Alert archive / Kansas / Special Weather Statements in 2018

Special Weather Statement, NWS Wichita, KS

July 21, 2018Neosho County, Kansas

NWS Wichita, KS issued this special weather statement at Jul 21, 2018, 2:05 AM CDT for Neosho County, Kansas. It was in force for 25 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
Jul 21, 2018, 2:05 AM CDT (07:05 UTC)
Expired
Jul 21, 2018, 2:30 AM CDT
In force
25 min
Issued by
NWS Wichita, KS

County Neosho County, KS

The radar

The Tulsa radar (KINX), 144 km from the middle of the area, began a volume at 07:06 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, 7.1 hours before the alert went out and 139 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 2018-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 69 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 2018-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -60 square meters per square second.1939587897Sfc1 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
69 J/kg
Mixed-layer CIN
-267 J/kg
Mixed-layer LCL
2856 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-60 m²/s²
0-3 km storm-relative helicity
-32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

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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 Wichita, KS wrote its last area forecast discussion before this special weather statement went out at Jul 20, 11:22 PM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jul 20, 11:22 PM CDT, 2 hours 43 minutes before
Area Forecast Discussion
National Weather Service Wichita KS
1122 PM CDT Fri Jul 20 2018

.SHORT TERM...(This evening through Monday night)
Issued at 329 PM CDT Fri Jul 20 2018

Currently have a shortwave tracking southeast across the western
Great lakes with upper ridging centered over the southern Rockies.
Messy surface pattern is in place across the area, with a
stationary front stretching from near KMCI to just north of I-70
across KS. There also appears to be a thermal heat axis punching
into sw KS that is acting like a dryline.

Current thinking is that surface based storms will get going
across southwest KS and also over sw Nebraska along their
respective boundaries. With northwest flow still in place, this
activity will try to drift southeast overnight. With building mid
level capping, confidence is low on how far south storms will
make it. For now, feel our western flank will have the better
chances this evening. With mid level baroclinic zone still in
place, also can't rule out some sct convection over our northeast
flank.

Upper low will continue to churn over the southern Great Lakes and
northern Ohio Valley on Sat with weak cold front pushing further
south. Temps will be a few degrees cooler on Sat along with
slightly lower dewpoints. The better shower and storm chances
will be pushed well east of the area.

Still decent model agreement in shortwave tracking across southern
Canada Sun into Sun night. This will push a cold front across the
northern and central Plains and will provide chance for storms
across northern KS Sun night with these conditions continuing
into Mon morning.

.LONG TERM...(Tuesday through Friday)
Issued at 329 PM CDT Fri Jul 20 2018

Broad upper ridge will continue to expand across the desert
southwest into the central Rockies with a cutoff circulation
remaining over the southeast CONUS. GFS and ECMWF agree on another
shortwave tracking across southern Canada Mon through Tue and will
attempt to push another cold front down into the Plains. This will
bring precip chances back, especially for northern portions of
Kansas.

Staying in nw flow will keep highs through these extended periods
close to normal, which is in the lower 90s.

&&

.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
Issued at 1122 PM CDT Fri Jul 20 2018

Scattered strong to severe storms will affect parts of central
and southern Kansas overnight. Otherwise, VFR conditions expected
to prevail thru the forecast valid period away from any storms
with an easterly component surface flow continuing across the area
through Saturday.

KED

&&

.PRELIMINARY POINT TEMPS/POPS...
Wichita-KICT    73  93  71  93 /  30   0  10   0
Hutchinson      71  93  69  92 /  20   0  10   0
Newton          71  93  68  92 /  20   0   0   0
ElDorado        71  92  67  91 /  20   0   0   0
Winfield-KWLD   73  92  70  93 /  20   0   0   0
Russell         68  91  68  93 /  10   0  10   0
Great Bend      69  92  69  92 /  20   0  10   0
Salina          70  93  69  94 /  10   0   0   0
McPherson       70  91  68  92 /  20   0   0   0
Coffeyville     72  93  69  92 /  30  10   0   0
Chanute         70  92  67  90 /  30  10   0   0
Iola            70  92  67  90 /  20  10   0   0
Parsons-KPPF    71  92  68  91 /  30  10   0   0

&&

.ICT WATCHES/WARNINGS/ADVISORIES...None.
&&

SHORT TERM...RBL
LONG TERM...RBL
AVIATION...KED
Hazardous weather outlook, Jul 20, 10:59 PM CDT, 3 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Wichita KS
1059 PM CDT Fri Jul 20 2018

KSZ032-033-047>053-067>072-082-083-091>096-098>100-220400-
Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase-
Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper-
Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette-
1059 PM CDT Fri Jul 20 2018

This hazardous weather outlook is for portions of Central Kansas,
South Central Kansas and Southeast Kansas.

.DAY ONE...Tonight

Strong to severe storms will be possible through about 2 am across
portions of central and southern Kansas, generally along and south
of a Great Bend to McPherson to Cottonwood Falls line. The main
risks will be hail to half dollar size, wind gusts to 65 mph and
locally heavy rainfall.

The Cow Creek near Hutchinson will continue a slow rise but remain
below flood stage overnight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The Cow Creek near Hutchinson will continue to climb, cresting
Saturday afternoon. Cow Creek is expected to remain below flood
stage. Strong storms will be possible late Sunday night into Monday
morning for locations generally along and north of Interstate 70.

Strong storms are also possible Wednesday into Wednesday night
across mainly central Kansas.

Strong storms will be possible periodically Thursday afternoon and
evening over most of the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

&&

For a graphical version of this information, see our webpage at:
http://weather.gov/wichita/hwo/

In the hours before

Local storm report, Jul 21, 1:00 AM CDT, 1 hour 5 minutes before
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Special weather statement, Jul 21, 1:00 AM CDT, 1 hour 5 minutes before
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Special weather statement, Jul 21, 1:26 AM CDT, 39 minutes before
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Special weather statement, Jul 21, 1:29 AM CDT, 36 minutes before
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Special weather statement, Jul 21, 1:59 AM CDT, 6 minutes before
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Special weather statement, Jul 21, 2:05 AM CDT, 0 minutes before
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The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 10:57 PM CDTSpecial Weather StatementICTMcPherson48 min
Jul 20, 11:26 PM CDTSpecial Weather StatementICTChase49 min
Jul 20, 11:30 PM CDTSpecial Weather StatementICTAllen, Woodson45 min
Jul 20, 11:33 PM CDTSpecial Weather StatementICTMarion42 min
Jul 20, 11:41 PM CDTSpecial Weather StatementICTBarton, Rice64 min
Jul 20, 11:59 PM CDTSpecial Weather StatementICTSedgwick61 min
Jul 21, 12:10 AM CDTSpecial Weather StatementICTButler65 min
Jul 21, 12:36 AM CDTSpecial Weather StatementICTCowley54 min
Jul 21, 12:42 AM CDTSpecial Weather StatementICTMcPherson, Marion63 min
Jul 21, 12:50 AM CDTSevere Thunderstorm WarningICTEllsworth, Rice40 min
Jul 21, 1:00 AM CDTSpecial Weather StatementICTSedgwick60 min
Jul 21, 1:26 AM CDTSpecial Weather StatementICTHarvey64 min
Jul 21, 1:29 AM CDTSpecial Weather StatementICTMcPherson61 min
Jul 21, 1:59 AM CDTSpecial Weather StatementICTButler61 min
Jul 21, 3:36 AM CDTSpecial Weather StatementICTGreenwood54 min

Nearby

Special Weather Statements in Kansas, 2018Every special weather statement 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.