Alert archive / Colorado / Tornado Warnings in 2016

Tornado Warning 8, NWS Denver/Boulder, CO

May 7, 2016Phillips County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 7, 2016, 7:07 PM MDT for Phillips 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
May 7, 2016, 7:07 PM MDT (01:07 UTC)
Expired
May 7, 2016, 7:45 PM MDT
In force
38 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

County Phillips County, CO

The radar

The Goodland radar (KGLD), 137 km from the middle of the area, began a volume at 01:10 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
May 7, 7:15 PM MDTHAIL 1.756 Se Holyoke, 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
May 7, 12:31 PM MDTTornado WatchSPC8 hr

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 1.1 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2016-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2016-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -86 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1869 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-86 m²/s²
0-3 km storm-relative helicity
-151 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

625 
WFUS55 KBOU 080107
TORBOU
COC095-080145-
/O.NEW.KBOU.TO.W.0008.160508T0107Z-160508T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
707 PM MDT SAT MAY 7 2016

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 745 PM MDT
    
* AT 707 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 8 MILES SOUTH OF PLEASANT VALLEY...OR 9 MILES
  SOUTHEAST OF HOLYOKE...MOVING NORTH AT 30 MPH.

  HAZARD...TORNADO AND PING PONG BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  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...
  AMHERST AND PLEASANT VALLEY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4044 10205 4044 10229 4073 10226 4073 10206
TIME...MOT...LOC 0107Z 186DEG 28KT 4050 10217 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

RPK
2 follow-up statements
026 
WWUS55 KBOU 080118
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
718 PM MDT SAT MAY 7 2016

COC095-080145-
/O.CON.KBOU.TO.W.0008.000000T0000Z-160508T0145Z/
PHILLIPS CO-
718 PM MDT SAT MAY 7 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM MDT FOR EASTERN
PHILLIPS COUNTY...
    
AT 717 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR PLEASANT VALLEY...OR 7 MILES EAST OF HOLYOKE...MOVING
NORTH AT 30 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

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...
AMHERST AND PLEASANT VALLEY. 

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 IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4044 10205 4044 10229 4073 10226 4073 10206
TIME...MOT...LOC 0117Z 186DEG 28KT 4058 10216 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

RPK
912 
WWUS55 KBOU 080140
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
740 PM MDT SAT MAY 7 2016

COC095-080149-
/O.EXP.KBOU.TO.W.0008.000000T0000Z-160508T0145Z/
PHILLIPS CO-
740 PM MDT SAT MAY 7 2016

...THE TORNADO WARNING FOR EASTERN PHILLIPS COUNTY WILL EXPIRE AT 745
PM MDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL
HAIL....GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

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

LAT...LON 4044 10205 4044 10229 4073 10226 4073 10206
TIME...MOT...LOC 0138Z 186DEG 28KT 4058 10216 

$$

RJK

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 6:56 PM MDTSevere Thunderstorm WarningBOUPhillips34 min
May 8, 2:33 PM MDTSpecial Weather StatementBOUWashington27 min
May 8, 3:24 PM MDTSpecial Weather StatementBOUAdams36 min
May 8, 3:28 PM MDTSevere Thunderstorm WarningBOUAdams21 min
May 8, 4:20 PM MDTSpecial Weather StatementBOUDenver40 min
May 8, 4:35 PM MDTSpecial Weather StatementBOUWashington25 min
May 8, 4:39 PM MDTSpecial Weather StatementBOUDenver36 min
May 8, 5:04 PM MDTSpecial Weather StatementBOUBroomfield26 min
May 8, 5:57 PM MDTSpecial Weather StatementBOUWeld48 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.