Data health

Storm Mode / Tracked area

Flash flooding: California

Wall mode

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

Current alert feed · checked

Warnings in area

3 of 3 alerts
  1. High Wind WarningSan Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; San Gorgonio Pass Near BanningNWS San Diego CA · until warning · alerts checked
  2. Red Flag WarningCentral Sierra; North Kings River; Sequoia Kings; Lake Isabella; Tehachapi Area; Fort TejonNWS Hanford CA · until warning · alerts checked
  3. Red Flag WarningWestern Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Santa Susana Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Los Angeles County San Gabriel ValleyNWS Los Angeles/Oxnard CA · until warning · 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 18:00:00 UTC, picture retrieved 2026-10-17 03:08:05.170 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

    Central Sierra; North Kings River; Sequoia Kings; Lake Isabella; Tehachapi Area; Fort Tejon

    Red Flag Warning

    Issued
    Updated
    Ends as issued
    Office
    NWS Hanford CA
    Please advise the appropriate officials or fire crews in the field of this Red Flag Warning. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.

    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

    Red Flag Warning issued October 16 at 5:34PM PDT until October 16 at 10:00PM PDT by NWS Hanford CA

    ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR CENTRAL SIERRA,
NORTH KINGS RIVER, SEQUOIA KINGS, LAKE ISABELLA, TEHACHAPI AREA,
AND FORT TEJON...

* AFFECTED AREA...Fire weather zone 592 Central Sierra. Fire
weather zone 593 North Kings River. Fire weather zone 594
Sequoia Kings. Fire weather zone 595 Lake Isabella. Elevations
from 4,000 feet and above.

* TIMING...Until 10 PM PDT this evening.

* WINDS...East winds 10 to 20 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...Minimum relative humidity between 15 to 25
percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
    Please advise the appropriate officials or fire crews in the
field of this Red Flag Warning.

A Red Flag Warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.
    Warning-message history (4)

    Data: NOAA/NWS · KHNX.FW.W.0004

    Recent source changes

    Recording coverage and limits
    • warnings: retained from 2026-10-16T04:05:32.135Z through 2026-10-17T04:05:05.093Z
    • outlooks: retained from 2026-10-16T04:05:32.135Z through 2026-10-17T04:05:04.584Z
    • hydro: retained from 2026-10-16T04:05:32.135Z through 2026-10-17T04:05:05.531Z
    • analysis: retained from 2026-10-16T04:05:32.135Z through 2026-10-17T04:00:07.920Z
    • winter: retained from 2026-10-16T04:05:32.135Z through 2026-10-17T03:53:02.974Z

    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; 2 gauges at action stage.

    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 04:04Z.

    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
    California (NWS states: CA)
    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.