Alert archive / West Virginia / River Flood Warnings in 2018

River Flood Warning 76, NWS Baltimore/Washington

September 9, 2018Berkeley County, Jefferson County, West Virginia

NWS Baltimore/Washington issued this river flood warning at Sep 9, 2018, 12:49 PM EDT for Berkeley County, Jefferson County, West Virginia. It took effect at Sep 9, 2018, 7:18 PM EDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Sep 9, 2018, 12:49 PM EDT (16:49 UTC)
In effect from
Sep 9, 2018, 7:18 PM EDT
Expired
Sep 11, 2018, 4:39 AM EDT
In force
33 hr
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
Minor

Counties Berkeley County, WV, Jefferson County, WV

The radar

The Sterling radar (KLWX), 60 km from the middle of the area, began a volume at 16:51 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 Opequon Creek near Martinsburg (MBGW2). The gauge peaked at 12.89 ft at Sep 10, 2018, 7:00 AM EDT.

actionminormoderate51009/0909/1009/1109/12
Action stage
9 ft
Minor stage
10 ft
Moderate stage
12.5 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01616500, 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 25 minutes earlier.

Area forecast discussion, Sep 9, 9:24 AM EDT, 3 hours 25 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 28 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.

IssuedProductOfficeCountiesLasted
Sep 9, 5:15 AM EDTCoastal Flood WarningLWXArlington, King George, City of Alexandria, City of Falls Church3 days
Sep 9, 9:45 AM EDTAreal Flood WarningLWXFrederick12 hr
Sep 9, 12:32 PM EDTAreal Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church, City of Manassas Park6 hr
Sep 9, 12:56 PM EDTRiver Flood WatchLWXLoudoun5 days
Sep 9, 12:56 PM EDTRiver Flood WatchLWXLoudoun5 days
Sep 9, 12:57 PM EDTRiver Flood WatchLWXFairfax, Loudoun5 days
Sep 9, 2:38 PM EDTCoastal Flood WatchLWXArlington, City of Alexandria, City of Falls Church38 hr
Sep 9, 3:34 PM EDTGale WarningLWX4 hr
Sep 9, 6:06 PM EDTRiver Flood WarningLWXLoudoun59 hr
Sep 9, 6:10 PM EDTRiver Flood WarningLWXLoudoun69 hr
Sep 9, 7:44 AM EDTAreal Flood WarningLWXAllegany18 hr
Sep 9, 9:36 AM EDTAreal Flood WarningLWXAnne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 2 more34 hr
Sep 9, 12:46 PM EDTRiver Flood WarningLWXAllegany28 hr
Sep 9, 12:48 PM EDTRiver Flood WarningLWXWashington52 hr
Sep 9, 12:50 PM EDTRiver Flood WarningLWXFrederick48 hr
Sep 9, 12:54 PM EDTRiver Flood WarningLWXWashington71 hr
Sep 9, 1:20 PM EDTRiver Flood WarningLWXAllegany8 hr
Sep 9, 5:58 PM EDTRiver Flood WarningLWXAllegany23 hr

Nearby

River Flood Warnings in West Virginia, 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.