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Storm Mode · Severe weather event

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  • High Wind Warning 1

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.

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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), 12Z. Its levels are in the table below.
Observed Sounding at Sterling, VA (IAD), for (8 h 8 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 (61)
Sterling, VA (IAD): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1023 mb93 m9.05.9325° 3 kt
1010 mb197 m11.05.0—
1000 mb279 m13.00.0090° 7 kt
961 mb610 m11.1-1.9095° 8 kt
947 mb735 m10.0-2.0—
927 mb914 m9.1-3.8075° 6 kt
925 mb930 m9.0-4.0080° 7 kt
908 mb1083 m8.6-10.4—
897 mb1184 m7.6-6.4—
887 mb1276 m7.4-6.6—
850 mb1625 m5.6-10.4300° 2 kt
834 mb1780 m5.4-14.6—
821 mb1909 m4.8-10.2—
811 mb2008 m4.6-11.4—
801 mb2109 m4.4-5.6—
788 mb2243 m3.8-3.2—
769 mb2438 m3.0-0.6330° 17 kt
741 mb2743 m1.1-2.1335° 16 kt
713 mb3048 m-0.6-2.8335° 15 kt
700 mb3197 m-0.7-3.0315° 15 kt
685 mb3370 m-1.7-3.2—
668 mb3569 m-2.3-4.4—
647 mb3822 m-3.3-5.9—
637 mb3945 m-4.1-12.1—
611 mb4267 m-6.1-8.5310° 17 kt
587 mb4584 m-8.9-9.1—
569 mb4825 m-9.5-11.1—
545 mb5156 m-11.9-13.2—
522 mb5485 m-13.5-15.8—
503 mb5765 m-15.9-16.1—
500 mb5810 m-16.1-16.5320° 10 kt
481 mb6096 m-17.7-18.9305° 12 kt
467 mb6324 m-18.9-20.8—
455 mb6519 m-19.3-23.2—
442 mb6735 m-20.9-24.7—
429 mb6956 m-22.3-27.3—
409 mb7315 m-24.9-26.1275° 10 kt
400 mb7470 m-24.7-27.5285° 28 kt
385 mb7747 m-26.1-29.4—
370 mb8032 m-27.5-33.5—
360 mb8228 m-28.9-32.6—
335 mb8736 m-33.5-35.2—
322 mb9012 m-34.7-39.7—
312 mb9231 m-36.7-41.7—
302 mb9455 m-38.9-43.6—
300 mb9500 m-39.3-42.9280° 41 kt
282 mb9920 m-42.9-47.1—
265 mb10336 m-46.3-55.3—
250 mb10720 m-49.7-58.7275° 51 kt
230 mb11260 m-54.5-60.5—
218 mb11601 m-57.7-63.7—
200 mb12140 m-62.3-67.2270° 57 kt
189 mb12497 m-65.3-69.7270° 57 kt
178 mb12848 m-67.9-72.0—
167 mb13229 m-66.7-73.7—
155 mb13681 m-65.1-80.1—
150 mb13880 m-64.9-80.9280° 44 kt
139 mb14326 m-65.0-82.4280° 43 kt
120 mb15240 m-64.1-84.0275° 40 kt
109 mb15850 m-64.2-84.9265° 44 kt
100 mb16360 m-64.7-85.7300° 30 kt
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 (147)

    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 147 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”.

    Published alerts in this area 1

    1. High Wind Warning11 not yet in effect · until 3 Nov 03:00Z

    Every alert is in the alert list. Checked .

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    1AlertsTest123
    High Wind Warningstarts UpdateSPC Day 1 outlook issuedUpdateWPC excessive rainfall outlook issued