Alert archive / Colorado / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 97, NWS Pueblo, CO

June 20, 2017Baca County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jun 20, 2017, 5:52 PM MDT for Baca County, Colorado. It was in force for 38 min. 1 report 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, 5:52 PM MDT (23:52 UTC)
Expired: Jun 20, 2017, 6:30 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 Dodge City radar (KDDC), 197 km from the middle of the area, began a volume at 23:52 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, 6:30 PM MDT	HAIL 1.75	8 Ne Stonington, CO

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

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 11.9 hours before the alert went out and 203 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: 698 J/kg
Mixed-layer CIN: -190 J/kg
Mixed-layer LCL: 1238 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

222 
WUUS55 KPUB 202352
SVRPUB
COC009-210030-
/O.NEW.KPUB.SV.W.0097.170620T2352Z-170621T0030Z/

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

The National Weather Service in Pueblo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Baca County in southeastern Colorado...

* Until 630 PM MDT

* At 552 PM MDT, a severe thunderstorm was located near The Saunders
  Elevator, moving southeast at 10 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. 

* This severe thunderstorm will remain over mainly rural areas of
  northeastern Baca County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3742 10230 3760 10218 3757 10204 3724 10205
TIME...MOT...LOC 2352Z 298DEG 7KT 3745 10213 

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

KT

2 follow-up statements

773 
WWUS55 KPUB 210009
SVSPUB

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

COC009-210030-
/O.CON.KPUB.SV.W.0097.000000T0000Z-170621T0030Z/
Baca CO-
609 PM MDT TUE JUN 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MDT
FOR NORTHEASTERN BACA COUNTY...

At 609 PM MDT, a severe thunderstorm was located near The Saunders
Elevator, moving southeast at 15 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

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

This severe thunderstorm will remain over mainly rural areas of
northeastern Baca County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3742 10230 3760 10218 3757 10204 3724 10205
TIME...MOT...LOC 0009Z 300DEG 11KT 3746 10216 

HAIL...1.25IN
WIND...60MPH
 
$$

KT

785 
WWUS55 KPUB 210022
SVSPUB

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

COC009-210030-
/O.CON.KPUB.SV.W.0097.000000T0000Z-170621T0030Z/
Baca CO-
622 PM MDT TUE JUN 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MDT
FOR NORTHEASTERN BACA COUNTY...

At 621 PM MDT, a severe thunderstorm was located near The Saunders
Elevator, moving southeast at 10 mph.

HAZARD...60 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

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

This severe thunderstorm will remain over mainly rural areas of
northeastern Baca County east of Walsh along Highway 160.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3740 10226 3758 10215 3754 10204 3724 10205
      3727 10209
TIME...MOT...LOC 0021Z 298DEG 7KT 3745 10213 

HAIL...1.25IN
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, 5:07 PM MDT	Severe Thunderstorm Warning	PUB	Baca	38 min
Jun 20, 5:45 PM MDT	Severe Thunderstorm Warning	PUB	Baca	30 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.