Alert archive / Colorado / Special Weather Statements in 2017

Special Weather Statement, NWS Pueblo, CO

August 8, 2017Rio Grande County, Colorado

NWS Pueblo, CO issued this special weather statement at Aug 8, 2017, 2:21 PM MDT for Rio Grande County, Colorado. It was in force for 24 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 8, 2017, 2:21 PM MDT (20:21 UTC)
Expired
Aug 8, 2017, 2:45 PM MDT
In force
24 min
Issued by
NWS Pueblo, CO

County Rio Grande County, CO

The radar

The Pueblo radar (KPUX), 203 km from the middle of the area, began a volume at 20:22 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, 8.4 hours before the alert went out and 256 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 2017-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2017-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
1 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

043 
WWUS85 KPUB 082021
SPSPUB

Special Weather Statement
National Weather Service Pueblo CO
221 PM MDT TUE AUG 8 2017
 
COZ065-067>070-082045-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft CO-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
Saguache County East of Continental Divide below 10000 Ft CO-
Eastern San Juan Mountains Above 10000 Ft CO-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft CO-
221 PM MDT TUE AUG 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN RIO GRANDE COUNTY UNTIL
245 PM MDT...

At 220 PM MDT, Doppler radar was tracking a strong thunderstorm near
Del Norte, or 28 miles northwest of Alamosa, moving southeast at 20
mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Monte Vista. 

LAT...LON 3774 10641 3774 10617 3755 10605 3744 10626
TIME...MOT...LOC 2020Z 330DEG 17KT 3772 10627 

$$

28

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 9:56 PM MDTAreal Flood AdvisoryPUBPueblo2 hr
Aug 8, 1:31 PM MDTSpecial Weather StatementPUBTeller59 min
Aug 8, 1:43 PM MDTSpecial Weather StatementPUBFremont62 min
Aug 8, 1:50 PM MDTSpecial Weather StatementPUBFremont25 min
Aug 8, 2:13 PM MDTSpecial Weather StatementPUBFremont62 min
Aug 8, 2:33 PM MDTSevere Thunderstorm WarningPUBCuster, Fremont, Pueblo57 min
Aug 8, 3:08 PM MDTSpecial Weather StatementPUBEl Paso37 min
Aug 8, 3:20 PM MDTSpecial Weather StatementPUBPueblo55 min
Aug 8, 3:44 PM MDTSevere Thunderstorm WarningPUBHuerfano, Las Animas, Otero, Pueblo31 min
Aug 8, 4:13 PM MDTSevere Thunderstorm WarningPUBHuerfano, Las Animas, Otero, Pueblo47 min
Aug 8, 4:22 PM MDTSpecial Weather StatementPUBBent38 min
Aug 8, 4:27 PM MDTSevere Thunderstorm WarningPUBBent, Prowers33 min
Aug 8, 4:43 PM MDTSevere Thunderstorm WarningPUBLas Animas47 min
Aug 8, 4:55 PM MDTSevere Thunderstorm WarningPUBBent, Prowers50 min
Aug 8, 5:22 PM MDTSevere Thunderstorm WarningPUBLas Animas38 min
Aug 8, 5:38 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Prowers52 min
Aug 8, 5:50 PM MDTTornado WarningPUBBaca, Bent25 min

Nearby

Special Weather Statements in Colorado, 2017Every special weather statement in 2017

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.