Data health
STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

Test123

No alerts in force

Checked

Weather Operations Mode
More
Choose another storm or areaClassic view
Weather Operations Mode
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 Rapid City, SD (UNR), 00Z. Its levels are in the table below.
Observed Sounding at Rapid City, SD (UNR), for (10 h 17 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 (56)
Rapid City, SD (UNR): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
903 mb1029 m15.43.4000° 10 kt
883 mb1219 m14.13.2355° 20 kt
850 mb1536 m11.82.8330° 17 kt
820 mb1829 m9.31.5320° 19 kt
790 mb2134 m6.70.2300° 19 kt
762 mb2438 m4.0-1.1295° 21 kt
742 mb2654 m2.2-2.0—
726 mb2830 m1.6-3.1—
711 mb2998 m1.0-5.0—
700 mb3123 m0.0-6.0320° 30 kt
684 mb3308 m-1.1-7.1—
655 mb3658 m-2.5-11.2320° 33 kt
626 mb4010 m-5.1-13.1—
606 mb4267 m-6.5-16.6325° 34 kt
582 mb4572 m-8.4-16.5330° 32 kt
560 mb4877 m-10.6-14.1335° 39 kt
530 mb5298 m-12.9-17.5—
518 mb5472 m-13.7-17.8—
500 mb5740 m-15.3-19.8325° 45 kt
477 mb6096 m-18.0-22.9325° 49 kt
458 mb6401 m-20.6-25.1325° 50 kt
439 mb6706 m-22.7-28.2325° 49 kt
424 mb6960 m-24.7-29.7—
404 mb7315 m-27.4-35.8335° 46 kt
400 mb7380 m-27.9-36.9335° 46 kt
387 mb7620 m-29.9-41.2340° 49 kt
370 mb7925 m-32.4-46.6335° 47 kt
355 mb8230 m-35.3-49.8340° 49 kt
339 mb8534 m-38.2-51.8340° 47 kt
310 mb9144 m-44.1-55.7340° 55 kt
300 mb9370 m-46.1-57.1340° 55 kt
283 mb9754 m-49.7-59.3345° 55 kt
270 mb10058 m-52.4-60.9340° 59 kt
258 mb10363 m-54.8-62.4345° 65 kt
250 mb10560 m-56.3-63.3340° 73 kt
234 mb10973 m-59.5-66.5340° 72 kt
220 mb11357 m-61.5-68.5—
203 mb11856 m-57.9-66.9—
200 mb11950 m-56.3-65.3330° 99 kt
184 mb12477 m-57.0-67.6340° 104 kt
171 mb12939 m-57.3-69.3—
151 mb13716 m-59.8-73.7330° 68 kt
150 mb13760 m-59.9-73.9330° 72 kt
134 mb14463 m-58.3-75.3—
122 mb15048 m-61.9-79.9—
110 mb15689 m-61.7-81.7—
100 mb16280 m-62.5-83.5330° 46 kt
89 mb16994 m-65.8-88.5330° 39 kt
79 mb17725 m-64.1-89.6315° 41 kt
69 mb18558 m-62.5-90.5305° 21 kt
59 mb19513 m-66.4-93.4340° 21 kt
49 mb20644 m-63.9-91.9005° 26 kt
39 mb22042 m-63.9-91.9295° 18 kt
28 mb24075 m-63.2-91.2000° 7 kt
18 mb26814 m-61.4-90.0290° 14 kt
12 mb29336 m-59.9-75.9—
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

    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”.

    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”.

    My places

    Places saved on this device appear here with scripting enabled.

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