Alert archive / California / Flash Flood Warnings in 2023

Flash Flood Warning 28, NWS Hanford, CA

March 11, 2023Tulare County, California

NWS Hanford, CA issued this flash flood warning at Mar 11, 2023, 11:13 PM PST for Tulare County, California. It was in force for 3 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: Mar 11, 2023, 11:13 PM PST (07:13 UTC)
Expired: Mar 12, 2023, 3:15 AM PDT
In force: 3 hr
Issued by: NWS Hanford, CA
Area: Storm-based polygon
Flood severity: None

County Tulare County, CA

The radar

The San Joaquin Valley radar (KHNX), 75 km from the middle of the area, began a volume at 07:14 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.

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 Mar 11, 12:28 PM PST, 10 hours 45 minutes earlier.

Area forecast discussion, Mar 11, 12:28 PM PST, 10 hours 45 minutes before

Area Forecast Discussion
National Weather Service Hanford CA
1228 PM PST Sat Mar 11 2023

.SYNOPSIS...

Spotty Showers and Thunderstorms will mainly be favored for the
communities adjacent to and in orographically favored regions of
the Sierra Nevada Mtn for today. This rainfall will continue to
aid in snow melt for elevations below 5000 feet. Rivers and
Streams, in our CWA, continue to see increased river flows and
flooding since yesterday's storm which has dumped heavy rain on
top of snow.

After today's thunderstorm event, the next chance of rain should
occur Monday night into Wednesday. Rivers and Streams will
continued to have to be monitored for the duration of this event.

&&

.DISCUSSION...

The Storm Prediction Center continues to suggest possible
convection for the San Joaquin Valley this afternoon into this
evening. A steep lapse rate, in addition to strong / low amplitude
westerlies, could help fire up spotty storms in the area. Any
Thunderstorm that form could bring heavy rain, small hail, gusty
winds, and lightning.

Except for a few spotty remnant showers, Sunday into Monday
afternoon will remain dry throughout most of the CWA before
another storm enters our region. Although we will have to monitor
any changes as of currently, we are forecasting approximately
1"-2" of rain for the entire Central Valley. Lesser amounts will
be found in the Eastern and Southern portion of the Valley. The
Sierra Nevada mountains could receive widespread amounts of 5"-6"
of rain, with higher amounts in localized areas. Similar to
yesterdays storm, snow levels will continue to remain high to
approximately 7000 feet; suggesting rain on top of snow once
again. We will have to monitor rivers and creek as snow melt and
water logged soils may increase flow.

&&

.AVIATION...

The San Joaquin Valley can see continued MFVR conditions with rain
showers and possibly IFR conditions in mountains due to heavier
possible precipitation in the form of thunderstorms.

&&

.AIR QUALITY ISSUES...

 None.

&&

.CERTAINTY...

The level of certainty for days 1 and 2 is medium.
The level of certainty for days 3 through 7 is medium.

Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.html for additional information
and/or to provide feedback.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Wednesday morning for CAZ300>336.

Winter Storm Warning until 10 AM PDT Sunday for CAZ323-326>331.

&&

public...Chamberlain
aviation....Chamberlain

weather.gov/hanford

In the hours before

Local storm report, Mar 11, 9:27 PM PST, 1 hour 46 minutes before

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Local storm report, Mar 11, 9:30 PM PST, 1 hour 43 minutes before

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Local storm report, Mar 11, 9:32 PM PST, 1 hour 41 minutes before

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Local storm report, Mar 11, 10:07 PM PST, 1 hour 6 minutes before

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Local storm report, Mar 11, 10:09 PM PST, 1 hour 4 minutes before

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Local storm report, Mar 11, 10:11 PM PST, 1 hour 2 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 4:04 PM PST	Flash Flood Warning	HNX	Fresno, Madera	7 hr
Mar 11, 4:08 PM PST	Severe Thunderstorm Warning	HNX	Fresno	37 min
Mar 11, 4:11 PM PST	Flash Flood Warning	HNX	Kern	9 hr
Mar 11, 4:18 PM PST	Special Weather Statement	HNX	Fresno	27 min
Mar 11, 4:22 PM PST	Special Weather Statement	HNX	Fresno	23 min
Mar 11, 4:43 PM PST	Special Weather Statement	HNX	Fresno	32 min
Mar 11, 4:45 PM PST	Special Weather Statement	HNX	Fresno	30 min
Mar 11, 4:50 PM PST	Special Weather Statement	HNX	Mariposa	25 min
Mar 11, 5:32 PM PST	Flash Flood Warning	HNX	Tulare	7 hr
Mar 11, 5:49 PM PST	Flash Flood Warning	HNX	Mariposa, Tuolumne	105 min
Mar 11, 5:54 PM PST	Special Weather Statement	HNX	Madera	36 min
Mar 11, 6:49 PM PST	Flash Flood Warning	HNX	Tulare	3 hr
Mar 12, 11:51 AM PDT	Special Weather Statement	HNX	Madera	24 min
Mar 12, 1:58 PM PDT	Special Weather Statement	HNX	Mariposa	47 min
Mar 12, 2:53 PM PDT	Special Weather Statement	HNX	Merced	37 min
Mar 12, 3:05 PM PDT	Tornado Warning	HNX	Fresno, Madera, Merced	25 min
Mar 12, 3:22 PM PDT	Severe Thunderstorm Warning	HNX	Fresno, Madera, Merced	23 min
Mar 12, 3:44 PM PDT	Severe Thunderstorm Warning	HNX	Fresno, Madera, Merced	31 min
Mar 12, 3:46 PM PDT	Special Weather Statement	HNX	Merced	29 min
Mar 12, 3:56 PM PDT	Special Weather Statement	HNX	Mariposa	34 min
Mar 12, 4:10 PM PDT	Special Weather Statement	HNX	Merced	35 min
Mar 12, 4:35 PM PDT	Severe Thunderstorm Warning	HNX	Fresno, Madera	25 min
Mar 12, 4:40 PM PDT	Flash Flood Warning Considerable damage threat	HNX	Mariposa, Tuolumne	5 hr
Mar 12, 4:58 PM PDT	Severe Thunderstorm Warning	HNX	Fresno, Madera	32 min

Nearby

Flash Flood Warnings in California, 2023 Every flash flood warning in 2023

Sources

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