Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 8, NWS Houston/Galveston, TX

June 9, 20105 counties in Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jun 9, 2010, 1:54 PM CDT for 5 counties in Texas. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 9, 2010, 1:54 PM CDT (18:54 UTC)
Expired: Jun 9, 2010, 3:45 PM CDT
In force: 111 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Flood severity: None

Counties Brazos County, TX, Burleson County, TX, Grimes County, TX, Madison County, TX, Washington County, TX

The radar

The Ft Hood radar (KGRK), 110 km from the middle of the area, began a volume at 18:55 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.9 hours before the alert went out and 297 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: 3174 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

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 Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 9, 12:31 PM CDT, 1 hour 23 minutes earlier.

Area forecast discussion, Jun 9, 12:31 PM CDT, 1 hour 23 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, Jun 9, 11:03 AM CDT, 2 hours 51 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, Jun 9, 9:07 AM CDT, 4 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
907 AM CDT WED JUN 9 2010

TXZ163-164-176>178-198-091500-
GRIMES-HOUSTON-MADISON-SAN JACINTO-TRINITY-WALKER-
907 AM CDT WED JUN 9 2010

...SIGNIFICANT WEATHER ADVISORY...

AT 903 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 14 MILES SOUTHEAST OF MADISONVILLE...MOVING
NORTHEAST AT 30 MPH.

FUNNEL CLOUDS...WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...CRABBS PRAIRIE...
BEDIAS...AUSTONIO...RIVERSIDE...POINT BLANK...OAKHURST...MIDWAY...
MADISONVILLE...LOVELADY AND HUNTSVILLE.

GUSTY WINDS MAY CAUSE UNSECURED SMALL OBJECTS SUCH AS TRASH CANS TO
BLOW AROUND. AVOID TALL OUTDOOR OBJECTS THAT CAN ATTRACT LIGHTNING.
IF YOU ARE OUTDOORS AND HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.  SEEK SHELTER IN A STURDY STRUCTURE OR
NON-CONVERTABLE AUTOMOBILE UNTIL THIS STORM HAS PASSED.

A TORNADO WATCH IS IN EFFECT UNTIL 3 PM FOR THE AREA.

A FLOOD WATCH IS IN EFFECT UNTIL 7 PM FOR THE AREA.

LAT...LON 3136 9531 3070 9517 3061 9601 3106 9605
      3110 9594 3111 9578 3114 9578 3116 9575
      3117 9574 3119 9574
TIME...MOT...LOC 1406Z 234DEG 24KT 3087 9569

Special weather statement, Jun 9, 10:22 AM CDT, 3 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1022 AM CDT WED JUN 9 2010

TXZ163-164-177-091615-
HOUSTON-TRINITY-WALKER-
1022 AM CDT WED JUN 9 2010

...SIGNIFICANT WEATHER ADVISORY...

AT 1017 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 19 MILES NORTHWEST OF APPLE SPRINGS...MOVING
NORTHEAST AT 25 MPH.

FUNNEL CLOUDS...WINDS GREATER THAN 40 MPH...CONTINUOUS CLOUD TO
GROUND LIGHTNING...VERY HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...WECHES...PENNINGTON...
APPLE SPRINGS...LOVELADY...LATEXO...KENNARD AND CROCKETT.

GUSTY WINDS MAY CAUSE UNSECURED SMALL OBJECTS SUCH AS TRASH CANS TO
BLOW AROUND. AVOID TALL OUTDOOR OBJECTS THAT CAN ATTRACT LIGHTNING
AND DO NOT USE ELECTRICAL APPLIANCES OR A CORDED TELEPHONE A THE
LIGHTNING THREAT HAS PASSED. SEEK SHELTER IN A STURDY STRUCTURE OR
NON-CONVERTIBLE AUTOMOBILE UNTIL THIS STORM HAS PASSED.

A TORNADO WATCH IS IN EFFECT UNTIL 3 PM FOR THE AREA.

A FLOOD WATCH IS IN EFFECT UNTIL 7 PM FOR THE AREA.

LAT...LON 3158 9524 3159 9517 3153 9510 3148 9510
      3147 9506 3145 9504 3144 9500 3115 9486
      3087 9549 3153 9557 3159 9542 3160 9529
      3160 9527
TIME...MOT...LOC 1522Z 206DEG 24KT 3146 9515

Special weather statement, Jun 9, 11:42 AM CDT, 2 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, Jun 9, 12:35 PM CDT, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1235 PM CDT WED JUN 09 2010

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

0945 AM     FLASH FLOOD      BRYAN                   30.67N 96.37W
06/09/2010                   BRAZOS             TX   LAW ENFORCEMENT

            HIGH WATER IN BRYAN NEAR WEST 28TH AND SOUTH. PEACH CREEK
            ROAD IMPASSABLE

0945 AM     FLASH FLOOD      MILLICAN                30.47N 96.20W
06/09/2010                   BRAZOS             TX   LAW ENFORCEMENT

            HIGH WATER ON FM159.

