Alert archive / Illinois / Flash Flood Warnings in 2013

Flash Flood Warning 59, NWS Lincoln, IL

July 20, 2013Richland County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 20, 2013, 4:59 PM CDT for Richland County, Illinois. It was in force for 3 hr. 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 20, 2013, 4:59 PM CDT (21:59 UTC)
Expired: Jul 20, 2013, 8:00 PM CDT
In force: 3 hr
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Flood severity: None

County Richland County, IL

The radar

The Evansville,IN radar (KVWX), 54 km from the middle of the area, began a volume at 22:02 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.0 hours before the alert went out and 174 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: 2157 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

882 
WGUS53 KILX 202159
FFWILX
ILC159-210100-
/O.NEW.KILX.FF.W.0059.130720T2159Z-130721T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
459 PM CDT SAT JUL 20 2013

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RICHLAND COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 800 PM CDT.

* AT 456 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING
  ACROSS THE WARNED AREA. IN OLNEY...WATER WAS ABOUT 2.5 FEET 
  DEEP ON LUCAS STREET JUST EAST OF HIGHWAY 130...AND WAS ABOUT
  8 INCHES DEEP ON PORTIONS OF WEST BUTLER STREET. RAINFALL SINCE
  4 PM HAS RANGED FROM 2 TO 3 INCHES OVER NORTHERN AND CENTRAL
  PORTIONS OF RICHLAND COUNTY. ANOTHER HALF TO 1 INCH IS LIKELY
  IN SOUTHERN RICHLAND COUNTY SOUTH OF HIGHWAY 50...WITH ANOTHER
  QUARTER TO HALF INCH IN NORTHERN PARTS OF THE COUNTY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...OLNEY...
  CALHOUN...CLAREMONT...DUNDAS...NOBLE...PARKERSBURG AND SCHNELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
LINCOLN.

&&

LAT...LON 3857 8816 3859 8816 3859 8825 3860 8826
      3885 8826 3885 8791 3860 8791 3857 8792
      3856 8815

$$
GEELHART

1 follow-up statement

512 
WGUS73 KILX 210026
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
726 PM CDT SAT JUL 20 2013

ILC159-210040-
/O.CAN.KILX.FF.W.0059.000000T0000Z-130721T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RICHLAND IL-
726 PM CDT SAT JUL 20 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR RICHLAND COUNTY IS
CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. 

RADAR INDICATED THAT THE HEAVIEST RAIN OCCURRED OVER THE NORTHERN
PORTIONS OF THE COUNTY NORTH OF HIGHWAY 50...WITH 1.5 TO 2.5 INCHES
COMMON. 

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL 
LAW ENFORCEMENT AGENCY.

LAT...LON 3857 8816 3859 8816 3859 8825 3860 8826
      3885 8826 3885 8791 3860 8791 3857 8792
      3856 8815

$$
GEELHART

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 Lincoln, IL wrote its last area forecast discussion before this flash flood warning went out at Jul 20, 2:48 PM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, Jul 20, 2:48 PM CDT, 2 hours 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
248 PM CDT SAT JUL 20 2013

.DISCUSSION...
ISSUED 248 PM CDT SAT JUL 20 2013

MODELS LOOK IN VERY GOOD AGREEMENT IN THE SHORT TERM PERIOD...AS
MAIN CONCERN IS PCPN CHANCES AND TEMPS. EXTENDED MODELS HAVE SOME
DIFFERENCES BUT THEY ARE MINOR AND DO NOT CHANGE THE OVERALL
FORECAST THAT MUCH...EXCEPT TO BRING IN SOME DRIER PERIODS DURING
MIDDLE OF THE WEEK. SO OVERALL CONFIDENCE IN FORECAST IS GOOD.

SHORT TERM...TONIGHT THROUGH TUESDAY

FRONT HAS BEEN MOVING SOUTH THROUGH THE AREA TODAY AND WILL
CONTINUE TO MOVE SOUTH LATE THIS AFTERNOON AND EVENING.
THUNDERSTORMS HAVE DEVELOPED ALONG THE FRONT AS IT HAS INTERACTED
WITH JUICY AIR WITH LOWER TO MIDDLE 70S DEWPOINTS. WITH
THUNDERSTORMS THAT HAVE NOW DEVELOPED JUST NORTH OF I-70...WILL
HAVE A LATE AFTERNOON PERIOD IN THE WORDED FORECAST ONCE IT IS
ISSUED. OTHERWISE...TONIGHT THUNDERSTORMS WILL JUST BE IN THE
SOUTHEAST JUST FOR THIS EVENING AND THEN DRY FOR AFTER MIDNIGHT.

