your fix — so they survive glare and color blindness alike. The scope centers on whatever you picked, because your field can sit well outside the nearest tower’s tight ring.
NOTAMs
NOTAMs that tell you when they don’t know.
Live from ISR ScudRunner’s own FAA mirror and sorted into eight categories — runways and taxiways, lighting, airspace, NAVAID and comms, obstacles, procedures, services, and everything else — each card carrying the FAA’s scenario name, the effective window, and the raw text.
Every state is explicit, because the dangerous failure here isn’t confusion — it’s reading “no NOTAMs shown” as “no NOTAMs”. An empty result says the mirror reports none. A failure says the fault is ours, and not a statement about your field. A mirror that has stopped updating says so on screen.
Terminal forecast
A TAF broken into the hours it describes.
The screen opens with the category the forecast starts in and the window it covers — VFR, 190° at 6 knots, six-plus miles, broken 12,000 — then splits the rest into a card per change group: the base forecast first, then each FM period in the order you’ll fly through them.
Every period carries its own flight category, so a forecast that drops to MVFR by evening says so on the card instead of leaving you to find it in the shorthand. The times are the ones on your watch, not Zulu. And the raw TAF stays on screen above the decode, unedited, because the plain-English read is a convenience and never a replacement for it.
Daily forecast
The day ahead, not just the hour you’re in.
A METAR tells you what the field is doing now, and a TAF reaches about a day out. The Daily screen answers the question underneath the one you asked — is Thursday morning worth planning around? — with the National Weather Service forecast for the field itself, opening in plain English: partly sunny, with a high near 88.
An hourly strip carries the next six hours at a glance, and the seven-day outlook gives each day its precipitation chance and a temperature range bar you can read straight down the week. Humidity and dew point close the screen — the two numbers that decide whether that afternoon haze burns off.
Also on board
Everything else the preflight asks for.
Winds aloft
Read out of teletype shorthand: VALID 121800Z becomes a dated valid-and-use line.
Forecast discussion
The forecaster’s own reasoning from the issuing office — with what changed since the last issuance, and the key messages, lifted to the top.
Nearby weather
The fields around you with category, observation age and CTAF — and one that isn’t reporting says so, rather than quietly going blank.
Airport diagrams
Official FAA diagrams for about 900 fields, with a map overlay and a generated schematic as offline fallbacks.
Airport map
Runways over an OpenFreeMap basemap, framed by a span in nautical miles rather than a bounding box.
Frequencies
Weather, clearance, ground, tower, CTAF and approach as one card each — and ASOS numbers you can tap to call.
Design rules that are load-bearing
Built for the cockpit, not for the screenshot.
Units are standard, and that isn’t a setting.
There are no unit preferences anywhere in the app. A toggle that lets you read a METAR in units it wasn’t written in is a hazard, not a feature.
Meaning is never carried by color alone.
Scope markers differ in shape. Radar-site status is a shape plus a label. Tappable phone numbers are underlined as well as blue.
Values are spelled out.
The wind tile reads 28 Gusting 40 kts, not 28G40kt. The raw observation below already carries the code.
TestFlight beta
Fly the beta before it reaches the App Store.
We’re looking for pilots to fly ISR ScudRunner™ against real preflights and tell us where it’s wrong. Invites go out in small batches.
Limited to 25 pilots for this round · iOS 16.0 or later · iPhone and iPad