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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 Sterling, VA (IAD), 00Z. Its levels are in the table below.
Observed Sounding at Sterling, VA (IAD), for (7 h 12 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 (54)
Sterling, VA (IAD): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1013 mb93 m18.83.8355° 10 kt
1000 mb201 m18.21.2345° 19 kt
988 mb305 m17.40.8340° 24 kt
967 mb487 m16.00.0—
953 mb610 m15.00.0330° 29 kt
925 mb862 m13.00.0320° 28 kt
914 mb962 m12.0-1.0—
888 mb1203 m9.8-3.2—
873 mb1344 m9.8-14.2—
854 mb1524 m9.7-21.3350° 29 kt
850 mb1566 m9.4-21.6000° 25 kt
823 mb1829 m7.3-21.4005° 24 kt
793 mb2134 m4.9-21.2350° 24 kt
764 mb2438 m2.5-21.0340° 28 kt
753 mb2555 m2.2-22.8—
743 mb2663 m2.2-18.8—
729 mb2817 m2.8-23.2—
711 mb3019 m4.2-28.8—
700 mb3146 m3.8-33.2320° 29 kt
685 mb3322 m3.4-43.6—
668 mb3525 m2.8-37.2—
657 mb3658 m2.1-41.1320° 38 kt
645 mb3808 m1.4-45.6—
609 mb4267 m-1.1-41.5310° 32 kt
597 mb4426 m-2.1-21.1—
582 mb4628 m-3.1-23.1—
564 mb4877 m-5.1-27.5305° 37 kt
537 mb5260 m-7.9-35.9—
500 mb5810 m-12.3-34.3295° 37 kt
481 mb6096 m-14.2-34.2295° 38 kt
469 mb6294 m-15.5-33.5—
442 mb6738 m-19.1-35.1—
430 mb6941 m-20.7-27.7—
400 mb7470 m-24.7-33.7280° 46 kt
378 mb7879 m-27.7-35.7—
363 mb8169 m-29.7-38.7—
345 mb8534 m-31.6-47.6290° 60 kt
316 mb9144 m-37.1-50.8290° 54 kt
305 mb9387 m-38.9-55.9—
300 mb9500 m-39.9-55.9295° 57 kt
284 mb9873 m-43.5-56.5—
250 mb10720 m-50.5-62.5285° 57 kt
237 mb11065 m-53.5-64.5—
214 mb11711 m-59.3-67.3—
201 mb12099 m-62.5-72.5—
200 mb12130 m-62.5-72.5290° 74 kt
179 mb12802 m-62.4-74.3300° 83 kt
154 mb13747 m-63.3-80.3285° 84 kt
150 mb13910 m-63.9-80.9285° 78 kt
138 mb14420 m-62.9-82.9—
127 mb14935 m-63.3-83.6290° 73 kt
115 mb15545 m-63.8-84.4285° 58 kt
104 mb16154 m-64.3-85.2275° 63 kt
100 mb16390 m-64.5-85.5285° 48 kt
Every station with a sounding (79)

SPC observed soundings checked · Data: NOAA/SPC

Radar-derived cells (8) · current

Collector checked ; feed generated . Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.

  1. HGX / A0 · scan 2026-10-31T07:03:11Z · current
  2. HGX / S1 · scan 2026-10-31T07:03:11Z · current
  3. IAH / O0 · scan 2026-10-31T07:03:53Z · current
  4. POE / S1 · scan 2026-10-31T07:05:28Z · current
  5. SHV / A6 · scan 2026-10-31T07:03:11Z · current
  6. SHV / S5 · scan 2026-10-31T07:03:11Z · current
  7. SHV / W5 · scan 2026-10-31T07:03:11Z · current
  8. SHV / Y5 · scan 2026-10-31T07:03:11Z · current
Station and river observations (163)

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 163 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”.

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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