Alert archive / Colorado / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 61, NWS Pueblo, CO

June 30, 2011Chaffee County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jun 30, 2011, 1:16 PM MDT for Chaffee County, Colorado. It was in force for 22 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 30, 2011, 1:16 PM MDT (19:16 UTC)
Expired: Jun 30, 2011, 1:38 PM MDT
In force: 22 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Chaffee County, CO

The radar

The Denver radar (KFTG), 164 km from the middle of the area, began a volume at 19:16 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 30, 1:16 PM MDT	TSTM WND GST 62	2 S Buena Vista, CO	MEASURED AT KAEJ
Jun 30, 1:20 PM MDT	TSTM WND GST 62	2 S Buena Vista, CO

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 12:18 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 7.3 hours before the alert went out and 217 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: 28 J/kg
Mixed-layer CIN: -222 J/kg
Mixed-layer LCL: 2557 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

324 
WUUS55 KPUB 301916
SVRPUB
COC015-302015-
/O.NEW.KPUB.SV.W.0061.110630T1916Z-110630T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
116 PM MDT THU JUN 30 2011

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CHAFFEE COUNTY IN CENTRAL COLORADO...

* UNTIL 215 PM MDT

* AT 114 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BUENA VISTA...OR 49 MILES EAST OF GUNNISON...AND MOVING NORTHEAST
  AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN CHAFFEE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

&&

LAT...LON 3894 10608 3894 10601 3891 10596 3888 10595
      3888 10592 3879 10589 3874 10594 3870 10594
      3867 10609 3884 10628 3899 10610
TIME...MOT...LOC 1916Z 225DEG 35KT 3882 10607
WIND...HAIL 60MPH 1.00IN

$$

KAM

2 follow-up statements

847 
WWUS55 KPUB 301929
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
129 PM MDT THU JUN 30 2011

COC015-302015-
/O.CON.KPUB.SV.W.0061.000000T0000Z-110630T2015Z/
CHAFFEE CO-
129 PM MDT THU JUN 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
CHAFFEE COUNTY UNTIL 215 PM MDT...

AT 126 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 9 MILES SOUTHWEST OF ANTERO
RESERVOIR...OR 56 MILES NORTHEAST OF GUNNISON...MOVING NORTHEAST AT
40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
THURSDAY EVENING FOR CENTRAL COLORADO.

LAT...LON 3870 10595 3887 10621 3899 10610 3894 10608
      3894 10601 3891 10596 3888 10595 3888 10592
      3879 10589 3874 10594 3870 10594
TIME...MOT...LOC 1929Z 225DEG 35KT 3891 10595
WIND...HAIL 60MPH 0.75IN

$$

KAM

986 
WWUS55 KPUB 301938
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
138 PM MDT THU JUN 30 2011

COC015-301949-
/O.CAN.KPUB.SV.W.0061.000000T0000Z-110630T2015Z/
CHAFFEE CO-
138 PM MDT THU JUN 30 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHAFFEE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
THURSDAY EVENING FOR CENTRAL COLORADO.

LAT...LON 3870 10595 3887 10621 3899 10610 3894 10608
      3894 10601 3891 10596 3888 10595 3888 10592
      3879 10589 3874 10594 3870 10594
TIME...MOT...LOC 1939Z 225DEG 35KT 3898 10586

$$

KAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 1:25 PM MDT	Severe Thunderstorm Warning	PUB	Chaffee, Fremont, Saguache	50 min
Jun 30, 2:12 PM MDT	Severe Thunderstorm Warning	PUB	Chaffee, Fremont, Saguache	48 min
Jun 30, 3:37 PM MDT	Severe Thunderstorm Warning	PUB	Custer, Fremont, Saguache	38 min
Jun 30, 3:43 PM MDT	Severe Thunderstorm Warning	PUB	Chaffee, Fremont, Saguache	47 min
Jun 30, 4:30 PM MDT	Severe Thunderstorm Warning	PUB	Chaffee	45 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2011 Every severe thunderstorm warning in 2011

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.