Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

August 13, 2012Ozark County, Missouri

NWS Springfield, MO issued this special weather statement at Aug 13, 2012, 1:57 AM CDT for Ozark County, Missouri. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 13, 2012, 1:57 AM CDT (06:57 UTC)
Expired
Aug 13, 2012, 2:30 AM CDT
In force
33 min
Issued by
NWS Springfield, MO

County Ozark County, MO

The radar

The Springfield radar (KSGF), 98 km from the middle of the area, began a volume at 06:57 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

Springfield, MO (KSGF), launched 00:00Z, 7.0 hours before the alert went out and 112 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, Springfield, MO at 00:00Z on 2012-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 338 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, Springfield, MO at 00:00Z on 2012-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
338 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1933 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
328 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this special weather statement went out at Aug 13, 12:16 AM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Aug 13, 12:16 AM CDT, 1 hour 41 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, Aug 12, 9:14 PM CDT, 4 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
914 PM CDT SUN AUG 12 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-140215-
BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON-
ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS-
LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON-
LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE-
TANEY-OZARK-OREGON-
914 PM CDT SUN AUG 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED...

  LIMITED HAIL RISK.
  LIMITED THUNDERSTORM WIND DAMAGE RISK.
  LIMITED LIGHTNING RISK.

DISCUSSION...

 WIDELY SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG A
 COLD FRONT THAT WILL STEADILY MOVE WEST TO EAST ACROSS THE AREA
 THE REMAINDER OF TONIGHT. DUE TO MODEST WIND SHEAR AND LIMITED
 INSTABILITY...WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. A FEW
 STRONG TO SEVERE THUNDERSTORMS CANNOT BE RULED OUT THIS EVENING
 ACROSS FAR SOUTHWESTERN MISSOURI...WITH HAIL TO THE SIZE OF
 QUARTERS AND LOCALIZED DAMAGING WIND GUSTS. MOST STORMS WILL
 PRODUCE FREQUENT CLOUD TO GROUND LIGHTNING AND BRIEF...LOCALLY
 HEAVY DOWNPOURS OF RAIN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

 AN ELEVATED RISK FOR WILDFIRES WILL OCCUR MONDAY WITH MODERATELY
 GUSTY NORTHWEST WINDS DEVELOPING BEHIND A COLD FRONT.

 ADDITIONAL ROUNDS OF SCATTERED THUNDERSTORMS MAY BE POSSIBLE AT
 TIMES WEDNESDAY THROUGH THURSDAY NIGHT...WITH THE BEST OVERALL
 CHANCES FOR STRONG TO SEVERE THUNDERSTORMS ON THURSDAY WITH THE
 PASSAGE OF A STRONG COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

 DUE TO THE WIDELY SCATTERED NATURE OF THUNDERSTORM DEVELOPMENT
 FOR THE REST OF TONIGHT...SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE)

GAGAN

In the hours before

Special weather statement, Aug 13, 12:44 AM CDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1244 AM CDT MON AUG 13 2012

MOZ102-103-130615-
BARRY MO-STONE MO-
1244 AM CDT MON AUG 13 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL STONE AND EAST CENTRAL
BARRY COUNTIES UNTIL 115 AM CDT...

AT 1242 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 4 MILES SOUTH OF JENKINS...OR 9 MILES EAST OF
CASSVILLE...MOVING EAST AT 40 MPH. PENNY SIZE HAIL IS EXPECTED WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE BRANSON WEST...CAPE FAIR...GALENA...INDIAN
POINT...JENKINS...KIMBERLING CITY...REEDS SPRING...SHELL KNOB AND
SILVER DOLLAR CITY.

OTHER LOCATIONS IN THIS SIGNIFICANT WEATHER ADVISORY INCLUDE TABLE
ROCK LAKE.

PEOPLE IN CENTRAL STONE AND EASTERN BARRY COUNTIES...INCLUDING TABLE
ROCK LAKE...REEDS SPRING AND BRANSON WEST...SHOULD MONITOR THE
WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE
PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT MONDAY
MORNING FOR SOUTHWEST MISSOURI.

LAT...LON 3663 9380 3678 9381 3683 9334 3682 9334
      3682 9331 3660 9331
TIME...MOT...LOC 0544Z 267DEG 36KT 3672 9369

SCHAUMANN
Special weather statement, Aug 13, 1:57 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
157 AM CDT MON AUG 13 2012

MOZ105-130730-
OZARK MO-
157 AM CDT MON AUG 13 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL OZARK COUNTY UNTIL 230 AM
CDT...

AT 152 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR LONG RUN...OR 21 MILES SOUTH OF AVA...MOVING
EAST AT 40 MPH. NICKEL SIZE HAIL IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE BRIXEY...GAINESVILLE...HARDENVILLE...
ISABELLA...LONG RUN...NOBLE...SUNDOWN...THEODOSIA...THORNFIELD...
WILLHOIT AND ZANONI.

PEOPLE IN CENTRAL OZARK COUNTY...INCLUDING GAINESVILLE...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

LAT...LON 3656 9277 3674 9277 3678 9231 3655 9230
TIME...MOT...LOC 0658Z 270DEG 35KT 3665 9265

SCHAUMANN

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 11:15 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton20 min
Aug 13, 12:44 AM CDTSpecial Weather StatementSGFStone31 min
Aug 13, 3:39 AM CDTSpecial Weather StatementSGFShannon36 min

Nearby

Special Weather Statements in Missouri, 2012Every special weather statement in 2012

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.