Alert archive / Missouri / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 84, NWS Paducah, KY

July 23, 2013Butler County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at Jul 23, 2013, 9:43 AM CDT for Butler County, Missouri. It was in force for 17 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 23, 2013, 9:43 AM CDT (14:43 UTC)
Expired: Jul 23, 2013, 10:00 AM CDT
In force: 17 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Butler County, MO

The radar

The Paducah radar (KPAH), 151 km from the middle of the area, began a volume at 14:47 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

Springfield, MO (KSGF), launched 12:00Z, 2.7 hours before the alert went out and 303 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: 1279 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1415 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 271 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 23, 6:55 AM CDT, 2 hours 48 minutes earlier.

Area forecast discussion, Jul 23, 6:55 AM CDT, 2 hours 48 minutes before

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Hazardous weather outlook, Jul 23, 4:49 AM CDT, 4 hours 54 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
449 AM CDT TUE JUL 23 2013

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-241000-
JEFFERSON-WAYNE IL-EDWARDS-WABASH-PERRY IL-FRANKLIN-HAMILTON-
WHITE-JACKSON-WILLIAMSON-SALINE-GALLATIN-UNION IL-JOHNSON-POPE-
HARDIN-ALEXANDER-PULASKI-MASSAC-GIBSON-PIKE-POSEY-VANDERBURGH-
WARRICK-SPENCER-FULTON-HICKMAN-CARLISLE-BALLARD-MCCRACKEN-GRAVES-
LIVINGSTON-MARSHALL-CALLOWAY-CRITTENDEN-LYON-TRIGG-CALDWELL-
UNION KY-WEBSTER-HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN-
MUHLENBERG-TODD-PERRY MO-BOLLINGER-CAPE GIRARDEAU-WAYNE MO-CARTER-
RIPLEY-BUTLER-STODDARD-SCOTT-MISSISSIPPI-NEW MADRID-
449 AM CDT TUE JUL 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN
ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST
MISSOURI.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...MAINLY THIS
AFTERNOON AND EVENING. DAMAGING WINDS WILL BE THE PRIMARY HAZARD
SHOULD A SEVERE STORM OCCUR...BUT LARGE HAIL IS ALSO POSSIBLE
GIVEN THE VERY UNSTABLE ATMOSPHERE. HEAVY RAIN PRODUCING STORMS
THAT TRAIN OVER THE SAME AREAS WILL ALSO POSE THE RISK FOR
LOCALIZED FLOODING.

PEAK HEAT INDEX READINGS AROUND 100 TO 105 ARE FORECAST THIS
AFTERNOON. PLEASE REFER TO THE SPECIAL WEATHER STATEMENT FOR MORE
DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE CHANCE OF THUNDERSTORMS LINGERS WEDNESDAY MORNING...MAINLY
OVER SOUTHEAST MISSOURI...WESTERN KENTUCKY...AND SOUTH OF THE
SHAWNEE HILLS IN FAR SOUTHERN ILLINOIS. SEVERE WEATHER IS NOT
ANTICIPATED.

SMALL CHANCES OF THUNDERSTORMS ARE FORECAST OVER PORTIONS OF THE
REGION FROM FRIDAY THROUGH SATURDAY NIGHT. SEVERE WEATHER IS NOT
EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING...SO
STAY TUNED TO THE LATEST FORECASTS AND UPDATES.

RJP

In the hours before

Special weather statement, Jul 23, 4:35 AM CDT, 5 hours 8 minutes before

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Special weather statement, Jul 23, 9:25 AM CDT, 18 minutes before

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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 23, 6:56 PM CDT	Severe Thunderstorm Warning	PAH	Daviess	49 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2013 Every severe thunderstorm warning in 2013

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.