0950 AM     FLASH FLOOD      3 S IOLA                30.73N 96.07W
06/09/2010                   GRIMES             TX   LAW ENFORCEMENT

            HIGH WATER ON FM244 BETWEEN IOLA AND KEITH.

0950 AM     FLASH FLOOD      CALDWELL                30.53N 96.70W
06/09/2010                   BURLESON           TX   LAW ENFORCEMENT

            NUMEROUS ROADS HAVE HIGH WATER THROUGHOUT THE COUNTY
            INCLUDING CR377...FM908...FM60 WEST...FM 1361...HWY 36
            NORTH NEAR COUNTY LINE.

0955 AM     LIGHTNING        COLLEGE STATION         30.60N 96.31W
06/09/2010                   BRAZOS             TX   EMERGENCY MNGR

            LIGHTNING KNOCKED OUT POWER IN PORTIONS OF THE CITY.

0955 AM     FLASH FLOOD      COLLEGE STATION         30.60N 96.31W
06/09/2010                   BRAZOS             TX   EMERGENCY MNGR

            HIGH WATER AT SOUTHWEST PARKWAY AT WELCH AND AT DEACON
            AND AURORA.

1046 AM     FLASH FLOOD      COLLEGE STATION         30.60N 96.31W
06/09/2010                   BRAZOS             TX   BROADCAST MEDIA

            KING COLE STREET IN COLLEGE STATION CLOSED.

1046 AM     FLASH FLOOD      COLLEGE STATION         30.60N 96.31W
06/09/2010                   BRAZOS             TX   BROADCAST MEDIA

            LOW WATER OVER BRIDGE ON SOUTHWOOD WITH BEE CREEK FLOWING
            OVER ITS BANKS IN COLLEGE STATION.

&&

GHAFELE

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 4:57 AM CDT	Flood Watch	HGX	Austin, Brazos, Burleson, Colorado, Grimes, Houston and 8 more	34 hr
Jun 9, 5:43 AM CDT	Special Weather Statement	HGX	Grimes	62 min
Jun 9, 7:12 AM CDT	Tornado Warning	HGX	Grimes, Montgomery, Walker	24 min
Jun 9, 7:57 AM CDT	Tornado Warning	HGX	Houston, Madison, Walker	33 min
Jun 9, 8:29 AM CDT	Tornado Warning	HGX	Houston, Trinity, Walker	31 min
Jun 9, 8:58 AM CDT	Flash Flood Warning	HGX	Brazos, Burleson, Grimes, Washington	2 hr
Jun 9, 9:07 AM CDT	Special Weather Statement	HGX	Madison, Walker	53 min
Jun 9, 10:22 AM CDT	Special Weather Statement	HGX	Houston, Trinity	53 min
Jun 9, 10:40 AM CDT	Severe Thunderstorm Warning	HGX	Austin, Colorado, Washington	65 min
Jun 9, 10:57 AM CDT	Flash Flood Warning	HGX	Brazos, Burleson, Grimes, Madison, Washington	3 hr
Jun 9, 11:42 AM CDT	Special Weather Statement	HGX	Brazos	63 min
Jun 9, 12:40 PM CDT	Severe Thunderstorm Warning	HGX	Grimes, Montgomery, Walker	50 min
Jun 9, 12:46 PM CDT	Tornado Warning	HGX	Montgomery	29 min
Jun 9, 2:50 PM CDT	Severe Thunderstorm Warning	HGX	Liberty, Polk, San Jacinto	40 min
Jun 9, 4:26 PM CDT	River Flood Warning	HGX	Burleson, Washington	18 hr
Jun 9, 4:26 PM CDT	River Flood Warning	HGX	Burleson, Lee	18 hr
Jun 9, 4:26 PM CDT	River Flood Warning	HGX	Burleson, Lee	45 hr
Jun 9, 4:51 PM CDT	Areal Flood Advisory	HGX	Brazos, Burleson, Grimes, Madison, Walker	114 min
Jun 9, 6:05 PM CDT	Flash Flood Warning	HGX	Brazos, Grimes, Madison, Walker	115 min

Nearby

Flash Flood Warnings in Texas, 2010 Every flash flood warning in 2010

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.