Data health

Storm Mode / Tracked area

Flash flooding: Michigan

Wall mode

3 warnings total · 0 tornado warnings · 9 alerts including watches and advisories

Current alert feed · checked

Warnings in area

9 of 9 alerts
  1. Freeze WarningMidland; Bay; Saginaw; Tuscola; Shiawassee; Genesee; LapeerNWS Detroit/Pontiac MI · until warning · alerts checked
  2. Freeze WarningOceana; Newaygo; Mecosta; Isabella; Muskegon; Montcalm; Gratiot; Ottawa; Kent; Ionia; ClintonNWS Grand Rapids MI · until warning · alerts checked
  3. Freeze WarningMenominee; Marathon; Shawano; Wood; Portage; Waupaca; Outagamie; Brown; Kewaunee; Waushara; Winnebago; Calumet; Manitowoc; Southern Marinette County; Southern Oconto CountyNWS Green Bay WI · until warning · alerts checked
  4. Freeze WatchLagrange; Steuben; Noble; De Kalb; Whitley; Northern Kosciusko; Southern KosciuskoNWS Northern Indiana · until watch · radar-alerts checked
  5. Freeze WatchAllen; Miami; Wabash; Huntington; Wells; Adams; Grant; Blackford; Jay; Williams; Fulton; Defiance; Henry; Paulding; Putnam; Van Wert; AllenNWS Northern Indiana · until watch · radar-alerts checked
  6. Frost AdvisoryHuron; Sanilac; St. Clair; Livingston; Oakland; Macomb; Washtenaw; Wayne; Lenawee; MonroeNWS Detroit/Pontiac MI · until advisory · radar-alerts checked
  7. Frost AdvisoryAllegan; Barry; Eaton; Ingham; Van Buren; Kalamazoo; Calhoun; JacksonNWS Grand Rapids MI · until advisory · radar-alerts checked
  8. Frost AdvisoryElkhart; Marshall; Eastern St. Joseph; Western St. Joseph; Cass; St. Joseph; Branch; HillsdaleNWS Northern Indiana · until advisory · radar-alerts checked
  9. Frost AdvisoryLagrange; Steuben; Noble; De Kalb; Whitley; Northern Kosciusko; Southern KosciuskoNWS Northern Indiana · until advisory · radar-alerts checked

Watched places

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

Alert outlines: NOAA/NWS; cell points/observed segments: IEM/NEXRAD. A warning polygon is not a tornado footprint.

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 2026-10-16 21:00:00 UTC, picture retrieved 2026-10-17 05:23:07.248 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

Radar-derived cells (0) · unavailable

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

    Selected details

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    Current NWS warning

    Midland; Bay; Saginaw; Tuscola; Shiawassee; Genesee; Lapeer

    Freeze Warning

    Issued
    Updated
    Ends as issued
    Office
    NWS Detroit/Pontiac MI
    Take steps now to protect tender plants from the cold.

    Official NWS warning ↗

    The polygon is a warned area, not a tornado footprint. NWS detection tags are independent of radar algorithms and reports.

    Relevant watched places

    Save named places to check their point against every supported warning.
    Full official message

    Freeze Warning issued October 16 at 1:59PM EDT until October 17 at 8:00AM EDT by NWS Detroit/Pontiac MI

    * WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Bay, Genesee, Lapeer, Midland, Saginaw, Shiawassee, and
Tuscola Counties.

* WHEN...From 3 AM to 8 AM EDT Saturday.

* IMPACTS...Frost and freeze conditions could kill crops and other
sensitive vegetation
    Take steps now to protect tender plants from the cold.
    Warning-message history (1)

    Data: NOAA/NWS · KDTX.FZ.W.0004

    Recent source changes

    Recording coverage and limits
    • warnings: retained from 2026-10-16T05:34:29.186Z through 2026-10-17T05:34:03.308Z
    • outlooks: retained from 2026-10-16T05:34:29.186Z through 2026-10-17T05:30:07.999Z
    • hydro: retained from 2026-10-16T05:34:29.186Z through 2026-10-17T05:25:05.126Z
    • analysis: retained from 2026-10-16T05:34:29.186Z through 2026-10-17T05:30:06.960Z
    • winter: retained from 2026-10-16T05:34:29.186Z through 2026-10-17T05:23:03.257Z

    Source-message history is not recorded imagery replay. Recorded radar/satellite imagery is not available in this view.

    Auto-updating checks this site’s cache every minute; each source keeps its own clock.

    Spotlight: Flash-flood risk, Day 1

    1 of 4

    Flash-flood risk, Day 1

    • Marginal

    WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.

    River gauges in flood

    No river, coastal or lake gauge in this area is in flood, observed or forecast.

    NWS’s gauges at flood stage or above in the area, worst first, each with its forecast hydrograph on Rain & rivers. Data: NOAA/NWPS.

    Rain expected and rain that fell

    WPC’s rain forecast and MRMS’s radar estimate of the rain that fell, on the Briefing’s map for the area.

    Open Rain & rivers

    Data: NOAA/WPC, NOAA/NSSL MRMS.

    Radar

    NOAA’s radar for the area, loaded by your browser as on the Radar page.

    Open the radar

    Live tiles; the radar keeps no last-good copy.

    What changed, last 60 minutes

    since , when this server began watching this area

    Nothing has changed since 05:31Z.

    The products’ own words and times, and what is no longer in force since the last read. Never written by AI.

    Monitoring area, legacy alert summary and selection rules
    Area
    Michigan (NWS states: MI)
    Hazards
    Flash flood 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 address: anyone can make one, and nothing is stored. Change the area or hazards

    An area you chose, not a storm’s footprint: everything here is in force in this area, never “from this storm”.

    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 areaChange monitoring areaSource status

    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.