Alert archive / Illinois / Flash Flood Warnings in 2020
Flash Flood Warning 61, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Jun 30, 2020, 5:50 PM CDT for Ballard County, Kentucky; Alexander County, Pulaski County, Illinois; Scott 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
- Jun 30, 2020, 5:50 PM CDT (22:50 UTC)
- Expired
- Jun 30, 2020, 8:10 PM CDT
- In force
- 2 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Alexander County, IL, Pulaski County, IL, Ballard County, KY, Scott County, MO
The radar
The Paducah radar (KPAH), 44 km from the middle of the area, began a volume at 22:54 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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 262 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.
- Mixed-layer CAPE
- 394 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1039 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Jun 30, 3:29 PM CDT, 2 hours 21 minutes earlier.
Area forecast discussion, Jun 30, 3:29 PM CDT, 2 hours 21 minutes before
Area Forecast Discussion
National Weather Service Paducah KY
329 PM CDT Tue Jun 30 2020
.SHORT TERM...(Tonight through Thursday night)
Issued at 320 PM CDT Tue Jun 30 2020
Pattern remains essentially stagnant, with meandering mid/upper
low situated over the mid MS River Valley, and very moist and
unstable air in place over the lower OH Valley. PWATs continue to
hover up close to 2 inches or so, extremely high for even this
time of year. Unfortunately, this leaves us looking to more of
the same, with additional rounds of thunderstorms with torrential
downpours likely at many locations along the MS River Valley
tonight into Wednesday. the flow around the upper low will become
more nwly with time, and should support most activity moving sse
down the river valley. One will likely impact the region late
this afternoon and into the evening, evolving from just south the
St Louis metro area. Another is expected is congeal later tonight
into Wed morning, possibly a bit farther west than the first.
Consequently, will continue the ongoing flash flood watch tonight.
Decided to go ahead and extent it through tomorrow at this point,
with much of the of the region in marginal to slight risk on the
WPC Day 2 Excessive Rain Outlook. Once again, if we manage to get
some decent heating Wed during the day, we cannot rule out an
isolated damaging wind gust here and there. Overall, severe risk
looks to be on the low side, esp compared to the heavy rain
potential.
Eventually, as we head into Wed night/Thu time frame, upper level
ridging should begin to build in from the west. This would lessen
the shower/thunderstorm coverage, even during the daylight hours.
Hot and humid conditions will remain, however, with highs up near
90 and dew points in the lower half of the 70s.
.LONG TERM...(Friday through Tuesday)
Issued at 320 PM CDT Tue Jun 30 2020
There is fairly good confidence on a less active and seasonably warm
pattern through the extended.
Surface high pressure will nudge southward into our cwa late this
week. With a northeast surface flow in place, somewhat drier air
will work into the region. This will result in limited PoP chances,
and possibly completely dry conditions on Friday and Saturday.
There is some model variability later in the weekend and early next
week with regards to how far north the deeper moisture associated
with a weak upper low over the Gulf Coast states ends up making it.
The best dynamics and thus majority of precipitation is expected to
remain south of our area. However, there is enough of a signal to
continue with the low chance PoPs Sunday through Tuesday.
With some influence from the upper ridge axis situated to our west,
temperatures look to remain near early July normals, with highs
around 90/lower 90s and lows around 70. Humidity levels will remain
fairly uncomfortable with dewpoints in the mid 60s to around 70, but
this won't be as oppressive compared to the current airmass in
place. Heat index values look to top out in the mid 90s most days.
&&
.AVIATION...
Issued at 1257 PM CDT Tue Jun 30 2020
Expect occasional showers and thunderstorms to become more
widespread as the afternoon progresses, especially across
southern IL. Local MVFR to IFR conditions within storms, along
with variable gusty winds up to 30 kts. Tonight, the chance of
showers and storms will continue. A few strong storms possible
Mainly VFR, but local MVFR/IFR with convection again. Winds will
be variable and mostly light, though gusty with storms.
&&
.PAH WATCHES/WARNINGS/ADVISORIES...
