Alert archive / Colorado / Special Weather Statements in 2017

Special Weather Statement, NWS Pueblo, CO

May 7, 2017Huerfano County, Colorado

NWS Pueblo, CO issued this special weather statement at May 7, 2017, 2:20 PM MDT for Huerfano County, Colorado. It was in force for 55 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
May 7, 2017, 2:20 PM MDT (20:20 UTC)
Expired
May 7, 2017, 3:15 PM MDT
In force
55 min
Issued by
NWS Pueblo, CO

County Huerfano County, CO

The radar

The Pueblo radar (KPUX), 136 km from the middle of the area, began a volume at 20:19 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 12:00Z, 8.3 hours before the alert went out and 313 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 2017-05-07Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2017-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2902 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 May 7, 11:47 AM MDT, 2 hours 33 minutes earlier.

Area forecast discussion, May 7, 11:47 AM MDT, 2 hours 33 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, May 7, 11:34 AM MDT, 2 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1134 AM MDT Sun May 7 2017

COZ058>089-093>099-081745-
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-
1134 AM MDT Sun May 7 2017

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

.DAY ONE...Today and Tonight

Isolated non-severe thunderstorms expected over the region today,
with convective initiation occurring in the early afternoon. The
primary risks are lightning, wind gusts up to 40 mph, and hail up
to penny size.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

For Monday, widespread thunderstorms are expected to initiate
over the mountains in the early afternoon, then spread over the
rest of the region. Once the storms travel over the plains, they
will enter unstable and sheared environments capable of producing
lightning, strong winds, large hail, heavy rain, flash flooding over
burn scared areas, and could produce an isolated tornado or two.

For Tuesday, widespread thunderstorms are expected to initiate
over the mountains in the early afternoon. Primary concerns will
be lightning, strong winds, large hail, heavy rain, burn scar
flooding, and an isolated tornado or two. Additionally, snow
accumulation is likely over the mountains above 8,000 feet.

On Wednesday and Thursday, the upper level low propagates closer to
the region, likely bringing stratiform rain and non severe
thunderstorms. Primary concerns are lightning, small hail, and wind
gusts up to 40 mph.

The models are in decent agreement on the track of the upper level
low, but there is still uncertainty on the strength. Please stay up
to date with the latest forecast.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will
possible this afternoon and evening for the eastern mountains and
plains.

SKELLY/SKELLY

In the hours before

Special weather statement, May 7, 1:16 PM MDT, 1 hour 4 minutes before
Special Weather Statement
National Weather Service Pueblo CO
116 PM MDT SUN MAY 7 2017

COZ086-072015-
Pueblo Vicinity/Pueblo County Below 6300 Feet CO-
116 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PUEBLO COUNTY UNTIL 215
PM MDT...

At 113 PM MDT, Doppler radar was tracking a strong thunderstorm 14
miles south of Salt Creek, or 16 miles south of Pueblo, moving north
at 30 mph.

Dime size hail, wind gusts up to 50 mph, locally heavy rain and
lightning strikes are all possible with this storm.

Locations possibly impacted include...
Pueblo, Boone, Salt Creek,
Blende, Avondale, Pueblo Depot, Pinon, Pueblo West and Colorado City.

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.

&&

LAT...LON 3790 10464 3796 10480 3851 10466 3834 10416
TIME...MOT...LOC 1913Z 202DEG 28KT 3803 10465

LW
Special weather statement, May 7, 2:13 PM MDT, 7 minutes before
Special Weather Statement
National Weather Service Pueblo CO
213 PM MDT SUN MAY 7 2017

COZ076-077-079-081-083-072100-
Wet Mountains between 6300 and 10000Ft CO-
Western/Central Fremont County Below 8500 Ft CO-
Canon City Vicinity/Eastern Fremont County CO-
Teller County/Rampart Range above 7500fT/Pike's Peak Between 7500 And
11000 Ft CO-Northwestern Fremont County  Above 8500Ft CO-
213 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL FREMONT AND SOUTHWESTERN
TELLER COUNTIES UNTIL 300 PM MDT...

At 211 PM MDT, Doppler radar was tracking a strong thunderstorm near
Royal Gorge, or 42 miles southwest of Colorado Springs, moving north
at 15 mph.

Dime size hail, winds in excess of 40 mph, heavy rain and lightning
strikes will be possible with this storm.

Locations impacted include...
Royal Gorge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 3836 10531 3836 10554 3869 10560 3870 10533
      3872 10533 3872 10526
TIME...MOT...LOC 2011Z 179DEG 15KT 3844 10543

LW
Special weather statement, May 7, 2:20 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Pueblo CO
220 PM MDT SUN MAY 7 2017

COZ074-075-087-088-072115-
Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft CO-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft CO-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft CO-
Southern Sangre De Cristo Mountains Above 11000 Ft CO-
220 PM MDT SUN MAY 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HUERFANO AND WEST
CENTRAL LAS ANIMAS COUNTIES UNTIL 315 PM MDT...

At 219 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Spanish Peaks, or 24 miles west of Trinidad, moving
northeast at 30 mph.

Dime size hail, wind gusts up to 50 mph, locally heavy rain and
lightning strikes will be possible with this storm.

Locations impacted include...
Walsenburg, Aguilar, Gulnare and Spanish Peaks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 3715 10487 3725 10506 3769 10488 3753 10451
TIME...MOT...LOC 2019Z 209DEG 24KT 3728 10492

LW

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 6:08 PM MDTSpecial Weather StatementPUBFremont37 min
May 6, 6:45 PM MDTSpecial Weather StatementPUBTeller45 min
May 6, 7:41 PM MDTSpecial Weather StatementPUBEl Paso49 min
May 6, 8:25 PM MDTSpecial Weather StatementPUBEl Paso35 min
May 7, 1:16 PM MDTSpecial Weather StatementPUBPueblo59 min
May 7, 2:13 PM MDTSpecial Weather StatementPUBFremont47 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.