Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Pueblo, CO

August 3, 2021Costilla County, Colorado

NWS Pueblo, CO issued this special weather statement at Aug 3, 2021, 4:18 PM MDT for Costilla County, Colorado. It was in force for 42 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, 2021, 4:18 PM MDT (22:18 UTC)
Expired
Aug 3, 2021, 5:00 PM MDT
In force
42 min
Issued by
NWS Pueblo, CO

County Costilla County, CO

The radar

The Pueblo radar (KPUX), 142 km from the middle of the area, began a volume at 22:20 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

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 10.3 hours before the alert went out and 295 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, Albuquerq/Krtlnd, NM at 12:00Z on 2021-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 153 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albuquerq/Krtlnd, NM at 12:00Z on 2021-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
153 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1388 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

964 
WWUS85 KPUB 032218
SPSPUB

Special Weather Statement
National Weather Service Pueblo CO
418 PM MDT Tue Aug 3 2021
 
COZ071-072-074-075-087-032300-
Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft CO-
Southern San Luis Valley CO-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft CO-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft CO-
Southern Sangre De Cristo Mountains Above 11000 Ft CO-
418 PM MDT Tue Aug 3 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL HUERFANO...
NORTHEASTERN COSTILLA AND WESTERN LAS ANIMAS COUNTIES UNTIL 500 PM
MDT...

At 417 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles west of Spring Burn Scar south of
Highway 160 in Costilla county to near Cuchara. Movement was east at
10 mph.

Winds in excess of 40 mph, and torrential rainfall will be possible 
with these storms. Localized flash flooding will be possible. 

Locations impacted include...
Spring Burn Scar south of Highway 160 in Costilla county, Indian
Creek on the southeastern Spring Burn Scar, Spring Burn Scar south of
Highway 160 in Huerfano county, Cuchara and Cuchara Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3752 10506 3729 10492 3730 10526 3753 10545
TIME...MOT...LOC 2217Z 289DEG 10KT 3748 10532 3732 10513 

$$

KT

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 6:47 PM MDTFlash Flood Warning Considerable damage threatPUBHuerfano2 hr
Aug 2, 7:38 PM MDTFlash Flood Warning Considerable damage threatPUBHuerfano96 min
Aug 2, 9:04 PM MDTSpecial Weather StatementPUBChaffee56 min
Aug 3, 12:46 PM MDTSpecial Weather StatementPUBEl Paso29 min
Aug 3, 12:56 PM MDTSpecial Weather StatementPUBHuerfano34 min
Aug 3, 1:20 PM MDTSpecial Weather StatementPUBEl Paso40 min
Aug 3, 1:48 PM MDTSpecial Weather StatementPUBCuster27 min
Aug 3, 1:58 PM MDTSpecial Weather StatementPUBHuerfano32 min
Aug 3, 2:07 PM MDTSpecial Weather StatementPUBEl Paso38 min
Aug 3, 2:12 PM MDTSpecial Weather StatementPUBCuster33 min
Aug 3, 2:28 PM MDTSpecial Weather StatementPUBHuerfano32 min
Aug 3, 2:30 PM MDTSpecial Weather StatementPUBLas Animas45 min
Aug 3, 2:48 PM MDTSpecial Weather StatementPUBPueblo27 min
Aug 3, 2:52 PM MDTSpecial Weather StatementPUBEl Paso38 min
Aug 3, 3:32 PM MDTSpecial Weather StatementPUBChaffee43 min
Aug 3, 3:38 PM MDTSpecial Weather StatementPUBPueblo37 min
Aug 3, 4:14 PM MDTSpecial Weather StatementPUBAlamosa31 min
Aug 3, 4:25 PM MDTSpecial Weather StatementPUBFremont65 min
Aug 3, 4:28 PM MDTSpecial Weather StatementPUBLas Animas32 min
Aug 3, 4:46 PM MDTFlash Flood WarningPUBCostilla3 hr
Aug 3, 4:51 PM MDTSpecial Weather StatementPUBTeller39 min
Aug 3, 4:57 PM MDTSpecial Weather StatementPUBPueblo33 min
Aug 3, 5:08 PM MDTSpecial Weather StatementPUBFremont52 min
Aug 3, 5:13 PM MDTFlash Flood WarningPUBPueblo3 hr
Aug 3, 5:26 PM MDTFlash Flood WarningPUBTeller109 min
Aug 3, 5:31 PM MDTSpecial Weather StatementPUBFremont44 min

Nearby

Special Weather Statements in Colorado, 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.