Alert archive / Illinois / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 43, NWS Lincoln, IL

May 15, 2009Champaign County, Vermilion County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 15, 2009, 7:50 PM CDT for Champaign County, Vermilion County, Illinois. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 15, 2009, 7:50 PM CDT (00:50 UTC)
Expired: May 15, 2009, 8:30 PM CDT
In force: 40 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

Counties Champaign County, IL, Vermilion County, IL

The radar

The Lincoln radar (KILX), 130 km from the middle of the area, began a volume at 00:51 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.

What was reported inside it

Time	Report	Where	Remark
May 15, 8:25 PM CDT	HAIL 1	5 W Danville, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 35 minutes after it went out.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 15, 2:39 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 275 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: 37 J/kg
Mixed-layer CIN: -278 J/kg
Mixed-layer LCL: 1349 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 238 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.

000 
WUUS53 KILX 160050
SVRILX
ILC019-183-160130-
/O.NEW.KILX.SV.W.0043.090516T0050Z-090516T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
750 PM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS...
  VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 830 PM CDT.

* AT 750 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE GOLF
  BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES NORTHEAST
  OF GIFFORD TO 3 MILES WEST OF BROADLANDS...OR ALONG A LINE
  EXTENDING FROM 9 MILES SOUTHEAST OF PAXTON TO 15 MILES NORTHEAST OF
  TUSCOLA...AND WAS MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OGDEN...
  HOMER...
  ALLERTON...
  FITHIAN...
  SIDELL...
  POTOMAC...
  FAIRMOUNT...
  OAKWOOD...

OTHER LOCATIONS IN THIS WARNING INCLUDE...CATLIN...DANVILLE...
GEORGETOWN...RIDGE FARM...ROSSVILLE...SIDNEY...ST. JOSEPH...TILTON
AND WESTVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3990 8753 3989 8812 4041 8809 4041 8795
      4046 8794 4045 8753
TIME...MOT...LOC 0050Z 272DEG 25KT 4037 8795 3992 8802

$$

2 follow-up statements

000 
WWUS53 KILX 160107
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
807 PM CDT FRI MAY 15 2009

ILC019-160117-
/O.CAN.KILX.SV.W.0043.000000T0000Z-090516T0130Z/
CHAMPAIGN IL-
807 PM CDT FRI MAY 15 2009

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHAMPAIGN COUNTY IS
CANCELLED...

LAT...LON 3989 8794 4042 8793 4046 8794 4045 8753
      3990 8753
TIME...MOT...LOC 0107Z 272DEG 25KT 4036 8779 3991 8787

$$

ILC183-160130-
/O.CON.KILX.SV.W.0043.000000T0000Z-090516T0130Z/
VERMILION IL-
807 PM CDT FRI MAY 15 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR VERMILION COUNTY...

AT 806 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE GOLF BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF
80 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM POTOMAC
TO SIDELL...MOVING EAST AT 30 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...OAKWOOD...
JAMAICA...ROSSVILLE...KICKAPOO STATE PARK...INDIANOLA...HENNING...
WESTVILLE...TILTON...BISMARCK AND ALVIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3989 8794 4042 8793 4046 8794 4045 8753
      3990 8753
TIME...MOT...LOC 0107Z 272DEG 25KT 4036 8779 3991 8787

$$

BARKER

000 
WWUS53 KILX 160130
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
830 PM CDT FRI MAY 15 2009

ILC183-160141-
/O.EXP.KILX.SV.W.0043.000000T0000Z-090516T0130Z/
VERMILION IL-
830 PM CDT FRI MAY 15 2009

...THE SEVERE THUNDERSTORM WARNING FOR VERMILION COUNTY EXPIRES AT
830 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.

LAT...LON 3989 8794 4042 8793 4046 8794 4045 8753
      3990 8753
TIME...MOT...LOC 0107Z 272DEG 25KT 4036 8779 3991 8787

$$

BARKER

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 15, 6:33 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, May 15, 6:33 PM CDT, 1 hour 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
633 PM CDT FRI MAY 15 2009

