Alert archive / Colorado / Special Weather Statements in 2023

Special Weather Statement, NWS Denver/Boulder, CO

August 2, 2023Lincoln County, Colorado

NWS Denver/Boulder, CO issued this special weather statement at Aug 2, 2023, 9:32 PM MDT for Lincoln County, Colorado. It was in force for 43 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 2, 2023, 9:32 PM MDT (03:32 UTC)
Expired
Aug 2, 2023, 10:15 PM MDT
In force
43 min
Issued by
NWS Denver/Boulder, CO
Hail
0.25 in
Wind
55

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 67 km from the middle of the area, began a volume at 03:33 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, 3.5 hours before the alert went out and 362 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, N. Platte/Lee Bi, NE at 00:00Z on 2023-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1555 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, N. Platte/Lee Bi, NE at 00:00Z on 2023-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
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 Denver/Boulder, CO wrote its last area forecast discussion before this special weather statement went out at Aug 2, 3:22 PM MDT, 6 hours 10 minutes earlier.

Area forecast discussion, Aug 2, 3:22 PM MDT, 6 hours 10 minutes before
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Hazardous weather outlook, Aug 2, 6:10 PM MDT, 3 hours 22 minutes before
Outdoor Activities Forecast
National Weather Service Denver/Boulder CO
610 PM MDT Wed Aug 2 2023

IT WILL REMAIN UNSETTLED THROUGH MUCH OF THE PERIOD WITH A CHANCE OF
MAINLY AFTERNOON AND EVENING THUNDERSTORMS THROUGH THE PERIOD. AS A
RESULT, TEMPERATURES ARE EXPECTED TO RUN ON THE COOLER SIDE,
GENERALLY BELOW SEASONAL NORMALS.

...The forecast for the central Colorado mountains east of Vail Pass...

.TONIGHT...Mostly cloudy. Chance of thunderstorms in the evening,
then a chance of showers and slight chance of thunderstorms after
midnight. Lows in the mid 40s. Chance of rain 50 percent.
.THURSDAY...Partly cloudy with a slight chance of thunderstorms
in the morning, then mostly cloudy with a chance of thunderstorms
in the afternoon. Highs in the upper 60s. West winds 10 to 20 mph
with gusts up to 30 mph. Chance of precipitation 50 percent.
.THURSDAY NIGHT...Mostly cloudy with a slight chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the mid 40s. West winds 10 to 15 mph with gusts up to
25 mph in the evening, becoming light. Chance of precipitation
20 percent.
.FRIDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid 60s. West winds 10 to 20 mph with
gusts up to 30 mph.
.FRIDAY NIGHT...Mostly clear with a 10 percent chance of
thunderstorms. Lows in the mid 40s.

...Looking further ahead for the mountain areas...

.SATURDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the upper 60s.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows in the lower 40s.
.SUNDAY THROUGH MONDAY...Partly cloudy with a 40 percent chance
of thunderstorms. Highs in the mid 60s. Lows in the lower 40s.
.MONDAY NIGHT...Partly cloudy with a chance of rain showers and
slight chance of thunderstorms. Lows in the lower 40s. Chance of
rain 40 percent.
.TUESDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid 60s.
.TUESDAY NIGHT...Mostly clear with a 10 percent chance of
thunderstorms. Lows in the lower 40s.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the upper 60s.

The ultraviolet index for Denver on Thursday is a 11
which is in the extreme category.

The forecast weather and high temperature for Thursday
at a few cities around the country...

Seattle...Sunny and 84.
San Francisco...Mostly Cloudy and 63.
Los Angeles...Sunny and 75.
Salt Lake City...Thunderstorms and 86.
Las Vegas...Sunny and 103.
Chicago...Partly Cloudy and 87.
Dallas...Very hot and 106.
Boston...Sunny and 80.
New York City...Partly Cloudy and 80.
Washington DC...Partly Cloudy and 87.
Atlanta...Thunderstorms and 87.
Miami...Thunderstorms and 91.

In the hours before

Special weather statement, Aug 2, 4:11 PM MDT, 5 hours 21 minutes before
Special Weather Statement
National Weather Service Denver CO
411 PM MDT Wed Aug 2 2023

COZ050-051-022300-
Phillips County CO-Sedgwick County CO-
411 PM MDT Wed Aug 2 2023

...A strong thunderstorm will impact portions of Phillips and
Sedgwick Counties through 500 PM MDT...

At 411 PM MDT, Doppler radar was tracking a strong thunderstorm near
Fairfield, or 11 miles northwest of Holyoke, moving east at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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.

Locations impacted include...
Holyoke, Haxtun, Sedgwick, Paoli, Amherst, Highland Center,
Fairfield, Marks Butte and Sixteen-Mile Corner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4044 10266 4075 10265 4098 10265 4093 10212
      4045 10216
TIME...MOT...LOC 2211Z 249DEG 21KT 4067 10250

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

ENTREKIN
Special weather statement, Aug 2, 6:32 PM MDT, 3 hours before
Special Weather Statement
National Weather Service Denver CO
632 PM MDT Wed Aug 2 2023

COZ037-030115-
Central and Southeast Park County CO-
632 PM MDT Wed Aug 2 2023

...A strong thunderstorm will impact portions of southeastern Park
County through 715 PM MDT...

At 631 PM MDT, Doppler radar was tracking a strong thunderstorm 4
miles southwest of Guffey, or 29 miles northeast of Hayden Pass Burn
Scar, moving east at 20 mph.

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.