IL...Flash Flood Watch through Wednesday morning for ILZ075>078-
080>094.
MO...Flash Flood Watch through Wednesday morning for MOZ076-086-087-
110>112-114.
IN...Flash Flood Watch through Wednesday morning for INZ081-082-
085>088.
KY...Flash Flood Watch through Wednesday morning for KYZ001>022.
&&
SHORT TERM...GM
LONG TERM...SPHazardous weather outlook, Jun 30, 3:49 PM CDT, 2 hours 1 minute before
Hazardous Weather Outlook National Weather Service Paducah KY 349 PM CDT Tue Jun 30 2020 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-012100- 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- 349 PM CDT Tue Jun 30 2020 This Hazardous Weather Outlook is for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. .DAY ONE...This Afternoon and Tonight A Flash Flood Watch is in effect for most of the region through tonight. Refer to the Watch product for details. There is a marginal risk of severe storms through tonight. Isolated damaging winds and marginally severe hail will be the primary storm hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a continued chance for thunderstorms Wednesday and Thursday. Isolated severe storms cannot be ruled out, but the main storm hazards should come with lightning and torrential downpours. Isolated storms are in the forecast Friday on into the weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. Please report any observed flooding and/or heavy rainfall amounts.
In the hours before
Special weather statement, Jun 30, 4:56 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Paducah KY
456 PM CDT Tue Jun 30 2020
ILZ084-088-MOZ076-086-087-100-302245-
Jackson IL-Union IL-Wayne MO-Bollinger MO-Cape Girardeau MO-Perry MO-
456 PM CDT Tue Jun 30 2020
...SIGNIFICANT WEATHER ADVISORY FOR UNION...SOUTHERN JACKSON...
BOLLINGER...SOUTHEASTERN PERRY...NORTHEASTERN WAYNE AND CAPE
GIRARDEAU COUNTIES UNTIL 545 PM CDT...
At 454 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Murphysboro Illinois to near Marquand
Missouri. Movement was southeast at 30 mph.
Half inch hail and wind gusts up to 50 mph will be possible with
these storms.
Locations impacted include...
Cape Girardeau, Jackson, Murphysboro, Anna, Jonesboro, Marble Hill,
Trail Of Tears State Park, Cobden, Grand Tower, Altenburg,
Dutchtown, Millersville, Alliance and Cascade.
LAT...LON 3732 9032 3731 9015 3750 9014 3786 8940
3747 8904 3740 8904 3733 8918 3734 8948
3729 8952 3725 8949 3723 8962 3718 8970
3715 8970 3714 8976 3713 8976 3713 8996
3705 8996 3704 9015 3701 9015 3699 9017
TIME...MOT...LOC 2154Z 331DEG 28KT 3776 8944 3736 9024
YorkLocal storm report, Jun 30, 5:10 PM CDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
510 PM CDT TUE JUN 30 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0509 PM FLASH FLOOD 6 NNW BROUGHTON 38.01N 88.50W
06/30/2020 HAMILTON IL 911 CALL CENTER
HIGHWAY 142 FLOODED SOUTH OF MCLEANSBORO IN
AT LEAST TWO SPOTS. ONE CAR STALLED IN HIGH
WATER.
