Alert archive / California / Flood Watches in 2016
Flood Watch 1, NWS Sacramento, CA
NWS Sacramento, CA issued this flood watch at Mar 9, 2016, 2:31 PM PST for 19 counties in California. It took effect at Mar 10, 2016, 4:00 AM PST. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Mar 9, 2016, 2:31 PM PST (22:31 UTC)
- In effect from
- Mar 10, 2016, 4:00 AM PST
- Expired
- Mar 14, 2016, 8:42 AM PDT
- In force
- 4 days
- Issued by
- NWS Sacramento, CA
- Flood severity
- None
Counties Amador County, CA, Butte County, CA, Calaveras County, CA, Colusa County, CA, El Dorado County, CA, Glenn County, CA, Lake County, CA, Nevada County, CA, Placer County, CA, Sacramento County, CA, San Joaquin County, CA, Shasta County, CA, Solano County, CA, Stanislaus County, CA, Sutter County, CA, Tehama County, CA, Tuolumne County, CA, Yolo County, CA, Yuba County, CA
The radar
The Sacramento radar (KDAX), 52 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 596 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 308 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sacramento, CA wrote its last area forecast discussion before this flood watch went out at Mar 9, 3:11 AM PST, 11 hours 20 minutes earlier.
Area forecast discussion, Mar 9, 3:11 AM PST, 11 hours 20 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>In the hours before
Special weather statement, Mar 9, 2:27 PM PST, 4 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Nearby
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.