Data health

Storm Mode / Tracked area

Severe storms: Arizona

Wall mode

0 warnings total · 0 tornado warnings · 0 alerts including watches and advisories

Current alert feed · checked

Warnings in area

0 of 0 alerts

No active alerts reported by the current feed in this monitoring area.

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Layers

Map

NWS’s polygons as issued, or the zones a zone-issued alert names; SPC’s watches by their counties. Checked . Data: NOAA/NWS, NOAA/SPC.

Agency warning geometry · no observed imagery displayed
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Interactive imagery loads separately. Missing radar does not remove warnings or imply clear weather.

Alert outlines: NOAA/NWS; cell points/observed segments: IEM/NEXRAD. A warning polygon is not a tornado footprint.

Lightning activity — GOES GLM

Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.

Cached lightning observations have not loaded. An empty map is not zero lightning.

Cached lightning source details and text readings

Snow analysis — NOHRSC

Source-rendered snow depth and snow water equivalent for the lower 48. History changes this snow picture only; warnings and radar keep their own clocks.

Stored snow depth · footprint valid 2026-10-18 06:00:00 UTC, picture retrieved 2026-10-18 12:23:04.796 UTC.

No NOHRSC picture displayed on the interactive map.

  • 0 - 0.39 in
  • 0.39 - 2.0 in
  • 2.0 - 3.9 in
  • 3.9 - 9.8 in
  • 9.8 - 20 in
  • 20 - 39 in
  • 39 - 59 in
  • 59 - 98 in
  • 98 - 197 in
  • 197 - 295 in
  • 295 - 394 in
  • 394 - 787 in
NOHRSC snow analysis for the lower 48; see the adjacent source legend and time qualification
NOAA/NWS/NOHRSC’s original picture and legend. No station or address value is inferred.

NOHRSC footprint times are metadata; pixel analysis time is not independently verified. Snow-depth pixels have previously differed from the footprint time. This is modeled/assimilated snow analysis, not a measurement at a place. Unshaded and no-data areas do not establish zero snow.

Snow pictures, retained history and source provenance

Change time or forecast product

Replay uses retained source bytes. Recording begins with activation; missing history is not clear weather.

Live sources keep independent clocks.

Replay coverage and interpretation

Rolling target: 24 hours; cells: six hours. Radar: NOAA MRMS national overview, 8-minute tolerance. Satellite: original GOES GeoColor day/night picture, hourly sampling, 75-minute tolerance. No interpolation or latest-image fallback. Warning and source checks retain their own clocks. “Recorded by” is collector acquisition evidence, not exact browser publication history.

Current GLM density, velocity and specialist layers are hidden during replay. Snow uses retained footprint metadata with unverified pixel time. Forecast uses one pinned issuance/run and exact valid time.

No observed replay frame displayed.

Open the complete replay reader (works without scripting or WebGL)
Radar-derived cells (13) · current

Collector checked ; feed generated . Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.

  1. FSX / A9 · scan 2026-10-18T14:56:53Z · current
  2. FSX / L9 · scan 2026-10-18T14:56:53Z · current
  3. IWA / F1 · scan 2026-10-18T14:56:01Z · current
  4. IWA / G1 · scan 2026-10-18T14:56:01Z · current
  5. IWA / I1 · scan 2026-10-18T14:56:01Z · current
  6. IWA / J1 · scan 2026-10-18T14:56:01Z · current
  7. IWA / K1 · scan 2026-10-18T14:56:01Z · current
  8. IWA / Y0 · scan 2026-10-18T14:56:01Z · current
  9. IWA / Z0 · scan 2026-10-18T14:56:01Z · current
  10. YUX / C8 · scan 2026-10-18T14:58:09Z · current
  11. YUX / S7 · scan 2026-10-18T14:58:09Z · current
  12. YUX / T5 · scan 2026-10-18T14:58:09Z · current
  13. YUX / V3 · scan 2026-10-18T14:58:09Z · current
Station and river observations (31)

Surface source current; observed water-level source current. Each reading keeps its own time. Map markers show at most 500 stations and 500 gauges; the complete source directory is paginated.

Circle: surface station; square: water-level gauge. Filled: current reading and source; hollow: stale, unconfirmed or missing observation. Marker color is not a hazard category. Enable “Stations and gauges” in Layers to inspect them on the map.

Showing 31 of 31 listed sources. All surface stations and retained trends · All supported gauges and forecasts

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Surface station KGEU

current · Observed 2026-10-18 14:47:00 UTC · wind 0 kt · temperature 20 °C.

Station KGEU · -112.293, 33.528 (longitude, latitude).

Source checked 2026-10-18 15:00:05.322Z · current.

Station observations, not an address forecast or cyclone maximum wind. Maintenance-flagged, old and implausible reports are excluded by the existing parser; this is not independent NWS quality control.

Retained observations: 13; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-17 15:53:00 UTC.

