Alert archive / Colorado / Tornado Warnings in 2014

Tornado Warning 13, NWS Denver/Boulder, CO

May 7, 2014Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 7, 2014, 5:38 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2014, 5:38 PM MDT (23:38 UTC)
Expired
May 7, 2014, 6:15 PM MDT
In force
37 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 160 km from the middle of the area, began a volume at 23:39 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.

The watch it was issued in

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

IssuedProductOfficeLasted
May 7, 12:37 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 11.6 hours before the alert went out and 133 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 2014-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 97 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2014-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
97 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
29 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.

519 
WFUS55 KBOU 072338
TORBOU
COC095-115-080015-
/O.NEW.KBOU.TO.W.0013.140507T2338Z-140508T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
538 PM MDT WED MAY 7 2014

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN PHILLIPS COUNTY IN NORTHEAST COLORADO...
  SOUTHEASTERN SEDGWICK COUNTY IN NORTHEAST COLORADO...

* UNTIL 615 PM MDT
    
* AT 538 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER SIXTEEN-MILE CORNER...OR 12 MILES
  NORTHEAST OF HOLYOKE...MOVING NORTHEAST AT 35 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...
  HOLYOKE...SIXTEEN-MILE CORNER AND AMHERST. 

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 4058 10229 4087 10233 4097 10206 4086 10205
      4069 10205
TIME...MOT...LOC 2338Z 218DEG 29KT 4075 10220 

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

$$

RPK
2 follow-up statements
795 
WWUS55 KBOU 072349
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
549 PM MDT WED MAY 7 2014

COC095-115-080015-
/O.CON.KBOU.TO.W.0013.000000T0000Z-140508T0015Z/
PHILLIPS CO-SEDGWICK CO-
549 PM MDT WED MAY 7 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR
NORTHEASTERN PHILLIPS AND SOUTHEASTERN SEDGWICK COUNTIES...
    
AT 548 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTHWEST OF VENANGO...OR 15 MILES SOUTHEAST OF
JULESBURG...MOVING NORTHEAST 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...
HOLYOKE...SIXTEEN-MILE CORNER AND AMHERST. 

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 4058 10229 4087 10233 4097 10206 4086 10205
      4069 10205
TIME...MOT...LOC 2348Z 233DEG 26KT 4079 10211 

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

$$

RPK
528 
WWUS55 KBOU 080008
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
608 PM MDT WED MAY 7 2014

COC095-115-080018-
/O.EXP.KBOU.TO.W.0013.000000T0000Z-140508T0015Z/
PHILLIPS CO-SEDGWICK CO-
608 PM MDT WED MAY 7 2014

...THE TORNADO WARNING FOR NORTHEASTERN PHILLIPS AND SOUTHEASTERN
SEDGWICK COUNTIES WILL EXPIRE AT 615 PM MDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT
WEDNESDAY EVENING FOR NORTHEAST COLORADO.

LAT...LON 4058 10229 4087 10233 4097 10206 4086 10205
      4069 10205
TIME...MOT...LOC 0005Z 218DEG 29KT 4079 10211 

$$

RPK

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 8:46 PM MDTSpecial Weather StatementBOUWeld29 min
May 6, 11:23 PM MDTSpecial Weather StatementBOUWeld52 min
May 6, 11:49 PM MDTSevere Thunderstorm WarningBOUWeld41 min
May 7, 1:31 PM MDTSpecial Weather StatementBOULarimer44 min
May 7, 1:45 PM MDTSevere Thunderstorm WarningBOULarimer, Weld45 min
May 7, 1:51 PM MDTTornado WarningBOUWeld24 min
May 7, 1:51 PM MDTTornado WarningBOUWeld24 min
May 7, 2:26 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Washington49 min
May 7, 2:32 PM MDTSevere Thunderstorm WarningBOUWeld43 min
May 7, 2:33 PM MDTSevere Thunderstorm WarningBOULarimer27 min
May 7, 2:39 PM MDTTornado WarningBOUWeld36 min
May 7, 2:56 PM MDTSevere Thunderstorm WarningBOULarimer34 min
May 7, 3:00 PM MDTSevere Thunderstorm WarningBOULarimer45 min
May 7, 3:01 PM MDTSevere Thunderstorm WarningBOUWeld44 min
May 7, 3:04 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Washington41 min
May 7, 3:27 PM MDTTornado WarningBOUWeld33 min
May 7, 3:30 PM MDTTornado WarningBOUWashington45 min
May 7, 3:57 PM MDTSevere Thunderstorm WarningBOUWashington48 min
May 7, 4:00 PM MDTSevere Thunderstorm WarningBOUWeld30 min
May 7, 4:15 PM MDTTornado WarningBOUWashington45 min
May 7, 4:26 PM MDTTornado WarningBOUWeld34 min
May 7, 4:50 PM MDTTornado WarningBOULogan, Phillips, Washington40 min
May 7, 4:52 PM MDTTornado WarningBOUPhillips23 min
May 7, 4:57 PM MDTTornado WarningBOULogan, Sedgwick48 min
May 7, 5:10 PM MDTTornado WarningBOUPhillips35 min
May 7, 5:17 PM MDTSpecial Weather StatementBOUBroomfield43 min
May 7, 5:24 PM MDTSpecial Weather StatementBOUBroomfield36 min
May 7, 5:30 PM MDTSevere Thunderstorm WarningBOUBoulder45 min
May 7, 5:30 PM MDTTornado Warning Tornado observedBOULogan, Phillips30 min

Nearby

Tornado Warnings in Colorado, 2014Every tornado warning in 2014Tornadoes in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.