Alert archive / Colorado / Special Weather Statements in 2020

Special Weather Statement, NWS Pueblo, CO

July 21, 2020El Paso County, Colorado

NWS Pueblo, CO issued this special weather statement at Jul 21, 2020, 4:51 PM MDT for El Paso 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
Jul 21, 2020, 4:51 PM MDT (22:51 UTC)
Expired
Jul 21, 2020, 5:15 PM MDT
In force
24 min
Issued by
NWS Pueblo, CO

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 48 km from the middle of the area, began a volume at 22:54 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, 10.9 hours before the alert went out and 135 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 2020-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 686 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 12:00Z on 2020-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 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
686 J/kg
Mixed-layer CIN
-192 J/kg
Mixed-layer LCL
1080 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 21, 3:51 PM MDT, 1 hour earlier.

Area forecast discussion, Jul 21, 3:51 PM MDT, 1 hour before
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Hazardous weather outlook, Jul 21, 11:43 AM MDT, 5 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1143 AM MDT Tue Jul 21 2020

COZ058>089-093>099-221745-
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-
1143 AM MDT Tue Jul 21 2020

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

.DAY ONE...This Afternoon and Tonight

Severe thunderstorms will be possible along the I-25 corridor from
Monument south to Walsenburg, and eastward out to the La Junta
area. Hail up to the size of golfballs is possible, especially
across El Paso County. Wind gusts to 65 mph will also be possible.

Over the remainder of the area, scattered thunderstorms will be
possible, with hail up to the size of nickels and wind gust to 50
mph.

Rains capable of producing local flash flooding will be possible
across the Pikes Peak region today.

The greatest risk of severe thunderstorms and flash flooding in the
Pikes Peak region will be between 4 pm and 7 pm.

With monsoonal moisture on the increase, local areas of heavy
rain will be possible in the mountains, especially along the
Continental Divide. Any thunderstorm that develops over a burn
scar could cause flash flooding.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

For Wednesday through Monday, there will be daily chances of
afternoon and evening thunderstorms across all of south central
and southeast Colorado. The best coverage of storms will be over
and near the higher terrain through the afternoon hours, with some
storms spreading east across the far southeast plains through the
late afternoon and evening. With generally weak steering flow
aloft, storms will be slow moving and capable of producing locally
heavy rainfall. This will also lead to the potential for flash
flooding, especially for area burn scars. Other storm risks will
be frequent cloud to ground lightning, with small hail and gusty
outflow winds to around 45 mph possible with the strongest storms.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
likely this afternoon and early evening for areas along the I-25
corridor from Walsenburg to Monument, and eastward out to the La
Junta area.

29/27

In the hours before

Special weather statement, Jul 21, 3:09 PM MDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Pueblo CO
309 PM MDT Tue Jul 21 2020

COZ088-094-212200-
Eastern Las Animas County CO-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft CO-
309 PM MDT Tue Jul 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL LAS ANIMAS COUNTY
UNTIL 400 PM MDT...

At 309 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Model, or 22 miles east of Trinidad, moving north
at 10 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This storm will remain over mainly rural areas of south central Las
Animas County.

LAT...LON 3708 10403 3717 10428 3742 10417 3730 10379
TIME...MOT...LOC 2109Z 201DEG 10KT 3722 10409

Rodriguez
Special weather statement, Jul 21, 3:33 PM MDT, 1 hour 18 minutes before
Special Weather Statement
National Weather Service Pueblo CO
333 PM MDT Tue Jul 21 2020

COZ081-084-085-212200-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below
7400 Ft CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-
Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Ft
CO-
333 PM MDT Tue Jul 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN TELLER AND WEST
CENTRAL EL PASO COUNTIES UNTIL 400 PM MDT...

At 333 PM MDT, Doppler radar was tracking a strong thunderstorm over
Manitou Springs, or near Colorado Springs, moving southeast at 15
mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Colorado Springs, Manitou Springs, Stratmoor, Peterson AFB, Cimarron
Hills, Fort Carson, Cascade and Security-Widefield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
central and east central Colorado.

LAT...LON 3884 10501 3896 10491 3889 10462 3869 10483
TIME...MOT...LOC 2133Z 302DEG 14KT 3885 10490

29
Local storm report, Jul 21, 3:41 PM MDT, 1 hour 10 minutes before
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Special weather statement, Jul 21, 4:24 PM MDT, 27 minutes before
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Special weather statement, Jul 21, 4:36 PM MDT, 15 minutes before
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Special weather statement, Jul 21, 4:51 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 20, 6:06 PM MDTSpecial Weather StatementPUB24 min
Jul 20, 6:18 PM MDTSevere Thunderstorm WarningPUBBent, Prowers42 min
Jul 20, 6:21 PM MDTSevere Thunderstorm WarningPUBBaca, Las Animas39 min
Jul 20, 6:58 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Las Animas35 min
Jul 20, 7:02 PM MDTSpecial Weather StatementPUBProwers28 min
Jul 20, 7:32 PM MDTSpecial Weather StatementPUBProwers28 min
Jul 20, 8:15 PM MDTSpecial Weather StatementPUBBaca, Prowers30 min
Jul 20, 8:29 PM MDTSpecial Weather StatementPUBBaca31 min
Jul 21, 1:07 PM MDTSpecial Weather StatementPUBCuster23 min
Jul 21, 1:53 PM MDTFlash Flood Warning Considerable damage threatPUBCostilla, Huerfano119 min
Jul 21, 2:20 PM MDTSpecial Weather StatementPUBLas Animas25 min
Jul 21, 2:24 PM MDTSpecial Weather StatementPUBTeller36 min
Jul 21, 2:30 PM MDTSpecial Weather StatementPUBCuster45 min
Jul 21, 2:54 PM MDTSevere Thunderstorm WarningPUBEl Paso, Teller23 min
Jul 21, 3:09 PM MDTSpecial Weather StatementPUBLas Animas51 min
Jul 21, 3:12 PM MDTSevere Thunderstorm WarningPUBLas Animas48 min
Jul 21, 3:33 PM MDTSpecial Weather StatementPUBEl Paso27 min
Jul 21, 4:24 PM MDTSpecial Weather StatementPUBEl Paso36 min
Jul 21, 4:36 PM MDTSpecial Weather StatementPUBCuster24 min
Jul 21, 5:06 PM MDTSpecial Weather StatementPUBHuerfano24 min
Jul 21, 5:17 PM MDTSpecial Weather StatementPUBPueblo13 min
Jul 21, 5:18 PM MDTSpecial Weather StatementPUBCrowley27 min
Jul 21, 5:37 PM MDTFlash Flood WarningPUBPueblo113 min
Jul 21, 5:58 PM MDTSpecial Weather StatementPUBPueblo17 min

Nearby

Special Weather Statements in Colorado, 2020Every special weather statement in 2020

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.