Alert archive / Texas / Flash Flood Warnings in 2006

Flash Flood Warning 8, NWS San Angelo, TX

June 17, 2006Shackelford County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 17, 2006, 7:54 PM CDT for Shackelford County, 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: Jun 17, 2006, 7:54 PM CDT (00:54 UTC)
Expired: Jun 17, 2006, 11:00 PM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Shackelford County, TX

The radar

The Dyess AFB radar (KDYX), 24 km from the middle of the area, began a volume at 00:57 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, 0.9 hours before the alert went out and 193 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: 1691 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1522 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 17, 6:11 PM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jun 17, 6:11 PM CDT, 1 hour 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
611 PM CDT SAT JUN 17 2006

.AVIATION...
SCATTERED STORMS WILL DEVELOP ACROSS MUCH OF WEST CENTRAL TEXAS
THIS EVENING...EVENTUALLY BECOMING A COMPLEX OF STORMS BY 18/06Z.
STORMS WILL MOVE SOUTHEAST ACROSS WEST CENTRAL TEXAS TONIGHT. SOME
STORMS MAY BE SEVERE WITH LARGE HAIL AND WIND GUSTS GREATER THAN
50 KNOTS.

&&

.PREV DISCUSSION... (ISSUED 230 PM CDT SAT JUN 17 2006)

SHORT TERM...
WATER VAPOR SATELLITE LOOP SHOWING UPPER LOW MOVING EASTWARD
ACROSS KANSAS AND NEBRASKA THIS AFTERNOON WITH A TRAILING
SHORTWAVE MOVING ACROSS NORTHWEST TEXAS. NUMEROUS BOUNDARIES
ACROSS THE AREA TODAY WITH OUTFLOWS FROM PREVIOUS STORMS LAST
NIGHT ACROSS THE BIG COUNTRY AND CONCHO VALLEY AND A DRYLINE
FURTHER WEST TO THE WEST OF LUBBOCK AND MIDLAND. SEVERE WATCH
ALREADY IN EFFECT THIS AFTERNOON ACROSS MUCH OF WEST CENTRAL TEXAS
WITH STORMS ALREADY FORMING FROM CHILDRESS INTO SOUTHWEST
OKLAHOMA. EXPECT TO SEE STORMS DEVELOP FURTHER SOUTH TOWARD THE
BIG COUNTRY AS THE AFTERNOON WEARS ON AS INSTABILITY CONTINUING TO
INCREASE WITH LITTLE CAP. RADAR SHOWING ONE OUTFLOW BOUNDARY JUST
WEST OF THE AREA FROM BIG SPRING TO NEAR SEYMOUR WHICH WILL LIKELY
BE THE FOCUS FOR STORMS IN THE NEXT HOUR OR TWO. SHEAR NOT QUITE
AS STRONG AS YESTERDAY...BUT STILL GOOD ENOUGH AND WITH CAPE
VALUES OVER 2K TO 3K...EXPECT SOME SEVERE STORMS WITH HAIL AND
HIGH WINDS THE MAIN THREAT. EXPECT TO SEE MUCH THE SAME SCENARIO
AS LAST NIGHT WITH AFTERNOON/EVENING STORMS MAINLY ACROSS THE BIG
COUNTRY...THEN ANOTHER OVERNIGHT MESOSCALE CONVECTIVE SYSTEM AS
THE LOW LEVEL JET KICKS UP OVERNIGHT. HAVE INCREASED PRECIP
CHANCES TONIGHT OVER THE EASTERN COUNTIES BASED ON THIS SCENARIO.
STORMS SHOULD EXIT THE AREA DURING THE MORNING SUNDAY...LEAVING
PARTLY CLOUDY SKIES AND WARM TEMPERATURES FOR FATHERS DAY.

