Data health
STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

Test123

1 alert · 1 upcoming

Checked

Weather Operations Mode
More
Choose another storm or areaClassic view
Agency warning geometry · no observed imagery displayed

Map

  • High Wind Warning 1

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.

North ↑
ⓘ About this map

Outlines: NOAA/NWS · Radar cells: IEM/NEXRAD. Outlines are warned areas, not storm paths.

Interactive imagery loads separately. Missing radar does not remove warnings or imply clear weather.

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)

Analysis and guidance

Choose product

Current weather

ReportsAnalysis and guidanceRadar

Observations

Coastal observationsRadar-derived cellsStations and river gauges

Severe storms

SPC Day 1 outlookWatchesMesoscale discussions

Rain and flooding

Flash-flood risk, Day 1River gauges in floodRain expected and rain that fell

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 Great Falls, MT (TFX), 12Z. Its levels are in the table below.
Observed Sounding at Great Falls, MT (TFX), for (6 h 53 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 (36)
Great Falls, MT (TFX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
884 mb1134 m1.41.4020° 4 kt
871 mb1254 m4.24.2—
850 mb1453 m4.43.5070° 6 kt
831 mb1637 m5.21.3—
812 mb1829 m4.22.1090° 8 kt
793 mb2019 m3.81.1—
782 mb2134 m3.41.3095° 7 kt
756 mb2406 m2.00.5—
737 mb2611 m1.4-0.8—
725 mb2743 m0.7-2.0200° 11 kt
700 mb3024 m-0.9-4.5190° 11 kt
676 mb3302 m-2.7-5.4—
646 mb3658 m-4.7-8.2215° 11 kt
630 mb3857 m-6.3-9.6—
618 mb4007 m-7.1-10.7—
598 mb4267 m-9.4-11.9200° 11 kt
579 mb4510 m-11.5-13.0—
562 mb4738 m-12.7-14.2—
552 mb4877 m-13.6-15.3200° 17 kt
538 mb5070 m-15.1-16.7—
528 mb5211 m-16.1-17.8—
517 mb5370 m-16.3-17.8—
500 mb5620 m-18.1-20.0190° 19 kt
489 mb5791 m-19.2-20.8190° 21 kt
478 mb5955 m-20.3-21.6—
457 mb6287 m-22.9-24.7—
431 mb6706 m-26.1-28.1190° 29 kt
414 mb7010 m-28.5-30.5190° 30 kt
400 mb7250 m-30.3-32.4200° 31 kt
379 mb7620 m-33.2-35.4205° 37 kt
363 mb7925 m-35.6-37.8205° 38 kt
304 mb9144 m-45.2-47.7225° 68 kt
300 mb9230 m-45.9-48.4225° 76 kt
277 mb9754 m-49.8-52.3230° 90 kt
255 mb10281 m-53.7-56.2225° 108 kt
231 mb10920 m-58.5-60.9230° 108 kt
Every station with a sounding (76)

SPC observed soundings checked · Data: NOAA/SPC

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 (146)

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

    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

    Spotlight

    8 products · choose one
    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”.

    Published alerts in this area 1

    1. High Wind Warning11 not yet in effect · until 3 Nov 03:00Z

    Every alert is in the alert list. Checked .

    My places

    Places saved on this device appear here with scripting enabled.

    Find or save a place
    1AlertsTest123
    High Wind Warningstarts