Alert archive / Missouri / Mesoscale Discussions in 2008

Mesoscale Discussion 488

March 27, 20084 states

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2008, 3:25 PM CDT for 4 states. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Mar 27, 2008, 3:25 PM CDT (20:25 UTC)
Expired
Mar 27, 2008, 5:00 PM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 39 counties

Benton County, AR, Cherokee County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Cole County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Pettis County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Stone County, MO, Webster County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Mayes County, OK, Muskogee County, OK, Ottawa County, OK, Rogers County, OK, Wagoner County, OK

The radar

The Springfield radar (KSGF), 52 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 43 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 2008-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 458 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 2008-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 319 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
458 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
725 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
319 m²/s²
0-3 km storm-relative helicity
336 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 4:39 PM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more8 hr
Mar 27, 4:39 AM CDTMesoscale DiscussionSPCBollinger, Boone, Butler, Callaway, Cape Girardeau, Carter and 36 more96 min
Mar 27, 12:29 PM CDTMesoscale DiscussionSPCCallaway, Cole, Cooper, Franklin, Gasconade, Jefferson and 5 more2 hr
Mar 27, 6:47 PM CDTSevere Thunderstorm WatchSPCBollinger, Butler, Cape Girardeau, Carter, Howell, Iron and 15 more6 hr

Nearby

Mesoscale Discussions in Missouri, 2008Mesoscale Discussions in Oklahoma, 2008Mesoscale Discussions in Arkansas, 2008Every mesoscale discussion in 2008

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.