Alert archive / Illinois / Flash Flood Watches in 2020

Flash Flood Watch 4, NWS Lincoln, IL

May 16, 202021 counties in Illinois

NWS Lincoln, IL issued this flash flood watch at May 16, 2020, 9:06 PM CDT for 21 counties in Illinois. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued
May 16, 2020, 9:06 PM CDT (02:06 UTC)
Expired
May 18, 2020, 7:00 AM CDT
In force
34 hr
Issued by
NWS Lincoln, IL
Flood severity
None
All 21 counties

Cass County, IL, Champaign County, IL, Christian County, IL, DeWitt County, IL, Douglas County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 12 km from the middle of the area, began a volume at 02:08 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

Davenport, (KDVN), launched 00:00Z, 2.1 hours before the alert went out and 202 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, Davenport, at 00:00Z on 2020-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Davenport, at 00:00Z on 2020-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1150 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

790 
WGUS63 KILX 170206
FFAILX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Lincoln IL
906 PM CDT Sat May 16 2020

...Flash Flooding Possible Tonight and Sunday...

ILZ029>031-037-038-041>055-061-171000-
/O.NEW.KILX.FF.A.0004.200517T0206Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Peoria-Marshall-Woodford-Tazewell-McLean-Mason-Logan-De Witt-
Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-Sangamon-
Christian-Macon-Moultrie-Douglas-Shelby-
Including the cities of Peoria, Lacon, Eureka, Pekin, 
Bloomington, Normal, Havana, Lincoln, Clinton, Monticello, 
Champaign, Urbana, Danville, Beardstown, Petersburg, Winchester, 
Jacksonville, Springfield, Taylorville, Decatur, Sullivan, 
Tuscola, and Shelbyville
906 PM CDT Sat May 16 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING...

The National Weather Service in Lincoln has issued a

* Flash Flood Watch for portions of central Illinois, east 
  central Illinois, and west central Illinois, including the 
  following areas, in central Illinois, Christian, De Witt, 
  Logan, Macon, Marshall, Mason, McLean, Menard, Peoria, Piatt, 
  Sangamon, Shelby, Tazewell, and Woodford. In east central 
  Illinois, Champaign, Douglas, Moultrie, and Vermilion. In west 
  central Illinois, Cass, Morgan, and Scott. 

* Tonight Through 7 PM Sunday evening

* 1 to 2 inches of rain with locally higher amounts, falling on
  already saturated ground, could lead to flash flooding.

* Heavy rainfall could result in flooding of low lying or poor
  drainage areas, and ultimately dangerous flash flooding on
  smaller creeks and streams. Significant rises on larger streams
  and rivers will also be possible across the Illinois river
  valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
6 follow-up statements
615 
WGUS63 KILX 170809
FFAILX

Flood Watch
National Weather Service Lincoln IL
309 AM CDT Sun May 17 2020

...Flash Flooding Possible Today...

ILZ029>031-037-038-041>055-061-172100-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Peoria-Marshall-Woodford-Tazewell-McLean-Mason-Logan-De Witt-
Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-Sangamon-
Christian-Macon-Moultrie-Douglas-Shelby-
Including the cities of Peoria, Lacon, Eureka, Pekin, 
Bloomington, Normal, Havana, Lincoln, Clinton, Monticello, 
Champaign, Urbana, Danville, Beardstown, Petersburg, Winchester, 
Jacksonville, Springfield, Taylorville, Decatur, Sullivan, 
Tuscola, and Shelbyville
309 AM CDT Sun May 17 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* Portions of central Illinois, east central Illinois, and west 
  central Illinois, including the following areas, in central 
  Illinois, Christian, De Witt, Logan, Macon, Marshall, Mason, 
  McLean, Menard, Peoria, Piatt, Sangamon, Shelby, Tazewell, and 
  Woodford. In east central Illinois, Champaign, Douglas, 
  Moultrie, and Vermilion. In west central Illinois, Cass, 
  Morgan, and Scott. 

* Through 7 PM this evening.

* 1 to 2 inches of rain with locally higher amounts, falling on 
  already saturated ground, could lead to flash flooding. 

