Alert archive / Illinois / Flash Flood Warnings in 2013

Flash Flood Warning 10, NWS Lincoln, IL

April 18, 20138 counties in Illinois

NWS Lincoln, IL issued this flash flood warning at Apr 18, 2013, 2:18 PM CDT for 8 counties in Illinois. It was in force for 18 hr. 38 reports 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
Apr 18, 2013, 2:18 PM CDT (19:18 UTC)
Expired
Apr 19, 2013, 8:16 AM CDT
In force
18 hr
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Flood severity
None

Counties Champaign County, IL, Coles County, IL, Cumberland County, IL, Douglas County, IL, Effingham County, IL, Moultrie County, IL, Shelby County, IL, Vermilion County, IL

The radar

The Lincoln radar (KILX), 100 km from the middle of the area, began a volume at 19:21 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

TimeReportWhereRemark
Apr 18, 2:27 PM CDTHEAVY RAIN 1.85Tuscola, ILSINCE 7 AM
Apr 18, 2:30 PM CDTHEAVY RAIN 1.81 Ene Philo, ILPAST 8.5 HOURS
Apr 18, 2:45 PM CDTFLOODCowden, ILUP TO 3 FEET OF WATER COVERING NUMEROUS ROADS AROUND COWDEN
Apr 18, 3:15 PM CDTHEAVY RAIN 1.424 Nw Windsor, ILMANY COUNTRY ROADS ARE FLOODED IN SPOTS
Apr 18, 4:00 PM CDTFLASH FLOODTuscola, ILBETWEEN MURDOCK AND TUSCOLA RURAL ROADS HAD 4 TO 8 INCHES OF RUNNING WATER OVER THEM. ALSO, ROADS PARALLEL TO THE EMBARRAS RIVER WERE IMPASSABLE. SPOTTER NUMBER 1316-04
Apr 18, 5:00 PM CDTFLASH FLOODShumway, ILNUMEROUS ROADS FLOODED AND IMPASSABLE ESPECIALLY NEAR THE LITTLE WABASH RIVER...FIELD WERE ALSO FLOODED.
Apr 18, 5:21 PM CDTFLOOD5 E Urbana, ILROUTE 150 BETWEEN BETWEEN ROUTE 130 AND MAYVIEW IS ALMOST COMPLETELY FLOODED...EASTBOUND IS COMPLETELY FLOODED...WESTBOUND IS PARTIALLY FLOODED.
Apr 18, 5:29 PM CDTFLASH FLOODSidney, ILCOUNTY HIGHWAY 15 IN SIDNEY IS FLOODED AND NOT PASSABLE BY VEHICLES...THE WATER IS STILL RISING. SEVERAL ROADS ARE GETTING BARRICADED. SEVERAL ROADS IN SIDNEY ARE ALSO UNDERWATER.
Apr 19, 6:00 AM CDTHEAVY RAIN 2.63Ogden, IL
Apr 19, 6:00 AM CDTHEAVY RAIN 3.41Windsor, IL
Apr 19, 6:06 AM CDTHEAVY RAIN 2.22Effingham, IL
Apr 19, 6:30 AM CDTHEAVY RAIN 3.57Neoga, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.094 E Lovington, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.49N Savoy, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.533 Sse Champaign, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.631 S Charleston, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.713 Se Urbana, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.72Ne Watson, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.83Ssw Broadlands, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.843 Sw Effingham, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.88Se Effingham, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.934 Nw Neoga, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.981 E Effingham, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 2.992 N Homer, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.05Tuscola, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.06Lovington, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.11N Sidney, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.151 Ene Philo, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.152 Nw Altamont, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.383 S Sullivan, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 3.66Beecher City, IL
Apr 19, 7:00 AM CDTHEAVY RAIN 4.113 Nw Mode, IL
Apr 19, 7:30 AM CDTHEAVY RAIN 2.611 N Savoy, IL
Apr 19, 7:56 AM CDTHEAVY RAIN 2.424 Nw Windsor, IL
Apr 19, 7:58 AM CDTHEAVY RAIN 2.644 Sw Newman, IL
Apr 19, 8:00 AM CDTHEAVY RAIN 2.12Urbana, IL
Apr 19, 8:00 AM CDTHEAVY RAIN 2.96Mattoon, IL
Apr 19, 8:00 AM CDTHEAVY RAIN 3.281 W Arthur, 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 3 storm reports to this flash flood warning; the first came 102 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.3 hours before the alert went out and 69 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, Lincoln, IL at 12:00Z on 2013-04-18Temperature 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, Lincoln, IL at 12:00Z on 2013-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -203 square meters per square second.1939587897Sfc1 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
474 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
-203 m²/s²
0-3 km storm-relative helicity
-478 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

