Alert archive / Missouri / Special Weather Statements in 2014

Special Weather Statement, NWS Springfield, MO

May 9, 2014Howell County, Missouri

NWS Springfield, MO issued this special weather statement at May 9, 2014, 12:13 PM CDT for Howell County, Missouri. It was in force for 32 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: May 9, 2014, 12:13 PM CDT (17:13 UTC)
Expired: May 9, 2014, 12:45 PM CDT
In force: 32 min
Issued by: NWS Springfield, MO

County Howell County, MO

The radar

The Springfield radar (KSGF), 141 km from the middle of the area, began a volume at 17:13 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 12:00Z, 5.2 hours before the alert went out and 167 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: 400 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.1

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 May 9, 6:17 AM CDT, 5 hours 56 minutes earlier.

Area forecast discussion, May 9, 6:17 AM CDT, 5 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
617 AM CDT Fri May 9 2014

...Aviation Update...

.SHORT TERM...(Today and Tonight)
Issued at 245 AM CDT FRI MAY 9 2014

Scattered convection continues to move east/southeast across this
area this morning, ahead of an approaching cold front.  This front
isn't terribly well defined this morning, owning to widespread
modification from thunderstorm outflow.  That front should continue
to settle southeast this morning, likely accelerating a bit later
today as an approaching shortwave (currently over western Kansas)
gives it a bit of a kick.

Scattered showers/thunderstorms will continue in some fashion
through the morning hours today, with some uptick in strength and/or
renewed development east of U.S. 65 later this afternoon.  With the
approaching shortwave, deep layer shear should be sufficient for
organized storms.  Assuming that remnant convection and cloud cover
this morning doesn't preclude at least modest destabilization across
this area this afternoon, several strong to severe thunderstorms
will be possible later this afternoon into this evening.  Steep
lapse rates and good shear in the hail growth zone suggests the
potential for several larger hail reports (perhaps as large as golf
balls) with supercell structures.  Short term model guidance also
suggests the development of low level theta-e differentials between
20K and 30K, which would be favorable for strong downburst wind
gusts.  Any tornado threat this afternoon should be closely tied to
interactions between outflow boundaries and other small scale
features, so while not particularly widespread, it will be something
to watch.

.LONG TERM...(Saturday through Thursday)
Issued at 245 AM CDT FRI MAY 9 2014

The frontal boundary, again modified by numerous outflow boundaries,
is then expected to settle into southern Missouri or perhaps
northern Arkansas by early Saturday morning, before quickly mixing
back north as a warm front during the day Saturday.  Behind that
warm front, a very unstable airmass will build into the area
Saturday afternoon, along with appreciable large scale shear.  Weak
height rises and overall nebulous forcing make Saturday's severe
weather threat highly conditional, but given the airmass that will
be in place, severe weather is a good bet SHOULD something be able
to develop.

Any convection that fires Saturday afternoon and early evening
should then translate east across central and eventually eastern
Missouri with the overall mean flow heading into late Saturday
night.  Interestingly, some model guidance is then hinting at MCS
development late Saturday night and early Sunday along the northern
edge of a strong EML, which will build into the area Sunday.  Much
like Saturday afternoon/evening, there will be conditional nocturnal
severe weather threat for late Saturday night and early Sunday,
assuming something does actually develop.

With the aforementioned EML advecting in Sunday, much of Mother's
Day should be dry once any early morning convection moves out.
Sunday does look to be quite warm and muggy, with widespread upper
60s dewpoints across the region.

A cold front will start to sharpen up across the Central Plains
Sunday night and Monday, as a deep western trough begins to eject
east across the Rockies.  Differences in timing remain among the
guidance suite, but this front should move across the region (fairly
slowly) Monday into Tuesday.  Depending on exact timing and
associated destabilization ahead of the front, one or more rounds of
severe weather will be possible Monday and Tuesday.  Timing and
threats will need to be fine tuned over the coming days.

In the wake of that cold front, northwest flow aloft and much cooler
air at the surface will be in place across the region for a few
days.  Highs look to be 5 to 10 degrees below normal for the middle
and latter portions of next week.|

&&

.AVIATION...(For the 12Z TAFS through 12Z Saturday Morning)
Issued at 613 AM CDT FRI MAY 9 2014

Main concern for aviation today will be TSRA affecting the
terminals. Out of the gate this morning, small area of
thunderstorms will affect SGF and perhaps BBG early in the TAF
period. Additional development is expected this afternoon, which
may impact the BBG terminal. This afternoon's activity is expected
to remain to the east of the JLN and SGF terminals.