* Heavy rainfall could result in flooding of low lying or poor 
  drainage areas, and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible across the Illinois 
  river valley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
808 
WGUS63 KILX 170952
FFAILX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Lincoln IL
452 AM CDT Sun May 17 2020

...Flash Flooding Possible Today...

ILZ051-172100-
/O.EXT.KILX.FF.A.0004.000000T0000Z-200518T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon-
Including the city of Springfield
452 AM CDT Sun May 17 2020

...FLASH FLOOD WATCH FOR SUGAR CREEK BELOW SPAULDING DAM IN
SANGAMON COUNTY IN EFFECT THROUGH MONDAY MORNING...

The National Weather Service in Lincoln has issued a 

* Flash Flood Watch for Sugar Creek below Spaulding Dam in
  Sangamon County. 

* Through Monday morning

* At 430 AM CST, the dam operator reported that water is being
  released from Spaulding Dam at Lake Springfield. Because of 
  this, there is substantial flow of water in Sugar Creek 
  downstream of Spaulding Dam.
 
* If you live in the low lying ares below Spaulding Dam on Sugar
  Creek, keep abreast of the situation and stay alert to changing
  conditions.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

ILZ029>031-037-038-041>050-052>055-061-172100-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Peoria-Marshall-Woodford-Tazewell-McLean-Mason-Logan-De Witt-
Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-Christian-
Macon-Moultrie-Douglas-Shelby-
Including the cities of Peoria, Lacon, Eureka, Pekin, 
Bloomington, Normal, Havana, Lincoln, Clinton, Monticello, 
Champaign, Urbana, Danville, Beardstown, Petersburg, Winchester, 
Jacksonville, Taylorville, Decatur, Sullivan, Tuscola, 
and Shelbyville
452 AM CDT Sun May 17 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* Portions of central Illinois, east central Illinois, and west 
  central Illinois, including the following areas, in central 
  Illinois, Christian, De Witt, Logan, Macon, Marshall, Mason, 
  McLean, Menard, Peoria, Piatt, Shelby, Tazewell, and Woodford. 
  In east central Illinois, Champaign, Douglas, Moultrie, and 
  Vermilion. In west central Illinois, Cass, Morgan, and Scott. 

* Through this evening

* 1 to 2 inches of rain with locally higher amounts, falling on 
  already saturated ground, could lead to flash flooding. 

* Heavy rainfall could result in flooding of low lying or poor 
  drainage areas, and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible across the Illinois 
  river valley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Auten
272 
WGUS63 KILX 172035
FFAILX

Flood Watch
National Weather Service Lincoln IL
335 PM CDT Sun May 17 2020

ILZ029>031-037-041-047>050-172145-
/O.CAN.KILX.FF.A.0004.000000T0000Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Peoria-Marshall-Woodford-Tazewell-Mason-Cass-Menard-Scott-Morgan-
Including the cities of Peoria, Lacon, Eureka, Pekin, Havana, 
Beardstown, Petersburg, Winchester, and Jacksonville
335 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Illinois and west
central Illinois has been cancelled.

$$

ILZ051-180000-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon-
Including the city of Springfield
335 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch continues for

* A portion of central Illinois, including Sangamon County. 

* Through Monday morning

* As of Sunday afternoon, the dam operator reported that water is
  being released from Spaulding Dam at Lake Springfield. Because 
  of this, there is substantial flow of water in Sugar Creek 
  downstream of Spaulding Dam. 

* If you live in the low lying ares below Spaulding Dam on Sugar 
  Creek, keep abreast of the situation and stay alert to 
  changing conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

ILZ038-042>046-052>055-061-180000-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McLean-Logan-De Witt-Piatt-Champaign-Vermilion-Christian-Macon-
Moultrie-Douglas-Shelby-
Including the cities of Bloomington, Normal, Lincoln, Clinton, 
Monticello, Champaign, Urbana, Danville, Taylorville, Decatur, 
Sullivan, Tuscola, and Shelbyville
335 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

The Flash Flood Watch continues for

* Portions of central Illinois and east central Illinois,
  including the following counties, in central Illinois, 
  Christian, De Witt, Logan, Macon, McLean, Piatt, and Shelby. In 
  east central Illinois, Champaign, Douglas, Moultrie, and 
  Vermilion. 

