Alert archive / Colorado / Special Weather Statements in 2017

Special Weather Statement, NWS Pueblo, CO

August 15, 2017

NWS Pueblo, CO issued this special weather statement at Aug 15, 2017, 6:00 PM MDT. It was in force for 30 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 15, 2017, 6:00 PM MDT (00:00 UTC)
Expired
Aug 15, 2017, 6:30 PM MDT
In force
30 min
Issued by
NWS Pueblo, CO

The radar

The Pueblo radar (KPUX), 168 km from the middle of the area, began a volume at 00:03 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

Denver, CO (KDEN), launched 00:00Z, 0.0 hours before the alert went out and 306 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 00:00Z on 2017-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 467 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2017-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.193958Sfc1 km3 km6 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
467 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
2755 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this special weather statement went out at Aug 15, 3:03 PM MDT, 2 hours 57 minutes earlier.

Area forecast discussion, Aug 15, 3:03 PM MDT, 2 hours 57 minutes before
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Hazardous weather outlook, Aug 15, 11:48 AM MDT, 6 hours 12 minutes before
Hazardous Weather Outlook...CORRECTED
National Weather Service Pueblo CO
1148 AM MDT Tue Aug 15 2017

COZ058>089-093>099-161745-
Western Mosquito Range/East Lake County Above 11000 Ft-
Leadville Vicinity/Lake County Below 11000 Ft-
Eastern Sawatch Mountains above 11000 Ft-
Western Chaffee County Between 9000 and 11000 Ft-
Central Chaffee County Below 9000 Ft-
Western Mosquito Range/East Chaffee County above 9000Ft-
Saguache County West of Continental Divide Below 10000 Ft-
Saguache County East of Continental Divide below 10000 Ft-
La Garita Mountains Above 10000 Ft-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft-
Eastern San Juan Mountains Above 10000 Ft-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft-
Northern Sangre de Cristo Mountains above 11000 Ft-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Ft-
Southern Sangre de Cristo Mountains Above 11000 Ft-
Northwestern Fremont County  Above 8500Ft-
Western/Central Fremont County Below 8500 Ft-
Wet Mountain Valley Below 8500 Ft-
Wet Mountains between 6300 and 10000Ft-
Wet Mountains above 10000 Ft-
Teller County/Rampart Range above 7500fT/Pike's Peak Between
7500 And 11000 Ft-Pikes Peak above 11000 Ft-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Ft-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Ft-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
1148 AM MDT Tue Aug 15 2017

This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.

.DAY ONE...This Afternoon and Tonight

An upper level disturbance is expected to trigger a round of
thunderstorms over the southeastern plains of Colorado this
afternoon and evening, generally east of a line from Calhan to
Fowler, to Branson. To the east of this line, one or two storms
may become severe producing hail up to 1 inch in diameter and wind
gusts to around 60 mph. West of this line, drier air is expected
to result in relatively few storms today where the primary storm
threats will included locally heavy rain, small hail under 1/2
inch in diameter, and wind gusts to 50. Lightning will be threat
with all thunderstorms today.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Expect isolated to scattered thunderstorms each day. Storm
activity is expected to become more ties to the higher terrain
starting Saturday, and more sparse across the eastern plains. The
main threats from the storms will be small hail, gusty winds and
lightning.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
possible this afternoon and evening over the plains east of line
from Calhan to Fowler to Branson.

31/31

In the hours before

Special weather statement, Aug 15, 3:22 PM MDT, 2 hours 38 minutes before
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Special weather statement, Aug 15, 3:31 PM MDT, 2 hours 29 minutes before
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Special weather statement, Aug 15, 4:04 PM MDT, 1 hour 56 minutes before
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Special weather statement, Aug 15, 5:15 PM MDT, 45 minutes before
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Special weather statement, Aug 15, 5:27 PM MDT, 33 minutes before
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Special weather statement, Aug 15, 6:00 PM MDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 6:15 PM MDTSpecial Weather StatementPUBProwers30 min
Aug 15, 6:21 PM MDTSpecial Weather StatementPUBEl Paso39 min
Aug 15, 6:35 PM MDTSpecial Weather StatementPUBProwers25 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.