Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 270, NWS San Angelo, TX

October 22, 2004Sutton County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Oct 22, 2004, 7:24 PM CDT for Sutton County, Texas. It was in force for 36 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
Oct 22, 2004, 7:24 PM CDT (00:24 UTC)
Expired
Oct 22, 2004, 8:00 PM CDT
In force
36 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Sutton County, TX

The radar

The San Angelo radar (KSJT), 97 km from the middle of the area, began a volume at 00:23 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

Del Rio, TX (KDRT), launched 00:00Z, 0.4 hours before the alert went out and 129 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, Del Rio, TX at 00:00Z on 2004-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1809 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, Del Rio, TX at 00:00Z on 2004-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
1809 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-21 m²/s²
Significant tornado parameter
-0.6
Supercell composite
-3.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Oct 22, 3:11 PM CDT, 4 hours 13 minutes earlier.

Area forecast discussion, Oct 22, 3:11 PM CDT, 4 hours 13 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
311 PM CDT FRI OCT 22 2004

.DISCUSSION...
MOIST PATTERN SHAPING UP FOR WEST CENTRAL TX...WITH AN ACTIVE
SOUTHERN BRANCH OF THE UPPER JET.

THIS MORNING SAW ELEVATED THUNDERSTORMS FORM WITH MID LEVEL
DESTABILIZATION AND STRONG UPPER JET DYNAMICS. THESE THUNDERSTORMS
HAVE WEAKENED AS THE THE LOW LEVEL JET RELAXED AND LOWER LEVELS
MIXED. MAIN FOCUS FOR RAINFALL WILL GRADUALLY SHIFT TO THE
HEARTLAND AND NORTHWEST HILL COUNTRY OVERNIGHT...AHEAD OF A
SLOWLY ADVANCING 850 MB DRYLINE/PRESSURE TROF. SOME DIVERGENCE
ASSOCIATED WITH THE RIGHT REAR ENTRANCE REGION OF THE UPPER JET...
THOUGH THIS SHOULD BE MAXIMIZED OVER THE HILL COUNTRY AND SOUTH TX.
DIRECTIONAL CONVERGENCE ALONG THE 850MB TROF/DRYLINE NOT TOO
IMPRESSIVE AS PROGGED BY THE MESO-ETA. WILL CONTINUE SLIGHT CHANCE
POPS MOST OF WEST CENTRAL TX...WITH MAIN FOCUS OVER THE HEARTLAND
AND NORTHWEST HILL COUNTRY AFTER MIDNIGHT.

DRIER AIR FILTERS INTO WEST CENTRAL TX ON SATURDAY...ACCOMPANIED BY
LOW AMPLITUDE UPPER RIDGING. SUBTROPICAL MOISTURE FLOW LIFTS ONCE
AGAIN INTO WEST CENTRAL TX ON SUNDAY...IN RESPONSE TO FALLING HEIGHTS
OVER THE SOUTHWESTERN U.S.. THUS REMAINS THE PATTERN THROUGH MOST
OF THE UPCOMING WORKWEEK.

PRIMARY LONG TERM FORECAST CHALLENGE IS DETERMINING TIMING AND
STRENGTH OF EMBEDDED SHORTWAVES IN THE FAST UPPER FLOW ALOFT.
MODELS HISTORICALLY HAVE A DIFFICULT TIME RESOLVING EMBEDDED...FAST
MOVING LOW AMPLITUDE SHORTWAVES...ESPECIALLY IN THE OUTER PERIODS.
WITH PERSISTENT LOW AND MID LEVEL MOISTURE FEED...WILL MAINTAIN RAIN
CHANCES THROUGH LATE NEXT WEEK...RAISING TO CHANCE CATEGORY MOST
AREAS. MEX PROGGED GUIDANCE LOW TEMPS AND DEWPOINTS APPEAR TOO COOL.
OTHERWISE...MEX MAX TEMPS AND POPS APPEAR REASONABLE.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE     60  81  58  81 /  20  10  10  20
SAN ANGELO  60  82  62  82 /  20  10  10  40
JUNCTION    64  82  65  83 /  40  20  20  50

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

14
Hazardous weather outlook, Oct 22, 1:50 PM CDT, 5 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
150 PM CDT FRI OCT 22 2004

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-231930-
BROWN TX-CALLAHAN TX-COKE TX-COLEMAN TX-CONCHO TX-CROCKETT TX-
FISHER TX-HASKELL TX-IRION TX-JONES TX-KIMBLE TX-MASON TX-
MCCULLOCH TX-MENARD TX-NOLAN TX-RUNNELS TX-SAN SABA TX-SCHLEICHER TX-
SHACKELFORD TX-STERLING TX-SUTTON TX-TAYLOR TX-THROCKMORTON TX-
TOM GREEN TX-
150 PM CDT FRI OCT 22 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...
EXPECT SCATTERED STRONG THUNDERSTORMS TO CONTINUE THROUGH
THIS EVENING ACROSS THE NORTHWEST HILL COUNTRY AND THE
HEARTLAND.  THE STRONGEST STORMS WILL LIKELY PRODUCE LOCALLY
HEAVY RAINFALL OF UP TO 2 INCHES...SMALL HAIL...GUSTY
WINDS...AND DANGEROUS CLOUD TO GROUND LIGHTNING.

AN ISOLATED THUNDERSTORM COULD APPROACH SEVERE LIMITS ACROSS
THE NORTHWEST HILL COUNTRY LATE THIS AFTERNOON...AND PRODUCE
LARGE HAIL AND DAMAGING WINDS.

ALTHOUGH MOST OF THE THUNDERSTORMS SHOULD END BY MIDNIGHT...
A FEW STORMS MAY LINGER ACROSS THE NORTHWEST HILL COUNTRY
THROUGH THE EARLY MORNING HOURS BEFORE ENDING.

.DAYS TWO THROUGH SEVEN...

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT LIKELY.

In the hours before

Special weather statement, Oct 22, 1:35 PM CDT, 5 hours 49 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.

IssuedProductOfficeCountiesLasted
Oct 22, 8:31 PM CDTSevere Thunderstorm WarningSJTKimble44 min
Oct 22, 9:13 PM CDTSevere Thunderstorm WarningSJTMason, Menard32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004Every severe thunderstorm warning in 2004

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.