Locations impacted include...
Guffey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3874 10566 3883 10533 3870 10533 3870 10566
TIME...MOT...LOC 0031Z 262DEG 18KT 3869 10556

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

ENTREKIN
Special weather statement, Aug 2, 7:58 PM MDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Denver CO
758 PM MDT Wed Aug 2 2023

COZ036-030245-
Jefferson and West Douglas Counties Above  6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
758 PM MDT Wed Aug 2 2023

...A strong thunderstorm will impact portions of southwestern Douglas
and southeastern Jefferson Counties through 845 PM MDT...

At 758 PM MDT, Doppler radar was tracking a strong thunderstorm near
Sprucewood, or 30 miles south of Denver, moving northeast at 20 mph.

HAZARD...Winds in excess of 45 mph and penny 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.

Locations impacted include...
Roxborough Park, Sprucewood, South Platte and Devil's Head.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3930 10527 3946 10511 3940 10495 3938 10495
      3935 10497 3930 10497 3921 10516
TIME...MOT...LOC 0158Z 220DEG 18KT 3931 10512

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

ENTREKIN
Special weather statement, Aug 2, 9:32 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Denver CO
932 PM MDT Wed Aug 2 2023

COZ046-047-030415-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County CO-
Southeast Elbert County Below 6000 Feet/South Lincoln County CO-
932 PM MDT Wed Aug 2 2023

...Strong thunderstorms will impact portions of southeastern Elbert
and southeastern Lincoln Counties through 1015 PM MDT...

At 930 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles southeast of Matheson to 5 miles south
of Punkin Center to 10 miles south of Forder, or along a line
extending from 16 miles southwest of Limon to 73 miles west of
Cheyenne Wells to 37 miles north of North La Junta. Movement was east
at 25 mph.

HAZARD...Wind gusts of 50 to 55 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.

Locations impacted include...
Hugo, Genoa, Boyero, Karval, Punkin Center, Kutch, Wild Horse Point
and Forder.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle. The strong winds will
arrive well ahead of the storms.

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3852 10379 3875 10379 3903 10393 3905 10390
      3906 10393 3907 10391 3908 10393 3908 10391
      3909 10392 3910 10389 3913 10389 3913 10397
      3915 10389 3916 10388 3930 10341 3885 10319
      3853 10321
TIME...MOT...LOC 0330Z 257DEG 22KT 3908 10387 3877 10372 3853 10373

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

BARJENBRUCH

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 6:32 PM MDTSpecial Weather StatementBOUTeller43 min
Aug 2, 7:58 PM MDTSpecial Weather StatementBOUDouglas47 min
Aug 2, 8:18 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver, Douglas, Elbert, Jefferson42 min
Aug 2, 8:34 PM MDTSevere Thunderstorm WarningBOUDouglas, Elbert41 min
Aug 2, 8:56 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver, Elbert, Weld28 min
Aug 2, 9:52 PM MDTSevere Thunderstorm WarningBOUWeld23 min
Aug 2, 10:03 PM MDTSevere Thunderstorm WarningBOUElbert27 min
Aug 2, 10:13 PM MDTSpecial Weather StatementBOULincoln47 min
Aug 2, 10:14 PM MDTSpecial Weather StatementBOUBroomfield46 min
Aug 2, 10:32 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert43 min
Aug 2, 10:55 PM MDTSpecial Weather StatementBOULincoln50 min
Aug 2, 11:03 PM MDTAreal Flood AdvisoryBOULarimer21 min
Aug 2, 11:24 PM MDTFlash Flood Warning Considerable damage threatBOULarimer5 hr
Aug 2, 11:57 PM MDTSpecial Weather StatementBOUWashington48 min
Aug 3, 3:01 PM MDTSpecial Weather StatementBOULarimer44 min
Aug 3, 3:20 PM MDTSpecial Weather StatementBOUDenver40 min
Aug 3, 3:23 PM MDTSpecial Weather StatementBOUDouglas52 min
Aug 3, 3:34 PM MDTSevere Thunderstorm WarningBOUAdams, Denver41 min
Aug 3, 3:36 PM MDTSevere Thunderstorm WarningBOUAdams39 min
Aug 3, 3:59 PM MDTSevere Thunderstorm WarningBOULarimer46 min
Aug 3, 4:02 PM MDTSevere Thunderstorm WarningBOUElbert43 min
Aug 3, 4:24 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe51 min
Aug 3, 4:29 PM MDTSevere Thunderstorm WarningBOUWeld46 min
Aug 3, 4:45 PM MDTSpecial Weather StatementBOUElbert45 min
Aug 3, 4:46 PM MDTSpecial Weather StatementBOUWeld44 min
Aug 3, 4:54 PM MDTAreal Flood AdvisoryBOULarimer3 hr
Aug 3, 4:54 PM MDTSevere Thunderstorm WarningBOUElbert51 min
Aug 3, 4:57 PM MDTSevere Thunderstorm WarningBOUAdams48 min
Aug 3, 5:00 PM MDTSpecial Weather StatementBOUWeld45 min
Aug 3, 5:11 PM MDTSevere Thunderstorm WarningBOULarimer34 min
Aug 3, 5:17 PM MDTFlash Flood WarningBOULarimer104 min
Aug 3, 5:26 PM MDTSpecial Weather StatementBOUDenver49 min
Aug 3, 5:40 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln50 min
Aug 3, 5:43 PM MDTSevere Thunderstorm WarningBOULarimer, Weld47 min
Aug 3, 5:48 PM MDTSevere Thunderstorm WarningBOULincoln42 min

Nearby

Special Weather Statements in Colorado, 2023Every 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.