Alert archive / Colorado / Tornado Warnings in 2016

Tornado Warning 6, NWS Denver/Boulder, CO

May 7, 2016Weld County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 7, 2016, 3:36 PM MDT for Weld County, Colorado. It was in force for 24 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, 2016, 3:36 PM MDT (21:36 UTC)
Expired
May 7, 2016, 4:00 PM MDT
In force
24 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Observed
Hail
1.0 in

County Weld County, CO

The radar

The Cheyenne radar (KCYS), 87 km from the middle of the area, began a volume at 21:37 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, 12:31 PM MDTTornado WatchSPC8 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.6 hours before the alert went out and 108 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 2016-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2016-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -38 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
5 J/kg
Mixed-layer CIN
-219 J/kg
Mixed-layer LCL
776 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-38 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

450 
WFUS55 KBOU 072136
TORBOU
COC123-072200-
/O.NEW.KBOU.TO.W.0006.160507T2136Z-160507T2200Z/

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

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL WELD COUNTY IN NORTHEASTERN COLORADO...

* UNTIL 400 PM MDT

* AT 336 PM MDT...A CONFIRMED TORNADO WAS LOCATED 10 MILES SOUTHEAST
  OF BRIGGSDALE...OR 27 MILES NORTHWEST OF FORT MORGAN...MOVING
  NORTHEAST AT 35 MPH.

  HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. 

  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...
  KEOTA.

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

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4061 10392 4052 10406 4052 10415 4046 10415
      4062 10429 4079 10406
TIME...MOT...LOC 2136Z 212DEG 32KT 4055 10415 

TORNADO...OBSERVED
HAIL...1.00IN

$$

RPK

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 6:40 PM MDTSpecial Weather StatementBOUClear Creek50 min
May 7, 11:36 AM MDTSpecial Weather StatementBOUJackson24 min
May 7, 12:41 PM MDTSpecial Weather StatementBOUDouglas34 min
May 7, 12:55 PM MDTTornado WarningBOUElbert22 min
May 7, 1:14 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert31 min
May 7, 1:29 PM MDTTornado WarningBOUArapahoe, Elbert16 min
May 7, 1:43 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe32 min
May 7, 2:08 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert52 min
May 7, 2:10 PM MDTSevere Thunderstorm WarningBOUWeld35 min
May 7, 2:14 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld31 min
May 7, 2:17 PM MDTSevere Thunderstorm WarningBOUAdams28 min
May 7, 2:31 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld29 min
May 7, 2:35 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe40 min
May 7, 2:46 PM MDTTornado WarningBOUMorgan, Weld29 min
May 7, 3:03 PM MDTSevere Thunderstorm WarningBOUWashington27 min
May 7, 3:12 PM MDTTornado WarningBOUMorgan, Weld33 min
May 7, 3:34 PM MDTTornado WarningBOUMorgan26 min
May 7, 3:54 PM MDTTornado WarningBOUWeld36 min
May 7, 3:58 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan32 min
May 7, 4:39 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Washington36 min
May 7, 4:47 PM MDTAreal Flood AdvisoryBOUAdams, Morgan, Washington3 hr
May 7, 5:17 PM MDTSevere Thunderstorm WarningBOUWashington28 min
May 7, 5:44 PM MDTSevere Thunderstorm WarningBOUPhillips31 min
May 7, 5:54 PM MDTSevere Thunderstorm WarningBOUWashington36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.