Alert archive / California / Flash Flood Warnings in 2025

Flash Flood Warning 22, NWS Hanford, CA

December 24, 2025Fresno County, Madera County, California

NWS Hanford, CA issued this flash flood warning at Dec 24, 2025, 6:42 AM PST for Fresno County, Madera County, California. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 24, 2025, 6:42 AM PST (14:42 UTC)
Expired: Dec 24, 2025, 10:30 AM PST
In force: 4 hr
Issued by: NWS Hanford, CA
Area: Storm-based polygon
Flood severity: None

Counties Fresno County, CA, Madera County, CA

The radar

The San Joaquin Valley radar (KHNX), 75 km from the middle of the area, began a volume at 14:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Oakland, CA (KOAK), launched 12:00Z, 2.7 hours before the alert went out and 235 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 44 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 626 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before this flash flood warning went out at Dec 24, 12:52 AM PST, 5 hours 50 minutes earlier.

Area forecast discussion, Dec 24, 12:52 AM PST, 5 hours 50 minutes before

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In the hours before

Local storm report, Dec 24, 6:24 AM PST, 18 minutes before

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Local storm report, Dec 24, 6:26 AM PST, 16 minutes before

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Local storm report, Dec 24, 6:28 AM PST, 14 minutes before

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Local storm report, Dec 24, 6:30 AM PST, 12 minutes before

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Local storm report, Dec 24, 6:36 AM PST, 6 minutes before

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Local storm report, Dec 24, 6:37 AM PST, 5 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Hanford, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 24, 5:02 AM PST	Areal Flood Advisory	HNX	Kern	8 hr
Dec 24, 5:53 AM PST	Areal Flood Advisory	HNX	Fresno, Madera	29 min
Dec 24, 6:00 AM PST	Areal Flood Advisory	HNX	Fresno, Kern, Kings	6 hr
Dec 24, 6:22 AM PST	Flash Flood Warning	HNX	Fresno, Madera	3 hr
Dec 24, 6:25 AM PST	Areal Flood Advisory	HNX	Fresno, Kern, Kings, Tulare	5 hr
Dec 24, 6:36 AM PST	Areal Flood Advisory	HNX	Fresno, Madera, Tulare	7 hr
Dec 24, 7:00 AM PST	Areal Flood Advisory	HNX	Kern, Tulare	10 hr
Dec 24, 7:03 AM PST	Flash Flood Warning Considerable damage threat	HNX	Kern	5 hr
Dec 24, 7:05 AM PST	Flash Flood Warning	HNX	Kern	5 hr
Dec 24, 7:24 AM PST	Flash Flood Warning Considerable damage threat	HNX	Kern	10 hr
Dec 24, 7:48 AM PST	Areal Flood Advisory	HNX	Fresno, Kern, Tulare	5 hr
Dec 24, 8:36 AM PST	Flash Flood Warning Considerable damage threat	HNX	Kern	114 min
Dec 24, 8:40 AM PST	Flash Flood Warning Considerable damage threat	HNX	Kern	4 hr
Dec 24, 10:06 AM PST	Flash Flood Warning Considerable damage threat	HNX	Kern	7 hr
Dec 24, 10:32 AM PST	Areal Flood Advisory	HNX	Fresno, Madera	2 hr
Dec 24, 1:08 PM PST	Special Weather Statement	HNX		37 min

Nearby

Flash Flood Warnings in California, 2025 Every flash flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.