Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 147, NWS Paducah, KY

June 21, 1997Perry County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at Jun 21, 1997, 9:19 PM CDT for Perry County, Missouri. It was in force for 56 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: Jun 21, 1997, 9:19 PM CDT (02:19 UTC)
Expired: Jun 21, 1997, 10:15 PM CDT
In force: 56 min
Issued by: NWS Paducah, KY
Area: Whole counties

County Perry County, MO

The radar

The Paducah radar (KPAH), 117 km from the middle of the area, began a volume at 02:21 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 00:00Z, 2.3 hours before the alert went out and 292 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: 301 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1421 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: -81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Jun 21, 1:16 PM CDT, 8 hours 3 minutes earlier.

Area forecast discussion, Jun 21, 1:16 PM CDT, 8 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
115 PM CDT SAT JUN 21 1997

LOW LEVEL CONVERGENCE PATTERN EVIDENT ON ADAP STREAMLIME WIND PLOT
AIDING CONVECTION ACROSS FORECAST AREA.  SLOW MOVING STORMS COULD CLOSE
IN ON/OR EXCEED FFG VALUES.  PREFER EVENING WORDING FOR CONVECTION
ACROSS FA.

FORECAST PROBLEM FOR SUNDAY WILL BE POPS.

DESPITE WEAK 50H HEIGHT RISES/RIDGE...ETA GRIDDED TIME-HEIGHT SECTIONS
CONTINUE TO INDICATE MOD/STRONG DIVERGENT WIND PATTERN 30-20H THROUGH
SUNDAY.  SUB 85H WARM AXIS ALSO WORKS INTO FA ON SUNDAY.  SUSPECT
DECAYING OUTFLOW REMNANTS WILL AID LIFT ALSO.  LIKE CHANCE POPS FOR
FA.

PERSISTENCE/FWC TEMP VALUES WAY TO GO.  CURRENT ZONES REFLECT THIS.

PAUL W

In the hours before

Local storm report, Jun 21, 8:37 PM CDT, 42 minutes before

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Local storm report, Jun 21, 8:38 PM CDT, 41 minutes before

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Special weather statement, Jun 21, 8:38 PM CDT, 41 minutes before

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Special weather statement, Jun 21, 8:38 PM CDT, 41 minutes before

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Special weather statement, Jun 21, 8:39 PM CDT, 40 minutes before

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Special weather statement, Jun 21, 8:42 PM CDT, 37 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
Jun 22, 3:26 AM CDT	Flash Flood Warning	PAH	Stoddard	3 hr
Jun 21, 7:02 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson	43 min
Jun 21, 7:09 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	51 min
Jun 21, 7:42 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	48 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1997 Every severe thunderstorm warning in 1997

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.