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STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

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Agency warning geometry · no observed imagery displayed

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.

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ⓘ 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

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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 (2 h 27 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 (50)
Great Falls, MT (TFX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
887 mb1134 m1.01.0070° 4 kt
864 mb1342 m-0.5-1.2—
850 mb1470 m-1.3-2.0235° 3 kt
840 mb1564 m-1.7-2.3—
813 mb1829 m2.60.8225° 12 kt
787 mb2093 m5.81.4—
772 mb2250 m5.00.3—
754 mb2438 m3.6-0.7235° 13 kt
726 mb2743 m1.4-2.2225° 15 kt
712 mb2906 m0.2-3.0—
700 mb3042 m-0.7-3.9215° 11 kt
673 mb3353 m-3.0-5.2200° 15 kt
650 mb3631 m-4.5-7.4—
623 mb3962 m-6.5-10.0200° 18 kt
611 mb4116 m-7.5-11.2—
599 mb4267 m-8.4-11.6215° 19 kt
576 mb4572 m-10.3-12.7215° 16 kt
554 mb4877 m-12.2-13.9190° 16 kt
532 mb5182 m-14.3-16.1200° 22 kt
511 mb5486 m-16.7-18.6205° 20 kt
500 mb5650 m-18.1-20.1210° 21 kt
490 mb5800 m-19.3-21.5—
471 mb6096 m-21.1-23.1205° 26 kt
451 mb6409 m-23.1-24.8—
433 mb6706 m-25.6-27.6180° 28 kt
415 mb7010 m-28.2-30.4190° 29 kt
400 mb7270 m-30.5-32.6190° 30 kt
388 mb7486 m-32.3-34.3—
364 mb7925 m-35.0-39.3210° 28 kt
349 mb8230 m-36.8-42.8210° 33 kt
334 mb8534 m-38.6-46.2205° 35 kt
320 mb8824 m-40.7-47.7—
305 mb9144 m-43.5-50.5205° 39 kt
300 mb9260 m-44.5-51.5200° 42 kt
275 mb9835 m-49.5-54.5—
253 mb10363 m-54.0-58.3210° 46 kt
250 mb10450 m-54.7-58.9210° 47 kt
230 mb10973 m-58.5-62.5210° 43 kt
219 mb11278 m-60.5-64.6205° 46 kt
209 mb11578 m-62.1-66.4—
200 mb11850 m-63.3-67.4215° 56 kt
189 mb12192 m-63.1-68.2220° 45 kt
174 mb12706 m-60.3-67.3—
163 mb13106 m-60.2-68.8205° 35 kt
150 mb13630 m-58.3-69.3220° 36 kt
135 mb14295 m-57.9-70.9—
122 mb14935 m-58.6-72.8225° 21 kt
111 mb15545 m-58.7-75.9205° 23 kt
100 mb16154 m-60.1-78.9230° 9 kt
100 mb16180 m-60.1-79.1210° 8 kt
Every station with a sounding (78)

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 (165)

    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 165 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”.

    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”.

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