Observed sustained wind at KGEU (kt)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.19.8-1.8kt10-17 15:53Z10-18 14:47Z2026-10-17 15:53:00 UTC · 18 kt2026-10-17 16:50:00 UTC · 18 kt2026-10-17 17:50:00 UTC · 15 kt2026-10-17 18:50:00 UTC · 13 kt2026-10-17 19:50:00 UTC · 15 kt2026-10-17 20:47:00 UTC · 10 kt2026-10-17 21:47:00 UTC · 9 kt2026-10-17 22:50:00 UTC · 12 kt2026-10-17 23:47:00 UTC · 7 kt2026-10-18 00:47:00 UTC · 5 kt2026-10-18 01:51:00 UTC · 5 kt2026-10-18 13:47:00 UTC · 3 kt2026-10-18 14:47:00 UTC · 0 kt
Observed sustained wind · 13 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Temperature, dew point and pressure trends
Observed temperature at KGEU (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.2719°C10-17 15:53Z10-18 14:47Z2026-10-17 15:53:00 UTC · 22 °C2026-10-17 16:50:00 UTC · 23 °C2026-10-17 17:50:00 UTC · 24 °C2026-10-17 18:50:00 UTC · 23 °C2026-10-17 19:50:00 UTC · 24 °C2026-10-17 20:47:00 UTC · 25 °C2026-10-17 21:47:00 UTC · 25 °C2026-10-17 22:50:00 UTC · 26 °C2026-10-17 23:47:00 UTC · 26 °C2026-10-18 00:47:00 UTC · 25 °C2026-10-18 01:51:00 UTC · 24 °C2026-10-18 13:47:00 UTC · 20 °C2026-10-18 14:47:00 UTC · 20 °C
Observed temperature · 13 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed dew point at KGEU (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.10.6-8.6°C10-17 15:53Z10-18 14:47Z2026-10-17 15:53:00 UTC · -7 °C2026-10-17 16:50:00 UTC · -6 °C2026-10-17 17:50:00 UTC · -5 °C2026-10-17 18:50:00 UTC · -5 °C2026-10-17 19:50:00 UTC · -5 °C2026-10-17 20:47:00 UTC · -4 °C2026-10-17 21:47:00 UTC · -3 °C2026-10-17 22:50:00 UTC · -2 °C2026-10-17 23:47:00 UTC · 0 °C2026-10-18 00:47:00 UTC · 1 °C2026-10-18 01:51:00 UTC · 2 °C2026-10-18 13:47:00 UTC · 8 °C2026-10-18 14:47:00 UTC · 9 °C
Observed dew point · 13 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.

Observed sea-level pressure: no readable observations.

Observed reports as a table (13)
Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
2026-10-17 15:53:00 UTC18 / Not reported6022 / -7Not reported10 or more
2026-10-17 16:50:00 UTC18 / Not reported6023 / -6Not reported10 or more
2026-10-17 17:50:00 UTC15 / Not reported6024 / -5Not reported10 or more
2026-10-17 18:50:00 UTC13 / Not reported6023 / -5Not reported10 or more
2026-10-17 19:50:00 UTC15 / Not reported5024 / -5Not reported10 or more
2026-10-17 20:47:00 UTC10 / Not reported7025 / -4Not reported10 or more
2026-10-17 21:47:00 UTC9 / Not reported4025 / -3Not reported10 or more
2026-10-17 22:50:00 UTC12 / Not reported4026 / -2Not reported10 or more
2026-10-17 23:47:00 UTC7 / Not reported6026 / 0Not reported10 or more
2026-10-18 00:47:00 UTC5 / Not reported6025 / 1Not reported10 or more
2026-10-18 01:51:00 UTC5 / Not reported4024 / 2Not reported10 or more
2026-10-18 13:47:00 UTC3 / Not reported1020 / 8Not reported10 or more
2026-10-18 14:47:00 UTC0 / Not reportedCalm20 / 9Not reported10 or more
Capture times, quality and provenance

Each report keeps its observation time, first capture of this version, and the SHA-256 of the source bulk body. Corrections at the same observation time replace that point and are marked; unrelated bulk-file changes do not freshen a report.