.DISCUSSION...
ISSUED 303 PM CDT FRI MAY 15 2009

SHORT TERM...TONIGHT THROUGH MONDAY...
MOST OF THE SHORT TERM FOCUS IS PACKED INTO THE FIRST 12 HOURS.
SURFACE LOW NEAR KANSAS CITY HAS A WARM FRONT EXTENDING EASTWARD
ALONG THE INTERSTATE 72 CORRIDOR THROUGH ILLINOIS. INSTABILITY ON
THE 18Z LINCOLN SOUNDING SUPPORTIVE OF HAIL...AND THE LOW LEVEL WIND
PROFILE THROUGH THE LOWEST 2-3 KM ARE SUPPORTIVE OF SUPERCELLS. THIS
THREAT WILL BE ENHANCED NEAR THE WARM FRONT. IN ADDITION...AIRMASS
IS VERY MOIST AND THUNDERSTORMS SHOULD CONTINUE TO BLOSSOM UNTIL THE
ASSOCIATED UPPER TROUGH MOVES THROUGH AFTER MIDNIGHT. WITH THE
EXCESSIVE RAINFALL THAT HAS ALREADY FALLEN IN THE NORTH...AND THE
EXPECTED HEAVY RAINFALL TONIGHT...WILL CONTINUE THE FLASH FLOOD
WATCH AND EXTEND IT SOUTHWARD TOWARD INTERSTATE 70 IN SOUTHEASTERN
ILLINOIS. EVEN THE AREAS THAT MISSED OUT ON THE RAIN TODAY HAVE
NEARLY SATURATED GROUND FROM THE RECENT HEAVY RAINS. IN ADDITION TO
THE FLASH FLOOD THREAT...MAJOR FLOODING OF SEVERAL OF THE AREA
RIVERS WILL BE LIKELY.

WILL CARRY A CHANCE OF PRECIPITATION IN THE SOUTHEAST SATURDAY
MORNING...AFTERWHICH DRIER HIGH PRESSURE WILL BRING MAINLY
SUNNY/CLEAR SKIES THROUGH THE FIRST PART OF NEXT WEEK. LOWS SATURDAY
NIGHT AND SUNDAY NIGHT WILL BE QUITE COOL...IN THE 40-45 RANGE.

LONG TERM...TUESDAY THROUGH FRIDAY...
FAIRLY QUIET PERIOD EXPECTED NEXT WEEK AT AN UPPER RIDGE MIGRATES
FROM THE ROCKIES EASTWARD INTO THE SOUTHERN STATES BY FRIDAY.
HOWEVER...A COUPLE OF FEATURES WORTHY OF NOTE. THE DETERMINISTIC
MODEL GUIDANCE...ESPECIALLY THE 00Z ECMWF...APPEARS TO BE TOO
AMPLIFIED WITH THE FAST UPPER FLOW ACROSS THE NORTHERN CONUS
TUE-FRI. A LESS AMPLIFIED SOLUTION WOULD FAVOR A COLD FRONT POSSIBLY
FLIRTING WITH NORTHERN IL TUESDAY NIGHT OR WEDNESDAY BEFORE
RETREATING BACK NORTH. THE NEXT BETTER SHOT MAY BE BY NEXT FRIDAY...
BUT WILL KEEP POPS IN THE SLIGHT CHANCE RANGE FOR NOW.

&&

.AVIATION...
ISSUED 622 PM CDT FRI MAY 15 2009

LARGE THUNDERSTORM COMPLEX CONTINUES TO PUSH EAST SOUTHEAST ACRS
CNTRL IL EARLY THIS EVENING. FRONTAL BOUNDARY LYING FROM JUST
NORTH OF CHAMPAIGN WEST TO SOUTH OF SPI IS THE FOCUS FOR HP
SUPERCELL DEVELOPMENT WITH INTENSE RAINFALL...WHILE FURTHER TO
THE NORTHWEST...STEADY MODERATE TO LOCALLY HEAVY RAIN. VFR
CIGS TO THE SOUTH OF THE BOUNDARY WL TREND INTO MORE MVFR TO
LOCAL IFR CIGS AS THE COMPLEX SHIFTS SOUTHEAST THIS EVENING.
COLD FRONT STILL WEST OF THE MISSISSIPPI RIVER IS EXPECTED TO
TRACK EWD LATER TNT AND PUSH EAST OF OUR TAF SITES BY 10Z SAT.
FAIRLY STRONG SUBSIDENCE BEHIND THIS SYSTEM WILL TRANSLATE TO
CLEARING SKIES FROM NW TO SE SATURDAY MRNG. FORECASTING THE
WINDS AHEAD OF AND JUST BEHIND THIS CONVECTIVE COMPLEX IS DIFFICULT
AT BEST AND UNTIL THE ACTUAL SYNOPTIC SCALE COLD FRONT SLIPS OFF
TO OUR EAST LATE TNT...WINDS WILL BE AFFECTED SIGNIFICANTLY BY
THE CONVECTION. WE SHOULD SEE WINDS SHIFT MORE INTO A WESTERLY
DIRECTION LATE TNT AS THE FRONT APPROACHES...AND THEN INTO THE
NORTHWEST SATURDAY MORNING AS THE FRONT SHIFTS OFF TO OUR EAST.

