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STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

Test123

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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), 00Z. Its levels are in the table below.
Observed Sounding at Great Falls, MT (TFX), for (10 h 14 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 (60)
Great Falls, MT (TFX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
891 mb1134 m15.62.6220° 16 kt
880 mb1239 m16.23.2—
866 mb1373 m15.61.9220° 31 kt
853 mb1500 m14.80.8225° 30 kt
850 mb1530 m14.60.6230° 29 kt
823 mb1801 m13.0-0.4250° 25 kt
806 mb1977 m12.0-1.0—
794 mb2102 m11.3-2.0270° 22 kt
771 mb2347 m10.0-4.0—
748 mb2597 m8.2-4.9290° 17 kt
715 mb2969 m5.7-6.6290° 17 kt
705 mb3084 m5.0-7.8285° 20 kt
700 mb3142 m4.6-8.4290° 21 kt
682 mb3353 m3.3-9.9300° 24 kt
660 mb3618 m1.2-12.6300° 24 kt
639 mb3876 m-0.9-13.4300° 23 kt
617 mb4155 m-3.3-13.3—
605 mb4309 m-4.2-14.8310° 25 kt
580 mb4641 m-6.1-18.1—
545 mb5118 m-10.0-18.9290° 21 kt
526 mb5391 m-12.3-19.4280° 23 kt
500 mb5780 m-15.5-20.0280° 23 kt
467 mb6290 m-18.3-23.8290° 28 kt
439 mb6751 m-20.7-27.7—
426 mb6970 m-22.6-29.0280° 23 kt
402 mb7394 m-26.4-31.4285° 23 kt
400 mb7430 m-26.7-31.6280° 23 kt
380 mb7799 m-30.0-33.4275° 21 kt
365 mb8084 m-32.5-35.9285° 22 kt
349 mb8400 m-35.2-38.9280° 25 kt
322 mb8959 m-39.7-43.0—
308 mb9261 m-42.3-45.8285° 43 kt
300 mb9440 m-43.9-47.4285° 44 kt
289 mb9688 m-46.1-49.6—
275 mb10014 m-49.1-52.3290° 40 kt
265 mb10255 m-51.0-54.4290° 45 kt
252 mb10579 m-53.5-56.7—
250 mb10630 m-53.9-57.0300° 49 kt
239 mb10918 m-56.3-59.2295° 52 kt
226 mb11273 m-57.3-60.1—
214 mb11617 m-59.5-62.4—
204 mb11916 m-60.5-63.2—
200 mb12040 m-59.9-63.1295° 80 kt
183 mb12592 m-61.2-66.4280° 74 kt
169 mb13087 m-59.0-65.9290° 92 kt
156 mb13586 m-60.7-68.7—
150 mb13830 m-60.7-69.7295° 67 kt
138 mb14346 m-61.5-72.8290° 51 kt
127 mb14854 m-64.3-76.7305° 46 kt
114 mb15515 m-67.9-81.7300° 34 kt
100 mb16310 m-65.1-81.1305° 51 kt
89 mb17010 m-65.1-83.1—
78 mb17815 m-67.7-87.5275° 14 kt
68 mb18649 m-63.7-87.4265° 23 kt
58 mb19629 m-64.8-89.8265° 15 kt
47 mb20919 m-63.7-90.7330° 11 kt
37 mb22384 m-63.0-91.0345° 13 kt
27 mb24316 m-63.5-91.5340° 6 kt
17 mb27162 m-61.6-90.6330° 6 kt
14 mb28545 m-61.5-78.5—
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 (153)

    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 153 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

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    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”.

    Alerts 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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    0AlertsTest123
    No alerts in Test123 ·