Alert archive / Missouri / Mesoscale Discussions in 2005

Mesoscale Discussion 151

February 8, 20055 states

The Storm Prediction Center issued this mesoscale discussion at Feb 8, 2005, 6:52 PM CST for 5 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Feb 8, 2005, 6:52 PM CST (00:52 UTC)
Expired: Feb 8, 2005, 10:45 PM CST
In force: 4 hr
Issued by: the Storm Prediction Center

All 162 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Benton County, IA, Boone County, IA, Cass County, IA, Cedar County, IA, Clarke County, IA, Clinton County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jasper County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Muscatine County, IA, Page County, IA, Polk County, IA, Pottawattamie County, IA, Poweshiek County, IA, Ringgold County, IA, Scott County, IA, Shelby County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Fulton County, IL, Greene County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Jersey County, IL, Knox County, IL, Macoupin County, IL, Mason County, IL, McDonough County, IL, Menard County, IL, Mercer County, IL, Morgan County, IL, Pike County, IL, Rock Island County, IL, Schuyler County, IL, Scott County, IL, Warren County, IL, Atchison County, KS, Brown County, KS, Doniphan County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Nemaha County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Audrain County, MO, Benton County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clark County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Franklin County, MO, Gasconade County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Nodaway County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Platte County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, St. Clair County, MO, Sullivan County, MO, Warren County, MO, Worth County, MO, Cass County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Sarpy County, NE, Saunders County, NE, Washington County, NE

The radar

The Des Moines radar (KDMX), 163 km from the middle of the area, began a volume at 00:56 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

Topeka, KS (KTOP), launched 00:00Z, 0.9 hours before the alert went out and 241 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 535 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 278 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 090052
SWOMCD
SPC MCD 090052 
ILZ000-MOZ000-IAZ000-KSZ000-NEZ000-090445-

MESOSCALE DISCUSSION 0151
NWS STORM PREDICTION CENTER NORMAN OK
0652 PM CST TUE FEB 08 2005

AREAS AFFECTED...SERN NE/SRN IA/NERN KS/NRN MO/SRN IA/NW AND WCNTRL
IL

CONCERNING...PRECIPITATION TRENDS...WINTER PRECIPITATION 

VALID 090052Z - 090445Z

PERIODS OF MODERATE SNOW ARE EXPECTED TO DIMINISH ACROSS PORTIONS OF
SRN IA/NRN MO AS DRIER AIR ALOFT MOVES INTO THE REGION. FARTHER
SOUTH ACROSS CNTRL MO...A MIX OF FZRA AND SLEET IS EXPECTED THROUGH
THE EVENING.

WATER VAPOR IMAGERY THIS EVENING SHOWS MAIN VORTICITY MAXIMUM OVER
NCNTRL KS...WITH THE LOW LEVEL BAROCLINIC ZONE NOW EXTENDING FROM
NCNTRL OK INTO ECNTRL KS PER AREA VAD WIND PROFILER DATA. SATELLITE
AND RADAR IMAGERY SUGGEST A DRY SLOT HAS DEVELOPED GIVEN RAPIDLY
DIMINISHING RADAR RETURNS OVER NERN KS/NW MO. THE BEST POTENTIAL FOR
MODERATE SNOW TONIGHT WILL LIKELY BE ASSOCIATED WITH THE UPPER VORT
MAX...WHERE THE STRONGEST AREA OF DIFFERENTIAL DIVERGENCE IS
EXPECTED TONIGHT.

SCATTERED TSTMS HAVE DEVELOPED ACROSS CNTRL OK ASSOCIATED WITH AN
AXIS OF LOW LEVEL THETA-E ADVECTION WHICH EXTENDS INTO CNTRL MO. SFC
TEMPERATURES ACROSS CNTRL MO ARE AT OR JUST BELOW FREEZING...WITH
FREEZING RAIN OCCURRING ALONG A SZL/DMO/COU LINE. LATEST
OBSERVATIONAL ANALYSIS FROM THE RUC SUGGESTS 0C ISOTHERM AT 850MB IS
LOCATED NORTH OF THE I-70 CORRIDOR. 00Z OBSERVED SOUNDING FROM
SPRINGFIELD MO SHOWS A LARGE WARM LAYER FROM 750-900MB. FORECAST
SOUNDINGS INDICATE THAT FZRA POSSIBLY MIXING WITH SLEET WILL BE MAIN
PRECIPITATION TYPE UNTIL COLDER AIR ARRIVES WITH UPPER TROUGH LATER
THIS EVENING.

..TAYLOR.. 02/09/2005

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

...NOTICE...
SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A 
SCHEDULED BASIS...FOUR TIMES A DAY...BETWEEN 00-01 UTC...
06-07 UTC...12-13 UTC...AND 18-19 UTC AS SIGNIFICANT SHORT
RANGE WINTER WEATHER EVENTS UNFOLD.  THIS SCHEDULE WILL BE
USED FROM DECEMBER 1 THROUGH FEBRUARY 28.

ATTN...WFO...ILX...LSX...DVN...SGF...DMX...EAX...OAX...TOP...

41999608 41519684 40399693 39239543 37799373 37889176
38888995 40048979 41318997 42219060

Nearby

Mesoscale Discussions in Missouri, 2005 Mesoscale Discussions in Iowa, 2005 Mesoscale Discussions in Illinois, 2005 Every mesoscale discussion in 2005

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.