Alert archive / Missouri / Special Weather Statements in 2015

Special Weather Statement, NWS St. Louis, MO

August 17, 2015Lincoln County, Missouri

NWS St. Louis, MO issued this special weather statement at Aug 17, 2015, 3:06 PM CDT for Lincoln County, Missouri. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 17, 2015, 3:06 PM CDT (20:06 UTC)
Expired: Aug 17, 2015, 3:30 PM CDT
In force: 24 min
Issued by: NWS St. Louis, MO

County Lincoln County, MO

The radar

The St Louis radar (KLSX), 62 km from the middle of the area, began a volume at 20:08 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

Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 237 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: 557 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1096 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -66 m²/s²
0-3 km storm-relative helicity: -16 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.

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What forecasters said that day

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

NWS St. Louis, MO wrote its last area forecast discussion before this special weather statement went out at Aug 17, 12:52 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, Aug 17, 12:52 PM CDT, 2 hours 14 minutes before

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Hazardous weather outlook, Aug 17, 4:54 AM CDT, 10 hours 12 minutes before

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In the hours before

Special weather statement, Aug 17, 3:06 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
306 PM CDT MON AUG 17 2015

MOZ036-052-172030-
PIKE MO-LINCOLN MO-
306 PM CDT MON AUG 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LINCOLN COUNTY IN
EAST CENTRAL MISSOURI AND SOUTH CENTRAL PIKE COUNTIES IN NORTHEASTERN
MISSOURI UNTIL 330 PM CDT...

AT 306 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES SOUTHWEST OF EOLIA...MOVING SOUTHEAST AT 5 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
EOLIA...SILEX...WHITESIDE...CYRENE AND EDGEWOOD.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3921 9089 3900 9110 3915 9128 3931 9113
TIME...MOT...LOC 2006Z 307DEG 5KT 3919 9114

CARNEY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 17, 3:34 PM CDT	Special Weather Statement	LSX	Lincoln	41 min
Aug 17, 3:58 PM CDT	Special Weather Statement	LSX	Osage	47 min
Aug 17, 4:27 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade, Montgomery, Warren	33 min
Aug 17, 4:51 PM CDT	Severe Thunderstorm Warning	LSX	Warren	39 min
Aug 17, 5:38 PM CDT	Special Weather Statement	LSX	Lewis	52 min
Aug 17, 6:09 PM CDT	Areal Flood Advisory	LSX	Lewis, Marion, Shelby	3 hr
Aug 17, 6:13 PM CDT	Special Weather Statement	LSX	Saint Charles	47 min

Nearby

Special Weather Statements in Missouri, 2015 Every special weather statement in 2015

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.