&&
DWSSpecial weather statement, Jun 30, 5:32 PM CDT, 18 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 7:26 PM CDT | Special Weather Statement | PAH | Trigg | 49 min |
| Jun 30, 3:26 AM CDT | Flash Flood Watch | PAH | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 40 hr |
| Jun 30, 8:20 AM CDT | Flash Flood Warning | PAH | Caldwell, Hopkins | 3 hr |
| Jun 30, 1:41 PM CDT | Special Weather Statement | PAH | Graves | 34 min |
| Jun 30, 2:08 PM CDT | Special Weather Statement | PAH | Ballard | 52 min |
| Jun 30, 2:33 PM CDT | Special Weather Statement | PAH | Ballard, McCracken | 42 min |
| Jun 30, 2:56 PM CDT | Special Weather Statement | PAH | McCracken | 34 min |
| Jun 30, 3:07 PM CDT | Flash Flood Warning | PAH | McCracken | 113 min |
| Jun 30, 3:25 PM CDT | Special Weather Statement | PAH | McCracken, Marshall | 50 min |
| Jun 30, 3:57 PM CDT | Special Weather Statement | PAH | Graves, Marshall | 48 min |
| Jun 30, 4:33 PM CDT | Flash Flood Warning | PAH | Henderson, Union | 4 hr |
| Jun 30, 4:34 PM CDT | Special Weather Statement | PAH | Webster | 41 min |
| Jun 30, 4:46 PM CDT | Special Weather Statement | PAH | Ballard | 44 min |
| Jun 30, 5:02 PM CDT | Severe Thunderstorm Warning | PAH | Ballard, Carlisle | 15 min |
| Jun 30, 5:27 PM CDT | Flash Flood Warning | PAH | Daviess, Henderson, McLean | 2 hr |
| Jun 30, 5:32 PM CDT | Special Weather Statement | PAH | Daviess | 43 min |
| Jun 30, 6:13 PM CDT | Special Weather Statement | PAH | Ballard | 32 min |
| Jun 30, 6:42 PM CDT | Areal Flood Advisory | PAH | Carlisle, Fulton, Graves, Hickman | 2 hr |
| Jun 30, 6:48 PM CDT | Special Weather Statement | PAH | Fulton | 42 min |
| Jun 29, 7:16 PM CDT | Special Weather Statement | PAH | Hardin | 44 min |
| Jun 29, 9:22 PM CDT | Flash Flood Warning | PAH | Gallatin, White | 2 hr |
| Jun 29, 9:28 PM CDT | Special Weather Statement | PAH | Wabash | 47 min |
| Jun 30, 4:39 AM CDT | Flash Flood Warning | PAH | Jackson, Johnson, Pope, Saline, Union, Williamson | 6 hr |
| Jun 30, 5:05 AM CDT | Flash Flood Warning | PAH | Hamilton | 3 hr |
| Jun 30, 5:50 AM CDT | Flash Flood Warning | PAH | Franklin, Hamilton, Perry | 4 hr |
| Jun 30, 11:15 AM CDT | Flash Flood Warning | PAH | Wayne | 112 min |
| Jun 30, 1:46 PM CDT | Flash Flood Warning | PAH | Alexander, Johnson, Union | 6 hr |
| Jun 30, 1:57 PM CDT | Special Weather Statement | PAH | Johnson | 33 min |
| Jun 30, 2:59 PM CDT | Special Weather Statement | PAH | Jackson, Perry | 46 min |
| Jun 30, 3:15 PM CDT | Flash Flood Warning | PAH | Perry | 3 hr |
| Jun 30, 3:35 PM CDT | Flash Flood Warning | PAH | Franklin, Hamilton, White | 5 hr |
| Jun 30, 4:54 PM CDT | Flash Flood Warning | PAH | Jackson | 77 min |
| Jun 30, 4:56 PM CDT | Special Weather Statement | PAH | Jackson, Union | 49 min |
| Jun 30, 5:10 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union | 50 min |
| Jun 30, 5:27 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski, Union | 48 min |
| Jun 30, 4:54 AM CDT | Flash Flood Warning | PAH | Cape Girardeau | 3 hr |
| Jun 30, 4:22 PM CDT | Special Weather Statement | PAH | Perry | 38 min |
| Jun 30, 5:16 PM CDT | Flash Flood Warning | PAH | Bollinger, Cape Girardeau | 2 hr |
| Jun 30, 6:03 PM CDT | Special Weather Statement | PAH | Bollinger, Wayne | 42 min |
| Jun 30, 6:15 PM CDT | Flash Flood Warning | PAH | Wayne | 67 min |
| Jun 30, 6:20 PM CDT | Special Weather Statement | PAH | New Madrid | 40 min |
| Jun 30, 6:36 PM CDT | Areal Flood Warning | PAH | Perry | 2 hr |
Nearby
Flash Flood Warnings in Illinois, 2020Flash Flood Warnings in Kentucky, 2020Flash 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.