Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Goodland, KS

September 3, 2021Greeley County, Kansas

NWS Goodland, KS issued this special weather statement at Sep 3, 2021, 10:25 PM MDT for Greeley County, Kansas. It was in force for 50 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
Sep 3, 2021, 10:25 PM MDT (04:25 UTC)
Expired
Sep 3, 2021, 11:15 PM MDT
In force
50 min
Issued by
NWS Goodland, KS
Hail
0.50 in
Wind
30

County Greeley County, KS

The radar

The Goodland radar (KGLD), 117 km from the middle of the area, began a volume at 04:25 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

Dodge City, (KDDC), launched 00:00Z, 4.4 hours before the alert went out and 188 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, Dodge City, at 00:00Z on 2021-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2188 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, Dodge City, at 00:00Z on 2021-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 square meters per square second.193958Sfc1 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
2188 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
1.4
Supercell composite
9.9

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 Goodland, KS wrote its last area forecast discussion before this special weather statement went out at Sep 3, 10:00 PM MDT, 25 minutes earlier.

Area forecast discussion, Sep 3, 10:00 PM MDT, 25 minutes before
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Hazardous weather outlook, Sep 3, 7:15 PM MDT, 3 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
715 PM MDT Fri Sep 3 2021

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-041200-
Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas-
Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock-
Red Willow-
715 PM MDT Fri Sep 3 2021 /815 PM CDT Fri Sep 3 2021/

This hazardous weather outlook is for extreme southwest Nebraska...
northwest Kansas and east central Colorado.

.DAY ONE...TONIGHT...

Non severe thunderstorms are likely for much of the area through the
overnight hours. The primary hazards will be cloud to ground
lightning, wind gusts up to 40 mph and a period of locally heavy
rainfall which may significantly reduce visibilities.

Fog will return to the area within a few hours of sunrise and
continue through a few hours after sunrise Saturday morning. Dense
fog with visibilities of one quarter mile or less cannot be ruled
out at this time.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY...

Elevated fire weather conditions are possible Monday afternoon,
primarily across far eastern Colorado.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Special weather statement, Sep 3, 4:56 PM MDT, 5 hours 29 minutes before
Special Weather Statement
National Weather Service Goodland KS
456 PM MDT Fri Sep 3 2021

COZ090-032330-
Yuma County CO-
456 PM MDT Fri Sep 3 2021

...A strong thunderstorm will impact portions of southwestern Yuma
County through 530 PM MDT...

At 456 PM MDT, Doppler radar was tracking a strong thunderstorm 8
miles north of Arickaree School, or 22 miles southeast of Akron,
moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of southwestern Yuma
County County, including the following locations... Joes, Abarr and
Kirk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4000 10280 4000 10279 4007 10279 4008 10247
      3957 10247 3957 10280
TIME...MOT...LOC 2256Z 275DEG 29KT 3986 10303

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

024
Special weather statement, Sep 3, 7:58 PM MDT, 2 hours 27 minutes before
Special Weather Statement
National Weather Service Goodland KS
758 PM MDT Fri Sep 3 2021

COZ092-040230-
Cheyenne County CO-
758 PM MDT Fri Sep 3 2021

...A strong thunderstorm will impact portions of western Cheyenne
County in east central Colorado through 830 PM MDT...

At 758 PM MDT, Doppler radar was tracking a strong thunderstorm near
Boyero, or 28 miles south of Flagler, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of western Cheyenne
County County in east central Colorado, including the following
locations... Wild Horse, Firstview and Aroya.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3904 10316 3904 10249 3861 10249 3861 10317
TIME...MOT...LOC 0158Z 285DEG 27KT 3891 10324

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

024
Local storm report, Sep 3, 8:42 PM MDT, 1 hour 43 minutes before
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Special weather statement, Sep 3, 10:25 PM MDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 7:58 PM MDTSpecial Weather StatementGLDCheyenne32 min
Sep 3, 8:26 PM MDTSevere Thunderstorm WarningGLDCheyenne49 min

Nearby

Special Weather Statements in Kansas, 2021Every special weather statement in 2021

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.