Alert archive / Texas / Flash Flood Warnings in 2009

Flash Flood Warning 42, NWS Fort Worth, TX

May 26, 20094 counties in Texas

NWS Fort Worth, TX issued this flash flood warning at May 26, 2009, 9:52 PM CDT for 4 counties in Texas. 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
May 26, 2009, 9:52 PM CDT (02:52 UTC)
Expired
May 27, 2009, 12:45 AM CDT
In force
3 hr
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Flood severity
None

Counties Bosque County, TX, Hood County, TX, Johnson County, TX, Somervell County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 50 km from the middle of the area, began a volume at 02:56 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

Fort Worth, TX (KFWD), launched 00:00Z, 2.9 hours before the alert went out and 75 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-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2009-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1667 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2009-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1667 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
2295 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

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 Fort Worth, TX wrote its last area forecast discussion before this flash flood warning went out at May 26, 6:19 PM CDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 26, 6:19 PM CDT, 3 hours 33 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, May 26, 5:22 PM CDT, 4 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
522 PM CDT TUE MAY 26 2009

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-271000-
ANDERSON-BELL-BOSQUE-COLLIN-COMANCHE-COOKE-CORYELL-DALLAS-DELTA-
DENTON-EASTLAND-ELLIS-ERATH-FALLS-FANNIN-FREESTONE-GRAYSON-HAMILTON-
HENDERSON-HILL-HOOD-HOPKINS-HUNT-JACK-JOHNSON-KAUFMAN-LAMAR-LAMPASAS-
LEON-LIMESTONE-MCLENNAN-MILAM-MILLS-MONTAGUE-NAVARRO-PALO PINTO-
PARKER-RAINS-ROBERTSON-ROCKWALL-SOMERVELL-STEPHENS-TARRANT-VAN ZANDT-
WISE-YOUNG-
522 PM CDT TUE MAY 26 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THROUGH TONIGHT.

THERE IS A CHANCE FOR STRONG TO SEVERE THUNDERSTORMS THROUGH LATE
EVENING...MAINLY NORTH OF A COMANCHE...WACO...ATHENS LINE.
SEVERE DOWNBURST WINDS AND LARGE HAIL ARE THE MAIN SEVERE WEATHER
THREATS.

LATE TONIGHT...MORE STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED ALONG
AND BEHIND A COLD FRONT MOVING SOUTHEAST ACROSS NORTH TEXAS.
DAMAGING OUTFLOW WINDS AND LARGE HAIL ARE THE MAIN HAZARDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS CHANCES WILL TAPER OFF FROM NORTH TO SOUTH ON
WEDNESDAY AS A COLD FRONT BEGINS TO EXIT NORTH TEXAS. AN ISOLATED
SEVERE STORM WILL BE POSSIBLE.

THUNDERSTORMS RETURN TO THE FORECAST EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED AT ANY TIME THROUGH TONIGHT

In the hours before

Local storm report, May 26, 5:55 PM CDT, 3 hours 57 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>
Special weather statement, May 26, 6:00 PM CDT, 3 hours 52 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, May 26, 6:27 PM CDT, 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>
Local storm report, May 26, 6:40 PM CDT, 3 hours 12 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, May 26, 6:42 PM CDT, 3 hours 10 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, May 26, 6:47 PM CDT, 3 hours 5 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 Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 7:06 PM CDTAreal Flood AdvisoryFWDTarrant114 min
May 26, 7:08 PM CDTSevere Thunderstorm WarningFWDParker, Tarrant52 min
May 26, 7:42 PM CDTAreal Flood AdvisoryFWDWise2 hr
May 26, 7:43 PM CDTSevere Thunderstorm WarningFWDHood, Johnson47 min
May 26, 7:47 PM CDTSevere Thunderstorm WarningFWDDenton, Wise58 min
May 26, 7:57 PM CDTSevere Thunderstorm WarningFWDParker, Tarrant48 min
May 26, 8:11 PM CDTSevere Thunderstorm WarningFWDCooke, Montague49 min
May 26, 8:17 PM CDTSevere Thunderstorm WarningFWDDallas21 min
May 26, 8:28 PM CDTSevere Thunderstorm WarningFWDHood, Johnson, Somervell62 min
May 26, 8:32 PM CDTSevere Thunderstorm WarningFWDCollin43 min
May 26, 8:36 PM CDTSevere Thunderstorm WarningFWDFannin, Grayson54 min
May 26, 8:36 PM CDTSevere Thunderstorm WarningFWDCooke, Denton24 min
May 26, 8:44 PM CDTSevere Thunderstorm WarningFWDWise32 min
May 26, 8:58 PM CDTSevere Thunderstorm WarningFWDCooke, Denton62 min
May 26, 9:25 PM CDTSevere Thunderstorm WarningFWDBosque, Hill, Johnson, Somervell65 min
May 26, 9:49 PM CDTSevere Thunderstorm WarningFWDComanche, Eastland56 min
May 26, 9:53 PM CDTSevere Thunderstorm WarningFWDHunt36 min
May 26, 9:56 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson49 min
May 26, 10:05 PM CDTSevere Thunderstorm WarningFWDLamar55 min
May 26, 10:14 PM CDTSevere Thunderstorm WarningFWDMills36 min
May 26, 10:33 PM CDTSevere Thunderstorm WarningFWDDelta, Lamar42 min
May 26, 10:42 PM CDTSevere Thunderstorm WarningFWDComanche, Erath, Hamilton63 min
May 26, 10:42 PM CDTSevere Thunderstorm WarningFWDGrayson37 min
May 26, 10:50 PM CDTSpecial Weather StatementFWDYoung25 min
May 26, 10:59 PM CDTSevere Thunderstorm WarningFWDEllis, Hill, Johnson61 min
May 26, 11:11 PM CDTSevere Thunderstorm WarningFWDBosque, Somervell64 min
May 26, 11:16 PM CDTSevere Thunderstorm WarningFWDYoung41 min
May 26, 11:20 PM CDTSpecial Weather StatementFWDCoryell25 min
May 26, 11:34 PM CDTSpecial Weather StatementFWDPalo Pinto26 min
May 26, 11:40 PM CDTSevere Thunderstorm WarningFWDPalo Pinto50 min
May 26, 11:45 PM CDTSevere Thunderstorm WarningFWDJack60 min
May 26, 11:47 PM CDTSevere Thunderstorm WarningFWDHill, Johnson43 min
May 27, 12:10 AM CDTSevere Thunderstorm WarningFWDParker65 min
May 27, 12:26 AM CDTSevere Thunderstorm WarningFWDWise64 min
May 27, 12:46 AM CDTSevere Thunderstorm WarningFWDTarrant43 min
May 27, 12:47 AM CDTSpecial Weather StatementFWDNavarro28 min
May 27, 1:04 AM CDTSevere Thunderstorm WarningFWDDenton56 min
May 27, 1:13 AM CDTSpecial Weather StatementFWDNavarro32 min

Nearby

Flash Flood Warnings in Texas, 2009Every flash flood warning in 2009

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.