Data health

Storm Mode · Severe weather event

Test123

Weather Operations Mode
STORM MODEWeather tracking workspace

0 alerts in effect · 0 upcoming · 0 warnings

Current alert feed · checked

Alerts in area

0 of 0 alerts

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

Watched places

Places saved on this device appear here with scripting enabled.

Find or save a place
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
North ↑

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 2026-10-21 00:00:00 UTC, picture retrieved 2026-10-21 06:08:05.705 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

Recorded weather · gaps are marked. Coverage begins with recording activation.

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 (0) · current

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

    Station and river observations (149)

    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 100 of 149 listed sources. All surface stations and retained trends · All supported gauges and forecasts

    Selected details

    Close

    Surface station KSEQ

    unavailable · No observation in the latest cached source list. Retained readings below are historical; an absent gauge may have fallen below action stage or stopped reporting.

    Source checked 2026-10-21 10:15:06.819Z · 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: 0; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading none.

    No retained observations yet. Reload after the existing scheduled source pass runs.

    Observed reports as a table (0)
    Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
    No retained observations.
    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.

      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 changes

      No retained alert changes in this monitoring area. This is not proof that nothing changed.

      Source collection activity (30)
      • radar alerts · source revision · collected
      • gauge details · source revision · collected
      • rain 72h · source revision · collected
      • gauges observed · source revision · collected
      • mesoanalysis · source revision · collected
      • hrrr · source revision · collected
      • metars · source revision · collected
      • office hwo · source revision · collected
      • office afd · source revision · collected
      • radar alerts · source revision · collected
      • office hwo · source revision · collected
      • office afd · source revision · collected

      A new collection or source revision does not establish a consequential weather change.

      Recording coverage and limits
      • warnings: retained from 2026-10-20T10:22:47.486Z through 2026-10-21T10:22:03.454Z
      • outlooks: retained from 2026-10-20T10:22:47.486Z through 2026-10-21T10:20:05.504Z
      • hydro: retained from 2026-10-20T10:22:47.486Z through 2026-10-21T10:15:10.513Z
      • analysis: retained from 2026-10-20T10:22:47.486Z through 2026-10-21T10:15:10.194Z
      • winter: retained from 2026-10-20T10:22:47.486Z through 2026-10-21T10:08:05.046Z

      Source changes and imagery have separate recording coverage. Open Replay for retained weather frames.

      Checks every minute; each layer keeps its own time.

      About this monitored event

      This event, as this site’s operators set it up

      Kind
      Severe weather
      Window
      Open: no start or end was set
      Updated

      Analysis

      Area, source times and interpretation

      Current cached context, independently dated. Regional reference: TX; a reference within a wider monitoring area does not replace the complete warning geography. This section remains separate from the historical replay cursor and official cyclone forecast. Use Forecast to pin a retained model package.

      Soundings: what weather balloons measured

      SPC’s skew-T diagram and hodograph of the sounding at Maniwaki, Quebec (WMW), 00Z. Its levels are in the table below.
      Observed Sounding at Maniwaki, Quebec (WMW), for (10 h 22 min ago). SPC’s graphic; the values in its panels (CAPE, shear, the indices) are SPC’s computations from these levels. Data: NOAA/SPC.

      A balloon launched about an hour before the time named, measuring as it rose and drifted with the wind: the atmosphere above one place, at one time. Model soundings, which are forecasts, are not shown here.