AS CAN BE SEEN ON VISIBLE SATELLITE AND RADAR IMAGES OUT
WEST...THE FRONT EXTENDS BACK TO THE NORTHWEST WITH MORE SHOWERS
AND THUNDERSTORMS. THIS FRONT WILL BE THE FOCUS FOR MORE
DEVELOPMENT TOMORROW THAT WILL ADVECT TOWARD WESTERN ILLINOIS
TOMORROW MORNING AND CENTRAL ILLINOIS TOMORROW AFTERNOON.
THUNDERSTORM CHANCES WILL CONTINUE INTO TOMORROW NIGHT AS A SHORT
WAVE MOVES ACROSS THE AREA AS WELL. POPS WILL BE HIGHEST TOMORROW
NIGHT DUE TO THIS SHORT WAVE AS WELL. PCPN CHANCES WILL CONTINUE
INTO MONDAY...THOUGH LOWER...AS THE SHORT WAVE MOVES EAST OF THE
AREA.

A SECOND WAVE OR MCS WILL THEN DEVELOP OUT WEST AND MOVE INTO THE
AREA FOR MON NIGHT INTO TUESDAY. THIS WILL BRING CONTINUED
THUNDERSTORM CHANCES FROM WEST TO EAST. CHANCES THEN DIMINISH FROM
THE WEST TUE INTO TUE NIGHT.

TEMP WILL REMAIN WARM AND WITH HIGH DEWPOINTS...MUGGY CONDITIONS
WILL CONTINUE. AFTERNOON HIGHS ARE EXPECTED TO STILL REACH INTO
THE MIDDLE TO UPPER 80S WITH NEAR 90 DEGREES IN THE SOUTHEAST ON
MONDAY.

LONG TERM...TUESDAY NIGHT THROUGH SATURDAY

AS THE SECOND WAVE MOVES THROUGH THE AREA...THUNDERSTORMS WILL
PROBABLY STILL BE POSSIBLE IN THE SOUTHEAST SECTIONS FOR TUE
NIGHT...SO WILL KEEP CHC POPS THERE. THIS SECOND WAVE SHOULD BE
STRONG ENOUGH TO PUSH THE FRONT WELL SOUTH AND BRING A PERIOD OF
DRY WEATHER TO THE AREA. UPPER LEVEL FLOW WILL ALSO BE OUT OF THE
NORTHWEST...SO CONDITIONS SHOULD BE A TAD COOLER DURING THE DAY.
CURRENT EXTENDED MODELS INDICATE THAT DRY WEATHER WILL PREVAIL
THROUGH THURSDAY NIGHT AS MODELS DO NOT SHOW ANY SHORT WAVES
MOVING THROUGH THE AREA DURING THAT PERIOD. HOWEVER...MODELS DO
NOT DO WELL WITH SMALL WEAK FEATURES IN NORTHWEST FLOW SO DON'T BE
SURPRISED IF THIS CHANGES OVER THE NEXT COUPLE OF DAYS. THE NEXT
REAL CHANCE OF SHOWERS AND THUNDERSTORMS APPEARS NOT TO BE UNTIL
FRIDAY THROUGH SATURDAY AS A MID LEVEL TROUGH MOVES TOWARD THE
AREA. CURRENTLY THIS SYSTEM LOOKS TO REMAIN WEST OF THE AREA BUT
STILL BRING PCPN TO ALL OF CENTRAL AND SOUTHEAST ILLINOIS FOR END
OF THE WEEK.

TEMPS WILL REMAIN AROUND NORMAL BUT THEN BECOME
COOLER...POSSIBLY...AT THE END OF THE WEEK AND BEGINNING OF THE WEEKEND.

