Alert archive / North Carolina / Areal Flood Warnings in 2016

Areal Flood Warning 3, NWS Blacksburg, VA

February 3, 2016Surry County, Yadkin County, North Carolina

NWS Blacksburg, VA issued this areal flood warning at Feb 3, 2016, 5:19 PM EST for Surry County, Yadkin County, North Carolina. 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: Feb 3, 2016, 5:19 PM EST (22:19 UTC)
Expired: Feb 3, 2016, 8:15 PM EST
In force: 3 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Surry County, NC, Yadkin County, NC

The radar

The Roanoke radar (KFCX), 89 km from the middle of the area, began a volume at 22:20 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.3 hours before the alert went out and 73 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 500 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 411 m²/s²
0-3 km storm-relative helicity: 494 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 areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this areal flood warning went out at Feb 3, 3:34 PM EST, 1 hour 45 minutes earlier.

Area forecast discussion, Feb 3, 3:34 PM EST, 1 hour 45 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, Feb 3, 2:52 PM EST, 2 hours 27 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

Local storm report, Feb 3, 2:47 PM EST, 2 hours 32 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>

Local storm report, Feb 3, 3:20 PM EST, 1 hour 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>

Local storm report, Feb 3, 3:32 PM EST, 1 hour 47 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>

Local storm report, Feb 3, 4:08 PM EST, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
408 PM EST WED FEB 03 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     FLOOD            1 NNE ROANOKE           37.29N 79.95W
02/03/2016                   CITY OF ROANOKE    VA   PUBLIC

            HEAVY RAIN CAUSED THE LICK RUN CREEK TO FLOOD THE
            GREENWAY AT BROWN-ROBERTSON PARK

&&

CRAFT

Local storm report, Feb 3, 5:04 PM EST, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
504 PM EST WED FEB 03 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     FLOOD            5 WNW PILOT MOUNTAIN    36.41N 80.56W
02/03/2016                   SURRY              NC   911 CALL CENTER

            EXCESSIVE RAINFALL HAS CAUSED THE ARRARAT RIVER TO
            OVERFLOW ITS BANKS, COVERING A PORTION OF RADAR ROAD IN
            SURRY COUNTY, NC.

&&

JMORROW

Local storm report, Feb 3, 5:05 PM EST, 14 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BLACKSBURG VA
505 PM EST WED FEB 03 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     FLOOD            5 WNW PILOT MOUNTAIN    36.41N 80.56W
02/03/2016                   SURRY              NC   911 CALL CENTER

            EXCESSIVE RAINFALL HAS CAUSED THE ARARAT RIVER TO
            OVERFLOW ITS BANKS, COVERING A PORTION OF RADAR ROAD IN
            SURRY COUNTY, NC.

&&

JMORROW

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 3, 4:00 AM EST	Flash Flood Watch	RNK	Amherst, Bedford, Botetourt, Carroll, Floyd, Franklin and 9 more	11 hr
Feb 3, 8:51 AM EST	Areal Flood Advisory	RNK	Bland, Smyth, Tazewell, Wythe	6 hr
Feb 3, 9:51 AM EST	Areal Flood Advisory	RNK	Carroll, Floyd, Grayson, Patrick, City of Galax	6 hr
Feb 3, 10:36 AM EST	Areal Flood Advisory	RNK	Bedford, Botetourt, Floyd, Franklin, Montgomery, Pulaski and 5 more	6 hr
Feb 3, 10:45 AM EST	Areal Flood Advisory	RNK	Patrick	5 hr
Feb 3, 11:00 AM EST	Special Weather Statement	RNK	Henry, City of Martinsville	45 min
Feb 3, 11:32 AM EST	Flash Flood Warning	RNK	Patrick	6 hr
Feb 3, 12:03 PM EST	Areal Flood Advisory	RNK	Henry, City of Martinsville	4 hr
Feb 3, 12:46 PM EST	Special Weather Statement	RNK	City of Danville	29 min
Feb 3, 1:15 PM EST	Special Weather Statement	RNK	Halifax, City of Danville	30 min
Feb 3, 1:44 PM EST	Special Weather Statement	RNK	Halifax	31 min
Feb 3, 2:34 PM EST	River Flood Warning	RNK	Charlotte, Halifax	4 days
Feb 3, 2:34 PM EST	River Flood Warning	RNK	Halifax	4 days
Feb 3, 2:43 PM EST	Special Weather Statement	RNK	Appomattox, Campbell, Charlotte, Halifax	62 min
Feb 3, 4:22 PM EST	Areal Flood Warning	RNK	Montgomery, Roanoke, City of Roanoke, City of Salem	12 hr
Feb 3, 8:42 AM EST	Flash Flood Warning	RNK	Alleghany, Ashe, Watauga	7 hr
Feb 3, 12:21 PM EST	Special Weather Statement	RNK	Rockingham	24 min
Feb 3, 1:51 PM EST	Special Weather Statement	RNK	Caswell	39 min
Feb 3, 2:31 PM EST	Special Weather Statement	RNK	Caswell	59 min
Feb 3, 3:47 PM EST	Areal Flood Warning	RNK	Alleghany, Ashe, Watauga	6 hr

Nearby

Areal Flood Warnings in North Carolina, 2016 Every areal flood warning in 2016

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.