Alert archive / Colorado / Mesoscale Discussions in 2006

Mesoscale Discussion 1925

September 1, 20067 counties in Colorado

The Storm Prediction Center issued this mesoscale discussion at Sep 1, 2006, 6:32 PM MDT for 7 counties in Colorado. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Sep 1, 2006, 6:32 PM MDT (00:32 UTC)
Expired
Sep 1, 2006, 8:00 PM MDT
In force
88 min
Issued by
the Storm Prediction Center

Counties Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO

The radar

The Pueblo radar (KPUX), 107 km from the middle of the area, began a volume at 00:33 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.5 hours before the alert went out and 242 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 2006-09-02Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2006-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
907 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
131 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.

000 
ACUS11 KWNS 020032
SWOMCD
SPC MCD 020032 
KSZ000-OKZ000-COZ000-NMZ000-020200-

MESOSCALE DISCUSSION 1925
NWS STORM PREDICTION CENTER NORMAN OK
0732 PM CDT FRI SEP 01 2006

AREAS AFFECTED...ERN CO

CONCERNING...SEVERE THUNDERSTORM WATCH 763...

VALID 020032Z - 020200Z

POTENTIAL FOR LOCALLY DAMAGING WINDS AND SOME SEVERE HAIL WILL
CONTINUE THROUGH 02-03Z ACROSS SRN PORTIONS OF WW AREA.

EVOLUTION OF AN MCS HAS OCCURRED THIS EVENING ALONG THE FRONT RANGE
INTO ADJACENT HIGH PLAINS WITH LEADING EDGE OF SYSTEM GUST FRONT
EXTENDING FROM 25 W ITR TO 35 SE PUB AS OF 0020Z.  THE GENERAL
SYSTEM MOVEMENT IS 310/20-25 KTS WITH THE STRONGEST EMBEDDED CELLS
CURRENTLY OVER SRN LINCOLN AND ERN PUEBLO COUNTIES.

AIR MASS OVER E-CNTRL INTO SERN CO REMAINS RELATIVELY COOL /70-75F/
OWING TO PERSISTENT LOW CLOUDS AND INCREASING CIRRUS BLOW-OFF WHICH
IS LIMITING MLCAPES TO 500-1000 J/KG /PER 00Z DDC SOUNDING/. 
DESPITE THE MARGINAL INSTABILITY...VERTICAL SHEAR REMAINS SUPPORTIVE
OF STORM ORGANIZATION...INCLUDING EMBEDDED SUPERCELL STRUCTURES WITH
THE PRIMARY THREATS BEING SEVERE HAIL AND LOCALLY DAMAGING WINDS.

..MEAD.. 09/02/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DDC...GLD...AMA...PUB...BOU...ABQ...

37340478 38100408 38710317 38940263 38780210 37950196
37200249 36800324 36690404 36890448

Nearby

Mesoscale Discussions in Colorado, 2006Every mesoscale discussion in 2006

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.