Alert archive / Missouri / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 223, NWS Springfield, MO

July 13, 2018Camden County, Miller County, Pulaski County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 13, 2018, 10:01 PM CDT for Camden County, Miller County, Pulaski County, Missouri. It was in force for 44 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
Jul 13, 2018, 10:01 PM CDT (03:01 UTC)
Expired
Jul 13, 2018, 10:45 PM CDT
In force
44 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Camden County, MO, Miller County, MO, Pulaski County, MO

The radar

The Springfield radar (KSGF), 120 km from the middle of the area, began a volume at 03:02 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, 3.0 hours before the alert went out and 171 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 2018-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1267 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 2018-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
1267 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1735 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
23 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 Jul 13, 6:16 PM CDT, 3 hours 45 minutes earlier.

Area forecast discussion, Jul 13, 6:16 PM CDT, 3 hours 45 minutes before
Area Forecast Discussion
National Weather Service Springfield MO
616 PM CDT Fri Jul 13 2018

.SHORT TERM...(This evening through Saturday)
Issued at 156 PM CDT Fri Jul 13 2018

A CU field has developed across much of the area with a little
better CU depth near the Highway 65 corridor and on either side
from the Branson area to the SGF area up to the Lake of the Ozarks
area. There have been a couple tiny blips on radar. Over the next
hour or so, we should see some convection developing between Table
Rock Lake and the SGF area. These isolated storms will move
northward. We can't rule out an isolated strong storm with gusty
winds up to 50 mph, small hail, brief heavy downpours, and of
course lightning. All convection will dissipate by sunset with the
loss of daytime heating.

The upper level ridge continues to slowly move eastward and
gradually start seeing less influence on our local weather on
Saturday. It will still remain hot and humid. At this time, we
will continue the existing Heat Advisories but temperatures will
also be creeping slightly downward as well. We do have a slightly
better chance for scattered storms Saturday afternoon and evening
with a disturbance moving into the region and a weak frontal
boundary. These rain chances will bring some relief to a few more
locations tomorrow.

.LONG TERM...(Saturday Night through Friday)
Issued at 156 PM CDT Fri Jul 13 2018

Scattered storm chances will continue Sunday into Monday along
with more seasonable like warm temperatures thanks to added cloud
cover and a frontal boundary in the area. That frontal boundary
may become oriented from northwest to southeast across the Ozarks
Region with the mid level flow from the northwest. Better than
average rain chances continue into mid week. Guidance shows a
stout shortwave moving across the Midwest Region on Thursday. This
feature will continue storm chances into late next week. While
widespread severe weather is not expected, there is always a
chance for isolated strong to severe storms possible. WPC 7 day
rainfall forecast totals indicate 1 to 2 inches could be possible
which is would be extremely helpful for our drought situation.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 604 PM CDT Fri Jul 13 2018

Widely scattered thunderstorms will diminish early this evening
with the loss of daytime heating. Brief MVFR and IFR are expected
around storms. Otherwise, VFR is expected tonight with light south
to southeast winds.

Scattered thunderstorms are then expected Saturday afternoon.
MVFR and brief IFR conditions will occur around storms along with
gusty and erratic winds.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...Heat Advisory until 8 PM CDT Saturday for MOZ055>058-066>069-
     077>080-088>090-093-094-101.

KS...Heat Advisory until 8 PM CDT Saturday for KSZ073-097-101.

&&

SHORT TERM...Griffin
LONG TERM...Griffin
AVIATION...Schaumann
Hazardous weather outlook, Jul 13, 6:36 PM CDT, 3 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service Springfield MO
636 PM CDT Fri Jul 13 2018

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-142345-
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-
636 PM CDT Fri Jul 13 2018

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Tonight.

Weather hazards expected...

  Limited lightning risk.
  Elevated excessive heat risk.

DISCUSSION...

  Widely scattered thunderstorms will remain possible through
  mid-evening in the general vicinity of the U.S. 65 corridor.
  The main potential hazards will include cloud to ground
  lightning and wind gusts to 40 mph.

  Heat index values will range from the upper 90s to around
  105 degrees until mid-evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

  Scattered storms will occur at times this weekend into next
  week.

  Heat index values will range from the upper 90s to around
  105 degrees on Saturday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/sitrep

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Schaumann

In the hours before

Special weather statement, Jul 13, 8:29 PM CDT, 1 hour 32 minutes before
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Special weather statement, Jul 13, 9:00 PM CDT, 1 hour 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 7:54 PM CDTSevere Thunderstorm WarningSGFSt. Clair36 min
Jul 13, 8:29 PM CDTSpecial Weather StatementSGFBenton31 min
Jul 13, 9:00 PM CDTSpecial Weather StatementSGFBenton45 min
Jul 14, 4:49 PM CDTSpecial Weather StatementSGFOregon26 min
Jul 14, 5:41 PM CDTSpecial Weather StatementSGFPulaski34 min
Jul 14, 6:36 PM CDTSpecial Weather StatementSGFDent24 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2018Every severe thunderstorm warning in 2018

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.