Alert archive / Missouri / Flash Flood Warnings in 2020

Flash Flood Warning 25, NWS Paducah, KY

March 12, 2020Butler County, Ripley County, Stoddard County, Missouri

NWS Paducah, KY issued this flash flood warning at Mar 12, 2020, 6:56 PM CDT for Butler County, Ripley County, Stoddard County, Missouri. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 12, 2020, 6:56 PM CDT (23:56 UTC)
Expired
Mar 12, 2020, 8:56 PM CDT
In force
2 hr
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Butler County, MO, Ripley County, MO, Stoddard County, MO

The radar

The Paducah radar (KPAH), 150 km from the middle of the area, began a volume at 23:59 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, 11.9 hours before the alert went out and 216 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, Little Rock, AR at 12:00Z on 2020-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 210 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2020-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 248 square meters per square second.1939587897117136Sfc1 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
210 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
248 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Mar 12, 3:15 PM CDT, 3 hours 41 minutes earlier.

Area forecast discussion, Mar 12, 3:15 PM CDT, 3 hours 41 minutes before
Area Forecast Discussion
National Weather Service Paducah KY
315 PM CDT Thu Mar 12 2020

.SHORT TERM...(Tonight through Saturday night)
Issued at 315 PM CDT Thu Mar 12 2020

A warm front was draped across our region at midday. Storms along
and south of this front have produced large hail and heavy rain.
We will continue with a Flood Watch for our north and northeast
counties until 03z. These storms will continue for a couple of
more hours, then a cold front will move across our region this
evening. Showers and thunderstorms, some potentially severe, are
possible along and ahead of this front through 06z. Behind the
front, showers will linger for a few hours across our southeast
counties.

Dry and colder conditions will return late tonight and continue
through the day Friday as high pressure briefly moves over the
region. By Friday night, an approaching mid/upper level trof will
spread showers across the region from west to east late Friday
night and continue through the day Saturday, then ending north to
south Saturday night as the trof move off to our east.
Temperatures from Friday through Saturday night will be near to a
little below seasonal normals.

.LONG TERM...(Sunday through Thursday)
Issued at 315 PM CDT Thu Mar 12 2020

Dry conditions will return for Sunday and Sunday night as weak
upper level ridging builds over the middle Mississippi and lower
Ohio valleys. Temperatures will remain near seasonal.

For Monday through Thursday, models blends show a very wet weather
pattern setting up, with good chances through the rest of the
extended forecast. The best chances at this point look to be
Monday night into early Tuesday, and again late Wednesday into
Thursday. However, models have gone back and forth with the
precipitation chances and are not in good agreement, and this
results in fairly low confidence. It looks like we have the
potential for a couple of good rounds of showers and a few
thunderstorms, but timing is still in question. We will be
gradually warming through the period, so at least liquid
precipitation will be our primary concern.

&&

.AVIATION...
Issued at 1223 PM CDT Thu Mar 12 2020

A warm front will continue to move northward today. This will be
followed by increasing/veering surface winds gusting to around 25
knots in the southern half of the region this afternoon. These winds
will translate to those areas east of the MS River in the evening as
a cold front passes through west-to-east. After midnight,
northwesterly to northerly winds are forecast to gradually diminish.
Meanwhile, any LIFR cigs should improve to at least IFR through the
afternoon, then to MVFR/VFR during the evening and into the
overnight period. Scattered tstms, some severe, will be most common
through mid evening.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...Flash Flood Watch until 10 PM CDT this evening for ILZ075>078-
     082-083-087.

MO...None.
IN...Flash Flood Watch until 10 PM CDT this evening for INZ081-082-
     085>088.

KY...Flash Flood Watch until 10 PM CDT this evening for KYZ014-015-
     018>020.

&&

SHORT TERM...RST
LONG TERM...RST
AVIATION...DB
Hazardous weather outlook, Mar 12, 3:34 PM CDT, 3 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service Paducah KY
334 PM CDT Thu Mar 12 2020

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-132045-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-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-
334 PM CDT Thu Mar 12 2020

This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.

.DAY ONE...Tonight

Scattered severe thunderstorms will be possible into this
evening. Damaging wind gusts, large hail and tornadoes will all be
possible. A few significant tornadoes cannot be ruled out.

