Alert archive / Colorado / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 95, NWS Pueblo, CO

June 20, 2017Baca County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jun 20, 2017, 5:07 PM MDT for Baca County, Colorado. It was in force for 38 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 20, 2017, 5:07 PM MDT (23:07 UTC)
Expired: Jun 20, 2017, 5:45 PM MDT
In force: 38 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Baca County, CO

The radar

The Pueblo radar (KPUX), 205 km from the middle of the area, began a volume at 23:09 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.

What was reported inside it

Time	Report	Where	Remark
Jun 20, 5:32 PM MDT	HAIL 1	Campo, CO
Jun 20, 5:41 PM MDT	HAIL 1.25	Campo, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.1 hours before the alert went out and 221 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1342 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 819 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

163 
WUUS55 KPUB 202307
SVRPUB
COC009-202345-
/O.NEW.KPUB.SV.W.0095.170620T2307Z-170620T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pueblo CO
507 PM MDT TUE JUN 20 2017

The National Weather Service in Pueblo has issued a

* Severe Thunderstorm Warning for...
  South central Baca County in southeastern Colorado...

* Until 545 PM MDT

* At 507 PM MDT, a severe thunderstorm was located near Campo, or 21
  miles south of Springfield, moving southeast at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Campo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3700 10278 3712 10285 3725 10268 3700 10235
      3699 10255
TIME...MOT...LOC 2307Z 302DEG 14KT 3711 10270 

HAIL...1.00IN
WIND...60MPH
 
$$

KT

2 follow-up statements

320 
WWUS55 KPUB 202319
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
519 PM MDT TUE JUN 20 2017

COC009-202345-
/O.CON.KPUB.SV.W.0095.000000T0000Z-170620T2345Z/
Baca CO-
519 PM MDT TUE JUN 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR SOUTH CENTRAL BACA COUNTY...

At 519 PM MDT, a severe thunderstorm was located near Campo, or 22
miles south of Springfield, moving southeast at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Campo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3700 10277 3711 10280 3721 10266 3700 10235
      3699 10255
TIME...MOT...LOC 2319Z 312DEG 11KT 3708 10266 

HAIL...1.00IN
WIND...60MPH
 
$$

KT

819 
WWUS55 KPUB 202334
SVSPUB

Severe Weather Statement
National Weather Service Pueblo CO
534 PM MDT TUE JUN 20 2017

COC009-202345-
/O.CON.KPUB.SV.W.0095.000000T0000Z-170620T2345Z/
Baca CO-
534 PM MDT TUE JUN 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR SOUTH CENTRAL BACA COUNTY...

At 534 PM MDT, a severe thunderstorm was located over Campo, or 20
miles south of Springfield, moving southeast at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Campo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3700 10274 3709 10278 3719 10263 3700 10235
      3699 10255
TIME...MOT...LOC 2334Z 314DEG 15KT 3710 10263 

HAIL...1.00IN
WIND...60MPH
 
$$

KT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 3:05 PM MDT	Special Weather Statement	PUB	Las Animas	40 min
Jun 20, 3:41 PM MDT	Special Weather Statement	PUB	Las Animas	49 min
Jun 20, 4:01 PM MDT	Special Weather Statement	PUB	Conejos	44 min
Jun 20, 4:14 PM MDT	Special Weather Statement	PUB	Baca	46 min
Jun 20, 4:48 PM MDT	Special Weather Statement	PUB	Baca	42 min
Jun 20, 4:59 PM MDT	Severe Thunderstorm Warning	PUB	Baca	46 min
Jun 20, 5:45 PM MDT	Severe Thunderstorm Warning	PUB	Baca	30 min
Jun 20, 5:52 PM MDT	Severe Thunderstorm Warning	PUB	Baca	38 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.