Alert archive / Maryland / River Flood Warnings in 2018
River Flood Warning 79, NWS Baltimore/Washington
NWS Baltimore/Washington issued this river flood warning at Sep 9, 2018, 1:20 PM EDT for Allegany County, Maryland. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Sep 9, 2018, 1:20 PM EDT (17:20 UTC)
- Expired
- Sep 9, 2018, 8:58 PM EDT
- In force
- 8 hr
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Flood severity
- Minor
County Allegany County, MD
The radar
The Sterling radar (KLWX), 127 km from the middle of the area, began a volume at 17:22 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 river
Written for the forecast point Georges Creek near Franklin/Westernport (WSTM2). The gauge peaked at 8.82 ft at Sep 9, 2018, 5:00 PM EDT.
- Action stage
- 7 ft
- Minor stage
- 9.1 ft
- Moderate stage
- 11.1 ft
- Major stage
- 13.1 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01599000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this river flood warning went out at Sep 9, 9:24 AM EDT, 3 hours 56 minutes earlier.
Area forecast discussion, Sep 9, 9:24 AM EDT, 3 hours 56 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>Hazardous weather outlook, Sep 9, 5:21 AM EDT, 7 hours 59 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>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 5:15 AM EDT | Coastal Flood Warning | LWX | Arlington, King George, City of Alexandria, City of Falls Church | 3 days |
| Sep 9, 9:45 AM EDT | Areal Flood Warning | LWX | Frederick | 12 hr |
| Sep 9, 12:32 PM EDT | Areal Flood Warning | LWX | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church, City of Manassas Park | 6 hr |
| Sep 9, 12:56 PM EDT | River Flood Watch | LWX | Loudoun | 5 days |
| Sep 9, 12:56 PM EDT | River Flood Watch | LWX | Loudoun | 5 days |
| Sep 9, 12:57 PM EDT | River Flood Watch | LWX | Fairfax, Loudoun | 5 days |
| Sep 9, 2:38 PM EDT | Coastal Flood Watch | LWX | Arlington, City of Alexandria, City of Falls Church | 38 hr |
| Sep 9, 3:34 PM EDT | Gale Warning | LWX | 4 hr | |
| Sep 9, 6:06 PM EDT | River Flood Warning | LWX | Loudoun | 59 hr |
| Sep 9, 6:10 PM EDT | River Flood Warning | LWX | Loudoun | 69 hr |
| Sep 9, 7:44 AM EDT | Areal Flood Warning | LWX | Allegany | 18 hr |
| Sep 9, 9:36 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 2 more | 34 hr |
| Sep 9, 12:46 PM EDT | River Flood Warning | LWX | Allegany | 28 hr |
| Sep 9, 12:48 PM EDT | River Flood Warning | LWX | Washington | 52 hr |
| Sep 9, 12:50 PM EDT | River Flood Warning | LWX | Frederick | 48 hr |
| Sep 9, 12:54 PM EDT | River Flood Warning | LWX | Washington | 71 hr |
| Sep 9, 5:58 PM EDT | River Flood Warning | LWX | Allegany | 23 hr |
| Sep 9, 12:49 PM EDT | River Flood Warning | LWX | Berkeley, Jefferson | 40 hr |
Nearby
River Flood Warnings in Maryland, 2018Every river flood warning in 2018
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; the gauge from the NWS water service and the USGS.