Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Pueblo, CO

July 21, 2021Saguache County, Colorado

NWS Pueblo, CO issued this special weather statement at Jul 21, 2021, 5:01 PM MDT for Saguache County, Colorado. It was in force for 44 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
Jul 21, 2021, 5:01 PM MDT (23:01 UTC)
Expired
Jul 21, 2021, 5:45 PM MDT
In force
44 min
Issued by
NWS Pueblo, CO

County Saguache County, CO

The radar

The Pueblo radar (KPUX), 176 km from the middle of the area, began a volume at 23:03 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

Grand Junction, CO (KGJT), launched 12:00Z, 11.0 hours before the alert went out and 247 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, Grand Junction, CO at 12:00Z on 2021-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Grand Junction, CO at 12:00Z on 2021-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
6 J/kg
Mixed-layer CIN
-283 J/kg
Mixed-layer LCL
2031 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

284 
WWUS85 KPUB 212301
SPSPUB

Special Weather Statement
National Weather Service Pueblo CO
501 PM MDT Wed Jul 21 2021
 
COZ069-212345-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
501 PM MDT Wed Jul 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL SAGUACHE COUNTY
UNTIL 545 PM MDT...

At 500 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles northeast of La Garita, or 31 miles southwest of Hayden Pass
Burn Scar, moving south at 15 mph.

Pea size hail and wind gusts up to 50 mph will be possible with this 
storm along with torrential rainfall.  Radar estimates up to 2 
inches per hour with this storm. 

This storm will remain over mainly rural areas of south central
Saguache County east of highway 285.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3804 10615 3801 10594 3780 10599 3787 10623
TIME...MOT...LOC 2300Z 021DEG 13KT 3792 10609 

$$

KT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 7:03 PM MDTSpecial Weather StatementPUBChaffee12 min
Jul 21, 2:57 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more19 hr
Jul 21, 1:14 PM MDTSpecial Weather StatementPUBCostilla61 min
Jul 21, 1:21 PM MDTSpecial Weather StatementPUBConejos54 min
Jul 21, 2:02 PM MDTFlash Flood Warning Considerable damage threatPUBChaffee3 hr
Jul 21, 2:25 PM MDTSpecial Weather StatementPUBAlamosa35 min
Jul 21, 2:34 PM MDTSpecial Weather StatementPUBMineral56 min
Jul 21, 2:59 PM MDTSpecial Weather StatementPUBTeller46 min
Jul 21, 3:38 PM MDTFlash Flood Warning Considerable damage threatPUBFremont2 hr
Jul 21, 3:40 PM MDTSpecial Weather StatementPUBCuster35 min
Jul 21, 3:44 PM MDTSevere Thunderstorm WarningPUBCuster33 min
Jul 21, 3:57 PM MDTSpecial Weather StatementPUBTeller48 min
Jul 21, 4:08 PM MDTFlash Flood Warning Considerable damage threatPUBCuster3 hr
Jul 21, 5:43 PM MDTSpecial Weather StatementPUBEl Paso47 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.