Data health

Storm Mode · Severe weather event

Test123

Weather Operations Mode
STORM MODEWeather tracking workspace

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Alerts (0)

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No active alerts reported by the current feed in this monitoring area.

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Places saved on this device appear here with scripting enabled.

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Layers

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.

Agency warning geometry · no observed imagery displayed
North ↑

Interactive imagery loads separately. Missing radar does not remove warnings or imply clear weather.

Outlines: NOAA/NWS · Radar cells: IEM/NEXRAD. Outlines are warned areas, not storm paths.

Lightning activity — GOES GLM

Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.

Cached lightning observations have not loaded. An empty map is not zero lightning.

Cached lightning source details and text readings

Snow analysis — NOHRSC

Source-rendered snow depth and snow water equivalent for the lower 48. History changes this snow picture only; warnings and radar keep their own clocks.

Stored snow depth · footprint valid 2026-10-28 06:00:00 UTC, picture retrieved 2026-10-28 12:23:05.528 UTC.

No NOHRSC picture displayed on the interactive map.

  • 0 - 0.39 in
  • 0.39 - 2.0 in
  • 2.0 - 3.9 in
  • 3.9 - 9.8 in
  • 9.8 - 20 in
  • 20 - 39 in
  • 39 - 59 in
  • 59 - 98 in
  • 98 - 197 in
  • 197 - 295 in
  • 295 - 394 in
  • 394 - 787 in
NOHRSC snow analysis for the lower 48; see the adjacent source legend and time qualification
NOAA/NWS/NOHRSC’s original picture and legend. No station or address value is inferred.

NOHRSC footprint times are metadata; pixel analysis time is not independently verified. Snow-depth pixels have previously differed from the footprint time. This is modeled/assimilated snow analysis, not a measurement at a place. Unshaded and no-data areas do not establish zero snow.

Snow pictures, retained history and source provenance

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)
Radar-derived cells (2) · current

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

  1. CRP / Y2 · scan 2026-10-28T15:47:32Z · current
  2. IAH / D0 · scan 2026-10-28T15:45:52Z · current
Station and river observations (165)

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 165 listed sources. All surface stations and retained trends · All supported gauges and forecasts

Details

Area brief

Radar CRP · cell Y2

Radar-local algorithm observation · scan within budget

Scan
Segment first observed
Retained observations
7 scans · to
Source motion
8 kt toward 335° true (from 155°)
azimuth (source field)
56
range (source field)
140
TVS algorithm flag
NONE
Mesocyclone algorithm flag
NONE
posh (source field)
0
poh (source field)
0
Algorithm hail estimate (in)
0
vil (source field)
3
Maximum reflectivity (dBZ)
44
Height of maximum reflectivity (thousands of ft)
6.7
Echo top (thousands of ft)
8.1
Motion from (degrees true)
155
Source speed (kt)
8

Hail, rotation and TVS fields are algorithm estimates/signatures, not official warnings or confirmation of a tornado. The observed line joins credible scans from this radar only; it is not a future path or arrival forecast.

Following is off until chosen. Dragging the map pauses following.

Data: IEM / NEXRAD Storm Attribute Table. Other radars’ observations remain separate.

Alert changes

Source collection activity (15)
  • radar alerts · source revision · collected
  • wssi day2 · source recovered · collected
  • pwpf day1 snow 12in · source recovered · collected
  • wssi days1 3 · source recovered · collected
  • pwpf day3 ice quarter inch · source recovered · collected
  • pwpf day3 snow 12in · source recovered · collected
  • pwpf day2 ice quarter inch · source recovered · collected
  • wssi day3 · source recovered · collected
  • radar alerts · source revision · collected
  • gauge details · source revision · collected
  • gauges observed · source revision · collected
  • metars · source revision · collected

A new collection or source revision does not establish a consequential weather change.

Recording coverage and limits
  • warnings: retained from 2026-10-27T15:54:03.482Z through 2026-10-28T15:54:03.428Z
  • outlooks: retained from 2026-10-27T15:54:03.482Z through 2026-10-28T15:50:06.989Z
  • hydro: retained from 2026-10-27T15:54:03.482Z through 2026-10-28T15:45:09.689Z
  • analysis: retained from 2026-10-27T15:54:03.482Z through 2026-10-28T15:45:07.934Z
  • winter: retained from 2026-10-27T15:54:03.482Z through 2026-10-28T15:53:03.816Z

Source changes and imagery have separate recording coverage. Open Replay for retained weather frames.

Checks every minute; each layer keeps its own time.

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

What changed, last 60 minutes

  1. WPC excessive rainfall outlook issued
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”.

Sources

Choose another storm or areaSource status

0AlertsTest123
No alerts in Test123 ·

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.