* Until 7 PM CDT this evening

* 1 to 2 inches of rain with locally higher amounts, falling on 
  already saturated ground, could lead to flash flooding. 

* Heavy rainfall could result in flooding of low lying or poor 
  drainage areas, and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible across the Illinois 
  river valley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Miller
094 
WGUS63 KILX 172358
FFAILX

Flood Watch
National Weather Service Lincoln IL
658 PM CDT Sun May 17 2020


ILZ038-042>046-052>055-061-180100-
/O.CAN.KILX.FF.A.0004.000000T0000Z-200518T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McLean-Logan-De Witt-Piatt-Champaign-Vermilion-Christian-Macon-
Moultrie-Douglas-Shelby-
Including the cities of Bloomington, Normal, Lincoln, Clinton, 
Monticello, Champaign, Urbana, Danville, Taylorville, Decatur, 
Sullivan, Tuscola, and Shelbyville
658 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Illinois and east
central Illinois has been cancelled.

$$

ILZ051-180800-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon-
Including the city of Springfield
658 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch continues for

* A portion of central Illinois, including the following area, 
  Sangamon. 

* Through Monday morning

* The dam operator reported that water is being released from 
  Spaulding Dam at Lake Springfield. Because of this, there is 
  substantial flow of water in Sugar Creek downstream of Spaulding
  Dam. 

* If you live in the low lying ares below Spaulding Dam on Sugar 
  Creek, keep abreast of the situation and stay alert to 
  changing conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
Goetsch
913 
WGUS63 KILX 180128
FFAILX

Flood Watch
National Weather Service Lincoln IL
828 PM CDT Sun May 17 2020

ILZ051-181200-
/O.CON.KILX.FF.A.0004.000000T0000Z-200518T1200Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon-
828 PM CDT Sun May 17 2020

...FLASH FLOOD WATCH FOR SUGAR CREEK BELOW SPAULDING DAM IN
SANGAMON COUNTY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...

The Flash Flood Watch continues for

* Sugar Creek below Spaulding Dam in Sangamon County.

* Until 7 AM CDT Monday

* At 825 PM CDT, the dam operator reported that water is being 
  released from Spaulding Dam at Lake Springfield. Because of 
  this, there is substantial flow of water in Sugar Creek 
  downstream of Spaulding Dam. 

* If you live in the low lying ares below Spaulding Dam on Sugar 
  Creek, keep abreast of the situation and stay alert to 
  changing conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
914 
WGUS63 KILX 181220
FFAILX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Lincoln IL
720 AM CDT Mon May 18 2020

ILZ051-191200-
/O.EXP.KILX.FF.A.0004.000000T0000Z-200518T1200Z/
/O.NEW.KILX.FF.A.0005.200518T1220Z-200519T1200Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon-
720 AM CDT Mon May 18 2020

...FLASH FLOOD WATCH FOR SUGAR CREEK BELOW SPAULDING DAM IN
SANGAMON COUNTY IN EFFECT THROUGH TUESDAY MORNING...
...FLASH FLOOD WATCH FOR SUGAR CREEK BELOW SPAULDING DAM IN
SANGAMON COUNTY HAS EXPIRED...

The National Weather Service in Lincoln has issued a

* Flash Flood Watch for Sugar Creek below Spaulding Dam in 
  Sangamon County. 

* Through Tuesday morning

* At 700 AM CDT, the dam operator reported that water is
  continuing to be released from the Spaulding Dam at Lake 
  Springfield. Because of this, there is substantial flow of water
  in Sugar Creek downstream of Spaulding Dam. 

