STORM MODEWeather tracking workspace

Storm Mode · Severe weather event

Test123

4 alerts

Checked

Agency warning geometry · no observed imagery displayed

Map

  • High Wind Warning 1
  • Tornado Watch 1
  • Mesoscale Discussion 2

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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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), 12Z. Its levels are in the table below.
Observed Sounding at Sterling, VA (IAD), for (8 h 30 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)
Sterling, VA (IAD): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1020 mb93 m8.21.2calm
1008 mb189 m11.43.4—
1000 mb254 m12.01.0200° 10 kt
981 mb415 m12.03.0—
958 mb610 m12.61.6200° 11 kt
925 mb908 m12.0-7.0225° 11 kt
912 mb1026 m11.6-11.4—
896 mb1174 m11.4-2.6—
879 mb1333 m11.0-1.0—
850 mb1612 m9.0-1.0240° 5 kt
828 mb1829 m7.3-2.7240° 4 kt
817 mb1939 m6.60.6—
798 mb2131 m5.4-3.6—
787 mb2245 m4.6-3.4—
769 mb2433 m3.21.2—
740 mb2744 m1.2-0.4060° 6 kt
714 mb3031 m-1.1-1.1—
700 mb3189 m-1.5-2.2150° 3 kt
686 mb3350 m-1.9-3.6—
660 mb3658 m-3.3-6.3180° 7 kt
633 mb3986 m-5.5-7.8—
613 mb4237 m-6.5-8.5—
601 mb4392 m-6.7-9.6—
565 mb4877 m-8.6-10.7275° 12 kt
547 mb5123 m-9.9-12.2—
520 mb5512 m-12.7-13.4—
500 mb5810 m-14.3-15.5265° 10 kt
481 mb6096 m-15.9-17.9265° 13 kt
467 mb6326 m-17.1-19.3—
453 mb6554 m-18.9-20.0—
400 mb7470 m-25.1-27.7265° 28 kt
380 mb7841 m-28.1-31.1—
362 mb8187 m-30.7-35.7—
336 mb8712 m-35.1-40.1—
318 mb9093 m-38.7-42.9—
300 mb9490 m-42.3-45.8260° 39 kt
289 mb9741 m-44.5-50.5—
278 mb9999 m-47.1-52.1—
259 mb10462 m-51.3-56.3—
250 mb10690 m-53.3-57.9265° 35 kt
228 mb11278 m-58.0-63.0270° 31 kt
217 mb11591 m-58.7-69.7—
200 mb12100 m-62.9-68.9260° 29 kt
187 mb12497 m-64.3-72.6250° 27 kt
174 mb12952 m-65.3-77.3—
162 mb13387 m-64.5-80.5—
150 mb13860 m-62.3-82.3270° 25 kt
139 mb14326 m-62.0-83.0260° 32 kt
120 mb15240 m-63.5-84.5275° 35 kt
109 mb15850 m-64.5-85.5295° 37 kt
100 mb16350 m-64.5-86.5270° 33 kt
86 mb17270 m-64.0-87.5310° 27 kt
74 mb18190 m-63.6-88.6315° 23 kt
63 mb19172 m-65.0-89.3315° 29 kt
51 mb20459 m-64.3-89.1295° 30 kt
40 mb21949 m-64.4-90.6310° 19 kt
30 mb23720 m-62.5-90.5290° 16 kt
20 mb26240 m-57.1-89.1265° 58 kt
10 mb30750 m-40.3-81.3260° 123 kt
7 mb33092 m-38.7-80.7250° 136 kt
Every station with a sounding (76)

SPC observed soundings checked · Data: NOAA/SPC

Radar-derived cells (12) · current

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

  1. AMA / O0 · scan 2026-11-02T20:24:37Z · current
  2. AMA / R0 · scan 2026-11-02T20:24:37Z · current
  3. DYX / E0 · scan 2026-11-02T20:21:38Z · current
  4. FDR / Y1 · scan 2026-11-02T20:22:40Z · current
  5. LBB / G0 · scan 2026-11-02T20:23:19Z · current
  6. LBB / H0 · scan 2026-11-02T20:23:19Z · current
  7. LBB / J0 · scan 2026-11-02T20:23:19Z · current
  8. SHV / A0 · scan 2026-11-02T20:22:17Z · current
  9. TLX / J3 · scan 2026-11-02T20:20:22Z · stale
  10. TLX / K3 · scan 2026-11-02T20:20:22Z · stale
  11. VNX / G4 · scan 2026-11-02T20:23:11Z · current
  12. VNX / R3 · scan 2026-11-02T20:23:11Z · current
Station and river observations (162)

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 162 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 4

  1. High Wind Warning1until 3 Nov 03:00Z
  2. Tornado Watch1until 3 Nov 04:00Z
  3. Mesoscale Discussion21 new · until 22:00Z

Every alert is in the alert list. Checked .

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4AlertsTest123 · alerts checked 20:30Z