SMITH
&&

.ILX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH SATURDAY MORNING FOR ILZ027>031-
036>038-040>057-061.

&&

Hazardous weather outlook, May 15, 2:30 PM CDT, 5 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
230 PM CDT FRI MAY 15 2009

ILZ027>031-036>038-161200-
FULTON-KNOX-MARSHALL-MCLEAN-PEORIA-STARK-TAZEWELL-WOODFORD-
230 PM CDT FRI MAY 15 2009

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

PERIODS OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING.
SOME OF THE STORMS MAY REACH SEVERE LEVELS INTO THIS EVENING...
WITH DAMAGING WINDS AND LARGE HAIL. AN ISOLATED TORNADO WILL BE
POSSIBLE FROM PEORIA SOUTH.

VERY HEAVY RAINFALL IS ALSO EXPECTED THROUGH THIS EVENING AND RAINFALL
AMOUNTS MAY REACH BETWEEN 1.5 TO 3 INCHES...WITH LOCAL 3 TO 5 INCH
AMOUNTS POSSIBLE. THIS RAIN FALLING ON ALREADY SATURATED
SOILS...WILL AGGRAVATE ONGOING FLOODING PROBLEMS ACROSS THE AREA.

SHOWERS AND THUNDERSTORMS WILL SHIFT SOUTHEAST OF THE AREA AFTER
3 AM TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

MANY AREA RIVERS WILL REMAIN AT OR ABOVE FLOOD STAGE FOR THE
NEXT SEVERAL DAYS. IN PARTICULAR...THE ILLINOIS...MACKINAW...AND
SPOON RIVERS WILL EXPERIENCE FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 3 AND 10 PM.

ILZ040>057-061>063-066>068-071>073-161200-
CASS-CHAMPAIGN-CHRISTIAN-CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND-
DE WITT-DOUGLAS-EDGAR-EFFINGHAM-JASPER-LAWRENCE-LOGAN-MACON-MASON-
MENARD-MORGAN-MOULTRIE-PIATT-RICHLAND-SANGAMON-SCHUYLER-SCOTT-
SHELBY-VERMILION-
230 PM CDT FRI MAY 15 2009

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS LATE
THIS AFTERNOON AND EVENING NORTH OF I-70 AND SOUTH OF I-70
TONIGHT...AS A COLD FRONT PUSHES EAST ACROSS THE AREA. SOME OF THE
STORMS MAY REACH SEVERE LEVELS...WITH DAMAGING WINDS AND LARGE
HAIL. AN ISOLATED TORNADO WILL ALSO BE POSSIBLE NORTH OF I-70.
LOCALLY HEAVY RAINFALL MAY DEVELOP...AND FALL ON ALREADY SATURATED
SOILS. ANY ONGOING FLOODING PROBLEMS ACROSS THE AREA WILL LIKELY
BE AGGRAVATED.

SHOWERS AND THUNDERSTORMS WILL SHIFT SOUTHEAST OF THE AREA EARLY
SATURDAY MORNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

MANY AREA RIVERS WILL REMAIN AT OR ABOVE FLOOD STAGE FOR THE
NEXT SEVERAL DAYS. IN PARTICULAR...THE ILLINOIS...SANGAMON...
LITTLE WABASH...AND EMBARRAS RIVERS WILL EXPERIENCE FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 5 PM AND 1 AM.

HUETTL

In the hours before

Local storm report, May 15, 7:07 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
707 PM CDT FRI MAY 15 2009

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

0705 PM     FLASH FLOOD      ELKHART                 40.02N 89.48W
05/15/2009                   LOGAN              IL   EMERGENCY MNGR

            CAR IN NEED OF RESCUE WITH WATER UP TO DOOR HANDLES AT
            ELKHART EXIT ON INTERSTATE 55.

&&

MLK/BRO

Local storm report, May 15, 7:16 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
716 PM CDT FRI MAY 15 2009

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

0645 PM     HAIL             SPRINGFIELD             39.78N 89.64W
05/15/2009  M0.75 INCH       SANGAMON           IL   TRAINED SPOTTER

            REPORTED SOUTH SIDE OF SPRINGFIELD AT CORNER OF WABASH
            AND MAC ARTHER.