* If you live in the low lying ares below Spaulding Dam on Sugar
  Creek, keep abreast of the situation and stay alert to changing
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Auten

What forecasters said that day

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

NWS Lincoln, IL wrote its last area forecast discussion before this flash flood watch went out at May 16, 6:54 PM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, May 16, 6:54 PM CDT, 2 hours 12 minutes before
Area Forecast Discussion
National Weather Service Lincoln IL
654 PM CDT Sat May 16 2020

.SYNOPSIS...
Issued at 237 PM CDT Sat May 16 2020

A storm system over the southern plains will approach the Midwest
tonight and Sunday bringing some thunderstorms and a potential of
an inch or two of rain. Clouds will be slow to move out early
next week, but by the later half of the week, high pressure will
build into Illinois bringing dry and warm weather.

&&

.SHORT TERM...(This evening through Sunday)
ISSUED AT 237 PM CDT Sat May 16 2020

Scattered showers have developed early this afternoon along and
west of the Illinois River north of KPIA where residual low-level
moisture remains from this morning's fog. The leading edge of the
more substantial rainfall is near a Burlington IA to Evansville IN
line. This main area of rainfall is being fed by a strong
southerly flow from dew points in the lower 70s in the lower
Mississippi River Valley induced by a strong low pressure system
over northeast TX. This moisture will combine with synoptic lift
from a northern stream wave currently over the central Plains to
produce an extended period of isentropic lift and occasional heavy
rainfall. Latest GEFS ensemble shows some range in forecast
amounts but all members indicate over an inch and a half of
precipitation tonight and Sunday. Forecasted precipitable water
amounts of around 1.75 inches are near records for seasonal
climatologies. The axis of heaviest rainfall seems to be set-up
northeast to southwest late tonight and early Sunday where over
two inches will be possible. This maximum is southeast of areas
that received several inches of rain Thursday and will hold off on
issuing a FF watch at this time.

A cold front will push across the area Sunday from west to east.
The best combination of possible enough sun to destabilize the
atmosphere and forcing will be generally east of I-55 and would
not be surprised if several strong storms embed themselves in a
linear MCS across eastern Illinois during the afternoon.

With late passage of the front Sunday afternoon, temperatures
should be able to reach near seasonal normals if any breaks in
cloud cover develop.

.LONG TERM...(Sunday night through Saturday)
ISSUED AT 237 PM CDT Sat May 16 2020

As the energy from Sunday's system cuts off and disconnects from
the flow, it will likely just drift across the eastern U.S. for
several days. Models diverge significantly on the evolution of the
low early next week. the run-to-run trend continues to suggest
that the low will stall further west and may actually retrograde
back into the area by midweek. Will be trending up with PoPs and
down with temps through Tuesday with some potential for even more
adjustments if that trend continues. Also favoring a west
solution is the expected movement up the east coast of the
tropical system off the Florida Coast.

Models differ on when the cut-off low will lift and begin to be
impacted by the northern stream again. Although the evolution is
slower than previous packages, the models still show a drying out
trend and substantial warming with 850 mb temps reaching around
15C by next Saturday.

&&

.AVIATION...(For the 00Z TAFS through 00Z Sunday evening)
Issued at 654 PM CDT Sat May 16 2020

Scattered showers and thunderstorms will continue much of the
night with predominant cigs decreasing to MVFR levels after 04Z
for most sites, and IFR north of I-72 after 08-09Z. MVFR vsbys can
be expected as well. Until then, MVFR or worse conditions will be
more isolated, but possible in and around stronger storms. Gradual
improvement in cigs/vsbys expected 16-20Z. After another line of
stronger thunderstorms develops Sunday afternoon, precipitation
looks to end near 00Z Monday. Winds E-SE 7-12 kts overnight,
becoming S-SW after 18Z and increasing to 10-14 kts with gusts
around 20-25 kts.

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SYNOPSIS...Barker
SHORT TERM...Barker
LONG TERM...Barker
AVIATION...37
Hazardous weather outlook, May 16, 3:11 PM CDT, 5 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Lincoln IL
311 PM CDT Sat May 16 2020

ILZ029>031-036-037-040-041-047-171100-
Cass-Fulton-Marshall-Mason-Peoria-Schuyler-Tazewell-Woodford-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of central
Illinois and west central Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will continue into tonight. Severe weather is not
expected at this time.

