Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 87, NWS Paducah, KY

July 31, 2021Butler County, Wayne County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at Jul 31, 2021, 1:05 PM CDT for Butler County, Wayne County, Missouri. It was in force for 25 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
Jul 31, 2021, 1:05 PM CDT (18:05 UTC)
Expired
Jul 31, 2021, 1:30 PM CDT
In force
25 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Butler County, MO, Wayne County, MO

The radar

The Paducah radar (KPAH), 150 km from the middle of the area, began a volume at 18:05 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, 6.1 hours before the alert went out and 297 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 2021-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1314 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2021-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 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
1314 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

257 
WUUS53 KPAH 311805
SVRPAH
MOC023-223-311830-
/O.NEW.KPAH.SV.W.0087.210731T1805Z-210731T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Paducah KY
105 PM CDT Sat Jul 31 2021

The National Weather Service in Paducah has issued a

* Severe Thunderstorm Warning for...
  South central Wayne County in southeastern Missouri...
  Northeastern Butler County in southeastern Missouri...

* Until 130 PM CDT.

* At 104 PM CDT, a severe thunderstorm was located near Greenville,
  moving south at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. Spotters 
           reported 40 mph winds in the area.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Lake Wappapello State Park and Hendrickson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3710 9058 3717 9038 3683 9024 3682 9050
TIME...MOT...LOC 1804Z 337DEG 21KT 3704 9043 

HAIL...1.00IN
WIND...60MPH
 
$$

PS
1 follow-up statement
130 
WWUS53 KPAH 311816
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
116 PM CDT Sat Jul 31 2021

MOC023-223-311830-
/O.CON.KPAH.SV.W.0087.000000T0000Z-210731T1830Z/
Wayne MO-Butler MO-
116 PM CDT Sat Jul 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR SOUTH CENTRAL WAYNE AND NORTHEASTERN BUTLER COUNTIES...

At 115 PM CDT, a severe thunderstorm was located near Lake Wappapello
State Park, moving southeast at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Lake Wappapello State Park, Hendrickson and Rombauer. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3702 9053 3711 9036 3683 9024 3682 9050
TIME...MOT...LOC 1815Z 337DEG 21KT 3698 9040 

HAIL...1.00IN
WIND...60MPH
 
$$

PS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 11:48 AM CDTSpecial Weather StatementPAHBollinger, Cape Girardeau, Wayne42 min
Jul 31, 1:49 PM CDTSpecial Weather StatementPAHButler, New Madrid41 min
Jul 31, 2:31 PM CDTSpecial Weather StatementPAHNew Madrid44 min
Jul 31, 2:34 PM CDTSevere Thunderstorm WarningPAHButler41 min
Jul 31, 2:46 PM CDTSpecial Weather StatementPAHNew Madrid14 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021Every severe thunderstorm warning in 2021

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.