Alert archive / Colorado / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 4, NWS Pueblo, CO

May 18, 20114 counties in Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at May 18, 2011, 4:53 PM MDT for 4 counties in Colorado. It was in force for 67 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: May 18, 2011, 4:53 PM MDT (22:53 UTC)
Expired: May 18, 2011, 6:00 PM MDT
In force: 67 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bent County, CO, Crowley County, CO, Kiowa County, CO, Otero County, CO

The radar

The Pueblo radar (KPUX), 44 km from the middle of the area, began a volume at 22:53 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
May 18, 5:32 PM MDT	HAIL 0.88	9 Wsw Arlington, CO
May 18, 5:58 PM MDT	TORNADO	5 Wsw Haswell, CO	STORM CHASER NOTED BRIEF LANDSPOUT.

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

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.9 hours before the alert went out and 181 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: 19 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 625 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 99 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.

779 
WUUS55 KPUB 182253
SVRPUB
COC011-025-061-089-190000-
/O.NEW.KPUB.SV.W.0004.110518T2253Z-110519T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
453 PM MDT WED MAY 18 2011

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BENT COUNTY IN SOUTHEAST COLORADO...
  CROWLEY COUNTY IN SOUTHEAST COLORADO...
  SOUTHWESTERN KIOWA COUNTY IN SOUTHEAST COLORADO...
  NORTHERN OTERO COUNTY IN SOUTHEAST COLORADO...

* UNTIL 600 PM MDT

* AT 449 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 5 MILES
  SOUTH OF SUGAR CITY...OR 14 MILES NORTHWEST OF LA JUNTA...AND
  MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CHERAW...SUGAR CITY AND ARLINGTON.

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.

&&

LAT...LON 3829 10403 3851 10394 3851 10319 3826 10319
      3804 10364 3809 10405
TIME...MOT...LOC 2254Z 223DEG 26KT 3818 10363
WIND...HAIL 60MPH 1.00IN

$$

4 follow-up statements

189 
WWUS55 KPUB 182304
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
504 PM MDT WED MAY 18 2011

COC011-025-061-089-190000-
/O.CON.KPUB.SV.W.0004.000000T0000Z-110519T0000Z/
OTERO CO-CROWLEY CO-BENT CO-KIOWA CO-
504 PM MDT WED MAY 18 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
KIOWA...NORTHWESTERN BENT...CROWLEY AND NORTHERN OTERO COUNTIES UNTIL
600 PM MDT...

AT 502 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
SUGAR CITY...OR 17 MILES NORTH OF LA JUNTA...MOVING NORTHEAST AT 30
MPH.

ROTATION ALOFT WITH THIS STORM WAS INCREASING.

OTHER STRONG STORMS WERE LOCATED IN CROWLEY COUNTY JUST NORTHWEST OF 
OLNEY SPRINGS.

LOCATIONS IMPACTED INCLUDE...
  ARLINGTON.

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.

&&

LAT...LON 3829 10403 3851 10394 3851 10319 3826 10319
      3804 10364 3809 10405
TIME...MOT...LOC 2303Z 223DEG 26KT 3823 10357
WIND...HAIL 60MPH 1.00IN

$$



HODANISH

964 
WWUS55 KPUB 182311
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
511 PM MDT WED MAY 18 2011

COC011-025-061-089-190000-
/O.CON.KPUB.SV.W.0004.000000T0000Z-110519T0000Z/
OTERO CO-CROWLEY CO-BENT CO-KIOWA CO-
511 PM MDT WED MAY 18 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
KIOWA...NORTHWESTERN BENT...CROWLEY AND NORTHERN OTERO COUNTIES UNTIL
600 PM MDT...

AT 506 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 8
MILES EAST OF SUGAR CITY...OR 18 MILES NORTH OF LA JUNTA...MOVING
NORTHEAST AT 30 MPH.

ROTATION WITH THIS STORM CONTINUES TO INCREASE. REMEMBER...SEVERE 
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING. 

LOCATIONS IMPACTED INCLUDE...
  ARLINGTON.

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.

&&

LAT...LON 3829 10403 3851 10394 3851 10319 3826 10319
      3804 10364 3809 10405
TIME...MOT...LOC 2310Z 223DEG 26KT 3826 10350
WIND...HAIL 70MPH 1.00IN

$$

602 
WWUS55 KPUB 182315
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
515 PM MDT WED MAY 18 2011

COC011-025-061-089-190000-
/O.CON.KPUB.SV.W.0004.000000T0000Z-110519T0000Z/
OTERO CO-CROWLEY CO-BENT CO-KIOWA CO-
515 PM MDT WED MAY 18 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
KIOWA...NORTHWESTERN BENT...CROWLEY AND EXTREME NORTHEASTERN OTERO
COUNTIES UNTIL 600 PM MDT...

AT 510 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 9
MILES NORTH OF CHERAW...OR 18 MILES NORTH OF LA JUNTA...MOVING
NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ARLINGTON.

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.

&&

LAT...LON 3814 10356 3823 10379 3827 10403 3829 10403
      3851 10394 3851 10319 3826 10319
TIME...MOT...LOC 2315Z 227DEG 24KT 3827 10346
WIND...HAIL 70MPH 1.00IN

$$

164 
WWUS55 KPUB 182325
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
525 PM MDT WED MAY 18 2011

COC011-025-061-089-190000-
/O.CON.KPUB.SV.W.0004.000000T0000Z-110519T0000Z/
OTERO CO-CROWLEY CO-BENT CO-KIOWA CO-
525 PM MDT WED MAY 18 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
KIOWA...NORTHWESTERN BENT...EASTERN CROWLEY AND EXTREME NORTHEASTERN
OTERO COUNTIES UNTIL 600 PM MDT...

AT 519 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 8
MILES SOUTHWEST OF ARLINGTON...OR 21 MILES NORTH OF LA JUNTA...MOVING
NORTHEAST AT 30 MPH.

MODERATE ROTATION WAS STILL NOTED WITH THIS SUPERCELL THUNDERSTORM. 
SUPERCELL THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO 
WARNING. BE ALERT FOR CHANGING WEATHER IN YOUR AREA. 

LOCATIONS IMPACTED INCLUDE...
  ARLINGTON.

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.

&&

LAT...LON 3814 10356 3831 10374 3851 10367 3851 10319
      3826 10319
TIME...MOT...LOC 2324Z 227DEG 24KT 3829 10342
WIND...HAIL 70MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 4:42 AM MDT	Fire Weather Watch	PUB	Baca, Las Animas, Prowers	11 hr
May 18, 3:34 PM MDT	Red Flag Warning	PUB	Baca, Bent, Las Animas, Prowers	28 hr
May 18, 5:34 PM MDT	Tornado Warning	PUB	Crowley, Kiowa, Otero	41 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.