LONG TERM...
UPPER RIDGE STARTS TO BUILD BACK IN SUNDAY AND MONDAY WITH A WEAK
INVERTED TROUGH OVER THE TEXAS COAST. THE EARLY PART OF THE
WORK WEEK SHOULD BE WARM AND DRY...BUT WILL HAVE TO WATCH LATER IN
THE WEEK AS GFS BRINGS THE INVERTED TROUGH WESTWARD ACROSS
SOUTHWEST TEXAS. THIS COULD BRING A SLIGHT CHANCE OF RAIN FOR THE
SOUTHERN COUNTIES FROM NEAR JUNCTION TO OZONA FOR WEDNESDAY AND
THURSDAY. INTRODUCED SLIGHT CHANCE OF PRECIP AND SLIGHTLY COOLER
TEMPERATURES FOR FAR SOUTHERN COUNTIES AT THIS POINT. FOR THE
REST OF THE AREA...SHOULD STAY WARM AND DRY THROUGH THE END OF THE
WEEK.

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
SEVERE THUNDERSTORM WATCH UNTIL 9 PM SATURDAY FOR THE FOLLOWING
ZONES: BROWN...CALLAHAN...COKE...COLEMAN...CONCHO...FISHER...
HASKELL...IRION...JONES...MASON...MCCULLOCH...MENARD...NOLAN...
RUNNELS...SAN SABA...SHACKELFORD...STERLING...TAYLOR...
THROCKMORTON...AND TOM GREEN.

&&

99/99/99

Hazardous weather outlook, Jun 17, 2:05 PM CDT, 5 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
205 PM CDT SAT JUN 17 2006

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-181915-
FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO-
CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD-
TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE-
MASON-
205 PM CDT SAT JUN 17 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR ALL OF WEST
CENTRAL TEXAS THIS AFTERNOON AND TONIGHT. A THUNDERSTORM COMPLEX
WILL LIKELY DEVELOP THIS AFTERNOON IN THE BIG COUNTRY...THEN MOVE
SOUTHEAST OR SOUTH INTO THE CONCHO VALLEY AND HEARTLAND LATE THIS
AFTERNOON AND EVENING. THE MAIN THREATS WILL BE LARGE HAIL AND
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS LIKELY THIS AFTERNOON AND EVENING.

In the hours before

Local storm report, Jun 17, 7:23 PM CDT, 31 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 17, 7:31 PM CDT, 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>

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 7:12 PM CDT	Severe Thunderstorm Warning	SJT	Shackelford	33 min
Jun 17, 7:24 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	36 min
Jun 17, 7:30 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford	30 min
Jun 17, 7:44 PM CDT	Severe Thunderstorm Warning	SJT	Throckmorton	31 min
Jun 17, 7:46 PM CDT	Severe Thunderstorm Warning	SJT	Shackelford	44 min
Jun 17, 8:00 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	45 min
Jun 17, 8:02 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	43 min
Jun 17, 8:29 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	31 min
Jun 17, 8:32 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford	43 min
Jun 17, 8:51 PM CDT	Severe Thunderstorm Warning	SJT	Jones	24 min
Jun 17, 8:57 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	48 min
Jun 17, 9:11 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	49 min
Jun 17, 9:22 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels, Taylor	38 min
Jun 17, 9:32 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	43 min
Jun 17, 9:59 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	46 min
Jun 17, 10:14 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, Concho, McCulloch, Runnels, San Saba	61 min
Jun 17, 10:42 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	33 min
Jun 17, 11:12 PM CDT	Severe Thunderstorm Warning	SJT	Brown, McCulloch, San Saba	48 min
Jun 17, 11:41 PM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch	34 min
Jun 18, 12:18 AM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch	57 min
Jun 18, 1:00 AM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels, Taylor	60 min
Jun 18, 1:22 AM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason, Menard	53 min
Jun 18, 2:59 AM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard	46 min
Jun 18, 3:08 AM CDT	Severe Thunderstorm Warning	SJT	Tom Green	50 min
Jun 18, 3:26 AM CDT	Severe Thunderstorm Warning	SJT	Nolan	41 min
Jun 18, 5:14 AM CDT	Severe Thunderstorm Warning	SJT	Coke	31 min
Jun 18, 7:03 AM CDT	Severe Thunderstorm Warning	SJT	Tom Green	27 min

Nearby

Flash Flood Warnings in Texas, 2006 Every flash flood warning in 2006

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.