Data health
STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

Test123

No alerts

Checked

Weather Operations Mode
More
Choose another storm or areaClassic view
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.

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 Bismarck, ND (BIS), 00Z. Its levels are in the table below.
Observed Sounding at Bismarck, ND (BIS), for (12 h 7 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 (58)
Bismarck, ND (BIS): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
958 mb506 m12.610.0095° 9 kt
946 mb610 m11.59.7070° 7 kt
925 mb803 m9.49.0110° 14 kt
913 mb914 m9.59.3130° 13 kt
902 mb1012 m9.69.5—
880 mb1219 m9.18.8170° 19 kt
869 mb1322 m10.010.0—
850 mb1506 m9.89.0195° 22 kt
832 mb1684 m8.05.1—
818 mb1824 m8.45.9—
788 mb2134 m7.32.9210° 24 kt
759 mb2438 m5.72.0215° 20 kt
737 mb2681 m4.40.3—
711 mb2973 m2.60.5—
700 mb3099 m1.6-1.1215° 13 kt
685 mb3274 m0.8-6.2—
653 mb3658 m-2.0-7.0205° 9 kt
638 mb3841 m-2.9-10.9—
626 mb3991 m-3.3-16.3—
604 mb4267 m-4.8-14.0190° 12 kt
593 mb4418 m-5.7-12.7—
581 mb4572 m-6.9-13.5185° 9 kt
569 mb4740 m-8.3-14.3—
559 mb4877 m-9.4-14.9195° 13 kt
537 mb5182 m-11.8-16.2195° 14 kt
514 mb5521 m-13.9-20.9—
500 mb5730 m-15.5-21.5220° 21 kt
476 mb6096 m-18.4-21.3225° 19 kt
463 mb6304 m-20.1-22.3—
450 mb6514 m-21.1-25.5—
438 mb6706 m-22.5-26.5230° 19 kt
426 mb6915 m-24.1-27.6—
403 mb7315 m-26.7-29.1235° 19 kt
400 mb7370 m-27.1-29.3220° 20 kt
386 mb7620 m-28.5-31.1215° 19 kt
371 mb7909 m-30.9-32.9—
358 mb8161 m-32.7-34.5—
339 mb8534 m-35.6-39.1215° 20 kt
327 mb8792 m-37.5-41.3—
311 mb9144 m-40.6-45.7230° 26 kt
300 mb9380 m-42.7-48.7230° 27 kt
285 mb9724 m-45.7-52.7—
271 mb10056 m-48.9-54.9—
259 mb10363 m-51.6-56.5230° 27 kt
250 mb10580 m-53.5-57.7235° 28 kt
235 mb10973 m-57.0-60.5230° 30 kt
224 mb11278 m-59.6-62.7235° 34 kt
209 mb11709 m-63.1-66.0—
200 mb11980 m-64.1-67.3230° 41 kt
190 mb12292 m-65.3-68.3240° 40 kt
175 mb12802 m-63.1-68.3250° 36 kt
162 mb13267 m-62.7-69.7—
152 mb13659 m-62.1-71.1—
150 mb13740 m-62.1-71.1240° 29 kt
136 mb14326 m-60.9-72.8260° 40 kt
124 mb14935 m-60.6-74.4250° 32 kt
110 mb15669 m-61.3-77.3—
100 mb16260 m-61.9-79.9250° 27 kt
Every station with a sounding (77)

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”.

    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”.

    My places

    Places saved on this device appear here with scripting enabled.

    Find or save a place
    0AlertsTest123
    No alerts in Test123 ·