The Illinois River at Henry and downstream will remain in flood
through next week.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Additional rainfall will around an inch. This
amount of rain may cause ponding of water in flood prone areas.

The Illinois River at Henry and downstream will remain in flood
through next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ027-028-171100-
Knox-Stark-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of central
Illinois and west central Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will move back into the area late this afternoon and
continue into tonight. Severe weather is not expected at this
time.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Additional rainfall will be under an inch.
However given recent rains, this amount of rain may cause ponding
of water in flood prone areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ038-042-043-171100-
De Witt-Logan-McLean-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of central
Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will move back into the area late this afternoon and
continue into tonight. Severe weather is not expected at this
time.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Additional rainfall will range from 1 to 2
inches. This amount of rain may cause ponding of water in flood
prone areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ044>046-053>057-062-073-171100-
Champaign-Coles-Cumberland-Douglas-Edgar-Lawrence-Macon-Moultrie-
Piatt-Vermilion-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of central
Illinois, east central Illinois and southeast Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will move back into the area late this afternoon and
continue into tonight. Severe weather is not expected at this
time.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Some of the storms could be strong to severe
with isolated damaging winds and hail up to 1 inch possible.
Additional rainfall will range from 1 to 1.5 inches. This amount
of rain may cause ponding of water in flood prone areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ063-068-171100-
Clark-Crawford-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of east central
Illinois and southeast Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will move back into the area late this afternoon and
continue into tonight. Severe weather is not expected at this
time.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Some of the storms could be strong to severe
with isolated damaging winds and hail up to 1 inch possible.

The Wabash River in Crawford and Clark Counties is expected to go
into minor flooding late Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

ILZ048>052-061-066-067-071-072-171100-
Christian-Clay-Effingham-Jasper-Menard-Morgan-Richland-Sangamon-
Scott-Shelby-
311 PM CDT Sat May 16 2020

This Hazardous Weather Outlook is for portions of central
Illinois, southeast Illinois and west central Illinois.

.DAY ONE...TONIGHT...

Thunderstorms will move back into the area late this afternoon and
continue into tonight. Some of the storms will be capable of
producing strong wind gusts, hail, and heavy rainfall.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

Thunderstorms will occur Sunday, but should come to an end during
the late afternoon. Some of the storms could be strong to severe
with isolated damaging winds and hail up to 1 inch possible.
Additional rainfall will range from 1 to 2 inches. This amount of
rain may cause ponding of water in flood prone areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

Barker

In the hours before

Local storm report, May 16, 3:52 PM CDT, 5 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
352 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0329 PM     HAIL             FRANKLIN                39.62N 90.05W
05/16/2020  E0.75 INCH       MORGAN             IL   EMERGENCY MNGR

0345 PM     FLASH FLOOD      2 NW FRANKLIN           39.64N 90.07W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            WATER OVER THE ROAD ON ILLINOIS ROUTE 104 AT REES CORNER.
            TWO CARS ARE STRANDED.

&&

MILLER
Local storm report, May 16, 6:31 PM CDT, 2 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
631 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     FLASH FLOOD      MANCHESTER              39.54N 90.33W
05/16/2020                   SCOTT              IL   LAW ENFORCEMENT

            DELAYED REPORT. A VIADUCT AND SEVERAL STREETS IN TOWN
            FLOODED. FLOODING HAS SUBSIDED AS OF 630 PM.

&&

MILLER
Local storm report, May 16, 6:59 PM CDT, 2 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
659 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     TSTM WND GST     FRANKLIN                39.62N 90.05W
05/16/2020  M60 MPH          MORGAN             IL   EMERGENCY MNGR

            60 MPH WIND GUST DAMAGED A SIGN IN FRANKLIN.

0635 PM     FLOOD            FRANKLIN                39.62N 90.05W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            EXTENSIVE FLOODING ON AREA ROADS FROM EARLIER RAINFALL OF
            2.50 TO 3.00 INCHES.

