Alert archive / Kansas / Special Weather Statements in 2020

Special Weather Statement, NWS Dodge City, KS

August 16, 2020Seward County, Kansas

NWS Dodge City, KS issued this special weather statement at Aug 16, 2020, 12:13 PM CDT for Seward County, Kansas. It was in force for 47 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 16, 2020, 12:13 PM CDT (17:13 UTC)
Expired
Aug 16, 2020, 1:00 PM CDT
In force
47 min
Issued by
NWS Dodge City, KS

County Seward County, KS

The radar

The Dodge City radar (KDDC), 99 km from the middle of the area, began a volume at 17:14 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 5.2 hours before the alert went out and 226 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, Amarillo Airport, TX at 12:00Z on 2020-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 417 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, Amarillo Airport, TX at 12:00Z on 2020-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -75 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
417 J/kg
Mixed-layer CIN
-253 J/kg
Mixed-layer LCL
2353 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-75 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

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 Dodge City, KS wrote its last area forecast discussion before this special weather statement went out at Aug 16, 6:04 AM CDT, 6 hours 9 minutes earlier.

Area forecast discussion, Aug 16, 6:04 AM CDT, 6 hours 9 minutes before
Area Forecast Discussion
National Weather Service Dodge City KS
604 AM CDT Sun Aug 16 2020

...Updated for aviation discussion...

.SHORT TERM...(Today and tonight)
Issued at 302 AM CDT Sun Aug 16 2020

Light northwesterly mid to high level flow will persist through
tonight along with very moist flow at lower levels. The lower
levels did dry out a bit overnight as easterly winds pushed some
drier air westward through Dodge City; but this will change this
morning as we moisten back up. Strong instability will develop
this afternoon and evening. Thunderstorms are expected to develop
across the high plains given elevated heating on the western edge
of the higher CAPE late this afternoon, and could move into
extreme western Kansas this evening. Hail to half dollar size and
winds to 60 mph are possible with the strongest storms. This
activity may form into an MCS and move across southwestern Kansas
later in the evening. Given the strong north component to the mid
level flow, any MCS should be steered more southerly and perhaps
stay west of Dodge City. Temperatures this afternoon will reach
into upper 80s to mid 90s from northeast to southwest.

.LONG TERM...(Monday through Saturday)
Issued at 302 AM CDT Sun Aug 16 2020

The lower levels are expected to dry out somewhat by Monday and
Tuesday as the mid to upper level flow becomes more northerly.
This highly amplified pattern with lack of well defined surface
front/moisture convergence will reduce the chances for
thunderstorm activity on through the week and weekend, although
some weak nocturnal t-storm activity can't be completely ruled
out. In the absence of a strong lee trough and lack of downslope
mid level flow mixing to the surface, high temperatures will stay
near or slightly below climatological averages through Friday, and
perhaps near to slightly above average for the weekend.

&&

.AVIATION...(For the 12Z TAFS through 12Z Monday morning)
Issued at 554 AM CDT Sun Aug 16 2020

Low level warm advection and the beginning of daytime mixing
may result in the development of MVFR CIGS at GCK/DDC/LBL by 14z.
Daytime heating will erode this cloud deck by 16z. There is a
chance of t-storms at the GCK/DDC and LBL with gusty winds and
hail after 02z.

&&

.PRELIMINARY POINT TEMPS/POPS...
DDC  90  63  88  63 /  20  30   0   0
GCK  90  61  87  62 /  10  40   0   0
EHA  94  62  90  63 /  30  40   0   0
LBL  92  63  90  63 /  20  40   0   0
HYS  88  64  88  63 /  20  20   0   0
P28  89  65  89  64 /  30  10  10   0

&&

.DDC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...Finch
LONG TERM...Finch
AVIATION...Finch
Hazardous weather outlook, Aug 16, 4:34 AM CDT, 7 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Dodge City KS
434 AM CDT Sun Aug 16 2020

KSZ030-031-043>046-061>066-074>081-084>090-170945-
Trego-Ellis-Scott-Lane-Ness-Rush-Hamilton-Kearny-Finney-Hodgeman-
Pawnee-Stafford-Stanton-Grant-Haskell-Gray-Ford-Edwards-Kiowa-
Pratt-Morton-Stevens-Seward-Meade-Clark-Comanche-Barber-
434 AM CDT Sun Aug 16 2020 /334 AM MDT Sun Aug 16 2020/

This hazardous weather outlook is for portions of central...south
central...southwest and west central Kansas.

.DAY ONE...Today and tonight.

Day 1 Discussion
----------------

There is a chance of thunderstorms late this afternoon into early
tonight, especially across far western Kansas. These storms could
be severe with hail to half dollar size and winds to 60 mph.

Day 1 Hazards
-------------
* Hail: Limited risk
* Thunderstorm wind damage: Limited risk
* Lightning: Elevated risk

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

For more details visit our webpage
https://weather.gov/crh/ghwo?sid=ddc

In the hours before

Special weather statement, Aug 16, 7:27 AM CDT, 4 hours 46 minutes before
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Special weather statement, Aug 16, 7:52 AM CDT, 4 hours 21 minutes before
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Special weather statement, Aug 16, 8:27 AM CDT, 3 hours 46 minutes before
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Special weather statement, Aug 16, 10:20 AM CDT, 1 hour 53 minutes before
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Special weather statement, Aug 16, 11:17 AM CDT, 56 minutes before
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Special weather statement, Aug 16, 12:13 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 5:24 AM CDTSpecial Weather StatementDDCMeade51 min
Aug 16, 6:11 AM CDTSpecial Weather StatementDDCClark49 min
Aug 16, 6:21 AM CDTSpecial Weather StatementDDCBarber39 min
Aug 16, 6:43 AM CDTSevere Thunderstorm WarningDDCClark, Comanche36 min
Aug 16, 7:27 AM CDTSpecial Weather StatementDDCBarber33 min
Aug 16, 7:52 AM CDTSpecial Weather StatementDDCBarber38 min
Aug 16, 8:27 AM CDTSpecial Weather StatementDDCBarber, Pawnee, Pratt48 min
Aug 16, 9:44 AM CDTAreal Flood AdvisoryDDCBarber, Pratt3 hr
Aug 16, 10:20 AM CDTSpecial Weather StatementDDCKiowa40 min
Aug 16, 11:17 AM CDTSpecial Weather StatementDDCSeward43 min
Aug 16, 1:59 PM CDTSpecial Weather StatementDDCSeward31 min
Aug 16, 5:00 PM CDTSpecial Weather StatementDDCMeade30 min

Nearby

Special Weather Statements in Kansas, 2020Every special weather statement in 2020

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.