Alert archive / Missouri / Frost Advisories in 2006

Frost Advisory 1, NWS Springfield, MO

April 3, 200623 counties in Missouri

NWS Springfield, MO issued this frost advisory at Apr 3, 2006, 3:31 PM CDT for 23 counties in Missouri. It took effect at Apr 4, 2006, 3:00 AM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Apr 3, 2006, 3:31 PM CDT (20:31 UTC)
In effect from: Apr 4, 2006, 3:00 AM CDT
Expired: Apr 4, 2006, 7:00 AM CDT
In force: 4 hr
Issued by: NWS Springfield, MO

All 23 counties

Benton County, MO, Camden County, MO, Christian County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 84 km from the middle of the area, began a volume at 20:33 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

Little Rock, AR (KLZK), launched 12:00Z, 8.5 hours before the alert went out and 374 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: 2794 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this frost advisory went out at Apr 2, 6:45 PM CDT, 20 hours 46 minutes earlier.

Area forecast discussion, Apr 2, 6:45 PM CDT, 20 hours 46 minutes before

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Nearby

Frost Advisories in Missouri, 2006 Every frost advisory 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.