0635 PM     FLOOD            MURRAYVILLE             39.58N 90.25W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            EXTENSIVE FLOODING ON AREA ROADS FROM MURRAYVILLE TO THE
            SCOTT-MORGAN COUNTY LINE DUE TO EARLIER RAINFALL OF 2.50
            TO 3.50 INCHES.

&&

MILLER
Local storm report, May 16, 7:00 PM CDT, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LINCOLN IL
700 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     FLASH FLOOD      MANCHESTER              39.54N 90.33W
05/16/2020                   SCOTT              IL   LAW ENFORCEMENT

            DELAYED REPORT. A VIADUCT AND SEVERAL STREETS IN TOWN
            FLOODED. FLOODING HAS SUBSIDED AS OF 630 PM.

0315 PM     TSTM WND GST     FRANKLIN                39.62N 90.05W
05/16/2020  M60.00 MPH       MORGAN             IL   EMERGENCY MNGR

            60 MPH WIND GUST DAMAGED A SIGN IN FRANKLIN.

0329 PM     HAIL             FRANKLIN                39.62N 90.05W
05/16/2020  E0.75 INCH       MORGAN             IL   EMERGENCY MNGR

0345 PM     FLASH FLOOD      2 NW FRANKLIN           39.64N 90.07W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            WATER OVER THE ROAD ON ILLINOIS ROUTE 104 AT REES CORNER.
            TWO CARS ARE STRANDED.

0635 PM     FLOOD            FRANKLIN                39.62N 90.05W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            EXTENSIVE FLOODING ON AREA ROADS FROM EARLIER RAINFALL OF
            2.50 TO 3.00 INCHES.

0635 PM     FLOOD            MURRAYVILLE             39.58N 90.25W
05/16/2020                   MORGAN             IL   EMERGENCY MNGR

            EXTENSIVE FLOODING ON AREA ROADS FROM MURRAYVILLE TO THE
            SCOTT-MORGAN COUNTY LINE DUE TO EARLIER RAINFALL OF 2.50
            TO 3.50 INCHES.

&&

MILLER
Local storm report, May 16, 8:54 PM CDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
854 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     FLASH FLOOD      NW SPRINGFIELD          39.80N 89.64W
05/16/2020                   SANGAMON           IL   EMERGENCY MNGR

            NUMEROUS REPORTS OF FLOODED ROADWAYS

&&

37
Local storm report, May 16, 8:56 PM CDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
856 PM CDT SAT MAY 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0852 PM     HEAVY RAIN       CAPITAL AIRPORT         39.84N 89.68W
05/16/2020  M1.32 INCH       SANGAMON           IL   ASOS

            RAINFALL SINCE 4 PM AT SPRINGFIELD AIRPORT

&&

07

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 5:33 AM CDTRiver Flood WarningILXFulton, Knox64 hr
May 17, 5:37 AM CDTRiver Flood WarningILXPiatt7 days
May 17, 10:56 AM CDTAreal Flood WarningILXSangamon6 hr
May 17, 11:37 AM CDTRiver Flood WarningILXCass, Mason, Menard5 days
May 17, 11:37 AM CDTRiver Flood WarningILXCass, Mason8 days
May 17, 4:09 PM CDTTornado WarningILXMacon17 min
May 17, 4:48 PM CDTSpecial Weather StatementILXPiatt42 min
May 17, 4:54 PM CDTSpecial Weather StatementILXClark, Crawford, Lawrence, Richland51 min
May 17, 5:14 PM CDTSevere Thunderstorm WarningILXCrawford, Lawrence46 min
May 17, 5:30 PM CDTSpecial Weather StatementILXChampaign, Douglas45 min
May 17, 5:50 PM CDTSpecial Weather StatementILXLawrence25 min
May 17, 6:02 PM CDTTornado WarningILXLawrence28 min
May 17, 6:11 PM CDTSevere Thunderstorm WarningILXLawrence19 min
May 17, 6:21 PM CDTSevere Thunderstorm WarningILXCrawford, Lawrence16 min
May 17, 6:52 PM CDTSpecial Weather StatementILXVermilion53 min

Nearby

Flash Flood Watches in Illinois, 2020Every flash flood watch 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.