0700 PM     HEAVY RAIN       GALESBURG               40.95N 90.38W
05/15/2009  M3.65 INCH       KNOX               IL   CO-OP OBSERVER

            24 HOUR REPORT.

&&

MLK/BRO

Local storm report, May 15, 7:21 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
721 PM CDT FRI MAY 15 2009

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

0705 PM     HEAVY RAIN       1 E HEYWORTH            40.31N 88.96W
05/15/2009  M2.93 INCH       MCLEAN             IL   MESONET

            2.93 INCHES OF RAIN MEASURED TODAY WITH 2.63 INCHES SINCE
            5 PM. COCORAHS REPORT.

0718 PM     HAIL             1 W CHAMPAIGN           40.11N 88.28W
05/15/2009  M0.75 INCH       CHAMPAIGN          IL   EMERGENCY MNGR

&&

MLK/BRO

Local storm report, May 15, 7:37 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
737 PM CDT FRI MAY 15 2009

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

0700 PM     HAIL             MONTICELLO              40.03N 88.57W
05/15/2009  M1.75 INCH       PIATT              IL   BROADCAST MEDIA

            NUMEROUS BROKEN CAR WINDSHIELDS AS REPORTED BY WCIA TV.

0715 PM     HAIL             MOUNT AUBURN            39.77N 89.26W
05/15/2009  M0.88 INCH       CHRISTIAN          IL   LAW ENFORCEMENT

&&

MLK/BRO

Local storm report, May 15, 7:48 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
748 PM CDT FRI MAY 15 2009

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

0739 PM     FLASH FLOOD      CHAMPAIGN               40.11N 88.26W
05/15/2009                   CHAMPAIGN          IL   MESONET

            MANY STREETS IMPASSABLE DUE TO WATER...MANY VIADUCTS
            UNDER WATER...PARTS OF UNIVERSITY AVE UNDER WATER. SWOP
            REPORT

&&

DPK

Local storm report, May 15, 7:50 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
750 PM CDT FRI MAY 15 2009

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

0746 PM     HEAVY RAIN       MOUNT PULASKI           40.01N 89.28W
05/15/2009  M2.72 INCH       LOGAN              IL   CO-OP OBSERVER

            SINCE 6AM...WATER ON MANY FIELDS FROM ILLIOPOLIS TO MT
            PULASKI

&&

DPK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 7:04 PM CDT	Flash Flood Warning	ILX	Champaign, Piatt, Vermilion	6 hr
May 15, 7:04 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Shelby	41 min
May 15, 7:19 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	41 min
May 15, 7:35 PM CDT	Flash Flood Warning	ILX	Fulton, Knox, Marshall, Peoria, Schuyler, Stark and 2 more	4 hr
May 15, 7:57 PM CDT	Flash Flood Warning	ILX	Christian, Moultrie, Shelby	6 hr
May 15, 8:18 PM CDT	Flash Flood Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	6 hr
May 15, 8:48 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Moultrie, Shelby	42 min
May 15, 8:55 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	20 min
May 15, 9:21 PM CDT	Areal Flood Advisory	ILX	Effingham	3 hr
May 15, 9:39 PM CDT	Areal Flood Advisory	ILX	Clay, Jasper, Richland	3 hr
May 15, 9:50 PM CDT	Special Weather Statement	ILX	Clark	40 min
May 15, 10:22 PM CDT	Areal Flood Advisory	ILX	Crawford, Lawrence	5 hr
May 15, 10:44 PM CDT	Areal Flood Warning	ILX	Fulton, Knox, McLean, Marshall, Mason, Peoria and 3 more	6 days
May 15, 11:31 PM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Douglas, Logan, Macon, Mason and 6 more	35 days
May 16, 12:45 AM CDT	Areal Flood Warning	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	146 days
May 16, 12:59 AM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	172 days
May 16, 1:56 AM CDT	Areal Flood Warning	ILX	Christian, Clark, Coles, Cumberland, Douglas, Edgar and 2 more	186 days
May 16, 2:17 AM CDT	River Flood Warning	ILX	Vermilion	50 hr
May 16, 6:58 AM CDT	River Flood Warning	ILX	Crawford, Jasper	38 hr
May 16, 10:23 AM CDT	River Flood Warning	ILX	Cass, Mason, Menard	6 days
May 16, 11:50 AM CDT	Areal Flood Warning	ILX	Cass, DeWitt, Logan, McLean, Macon, Mason and 6 more	189 days
May 16, 1:03 PM CDT	Areal Flood Warning	ILX	Champaign, Logan, Vermilion	224 days
May 16, 6:16 PM CDT	Areal Flood Warning	ILX	Logan, Mason	225 days

Nearby

Severe Thunderstorm Warnings in Illinois, 2009 Every severe thunderstorm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.