Alert archive / Colorado / Special Weather Statements in 2023

Special Weather Statement, NWS Goodland, KS

August 3, 2023Yuma County, Colorado

NWS Goodland, KS issued this special weather statement at Aug 3, 2023, 12:13 AM MDT for Yuma County, Colorado. 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: Aug 3, 2023, 12:13 AM MDT (06:13 UTC)
Expired: Aug 3, 2023, 12:45 AM MDT
In force: 32 min
Issued by: NWS Goodland, KS
Hail: 0.50 in
Wind: 55

County Yuma County, CO

The radar

The Goodland radar (KGLD), 102 km from the middle of the area, began a volume at 06:15 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.2 hours before the alert went out and 240 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: 1555 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1582 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 57 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 Goodland, KS wrote its last area forecast discussion before this special weather statement went out at Aug 2, 11:12 PM MDT, 1 hour 1 minute earlier.

Area forecast discussion, Aug 2, 11:12 PM MDT, 1 hour 1 minute before

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Hazardous weather outlook, Aug 2, 9:03 PM MDT, 3 hours 10 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
903 PM MDT Wed Aug 2 2023

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-040245-
Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas-
Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock-
Red Willow-
841 PM MDT Wed Aug 2 2023 /941 PM CDT Wed Aug 2 2023/

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

.DAY ONE...TONIGHT...

Isolated to scattered thunderstorms will be possible through much of
tonight. A few of these storms may produce wind gusts up to 60 mph,
hail up to one inch in diameter and locally heavy rainfall.

Fog is possible toward sunrise across the area. Significant
visibility reductions are possible.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH WEDNESDAY...

A potentially significant weather day is anticipated Thursday
afternoon through much of the night as a line of thunderstorms moves
across the area. At this time, the window for severe weather exists
from around 5 PM MDT (6 PM CDT) through midnight MDT (1 AM CDT) and
consists of damaging wind gusts up to 70 mph and damaging hail up to
the size of golf balls. Blowing dust with reduced visibilities will
be possible along the leading edge of the thunderstorm outflow.
Locally heavy rainfall is likely and may lead to flash flooding or
flooding of poor drainage and low lying areas.

The area is outlooked for severe weather Saturday afternoon through
the evening. The primary hazards will be large hail and damaging
winds.

Thunderstorm chances continue through early next week. Severe
thunderstorms and locally heavy rainfall cannot be ruled out.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed tonight. Spotter activation
will likely be needed Thursday afternoon through about midnight.

In the hours before

Special weather statement, Aug 2, 8:55 PM MDT, 3 hours 18 minutes before

Special Weather Statement
National Weather Service Goodland KS
855 PM MDT Wed Aug 2 2023

COZ091-KSZ013-030330-
Kit Carson County CO-Sherman KS-
855 PM MDT Wed Aug 2 2023

...A strong thunderstorm will impact portions of southeastern Kit
Carson and southwestern Sherman Counties through 930 PM MDT...

At 855 PM MDT, Doppler radar was tracking a strong thunderstorm 5
miles south of Burlington. This storm was nearly stationary.

HAZARD...Winds in excess of 40 mph and half inch 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 southeastern Kit
Carson and southwestern Sherman Counties.

This includes the following highways...
 Interstate 70 in Kansas between mile markers 0 and 3.
 Interstate 70 in Colorado between mile markers 433 and 450.
 Highway 385 between mile markers 172 and 188.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3939 10198 3915 10197 3913 10204 3913 10207
      3904 10237 3904 10250 3924 10251
TIME...MOT...LOC 0255Z 247DEG 4KT 3922 10227

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

CJC

Special weather statement, Aug 2, 9:27 PM MDT, 2 hours 46 minutes before

Special Weather Statement
National Weather Service Goodland KS
927 PM MDT Wed Aug 2 2023

COZ091-KSZ013-027-030400-
Kit Carson County CO-Wallace KS-Sherman KS-
927 PM MDT Wed Aug 2 2023

...A strong thunderstorm will impact portions of southeastern Kit
Carson, northwestern Wallace and southwestern Sherman Counties
through 1000 PM MDT...

At 926 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Kanorado, moving east at 10 mph.

HAZARD...Winds in excess of 30 mph and half inch 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 southeastern Kit
Carson, northwestern Wallace and southwestern Sherman Counties.

This includes Interstate 70 in Colorado between mile markers 444 and
449.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3933 10216 3931 10175 3899 10190 3912 10226
TIME...MOT...LOC 0326Z 288DEG 8KT 3919 10206

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

CJC

Special weather statement, Aug 2, 10:41 PM MDT, 1 hour 32 minutes before

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Special weather statement, Aug 2, 11:27 PM MDT, 46 minutes before

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Local storm report, Aug 2, 11:54 PM MDT, 19 minutes before

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Special weather statement, Aug 3, 12:13 AM MDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 7:23 PM MDT	Special Weather Statement	GLD	Cheyenne	52 min
Aug 2, 7:52 PM MDT	Special Weather Statement	GLD	Sherman	38 min
Aug 2, 8:46 PM MDT	Special Weather Statement	GLD	Cheyenne	44 min
Aug 2, 9:27 PM MDT	Special Weather Statement	GLD	Sherman	33 min
Aug 3, 12:59 AM MDT	Special Weather Statement	GLD	Sherman	31 min
Aug 3, 1:31 AM MDT	Special Weather Statement	GLD	Norton	29 min
Aug 3, 1:48 AM MDT	Special Weather Statement	GLD	Cheyenne	12 min
Aug 3, 3:34 AM MDT	Special Weather Statement	GLD	Decatur	26 min
Aug 3, 6:16 AM MDT	Special Weather Statement	GLD	Sheridan	29 min
Aug 3, 7:08 AM MDT	Special Weather Statement	GLD	Graham	37 min
Aug 2, 6:50 PM MDT	Special Weather Statement	GLD	Cheyenne	25 min
Aug 2, 7:15 PM MDT	Special Weather Statement	GLD	Cheyenne	45 min
Aug 2, 7:58 PM MDT	Special Weather Statement	GLD	Cheyenne	47 min
Aug 2, 8:32 PM MDT	Special Weather Statement	GLD	Kit Carson	28 min
Aug 2, 8:43 PM MDT	Special Weather Statement	GLD	Cheyenne	47 min
Aug 2, 8:55 PM MDT	Special Weather Statement	GLD	Kit Carson	35 min
Aug 2, 9:40 PM MDT	Flash Flood Warning	GLD	Cheyenne	3 hr
Aug 2, 10:41 PM MDT	Special Weather Statement	GLD	Kit Carson	49 min
Aug 2, 11:27 PM MDT	Special Weather Statement	GLD	Kit Carson	48 min
Aug 3, 1:12 AM MDT	Special Weather Statement	GLD	Kit Carson	18 min
Aug 3, 3:58 AM MDT	Special Weather Statement	GLD	Red Willow	47 min
Aug 3, 4:45 AM MDT	Special Weather Statement	GLD	Red Willow	15 min

Nearby

Special Weather Statements in Colorado, 2023 Every special weather statement in 2023

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.