Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 892

May 25, 200431 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 25, 2004, 11:12 AM CDT for 31 counties in Missouri. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued
May 25, 2004, 11:12 AM CDT (16:12 UTC)
Expired
May 25, 2004, 12:45 PM CDT
In force
93 min
Issued by
the Storm Prediction Center
All 31 counties

Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dallas County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jefferson County, MO, Johnson County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Saint Charles County, MO, St. Clair County, MO, Warren County, MO, Washington County, MO

The radar

The Springfield radar (KSGF), 129 km from the middle of the area, began a volume at 16:14 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.2 hours before the alert went out and 179 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, Springfield, MO at 12:00Z on 2004-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1275 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, Springfield, MO at 12:00Z on 2004-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 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
1275 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

670 
ACUS11 KWNS 251612
SWOMCD
SPC MCD 251612 
MOZ000-ILZ000-251745-

MESOSCALE DISCUSSION 0892
NWS STORM PREDICTION CENTER NORMAN OK
1112 AM CDT TUE MAY 25 2004

AREAS AFFECTED...CNTRL MO

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 251612Z - 251745Z

ISOLATED HAIL THREAT POSSIBLE WITH STRONGEST STORMS. CONVECTIVE
TRENDS WILL BE MONITORED FOR POSSIBLE WW ISSUANCE.

TSTMS HAVE GRADUALLY INTENSIFIED OVER THE PAST HALF HOUR OR SO FROM
W OF COU WWD/SWWD TO SW OF SZL. VISIBLE SATELLITE
IMAGERY...MESOANALYSIS AND RUC DIAGNOSTIC FIELDS SUGGEST THAT STORMS
ARE LIKELY SLIGHTLY ELEVATED ALONG AND JUST TO THE N OF SURFACE
FRONT. ADDITIONALLY...TRANSVERSE BANDING IN CIRRUS CLOUDS DENOTES
CLOSE PROXIMITY OF UPPER-LEVEL JET AXIS AND POTENTIAL FOR DEEPER
UPWARD VERTICAL MOTION FIELDS ATOP SURFACE-850MB FRONTAL ZONE. LOCAL
RUC FORECAST SOUNDINGS JUST N OF FRONT INDICATE MUCAPES APPROACHING
1500 J/KG FOR ELEVATED PARCELS...SUGGESTING AN ISOLATED HAIL THREAT
WITH THE STRONGEST CELLS.

STORMS MAY TEND TO BECOME MORE SURFACE-BASED THIS AFTERNOON OVER
PORTIONS OF E-CNTRL MO AS WARM SECTOR BOUNDARY-LAYER CONTINUES TO
DESTABILIZE.

CONVECTIVE TRENDS WILL BE MONITORED AND IF IT APPEARS TSTMS ARE
BECOMING BETTER ORGANIZED A WW MAY BE REQUIRED.

..MEAD.. 05/25/2004

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

ATTN...WFO...LSX...SGF...EAX...

38099439 38889402 39239246 38989068 38499040 37659091
37509344 37629416

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:15 PM CDTMesoscale DiscussionSPCAdair, Audrain, Bates, Benton, Boone, Buchanan and 38 more90 min
May 24, 10:10 PM CDTSevere Thunderstorm WatchSPCBarton, Bates, Cass, Cedar, Dade, Henry and 6 more6 hr
May 24, 10:26 PM CDTMesoscale DiscussionSPCAudrain, Benton, Boone, Callaway, Camden, Cole and 27 more64 min
May 24, 10:45 PM CDTTornado WatchSPCAudrain, Boone, Callaway, Camden, Cole, Cooper and 18 more5 hr
May 24, 11:45 PM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Camden, Cole, Cooper and 18 more90 min
May 25, 12:00 AM CDTMesoscale DiscussionSPCBarton, Bates, Cass, Cedar, Dade, Henry and 6 more90 min
May 25, 2:17 AM CDTMesoscale DiscussionSPCBarton, Bates, Cedar, Dade, Henry, Jasper and 3 more118 min
May 25, 1:05 PM CDTSevere Thunderstorm WatchSPCCrawford, Franklin, Jefferson, Lincoln, Montgomery, Pike and 4 more6 hr
May 25, 2:39 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dent, Iron and 13 more96 min
May 25, 3:00 PM CDTSevere Thunderstorm WatchSPCBollinger, Cape Girardeau, Carter, Crawford, Dent, Howell and 14 more6 hr
May 25, 3:16 PM CDTMesoscale DiscussionSPCCrawford, Franklin, Jefferson, Lincoln, Montgomery, Pike and 4 more89 min
May 25, 5:03 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Carter, Cole, Crawford, Dent and 23 more87 min
May 25, 6:04 PM CDTMesoscale DiscussionSPCCamden, Cole, Crawford, Franklin, Gasconade, Jefferson and 12 more56 min

Nearby

Mesoscale Discussions in Missouri, 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.