Alert archive / Colorado / Tornado Warnings in 2016

Tornado Warning 19, NWS Denver/Boulder, CO

June 27, 2016Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 27, 2016, 4:39 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 51 min. 3 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 27, 2016, 4:39 PM MDT (22:39 UTC)
Expired
Jun 27, 2016, 5:30 PM MDT
In force
51 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Observed
Hail
1.75 in

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 159 km from the middle of the area, began a volume at 22:41 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

TimeReportWhereRemark
Jun 27, 4:40 PM MDTTORNADO8 Se Julesburg, COBRIEF TORNADO IN OPEN RANGELAND
Jun 27, 4:46 PM MDTHAIL 1.56 Sse Julesburg, CO
Jun 27, 5:14 PM MDTHAIL 11 E Amherst, 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.

IssuedProductOfficeLasted
Jun 27, 1:22 PM MDTTornado WatchSPC8 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.7 hours before the alert went out and 134 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2016-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2016-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
25 J/kg
Mixed-layer CIN
-288 J/kg
Mixed-layer LCL
2551 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

877 
WFUS55 KBOU 272239
TORBOU
COC095-115-272330-
/O.NEW.KBOU.TO.W.0019.160627T2239Z-160627T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
439 PM MDT MON JUN 27 2016

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN PHILLIPS COUNTY IN NORTHEASTERN COLORADO...
  EASTERN SEDGWICK COUNTY IN NORTHEASTERN COLORADO...

* UNTIL 530 PM MDT

* AT 439 PM MDT...A CONFIRMED TORNADO WAS LOCATED 7 MILES SOUTH OF
  JULESBURG...MOVING SOUTHEAST AT 15 MPH.

  HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL. 

  SOURCE...PUBLIC 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...
  JULESBURG...SIXTEEN-MILE CORNER AND AMHERST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED
FOR THE SAME AREA.

&&

LAT...LON 4063 10205 4061 10206 4068 10234 4100 10237
      4100 10206
TIME...MOT...LOC 2239Z 330DEG 11KT 4088 10223 

TORNADO...OBSERVED
HAIL...1.75IN

$$

BAKER
1 follow-up statement
896 
WWUS55 KBOU 272329
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
529 PM MDT MON JUN 27 2016

COC095-115-272338-
/O.EXP.KBOU.TO.W.0019.000000T0000Z-160627T2330Z/
PHILLIPS CO-SEDGWICK CO-
529 PM MDT MON JUN 27 2016

...THE TORNADO WARNING FOR NORTHEASTERN PHILLIPS AND EASTERN SEDGWICK
COUNTIES WILL EXPIRE AT 530 PM MDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE THE WARNING WILL
BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT FOR NORTHEASTERN
COLORADO.

LAT...LON 4063 10205 4061 10206 4068 10234 4100 10237
      4100 10206
TIME...MOT...LOC 2327Z 330DEG 11KT 4088 10223 

$$

BAKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 6:05 PM MDTSpecial Weather StatementBOUPhillips25 min
Jun 26, 6:13 PM MDTSpecial Weather StatementBOUWashington32 min
Jun 26, 6:28 PM MDTSevere Thunderstorm WarningBOUPhillips32 min
Jun 26, 6:44 PM MDTSpecial Weather StatementBOUDenver31 min
Jun 26, 6:59 PM MDTSevere Thunderstorm WarningBOUPhillips31 min
Jun 26, 7:27 PM MDTSpecial Weather StatementBOUDenver33 min
Jun 26, 7:35 PM MDTSpecial Weather StatementBOUAdams40 min
Jun 26, 7:40 PM MDTSevere Thunderstorm WarningBOUAdams35 min
Jun 26, 10:06 PM MDTSpecial Weather StatementBOUWashington39 min
Jun 26, 10:21 PM MDTSpecial Weather StatementBOUMorgan24 min
Jun 26, 10:40 PM MDTSevere Thunderstorm WarningBOUMorgan, Washington35 min
Jun 26, 11:13 PM MDTSevere Thunderstorm WarningBOUMorgan, Washington32 min
Jun 27, 12:25 AM MDTSpecial Weather StatementBOUMorgan50 min
Jun 27, 12:34 AM MDTSevere Thunderstorm WarningBOUMorgan26 min
Jun 27, 1:11 AM MDTSpecial Weather StatementBOUMorgan49 min
Jun 27, 3:38 PM MDTSevere Thunderstorm WarningBOUPhillips, Sedgwick37 min
Jun 27, 4:08 PM MDTTornado WarningBOULogan, Washington37 min
Jun 27, 4:22 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick38 min
Jun 27, 4:22 PM MDTSevere Thunderstorm WarningBOUPhillips, Sedgwick53 min
Jun 27, 4:41 PM MDTSevere Thunderstorm WarningBOUWashington34 min
Jun 27, 4:48 PM MDTTornado WarningBOUPhillips, Sedgwick27 min
Jun 27, 5:13 PM MDTSevere Thunderstorm WarningBOUPhillips47 min
Jun 27, 5:27 PM MDTTornado WarningBOUPhillips33 min
Jun 27, 5:54 PM MDTSevere Thunderstorm WarningBOUPhillips36 min

Nearby

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