Alert archive / Colorado / Tornado Warnings in 2016

Tornado Warning 13, NWS Denver/Boulder, CO

May 30, 2016Logan County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 30, 2016, 2:11 PM MDT for Logan County, Colorado. It was in force for 34 min. 4 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 30, 2016, 2:11 PM MDT (20:11 UTC)
Expired: May 30, 2016, 2:45 PM MDT
In force: 34 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Logan County, CO

The radar

The Cheyenne radar (KCYS), 133 km from the middle of the area, began a volume at 20:13 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 30, 2:18 PM MDT	TORNADO	6 W Peetz, CO	TORNADO ON GROUND FOR APPROXIMATELY 13 MINUTES FROM 218PM THROUGH 231PM. INITIAL TOUCHDOWN WAS 7 WNW OF PEETZ AND LIFTED 6 WSW OF PEETZ. REPORTS OF DAMAGE TO A FARM WORKSHOP BUILDING 7 W OF PEETZ NEAR COUNTY ROAD 37 AND 74. POWER OUTAGES IN VICINITY.
May 30, 2:18 PM MDT	TORNADO	6 W Peetz, CO	TORNADO ON GROUND FOR APPROXIMATELY 13 MINUTES FROM 218PM THROUGH 231PM. INITIAL TOUCHDOWN WAS 7 WNW OF PEETZ AND LIFTED 6 WSW OF PEETZ. COMPLETE DESTRUCTION OF A 5500 SQ FT WOOD FRAME STEEL COVERED FARM WORKSHOP BUILDING 7 W OF PEETZ NEAR COUNTY ROAD 37 AND 7
May 30, 2:18 PM MDT	TORNADO	6 W Peetz, CO	TORNADO ON GROUND FOR APPROXIMATELY 13 MINUTES FROM 218PM THROUGH 231PM. INITIAL TOUCHDOWN WAS 7 WNW OF PEETZ AND LIFTED 6 WSW OF PEETZ. COMPLETE DESTRUCTION OF A 5500 SQ FT WOOD FRAME STEEL COVERED FARM WORKSHOP BUILDING 7 W OF PEETZ NEAR COUNTY ROAD 37 AND 7
May 30, 2:18 PM MDT	TORNADO	6 W Peetz, CO	TORNADO ON GROUND FOR APPROXIMATELY 13 MINUTES FROM 218PM THROUGH 231PM. INITIAL TOUCHDOWN WAS 7 WNW OF PEETZ AND LIFTED 6 WSW OF PEETZ. REPORTS OF DAMAGE TO A FARM WORKSHOP BUILDING 7 W OF PEETZ NEAR COUNTY ROAD 37 AND 74. POWER OUTAGES IN VICINITY.

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

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 8.2 hours before the alert went out and 120 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2218 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

962 
WFUS55 KBOU 302011
TORBOU
COC075-302045-
/O.NEW.KBOU.TO.W.0013.160530T2011Z-160530T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
211 PM MDT MON MAY 30 2016

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN LOGAN COUNTY IN NORTHEASTERN COLORADO...

* UNTIL 245 PM MDT
    
* AT 209 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 9 MILES WEST OF PEETZ...OR 20 MILES SOUTHWEST
  OF SIDNEY...MOVING EAST AT 20 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. SPOTTERS HAVE REPORTED A
           TORNADO ON THE GROUND 5 WEST AND NORTHWEST OF PEETZ. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  PEETZ AND WESTPLAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4100 10295 4088 10319 4086 10357 4100 10357
TIME...MOT...LOC 2009Z 279DEG 18KT 4097 10329 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

ENTREKIN

2 follow-up statements

631 
WWUS55 KBOU 302023
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
223 PM MDT MON MAY 30 2016

COC075-302045-
/O.CON.KBOU.TO.W.0013.000000T0000Z-160530T2045Z/
LOGAN CO-
223 PM MDT MON MAY 30 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM MDT FOR
NORTHWESTERN LOGAN COUNTY...
    
AT 222 PM MDT...A CONFIRMED TORNADO WAS LOCATED 1 MILES WEST OF
PEETZ...OR 17 MILES SOUTHWEST OF SIDNEY...MOVING EAST AT 20 MPH.

HAZARD...DAMAGING TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IMPACTED INCLUDE...
PEETZ AND WESTPLAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4100 10295 4088 10319 4086 10357 4100 10357
TIME...MOT...LOC 2022Z 279DEG 18KT 4096 10320 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ENTREKIN

167 
WWUS55 KBOU 302044
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
244 PM MDT MON MAY 30 2016

COC075-302053-
/O.EXP.KBOU.TO.W.0013.000000T0000Z-160530T2045Z/
LOGAN CO-
244 PM MDT MON MAY 30 2016

...THE TORNADO WARNING FOR NORTHWESTERN LOGAN COUNTY WILL EXPIRE AT
245 PM MDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. THE TORNADO WHICH
WAS ON THE GROUND HAS DISSIPATED. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT FOR
NORTHEASTERN COLORADO.

LAT...LON 4100 10295 4088 10319 4086 10357 4100 10357
TIME...MOT...LOC 2040Z 279DEG 18KT 4096 10320 

$$

ENTREKIN

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 7:55 PM MDT	Special Weather Statement	BOU	Washington	50 min
May 29, 8:26 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	49 min
May 29, 9:13 PM MDT	Special Weather Statement	BOU	Phillips	62 min
May 30, 12:49 PM MDT	Special Weather Statement	BOU	Weld	41 min
May 30, 1:10 PM MDT	Special Weather Statement	BOU	Denver	35 min
May 30, 3:38 PM MDT	Special Weather Statement	BOU	Logan	22 min
May 30, 4:03 PM MDT	Special Weather Statement	BOU	Phillips, Sedgwick	42 min

Nearby

Tornado Warnings in Colorado, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.