Alert archive / Colorado / Special Weather Statements in 2018

Special Weather Statement, NWS Pueblo, CO

July 4, 2018El Paso County, Colorado

NWS Pueblo, CO issued this special weather statement at Jul 4, 2018, 8:13 PM MDT for El Paso County, Colorado. It was in force for 17 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 4, 2018, 8:13 PM MDT (02:13 UTC)
Expired
Jul 4, 2018, 8:30 PM MDT
In force
17 min
Issued by
NWS Pueblo, CO

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 77 km from the middle of the area, began a volume at 02:15 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, 2.2 hours before the alert went out and 159 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 2018-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 647 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 2018-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
647 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
2796 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

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 Jul 4, 5:41 PM MDT, 2 hours 32 minutes earlier.

Area forecast discussion, Jul 4, 5:41 PM MDT, 2 hours 32 minutes before
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Hazardous weather outlook, Jul 4, 12:06 PM MDT, 8 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1206 PM MDT Wed Jul 4 2018

COZ058>089-093>099-051815-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Western/Central Fremont County Below 8500 Feet-
Wet Mountain Valley Below 8500 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
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-
1206 PM MDT Wed Jul 4 2018

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

.DAY ONE...This Afternoon and Tonight

Isolated to scattered thunderstorms will be possible this afternoon
and evening across El Paso county and parts of the far southeast
plains. One or two strong to severe storms will be possible,
particularly along and north of highway 50. Wind gusts up to 60
mph and quarter size hail will be the primary storm threats, along
with lightning and locally heavy rain.

Isolated high based thunderstorms will be possible across the
mountains this afternoon and evening. Localized wind gusts up to
50 mph and lightning will be the primary storm threats.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Thunderstorm chances will increase across the forecast area on
Thursday, with the most widespread coverage expected over the
mountains, and more isolated to scattered coverage over the
plains. Thunderstorm chances will decrease slightly on Friday, and
continue to decrease and shift west through the weekend. The
greatest threats from storms over the next few days will be
lightning, wind gusts to 50 mph, and heavy rain. Flash flooding
will be possible, mainly with any storms that develop over burn
scars and urban areas.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
possible late this afternoon and evening primarily across northern
El Paso County and the far southeast plains.

50/50

In the hours before

Special weather statement, Jul 4, 3:00 PM MDT, 5 hours 13 minutes before
Special Weather Statement
National Weather Service Pueblo CO
300 PM MDT WED JUL 4 2018

COZ099-042130-
Springfield Vicinity/Baca County CO-
300 PM MDT WED JUL 4 2018

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BACA COUNTY UNTIL 330 PM
MDT...

At 259 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles northeast of Campo, or 16 miles southeast of Springfield,
moving northeast at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Walsh, Vilas and Stonington.

LAT...LON 3708 10241 3721 10257 3755 10235 3734 10204
      3732 10204
TIME...MOT...LOC 2059Z 220DEG 21KT 3721 10246

mw
Special weather statement, Jul 4, 3:18 PM MDT, 4 hours 55 minutes before
Special Weather Statement
National Weather Service Pueblo CO
318 PM MDT WED JUL 4 2018

COZ098-099-042145-
Springfield Vicinity/Baca County CO-Lamar Vicinity/Prowers County CO-
318 PM MDT WED JUL 4 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN PROWERS AND NORTH
CENTRAL BACA COUNTIES UNTIL 345 PM MDT...

At 317 PM MDT, Doppler radar was tracking a strong thunderstorm near
Springfield, moving northeast at 30 mph.

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

Locations impacted include...
Springfield, Two Buttes and Two Buttes Reservoir.

LAT...LON 3734 10265 3753 10283 3795 10251 3768 10210
TIME...MOT...LOC 2117Z 226DEG 28KT 3749 10268

mw
Special weather statement, Jul 4, 3:30 PM MDT, 4 hours 43 minutes before
Special Weather Statement
National Weather Service Pueblo CO
330 PM MDT WED JUL 4 2018

COZ098-042200-
Lamar Vicinity/Prowers County CO-
330 PM MDT WED JUL 4 2018

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PROWERS COUNTY UNTIL
400 PM MDT...

At 329 PM MDT, Doppler radar was tracking a strong thunderstorm 16
miles south of Holly, or 17 miles south of Coolidge, moving northeast
at 25 mph.

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

Locations impacted include...
Holly.

LAT...LON 3770 10206 3781 10222 3809 10212 3806 10204
      3772 10204
TIME...MOT...LOC 2129Z 207DEG 16KT 3781 10212

mw
Special weather statement, Jul 4, 4:24 PM MDT, 3 hours 49 minutes before
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Special weather statement, Jul 4, 5:14 PM MDT, 2 hours 59 minutes before
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Special weather statement, Jul 4, 8:13 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
Jul 4, 8:38 PM MDTSpecial Weather StatementPUBEl Paso22 min
Jul 4, 8:45 PM MDTSpecial Weather StatementPUBEl Paso15 min
Jul 4, 9:02 PM MDTSpecial Weather StatementPUBEl Paso13 min
Jul 4, 9:29 PM MDTSpecial Weather StatementPUBChaffee31 min
Jul 4, 9:45 PM MDTSpecial Weather StatementPUBChaffee15 min
Jul 4, 9:58 PM MDTSpecial Weather StatementPUBEl Paso17 min
Jul 5, 11:17 AM MDTSpecial Weather StatementPUBBaca43 min
Jul 5, 3:02 PM MDTFlash Flood WarningPUBCostilla, Huerfano5 hr
Jul 5, 3:46 PM MDTFlash Flood WarningPUBCuster, Fremont103 min
Jul 5, 4:59 PM MDTSpecial Weather StatementPUBTeller31 min

Nearby

Special Weather Statements in Colorado, 2018Every special weather statement in 2018

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.