TSRA activity will diminish later tonight.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

SHORT TERM...Boxell
LONG TERM...Boxell
AVIATION...Boxell

Hazardous weather outlook, May 9, 4:52 AM CDT, 7 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
452 AM CDT FRI MAY 9 2014

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-101000-
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-
452 AM CDT FRI MAY 9 2014

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED...

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

DISCUSSION...

  SCATTERED THUNDERSTORMS WILL CONTINUE EARLY THIS MORNING ACROSS
  THE OUTLOOK AREA. A FEW OF THE STRONGEST STORMS MAY PRODUCE HAIL
  TO THE SIZE OF QUARTERS.

  LATER THIS AFTERNOON INTO THIS EVENING...ADDITIONAL THUNDERSTORM
  DEVELOPMENT IS EXPECTED AHEAD OF A SLOW MOVING FRONTAL BOUNDARY.
  THE BEST SEVERE WEATHER POTENTIAL WILL BE ACROSS SOUTH CENTRAL
  MISSOURI AND THE EASTERN OZARKS...WHERE HAIL TO SIZE OF GOLF
  BALLS AND WIND GUSTS IN EXCESS OF 60 MPH WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

  THERE IS THEN A CONDITIONAL RISK FOR SEVERE THUNDERSTORMS ON
  SATURDAY AFTERNOON AND SATURDAY EVENING IF THUNDERSTORMS CAN
  MANAGE TO DEVELOP ALONG A RETREATING WARM FRONT. IF STORMS DO
  DEVELOP...THEY WOULD LIKELY BE SUPERCELLS CAPABLE OF PRODUCING
  HAIL TO THE SIZE OF GOLF BALLS AND DAMAGING WIND GUSTS...ALONG
  WITH THE POTENTIAL FOR A FEW TORNADOES.

  ADDITIONAL ROUNDS OF THUNDERSTORMS WILL THEN BE POSSIBLE FROM
  LATE SATURDAY NIGHT INTO EARLY NEXT WEEK. WHILE EXACT TIMING AND
  THREAT AREAS REMAIN UNCERTAIN...SEVERAL CHANCES FOR SEVERE
  THUNDERSTORMS WILL EXIST THROUGH LATE MONDAY NIGHT OR
  TUESDAY...WHEN A COLD FRONT WILL MOVE ACROSS THE AREA AND END
  THE CHANCE FOR SEVERE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION MAY BE NEEDED ACROSS SOUTH CENTRAL MISSOURI
  AND THE EASTERN OZARKS LATER THIS AFTERNOON.

&&

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)

BOXELL

In the hours before

Special weather statement, May 9, 9:43 AM CDT, 2 hours 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
943 AM CDT FRI MAY 9 2014

MOZ081-091-092-091515-
LACLEDE MO-WEBSTER MO-WRIGHT MO-
943 AM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WEBSTER...
NORTHWESTERN WRIGHT AND SOUTHERN LACLEDE COUNTIES UNTIL 1015 AM
CDT...

AT 942 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR NIANGUA...OR 8 MILES NORTHEAST OF
MARSHFIELD...MOVING NORTHEAST AT 50 MPH. PENNY SIZE HAIL IS EXPECTED
WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE COMPETITION...CONWAY...DRY KNOB...
GROVESPRING...MARSHFIELD...MORGAN...NIANGUA...RADER AND TWIN BRIDGES.

INTERSTATE 44 BETWEEN MILE MARKERS 99 AND 108 WILL ALSO BE IMPACTED
BY THIS STORM.

LAT...LON 3732 9289 3741 9298 3749 9285 3773 9251
      3748 9232
TIME...MOT...LOC 1444Z 241DEG 54KT 3744 9279

GRIFFIN

Special weather statement, May 9, 10:21 AM CDT, 1 hour 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1021 AM CDT FRI MAY 9 2014

MOZ070-071-082-083-091545-
DENT MO-PHELPS MO-PULASKI MO-TEXAS MO-
1021 AM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL TEXAS...
NORTHWESTERN DENT...SOUTHEASTERN PULASKI AND SOUTHWESTERN PHELPS
COUNTIES UNTIL 1045 AM CDT...

AT 1017 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 6 MILES NORTHEAST OF ROBY...OR 17 MILES SOUTH
OF WAYNESVILLE...MOVING NORTHEAST AT 50 MPH. PENNY SIZE HAIL...AND
WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE ANUTT...BEULAH...EDGAR SPRINGS...LAKE
SPRING...LECOMA...LENOX...ROBY AND SOUTHERN FORT LEONARD WOOD.