      The levels this sounding was drawn from (54)
      Maniwaki, Quebec (WMW): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
      PressureHeightTemperatureDew pointWind
      1008 mb189 m7.20.2350° 1 kt
      1000 mb266 m12.0-1.0035° 5 kt
      988 mb367 m11.6-1.4—
      960 mb610 m9.6-2.5005° 9 kt
      925 mb914 m7.0-4.0000° 12 kt
      895 mb1184 m5.2-13.8—
      872 mb1396 m6.0-31.0—
      858 mb1524 m5.5-32.7020° 11 kt
      850 mb1605 m5.2-33.8030° 11 kt
      827 mb1829 m4.5-34.9045° 9 kt
      796 mb2134 m3.5-36.5000° 9 kt
      767 mb2438 m2.5-38.0340° 11 kt
      741 mb2716 m1.6-39.4—
      730 mb2836 m2.8-46.2—
      711 mb3048 m1.7-41.7325° 14 kt
      700 mb3174 m1.0-39.0325° 14 kt
      659 mb3658 m-2.3-38.0320° 18 kt
      634 mb3962 m-4.4-37.3325° 20 kt
      610 mb4267 m-5.5-42.0305° 22 kt
      587 mb4564 m-6.1-49.1—
      564 mb4877 m-7.8-45.1300° 26 kt
      539 mb5226 m-9.7-40.7—
      521 mb5486 m-11.9-41.5310° 26 kt
      500 mb5800 m-14.5-42.5310° 28 kt
      485 mb6029 m-16.7-36.7—
      435 mb6834 m-23.3-46.3—
      417 mb7141 m-26.1-32.1—
      405 mb7351 m-27.1-40.1—
      400 mb7440 m-27.9-40.9320° 23 kt
      377 mb7863 m-30.9-46.9—
      313 mb9144 m-41.8-53.7325° 27 kt
      300 mb9440 m-44.3-55.3325° 29 kt
      274 mb10042 m-48.5-60.5—
      256 mb10486 m-51.7-60.7—
      250 mb10640 m-51.7-61.7315° 27 kt
      240 mb10904 m-51.3-65.3—
      227 mb11265 m-51.3-67.3—
      200 mb12080 m-54.7-73.7320° 56 kt
      180 mb12750 m-55.3-78.3—
      154 mb13716 m-58.6-81.6300° 56 kt
      150 mb13900 m-58.9-81.9305° 53 kt
      133 mb14657 m-59.7-83.7—
      121 mb15240 m-61.6-84.8300° 42 kt
      105 mb16154 m-62.5-86.5300° 39 kt
      100 mb16430 m-61.7-86.7300° 48 kt
      85 mb17448 m-63.3-88.3—
      75 mb18246 m-63.9-88.9—
      64 mb19202 m-61.6-89.5290° 25 kt
      52 mb20422 m-61.7-89.5315° 18 kt
      41 mb21946 m-59.1-89.0340° 10 kt
      31 mb23806 m-59.1-89.1—
      20 mb26490 m-54.5-86.5335° 13 kt
      10 mb30950 m-47.7-84.7295° 19 kt
      6 mb34367 m-43.1-83.1—
      Every station with a sounding (75)

      SPC observed soundings checked · Data: NOAA/SPC

      Spotlight: SPC Day 1 outlook

      1 of 8

      SPC Day 1 outlook

      • General Thunderstorms Risk highest in this area
      • Marginal Risk
      • Slight Risk
      • Enhanced Risk

      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.

      Flash-flood risk, Day 1

      • Marginal

      WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.

      River gauges in flood

      No river, coastal or lake gauge in this area is in flood, observed or forecast; 2 gauges at action stage.

      NWS’s gauges at flood stage or above in the area, worst first, each with its forecast hydrograph on Rain & rivers. Data: NOAA/NWPS.

      Rain expected and rain that fell

      WPC’s rain forecast and MRMS’s radar estimate of the rain that fell, on the Briefing’s map for the area.

      Open Rain & rivers

      Data: NOAA/WPC, NOAA/NSSL MRMS.

      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

      Nothing has changed in the last 60 minutes.

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

      Monitoring area details
      Area
      Texas (NWS states: TX)
      Hazards
      Tornado, severe thunderstorm, flash flood, river flood, areal flood, coastal flood and other 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 site’s operators, in its admin console. Nothing about a reader is stored. Watch another area

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

      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 areaSource status

      Area alertsTest123 · 0 alerts
      No active alerts reported in this monitoring area.
      Checked

      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.