AUTEN
&&

.AVIATION...
ISSUED 1251 PM CDT SAT JUL 20 2013

WEAK COLD FRONT HAD SETTLED SOUTH OF THE TERMINALS BY 1230 PM WITH
LIGHT NORTHERLY FLOW SETTING UP...EXCEPT CALM WINDS STILL AT
KCMI/KDEC NEAR FRONTAL ZONE. ANY SHOWERS EARLY THIS AFTERNOON WILL
NOW STAY SOUTH OF KCMI/KDEC AND BRIEF MVFR CIGS AT KCMI SHOULD
SHIFT SOUTH SOON. ASIDE FROM SCT MID/HIGH LEVEL CLOUDS MOSTLY
CLEAR SKIES EXPECTED THROUGH TONIGHT ALONG WITH LIGHT WINDS. WINDS
VEER TO THE SOUTHEAST AFTER SUNRISE SUNDAY IN RESPONSE TO A TROF
OF LOW PRESSURE OVER THE PLAINS. THIS WILL SPARK THE NEXT ROUND OF
SHOWERS AND STORMS OVER IA SUNDAY MORNING...WHICH COULD GET INTO
THE CENTRAL IL TERMINALS SUNDAY AFTERNOON.

25
&&

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

Hazardous weather outlook, Jul 20, 3:00 PM CDT, 1 hour 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
300 PM CDT SAT JUL 20 2013

ILZ027>031-036>038-040>053-055-212000-
CASS-CHAMPAIGN-CHRISTIAN-DE WITT-DOUGLAS-FULTON-KNOX-LOGAN-MACON-
MARSHALL-MASON-MCLEAN-MENARD-MORGAN-PEORIA-PIATT-SANGAMON-
SCHUYLER-SCOTT-STARK-TAZEWELL-VERMILION-WOODFORD-
300 PM CDT SAT JUL 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS AND EAST CENTRAL ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORM CHANCES WILL RETURN SUNDAY AND REMAIN A DAILY THREAT
THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

ILZ054-056-057-061>063-066>068-071>073-212000-
CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND-EDGAR-EFFINGHAM-JASPER-
LAWRENCE-MOULTRIE-RICHLAND-SHELBY-
300 PM CDT SAT JUL 20 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A COLD FRONT MOVING THROUGH THE AREA WILL TRIGGER SCATTERED
THUNDERSTORMS THIS AFTERNOON...AND INTO THE EARLY EVENING. SEVERE
WEATHER IS NOT EXPECTED...HOWEVER...STRONG WIND GUSTS AND HEAVY
RAINS ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORM CHANCES WILL RETURN SUNDAY AND REMAIN A DAILY THREAT
THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

In the hours before

Local storm report, Jul 20, 11:15 AM CDT, 5 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LINCOLN IL
1115 AM CDT SAT JUL 20 2013

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

0700 AM     HEAVY RAIN       1 W HOOPESTON           40.47N 87.69W
07/20/2013  M1.35 INCH       VERMILION          IL   COCORAHS

            PCPN BEGAN AT 0610L.

0855 AM     HEAVY RAIN       DANVILLE                40.14N 87.62W
07/20/2013  M1.50 INCH       VERMILION          IL   EMERGENCY MNGR

            PCPN OVER THE PAST HOUR.

0859 AM     FLOOD            DANVILLE                40.14N 87.62W
07/20/2013                   VERMILION          IL   EMERGENCY MNGR

            STREET FLOODING IN DANVILLE.

0955 AM     HEAVY RAIN       DANVILLE                40.14N 87.62W
07/20/2013  M2.28 INCH       VERMILION          IL   EMERGENCY MNGR

&&

OUSLEY

Local storm report, Jul 20, 3:48 PM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
348 PM CDT SAT JUL 20 2013

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

0342 PM     FLASH FLOOD      TRIMBLE                 39.06N 87.68W
07/20/2013                   CRAWFORD           IL   CO-OP OBSERVER

            SEVERAL INCHES OF WATER FLOWING OVER COUNTY ROADS NEAR
            TRIMBLE

&&

25

Local storm report, Jul 20, 4:15 PM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
415 PM CDT SAT JUL 20 2013

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

0413 PM     HEAVY RAIN       1 E TRIMBLE             39.06N 87.67W
07/20/2013  M2.75 INCH       CRAWFORD           IL   CO-OP OBSERVER

            STORM TOTAL RAINFALL SO FAR TODAY...STILL RAINING.

&&

LAUFENBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 8:48 AM CDT	Areal Flood Advisory	ILX	Vermilion	4 hr
Jul 20, 3:04 PM CDT	Flash Flood Warning	ILX	Crawford, Jasper	6 hr
Jul 20, 4:28 PM CDT	Areal Flood Advisory	ILX	Clay, Lawrence, Richland	3 hr

Nearby

Flash Flood Warnings in Illinois, 2013 Every flash flood warning in 2013

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.