PEOPLE IN NORTHERN TEXAS...NORTHWESTERN DENT...SOUTHEASTERN PULASKI
AND SOUTHWESTERN PHELPS COUNTIES...SHOULD MONITOR THE WEATHER
SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO
TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 3786 9174 3768 9159 3751 9215 3759 9221
TIME...MOT...LOC 1521Z 243DEG 46KT 3762 9203

GRIFFIN

Special weather statement, May 9, 10:42 AM CDT, 1 hour 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1042 AM CDT FRI MAY 9 2014

MOZ070-071-082-083-091630-
DENT MO-PHELPS MO-PULASKI MO-TEXAS MO-
1042 AM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL TEXAS...NORTHERN
DENT...SOUTHEASTERN PULASKI AND SOUTHERN PHELPS COUNTIES UNTIL 1130
AM CDT...

AT 1037 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 3 MILES SOUTHEAST OF EDGAR SPRINGS...OR 17
MILES WEST OF SALEM...MOVING EAST AT 50 MPH. NICKEL SIZE HAIL...AND
WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

PEOPLE IN NORTHERN DENT...NORTHERN TEXAS...SOUTHEASTERN PULASKI AND
SOUTHERN PHELPS COUNTIES...SHOULD MONITOR THE WEATHER SITUATION
CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 3765 9131 3750 9215 3760 9218 3771 9203
      3788 9153 3780 9152 3779 9131
TIME...MOT...LOC 1542Z 251DEG 45KT 3768 9177

GRIFFIN

Local storm report, May 9, 10:58 AM CDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1058 AM CDT FRI MAY 09 2014

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

0700 AM     HAIL             4 NNW BATTLEFIELD       37.17N 93.39W
05/09/2014  M0.75 INCH       GREENE             MO   PUBLIC

            PENNY SIZED HAIL WAS REPORTED NEAR BROOKLINE

&&

MGRIFFIN

Local storm report, May 9, 11:53 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1153 AM CDT FRI MAY 09 2014

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

1130 AM     HAIL             1 SSE SALEM             37.63N 91.53W
05/09/2014  M1.50 INCH       DENT               MO   PUBLIC

            PICTURE FROM SOCIAL MEDIA SHOWED PING PONG SIZED HAIL

&&

MGRIFFIN

Special weather statement, May 9, 12:13 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1213 PM CDT FRI MAY 9 2014

MOZ097-091745-
HOWELL MO-
1213 PM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HOWELL COUNTY UNTIL 1245
PM CDT...

AT 1206 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR POTTERSVILLE...OR 12 MILES SOUTHWEST OF
WEST PLAINS...MOVING NORTHEAST AT 50 MPH. PENNY SIZE HAIL...AND WINDS
AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE PEACE VALLEY...POTTERSVILLE...WEST PLAINS
AND WHITE CHURCH.

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

LAT...LON 3674 9211 3694 9167 3667 9168 3662 9211
TIME...MOT...LOC 1713Z 247DEG 43KT 3669 9196

GRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 5:39 AM CDT	Special Weather Statement	SGF	Newton	51 min
May 9, 6:13 AM CDT	Special Weather Statement	SGF	Lawrence	47 min
May 9, 6:47 AM CDT	Special Weather Statement	SGF	Greene	58 min
May 9, 7:21 AM CDT	Special Weather Statement	SGF	Webster	39 min
May 9, 9:43 AM CDT	Special Weather Statement	SGF	Laclede	32 min
May 9, 10:21 AM CDT	Special Weather Statement	SGF	Phelps	24 min
May 9, 10:42 AM CDT	Special Weather Statement	SGF	Phelps	48 min
May 9, 11:24 AM CDT	Severe Thunderstorm Warning	SGF	Dent	36 min
May 9, 12:23 PM CDT	Special Weather Statement	SGF	Shannon	37 min
May 9, 12:31 PM CDT	Severe Thunderstorm Warning	SGF	Shannon	44 min
May 9, 12:43 PM CDT	Special Weather Statement	SGF	Dent	17 min
May 9, 1:15 PM CDT	Special Weather Statement	SGF	Shannon	30 min
May 9, 1:19 PM CDT	Special Weather Statement	SGF	Dent	26 min
May 9, 4:59 AM CDT	Special Weather Statement	SGF	Cherokee	46 min
May 9, 5:21 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee	24 min

Nearby

Special Weather Statements in Missouri, 2014 Every special weather statement in 2014

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.