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Storm Mode · Severe weather event

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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 Chanhassen, MN (MPX), 12Z. Its levels are in the table below.
Observed Sounding at Chanhassen, MN (MPX), for (1 h 23 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)
Chanhassen, MN (MPX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
990 mb287 m8.28.2calm
975 mb414 m7.86.1—
956 mb578 m8.46.2—
925 mb853 m9.48.8190° 22 kt
896 mb1117 m9.08.8—
885 mb1219 m10.09.9160° 8 kt
853 mb1524 m8.78.3185° 4 kt
850 mb1555 m8.68.1230° 5 kt
832 mb1733 m8.68.6—
800 mb2056 m6.04.8—
763 mb2438 m4.42.6240° 20 kt
735 mb2743 m3.10.9235° 24 kt
724 mb2871 m2.60.2—
708 mb3048 m1.3-0.7240° 22 kt
700 mb3143 m0.6-1.1240° 22 kt
682 mb3353 m-0.9-2.4235° 20 kt
667 mb3530 m-1.7-3.2—
656 mb3658 m-2.8-4.1260° 11 kt
632 mb3962 m-4.7-6.4265° 13 kt
615 mb4172 m-5.1-7.6—
602 mb4339 m-6.1-8.9—
584 mb4572 m-7.9-10.3260° 19 kt
562 mb4877 m-9.2-19.4265° 20 kt
550 mb5041 m-10.1-21.1—
538 mb5211 m-11.1-17.1—
527 mb5370 m-12.1-19.1—
506 mb5680 m-14.7-19.7—
500 mb5770 m-15.5-20.5280° 21 kt
484 mb6014 m-16.9-21.9—
465 mb6312 m-19.3-22.6—
441 mb6706 m-22.1-27.3280° 27 kt
423 mb7010 m-24.3-31.3275° 31 kt
405 mb7315 m-26.8-34.2275° 30 kt
400 mb7410 m-27.7-34.7285° 33 kt
388 mb7620 m-29.3-38.1280° 32 kt
372 mb7925 m-31.0-43.9285° 41 kt
356 mb8230 m-33.0-47.4295° 41 kt
341 mb8534 m-35.3-48.5280° 46 kt
324 mb8896 m-38.5-51.5—
312 mb9144 m-40.8-52.4270° 53 kt
300 mb9420 m-43.3-53.3270° 53 kt
284 mb9786 m-46.3-53.3—
272 mb10058 m-48.5-54.7280° 58 kt
260 mb10363 m-51.0-56.2275° 61 kt
250 mb10620 m-53.1-57.5275° 65 kt
237 mb10973 m-56.2-60.9275° 65 kt
225 mb11278 m-58.5-63.5275° 66 kt
215 mb11582 m-60.7-65.7270° 69 kt
204 mb11887 m-62.5-67.5275° 75 kt
200 mb12020 m-63.3-68.2260° 77 kt
189 mb12366 m-65.0-69.7255° 88 kt
177 mb12767 m-62.9-68.9—
162 mb13309 m-65.3-72.3—
152 mb13716 m-62.7-70.6265° 58 kt
150 mb13780 m-62.3-70.3265° 58 kt
137 mb14326 m-62.0-72.6270° 49 kt
124 mb14935 m-63.5-76.1275° 42 kt
113 mb15545 m-64.3-78.7265° 48 kt
102 mb16154 m-63.9-79.6290° 53 kt
100 mb16270 m-64.1-80.1290° 48 kt
Every station with a sounding (79)

SPC observed soundings checked · Data: NOAA/SPC

Radar-derived cells (3) · current

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

  1. POE / W0 · scan 2026-10-31T13:15:31Z · current
  2. SHV / A8 · scan 2026-10-31T13:14:26Z · current
  3. SHV / Q6 · scan 2026-10-31T13:14:26Z · current
Station and river observations (168)

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 168 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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