Alert archive / Missouri / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 14, NWS Springfield, MO

February 17, 2009Christian County, Douglas County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Feb 17, 2009, 10:26 PM CST for Christian County, Douglas County, Missouri. It was in force for 34 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
Feb 17, 2009, 10:26 PM CST (04:26 UTC)
Expired
Feb 17, 2009, 11:00 PM CST
In force
34 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon

Counties Christian County, MO, Douglas County, MO

The radar

The Springfield radar (KSGF), 59 km from the middle of the area, began a volume at 04:29 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, 4.4 hours before the alert went out and 85 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 2009-02-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2009-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 472 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
472 m²/s²
0-3 km storm-relative helicity
472 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 17, 9:53 PM CST, 33 minutes earlier.

Area forecast discussion, Feb 17, 9:53 PM CST, 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
953 PM CST TUE FEB 17 2009

...MESOSCALE CONVECTIVE DISCUSSION...

.DISCUSSION...

ELEVATED THUNDERSTORMS CONTINUE TO DEVELOP IN NORTHEAST OKLAHOMA
AND EXTREME SOUTHERN MISSOURI ASSOCIATED WITH A STRENGTHENING LOW
LEVEL JET NEAR 55 KNOTS PER CONWAY PROFILER. THIS LOW LEVEL JET HAS
QUICKLY MODIFIED MESOSCALE CONDITIONS WITH 3 HOUR MUCAPE CHANGES
OF 600 J/KG NOTED ALONG THE NOSE OF THE JET. ELEVATED
THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF
QUARTERS IN EXTREME SOUTHERN MISSOURI. UPDATED FORECAST OUT SHORTLY.

ANGLE

&&

.AVIATION...

SOUTH TO SOUTHWEST SURFACE WINDS WILL REMAIN STRONG AND GUSTY
AHEAD OF A FRONT IN THE PLAINS. THIS FRONT WILL MOVE THROUGH
SOUTHWEST MISSOURI OVERNIGHT BRINGING A WIND SHIFT TO THE
NORTHWEST. A DRY FRONTAL PASSAGE IS EXPECTED AT THE AERODROMES.
WIND SHEAR WILL GRADUALLY EASE WITH THE APPROACH AND PASSAGE OF
THE FRONT. MVFR CEILINGS WILL GRADUALLY RAISE TO VFR WITH DRIER
AIR ADVECTING INTO THE REGION.

ANGLE

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&
Hazardous weather outlook, Feb 17, 10:00 PM CST, 26 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1000 PM CST TUE FEB 17 2009

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-190400-
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-
1000 PM CST TUE FEB 17 2009

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

.DAY ONE...TONIGHT.

THUNDERSTORMS ACROSS EXTREME SOUTHERN MISSOURI WILL BE CAPABLE OF
PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND WIND UP TO 60 MPH
THROUGH 3 AM.

BREEZY CONDITIONS WILL PERSIST NORTH AND WEST OF THE OZARK
PLATEAU. LOW PRESSURE OVER THE PLAINS WILL PRODUCE A SOUTH WIND
OF 15 TO 30 MPH AT TIMES.

PATCHY FOG WILL AFFECT SOUTH CENTRAL MISSOURI TONIGHT.
VISIBILITIES WILL BE REDUCED TO NEAR A HALF MILE IN LOCALIZED
AREAS...ESPECIALLY IN VALLEYS AND LOW LYING AREAS.

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

AN UPPER LEVEL DISTURBANCE WILL PUSH THROUGH THE AREA FRIDAY
NIGHT AND MAY BRING A BRIEF PERIOD OF LIGHT SNOW TO THE AREA.
LITTLE OR NO ACCUMULATION IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

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)

ANGLE

In the hours before

Special weather statement, Feb 17, 9:46 PM CST, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
946 PM CST TUE FEB 17 2009

MOZ101>103-180415-
STONE MO-BARRY MO-MCDONALD MO-
946 PM CST TUE FEB 17 2009

...SIGNIFICANT WEATHER ALERT FOR SOUTHEASTERN MCDONALD...SOUTHERN
BARRY AND STONE COUNTIES UNTIL 1015 PM CST...

AT 945 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR CASSVILLE...MOVING EAST AT 60 MPH.

NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS
STORM.

PEOPLE IN SOUTHEASTERN MCDONALD...SOUTHERN BARRY AND STONE
COUNTIES...INCLUDING THE CITIES OF CASSVILLE...WEST BRANSON AND REEDS
SPRING...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

BARJENBRUCH
Special weather statement, Feb 17, 10:13 PM CST, 13 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, Feb 17, 10:19 PM CST, 7 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 Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 17, 10:01 PM CSTSevere Thunderstorm WarningSGFBarry, Christian, Stone, Taney44 min
Feb 17, 11:23 PM CSTSevere Thunderstorm WarningSGFHowell, Ozark37 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2009Every severe thunderstorm 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.