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 2026-10-22 06:00:00 UTC, picture retrieved 2026-10-22 12:08:06.285 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 (161)

    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 161 listed sources. All surface stations and retained trends · All supported gauges and forecasts

    Selected details

    Close

    Surface station KDHT

    current · Observed 2026-10-22 16:11:00 UTC · wind 5 kt · temperature 22.8 °C.

    Station KDHT · -102.5487, 36.0252 (longitude, latitude).

    Source checked 2026-10-22 16:15:05.916Z · 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: 2; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-22 14:53:00 UTC.

    Observed sustained wind at KDHT (kt)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.104kt10-22 14:53Z10-22 16:11Z2026-10-22 14:53:00 UTC · 9 kt2026-10-22 16:11:00 UTC · 5 kt
    Observed sustained wind · 2 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Temperature, dew point and pressure trends
    Observed temperature at KDHT (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.23.817.9°C10-22 14:53Z10-22 16:11Z2026-10-22 14:53:00 UTC · 18.9 °C2026-10-22 16:11:00 UTC · 22.8 °C
    Observed temperature · 2 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Observed dew point at KDHT (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.14.311.8°C10-22 14:53Z10-22 16:11Z2026-10-22 14:53:00 UTC · 12.8 °C2026-10-22 16:11:00 UTC · 13.3 °C
    Observed dew point · 2 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Observed sea-level pressure at KDHT (mb)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.1021.91019.9mb10-22 14:53Z10-22 15:53Z2026-10-22 14:53:00 UTC · 1020.9 mb
    Observed sea-level pressure · 1 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Observed reports as a table (2)
    Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
    2026-10-22 14:53:00 UTC9 / Not reported24018.9 / 12.81020.910 or more
    2026-10-22 16:11:00 UTC5 / Not reportedVariable22.8 / 13.3Not reported8
    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 2026-10-22 14:53:00 UTC, captured 2026-10-22 15:00:09.930Z; source body SHA-256 43cbf29021fe89516d88b61b5c4d4ad88b1a83410480b7975468bd02eeb91672.
    • Observed 2026-10-22 16:11:00 UTC, captured 2026-10-22 16:15:09.684Z; source body SHA-256 27d3fc48787461c4f77a769f019ae4eb79ab7ca4fa0ffdbf07406adc809644ce.

    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
    • rain 72h · source revision · collected
    • rain 24h · source revision · collected
    • gauges observed · source revision · collected
    • gauge details · source revision · collected
    • office afd · source revision · collected
    • radar alerts · source revision · collected
    • radar alerts · source revision · collected
    • radar alerts · source revision · collected
    • radar alerts · source revision · collected
    • metars · source revision · collected
    • hrrr · source revision · collected

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

    Recording coverage and limits
    • warnings: retained from 2026-10-21T16:30:01.319Z through 2026-10-22T16:29:03.881Z
    • outlooks: retained from 2026-10-21T16:30:01.319Z through 2026-10-22T16:25:06.193Z
    • hydro: retained from 2026-10-21T16:30:01.319Z through 2026-10-22T16:25:06.639Z
    • analysis: retained from 2026-10-21T16:30:01.319Z through 2026-10-22T16:15:09.684Z
    • winter: retained from 2026-10-21T16:30:01.319Z through 2026-10-22T16:23:04.846Z

    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 Las Vegas, NV (VEF), 12Z. Its levels are in the table below.
    Observed Sounding at Las Vegas, NV (VEF), for (4 h 30 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)
    Las Vegas, NV (VEF): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
    PressureHeightTemperatureDew pointWind
    930 mb697 m21.410.4200° 3 kt
    925 mb742 m21.210.2175° 7 kt
    907 mb914 m20.410.0150° 15 kt
    875 mb1219 m18.09.4160° 24 kt
    850 mb1469 m16.09.0165° 25 kt
    814 mb1829 m12.87.0170° 29 kt
    786 mb2128 m10.25.3—
    774 mb2256 m9.64.6—
    757 mb2438 m8.12.7170° 28 kt
    744 mb2583 m7.01.0—
    731 mb2728 m6.4-1.6—
    703 mb3048 m5.0-4.8180° 37 kt
    700 mb3082 m4.8-5.2180° 37 kt
    677 mb3353 m2.7-9.3185° 35 kt
    667 mb3474 m1.8-11.2—
    655 mb3620 m1.6-11.4—
    628 mb3962 m-0.9-12.6180° 46 kt
    604 mb4267 m-3.4-9.3185° 47 kt
    583 mb4547 m-5.9-9.3—
    563 mb4820 m-7.7-12.7—
    543 mb5100 m-10.1-14.2—
    521 mb5418 m-13.1-16.8—
    500 mb5730 m-15.7-19.2175° 63 kt
    486 mb5943 m-17.5-20.1—
    476 mb6099 m-16.7-26.7—
    457 mb6401 m-18.8-33.5180° 68 kt
    440 mb6684 m-20.9-39.9—
    427 mb6904 m-22.5-38.5—
    408 mb7236 m-24.5-37.5—
    400 mb7380 m-25.5-38.5185° 83 kt
    387 mb7620 m-27.2-43.4185° 82 kt
    371 mb7925 m-29.6-46.3185° 82 kt
    358 mb8174 m-31.5-47.5—
    340 mb8534 m-32.1-54.5200° 83 kt
    330 mb8748 m-32.9-57.9—
    312 mb9144 m-35.9-59.1200° 84 kt
    300 mb9410 m-37.9-59.9195° 79 kt
    285 mb9754 m-40.0-61.1195° 80 kt
    273 mb10058 m-42.1-62.2190° 79 kt
    261 mb10363 m-43.7-64.3185° 82 kt
    250 mb10650 m-45.3-66.3190° 91 kt
    239 mb10949 m-45.5-68.5—
    227 mb11278 m-46.5-70.0195° 83 kt
    217 mb11587 m-48.3-70.3—
    202 mb12055 m-50.3-74.3—
    200 mb12120 m-50.5-74.5200° 80 kt
    189 mb12497 m-51.0-79.7205° 78 kt
    178 mb12880 m-52.3-82.3—
    165 mb13370 m-54.1-84.1—
    150 mb13980 m-56.1-86.1205° 49 kt
    135 mb14630 m-60.5-89.1205° 46 kt
    124 mb15167 m-64.1-92.1—
    111 mb15842 m-63.7-87.7—
    100 mb16480 m-66.1-92.1210° 51 kt
    Every station with a sounding (77)

    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

    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
    • Marginal
    • Marginal
    • Slight
    • Slight
    • Moderate

    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

    since , when this server began watching this area
    1. WPC excessive rainfall outlook issued

    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.