Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 2018

August 16, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2004, 3:52 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Aug 16, 2004, 3:52 PM CDT (20:52 UTC)
Expired
Aug 16, 2004, 6:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 34 counties

Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ford County, KS, Gray County, KS, Harper County, KS, Harvey County, KS, Haskell County, KS, Kingman County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Pratt County, KS, Reno County, KS, Sedgwick County, KS, Seward County, KS, Stafford County, KS, Stevens County, KS, Sumner County, KS, Union County, NM, Alfalfa County, OK, Beaver County, OK, Cimarron County, OK, Grant County, OK, Harper County, OK, Texas County, OK, Woods County, OK, Woodward County, OK, Dallam County, TX, Hansford County, TX, Lipscomb County, TX, Ochiltree County, TX, Sherman County, TX

The radar

The Dodge City radar (KDDC), 133 km from the middle of the area, began a volume at 20:56 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

Dodge City, (KDDC), launched 12:00Z, 8.9 hours before the alert went out and 139 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, Dodge City, at 12:00Z on 2004-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 332 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, Dodge City, at 12:00Z on 2004-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939Sfc1 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
332 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
17 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.

853 
ACUS11 KWNS 162054
SWOMCD
SPC MCD 162052 
KSZ000-OKZ000-TXZ000-COZ000-NMZ000-162315-

MESOSCALE DISCUSSION 2018
NWS STORM PREDICTION CENTER NORMAN OK
0352 PM CDT MON AUG 16 2004

AREAS AFFECTED...FAR NERN NM...THE OK PANHANDLE AND NRN TX
PANHANDLE...SWRN AND SCENTRAL KS/ FAR NWRN OK

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 162052Z - 162315Z

ISOLATED-SCT THUNDERSTORMS ARE ANTICIPATED TO DEVELOP ALONG A TROUGH
AXIS EXTENDING FROM THE WRN OK PANHANDLE NEWD INTO SCENTRAL KS OVER
THE NEXT FEW HOURS. OVERALL MARGINAL DEEP LAYER SHEAR SHOULD KEEP
THE SVR THREAT RELATIVELY MARGINAL.

LATEST VIS SAT IMAGERY SHOWS TOWERING CU OVER FAR SWRN KS AND THE
WRN OK PANHANDLE/NERN NM...WHERE CONVERGENCE WAS MAXIMIZED. FARTHER
EAST...SOMEWHAT WEAKER CONVERGENCE HAS MADE CONVECTIVE DEVELOPMENT
SLOWER. HOWEVER...CONTINUED HEATING AND ASCENT ALONG DIFFERENTIAL
THERMAL BOUNDARY SHOULD ALLOW FOR ISOLATED STORM DEVELOPMENT FROM
NEAR DDC TO NEAR GBD/PTT AREAS OVER THE NEXT 2 HOURS. REGIONAL
PROFILER DATA SUGGESTS THAT NWLY MID LEVEL FLOW SHOULD GRADUALLY
INCREASE TO AROUND 20 KTS OVER THE NEXT FEW HOURS. WITH SSWLY LOW
LEVEL FLOW AROUND 15 KTS...THIS SHOULD SUPPORT AT LEAST SUFFICIENT
DEEP LAYER SHEAR FOR SHORT-LIVED ORGANIZED ROTATION TO THE STRONGEST
STORMS. THE PRIMARY SVR THREAT SHOULD BE LARGE HAIL...WITH DAMAGING
WINDS POSSIBLE WITH THE STRONGEST STORMS. CONVECTION SHOULD MOVE
GRADUALLY INTO THE NRN TX PANHANDLE AND FAR NWRN OK BY EARLY EVENING
BEFORE WEAKENING. SLOW SWD STORM MOTIONS FROM 5-10 KTS COMBINED WITH
MODEST MID LEVEL MOISTURE WILL SUPPORT LOCALLY HEAVY RAINFALL RATES
ABOVE 1 INCH/HR.

..CROSBIE.. 08/16/2004

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

ATTN...WFO...ICT...OUN...DDC...AMA...PUB...ABQ...

36770393 36740386 36140389 35910292 36220084 36349932
36819721 37959694 38149774 38169951 37000235

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 1:45 AM CDTMesoscale DiscussionSPCFinney, Gove, Grant, Gray, Greeley, Hamilton and 11 more2 hr
Aug 16, 3:55 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Gray and 14 more3 hr
Aug 16, 12:39 PM CDTMesoscale DiscussionSPCGrant, Hidalgo, Luna66 min

Nearby

Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004

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.