Alert archive / Colorado / Special Weather Statements in 2021

Special Weather Statement, NWS Pueblo, CO

July 21, 2021Conejos County, Colorado

NWS Pueblo, CO issued this special weather statement at Jul 21, 2021, 1:21 PM MDT for Conejos County, Colorado. It was in force for 54 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, 1:21 PM MDT (19:21 UTC)
Expired
Jul 21, 2021, 2:15 PM MDT
In force
54 min
Issued by
NWS Pueblo, CO

County Conejos County, CO

The radar

The Albuquerque radar (KABX), 227 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 237 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 2021-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 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 2021-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
53 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1518 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

613 
WWUS85 KPUB 211921
SPSPUB

Special Weather Statement
National Weather Service Pueblo CO
121 PM MDT Wed Jul 21 2021
 
COZ067-068-212015-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft CO-
Eastern San Juan Mountains Above 10000 Ft CO-
121 PM MDT Wed Jul 21 2021


At 120 PM MDT, Doppler radar was tracking a strong thunderstorm 13 
miles north of Chama, moving southwest at 5 mph. Around 1.5" of rain 
fallen has been derived from radar. Enhanced flow in streams is 
possible in the eastern San Juans in Conejos County. 

Locations impacted include...
Cumbres Pass and Platoro. 

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 3700 10648 3714 10659 3719 10660 3723 10668
      3728 10668 3738 10666 3739 10642 3699 10637
TIME...MOT...LOC 1920Z 026DEG 5KT 3707 10651 

$$

KTS

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, 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, 5:01 PM MDTSpecial Weather StatementPUBSaguache44 min
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.