Heavy rain is possible with storms into early this evening. A
Flash Flood Watch is in effect along and east of a line from Mount
Vernon Illinois to Dixon Kentucky until 03z.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms are forecast for portions or all of our region from
time to time from Tuesday through Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed through this evening.

In the hours before

Local storm report, Mar 12, 5:44 PM CDT, 1 hour 12 minutes before
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Local storm report, Mar 12, 5:46 PM CDT, 1 hour 10 minutes before
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Local storm report, Mar 12, 5:59 PM CDT, 57 minutes before
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Local storm report, Mar 12, 6:06 PM CDT, 50 minutes before
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Special weather statement, Mar 12, 6:18 PM CDT, 38 minutes before
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Local storm report, Mar 12, 6:22 PM CDT, 34 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 2:39 AM CDTDense Fog AdvisoryPAHBallard, Calloway, Carlisle, Crittenden, Fulton, Graves and 5 more7 hr
Mar 12, 10:05 AM CDTFlash Flood WatchPAHDaviess, Henderson, McLean, Union, Webster10 hr
Mar 12, 2:29 PM CDTAreal Flood AdvisoryPAHCrittenden, Livingston, Union3 hr
Mar 12, 3:36 PM CDTSevere Thunderstorm WarningPAHCaldwell, Crittenden, Hopkins, Union, Webster39 min
Mar 12, 4:10 PM CDTSevere Thunderstorm WarningPAHHopkins, McLean, Muhlenberg65 min
Mar 12, 4:12 PM CDTAreal Flood AdvisoryPAHDaviess, Hopkins, McLean, Muhlenberg, Webster2 hr
Mar 12, 4:19 PM CDTAreal Flood WarningPAHHenderson86 min
Mar 12, 5:14 PM CDTSevere Thunderstorm WarningPAHMuhlenberg16 min
Mar 12, 5:31 PM CDTSevere Thunderstorm WarningPAHMuhlenberg29 min
Mar 12, 6:15 PM CDTAreal Flood AdvisoryPAHDaviess, Hopkins, McLean, Muhlenberg, Webster103 min
Mar 12, 6:18 PM CDTSpecial Weather StatementPAHMuhlenberg42 min
Mar 12, 1:00 PM CDTSevere Thunderstorm WarningPAHFranklin, Jefferson, Perry45 min
Mar 12, 1:39 PM CDTSevere Thunderstorm WarningPAHFranklin, Jackson, Perry, Union, Williamson51 min
Mar 12, 1:46 PM CDTAreal Flood AdvisoryPAHFranklin, Hamilton, Jackson, Jefferson, Perry, Wayne and 1 more2 hr
Mar 12, 1:47 PM CDTSevere Thunderstorm WarningPAHFranklin, Hamilton, Jefferson, White43 min
Mar 12, 2:21 PM CDTSevere Thunderstorm WarningPAHFranklin, Hamilton, Johnson, Pope, Saline, Williamson39 min
Mar 12, 2:42 PM CDTFlash Flood WarningPAHFranklin73 min
Mar 12, 2:57 PM CDTSevere Thunderstorm WarningPAHGallatin, Hardin, Pope, Saline48 min
Mar 12, 4:15 PM CDTSevere Thunderstorm WarningPAHCarter45 min
Mar 12, 4:39 PM CDTSevere Thunderstorm WarningPAHButler, Carter, Wayne36 min
Mar 12, 4:50 PM CDTTornado WarningPAHButler, Carter, Wayne40 min
Mar 12, 5:19 PM CDTTornado WarningPAHButler, Wayne26 min
Mar 12, 5:29 PM CDTSevere Thunderstorm WarningPAHCarter27 min
Mar 12, 5:36 PM CDTTornado Warning Tornado observedConsiderable damage threatPAHButler24 min
Mar 12, 5:53 PM CDTSevere Thunderstorm WarningPAHStoddard27 min
Mar 12, 6:04 PM CDTSevere Thunderstorm WarningPAHButler18 min
Mar 12, 6:55 PM CDTSevere Thunderstorm WarningPAHButler, Ripley, Stoddard35 min

Nearby

Flash Flood Warnings in Missouri, 2020Every flash flood warning in 2020

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.