  • Observed 2026-10-17 15:53:00 UTC, captured 2026-10-17 16:00:07.184Z; source body SHA-256 011c3be17b8bb37fe5f6ec9648267ed81c7e9853e6a8b98b8ad0bb065dff5968.
  • Observed 2026-10-17 16:50:00 UTC, captured 2026-10-17 17:00:06.696Z; source body SHA-256 b8be3a3f9dbb0f9d47f7f7d56c511352303f71121022093aee1718b59882e480.
  • Observed 2026-10-17 17:50:00 UTC, captured 2026-10-17 18:00:07.907Z; source body SHA-256 87f841dd0eda299799ecfa27669c14712906e9b7f2462af1e9aaebc60f5a4644.
  • Observed 2026-10-17 18:50:00 UTC, captured 2026-10-17 19:00:06.492Z; source body SHA-256 9b92790a99ac0e8c2777442829b2a9236f72d6e831b8d9a0836ca29a9d3acbba.
  • Observed 2026-10-17 19:50:00 UTC, captured 2026-10-17 20:00:08.337Z; source body SHA-256 b75985c438912b2da4a26e309fc2fbabef235be8a13c5848c5c5d64297850019.
  • Observed 2026-10-17 20:47:00 UTC, captured 2026-10-17 21:00:07.279Z; source body SHA-256 79c0cc8ae6d502baffa56263b2daf4c86fd1628f11d5a529402c527d0ff32fe1.
  • Observed 2026-10-17 21:47:00 UTC, captured 2026-10-17 22:00:07.362Z; source body SHA-256 f1fa85855e007d5d5b85e6dbf4575f6d6bfe58fd5c9a7bb6d9e9cc636ec4c3b2.
  • Observed 2026-10-17 22:50:00 UTC, captured 2026-10-17 23:00:07.092Z; source body SHA-256 2ee1214ad66de98865565d92f21f7f5094d6b2e4ef4f09839341a5e6cd89b61b.
  • Observed 2026-10-17 23:47:00 UTC, captured 2026-10-18 00:00:09.347Z; source body SHA-256 fe50c177f37463edb2970e7df309ca8243c740fe7f3ba6344704878ab6922ee2.
  • Observed 2026-10-18 00:47:00 UTC, captured 2026-10-18 01:00:10.019Z; source body SHA-256 949eb463d93270208adccd66994771bf859674b804d78a93f2b1e78571af9b73.
  • Observed 2026-10-18 01:51:00 UTC, captured 2026-10-18 02:00:07.747Z; source body SHA-256 2a808d30ef24af292625f66ac29ed87d3497f0029e7978811a5214db4d4e391c.
  • Observed 2026-10-18 13:47:00 UTC, captured 2026-10-18 14:00:06.781Z; source body SHA-256 d5bb4158d51e4be8ae455671d404663bf3c089899145baea8f175a4f02ee691b.
  • Observed 2026-10-18 14:47:00 UTC, captured 2026-10-18 15:00:07.750Z; source body SHA-256 fb3f3094c11b10dd11208847ba057d3a914f9c474065557688b031827858eed4.

Values use the decoded station report. Null means not reported, never zero. Gust is kept separate from sustained wind.

Observation source page · Cached readings as JSON · Official source

Recent source changes

Recording coverage and limits
  • warnings: retained from 2026-10-17T15:04:06.684Z through 2026-10-18T15:04:04.134Z
  • outlooks: retained from 2026-10-17T15:04:06.684Z through 2026-10-18T15:00:08.382Z
  • hydro: retained from 2026-10-17T15:04:06.684Z through 2026-10-18T14:55:08.608Z
  • analysis: retained from 2026-10-17T15:04:06.684Z through 2026-10-18T15:00:07.750Z
  • winter: retained from 2026-10-17T15:04:06.684Z through 2026-10-18T14:53:04.500Z

Source-message history is not recorded imagery replay. Recorded radar/satellite imagery is not available in this view.

Checks every minute; each layer keeps its own time.

Spotlight: SPC Day 1 outlook

1 of 5

SPC Day 1 outlook

  • General Thunderstorms Risk highest in this area

SPC’s Day 1 categorical outlook, valid to , issued . SPC’s categories, as drawn. Data: NOAA/SPC.

Watches

No tornado or severe thunderstorm watch in force in this area.

SPC’s watches, by number, matched by the counties they list. Data: NOAA/SPC.

Mesoscale discussions

No mesoscale discussion reaches this area.

SPC’s mesoscale discussions whose outline reaches the area. Data: NOAA/SPC.

Storm ingredients

SPC’s hourly mesoanalysis, observed soundings and model guidance for the area, on the Analysis tab with its own clocks.

Open the Analysis tab

Drawn by the Analysis tab’s own renderer. Data: NOAA/SPC, NOAA/NCEP.

Radar

NOAA’s radar for the area, loaded by your browser as on the Radar page.

Open the radar

Live tiles; the radar keeps no last-good copy.

What changed, last 60 minutes

since , when this server began watching this area

Nothing has changed since 14:33Z.

The products’ own words and times, and what is no longer in force since the last read. Never written by AI.

Monitoring area, legacy alert summary and selection rules
Area
Arizona (NWS states: AZ)
Hazards
Severe thunderstorm warnings, watches and advisories, and the forecasts for them
Window
In force now, with the next days of SPC’s and WPC’s products
Made by
This address: anyone can make one, and nothing is stored. Change the area or hazards

An area you chose, not a storm’s footprint: everything here is in force in this area, never “from this storm”.

In force in this area

No warning, watch or advisory for these hazards is in force in this area.

NWS’s alerts checked : a successful check, so this is none in force, not “can’t tell”.

Sources

Choose another storm or areaChange monitoring areaSource status

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.