Alert archive / Colorado / Blowing Dust Warnings in 2021

Blowing Dust Warning 2, NWS Pueblo, CO

April 9, 2021Bent County, Prowers County, Colorado

NWS Pueblo, CO issued this blowing dust warning at Apr 9, 2021, 11:12 AM MDT for Bent County, Prowers County, Colorado. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 9, 2021, 11:12 AM MDT (17:12 UTC)
Expired
Apr 9, 2021, 2:50 PM MDT
In force
4 hr
Issued by
NWS Pueblo, CO

Counties Bent County, CO, Prowers County, CO

The radar

The Pueblo radar (KPUX), 138 km from the middle of the area, began a volume at 17:13 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

Denver, CO (KDNR), launched 12:00Z, 5.2 hours before the alert went out and 217 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, Denver, CO at 12:00Z on 2021-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -59 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1502 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-59 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

708 
WWUS75 KPUB 091712
NPWPUB

URGENT - WEATHER MESSAGE
National Weather Service Pueblo CO
1112 AM MDT Fri Apr 9 2021

COZ097-098-092100-
/O.NEW.KPUB.DU.W.0002.210409T1712Z-210409T2100Z/
Las Animas Vicinity/Bent County-Lamar Vicinity/Prowers County-
1112 AM MDT Fri Apr 9 2021

...BLOWING DUST WARNING IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON...

* WHAT...Visibility less than one quarter mile in blowing dust.
  Winds will gust to 40 to 60 mph. 

* WHERE...Highway 50 in Bent and Prowers counties. 

* WHEN...Until 3 PM MDT this afternoon.

* IMPACTS...Severely limited visibilities are expected. Travel 
  will be dangerous and possibly life-threatening.

* ADDITIONAL DETAILS...Satellite imagery continues to show blowing
  dust increasing across the Lower Arkansas River Valley.
  Visibility will be reduced at times to less than 1/4 of a mile.
  Drivers on highway 50 should be prepared for difficult driving
  conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. If you encounter blowing dust or blowing
sand on the roadway or see it approaching, pull off the road as
far as possible and put your vehicle in park. Turn the lights all
the way off and keep your foot off the brake pedal. Remember,
Pull Aside, Stay Alive.

&&

$$

Hodanish
1 follow-up statement
367 
WWUS75 KPUB 092050
NPWPUB

URGENT - WEATHER MESSAGE
National Weather Service Pueblo CO
250 PM MDT Fri Apr 9 2021

COZ097-098-092200-
/O.CAN.KPUB.DU.W.0002.000000T0000Z-210409T2100Z/
Las Animas Vicinity/Bent County-Lamar Vicinity/Prowers County-
250 PM MDT Fri Apr 9 2021

...BLOWING DUST WARNING IS CANCELLED...

North to northeast winds at 20 to 30 mph, with gusts up to 40 mph,
will linger across the eastern plains this afternoon. However, the
higher wind gusts have diminished, and severe visibility 
restrictions due to blowing dust are no longer being reported.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 8:16 PM MDTRed Flag WarningPUBAlamosa, Conejos, Costilla, Fremont, Pueblo, Rio Grande and 1 more24 hr

Nearby

Blowing Dust Warnings in Colorado, 2021Every blowing dust warning 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.