658 
WGUS53 KILX 181918
FFWILX
ILC019-029-035-041-049-139-173-183-190130-
/O.NEW.KILX.FF.W.0010.130418T1918Z-130419T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
218 PM CDT THU APR 18 2013

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COLES COUNTY IN EAST CENTRAL ILLINOIS...
  CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...
  DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS...
  EFFINGHAM COUNTY IN SOUTH CENTRAL ILLINOIS...
  MOULTRIE COUNTY IN CENTRAL ILLINOIS...
  SHELBY COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS...
  SOUTHWESTERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 830 PM CDT

* AT 216 PM CDT...TRAINED WEATHER SPOTTERS REPORTED SLOW MOVING
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
  RADAR ESTIMATES UP TO TWO INCHES OF RAIN HAS FALLEN SINCE EARLIER
  THIS MORNING.


* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CHARLESTON...EFFINGHAM...MATTOON...SHELBYVILLE...SULLIVAN...
  TOLEDO...TUSCOLA...ALLENVILLE...ALLERTON...ALTAMONT...ARCOLA...
  ARTHUR...ASHMORE...BEECHER CITY...BETHANY...BROADLANDS...CAMARGO...
  COOKS MILL...COWDEN...DIETERICH...EDGEWOOD...FAIRMOUNT...FINDLAY...
  FITHIAN...GREENUP...HAZEL DELL...HINDSBORO...HOMER...HUMBOLDT
  AND JANESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3990 8775 3990 8796 3918 8801 3917 8836
      3891 8837 3891 8880 3921 8881 3922 8914
      3935 8914 3935 8903 3943 8902 3966 8881
      3978 8875 3980 8846 4017 8821 4034 8776

$$

BAK
3 follow-up statements
905 
WGUS73 KILX 182159
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
459 PM CDT THU APR 18 2013

ILC019-029-035-041-049-139-173-183-190130-
/O.CON.KILX.FF.W.0010.000000T0000Z-130419T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOULTRIE IL-SHELBY IL-VERMILION IL-CHAMPAIGN IL-COLES IL-
CUMBERLAND IL-DOUGLAS IL-EFFINGHAM IL-
459 PM CDT THU APR 18 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EFFINGHAM...DOUGLAS...
CUMBERLAND...COLES...SOUTHEASTERN CHAMPAIGN...SOUTHWESTERN
VERMILION...SHELBY AND MOULTRIE COUNTIES UNTIL 830 PM CDT...

AT 457 PM CDT...WEATHER SPOTTERS REPORTED THAT FLASH FLOODING WAS 
OCCURRING BETWEEN MURDOCK AND TUSCOLA...WHERE 4 TO 8 INCHES OF WATER 
WAS RUNNING OVER THE CROWN OF RURAL ROADS. SOME ROADS NEAR THE 
EMBARRAS RIVER WERE IMPASSIBLE.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHARLESTON...EFFINGHAM...MATTOON...SHELBYVILLE...SULLIVAN...TOLEDO...
TUSCOLA...ALLENVILLE...ALLERTON...ALTAMONT...ARCOLA...ARTHUR...
ASHMORE...BEECHER CITY...BETHANY...BROADLANDS...CAMARGO...COOKS
MILL...COWDEN...DIETERICH...EDGEWOOD...FAIRMOUNT...FINDLAY...
FITHIAN...GREENUP...HAZEL DELL...HINDSBORO...HOMER...HUMBOLDT AND
JANESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3990 8775 3990 8796 3918 8801 3917 8836
      3891 8837 3891 8880 3921 8881 3922 8914
      3935 8914 3935 8903 3943 8902 3966 8881
      3978 8875 3980 8846 4017 8821 4034 8776

$$

BAK
676 
WGUS53 KILX 190104
FFWILX
ILC019-029-035-041-049-139-173-183-191330-
/O.EXT.KILX.FF.W.0010.000000T0000Z-130419T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
804 PM CDT THU APR 18 2013

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  COLES COUNTY IN EAST CENTRAL ILLINOIS...
  CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...
  DOUGLAS COUNTY IN EAST CENTRAL ILLINOIS...
  EFFINGHAM COUNTY IN SOUTH CENTRAL ILLINOIS...
  MOULTRIE COUNTY IN CENTRAL ILLINOIS...
  SHELBY COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS...
  WESTERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 830 AM CDT FRIDAY

* AT 802 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL ESTIMATES
  RANGE FROM 1 TO 2 INCHES FROM EARLIER THIS AFTERNOON...WITH THE 
  POTENTIAL FOR AN ADDITIONAL 1 TO 1.50 INCHES OF RAIN FOR THIS      
  EVENING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CHARLESTON...EFFINGHAM...MATTOON...SHELBYVILLE...SULLIVAN...
  TOLEDO...TUSCOLA...ALLENVILLE...ALLERTON...ALTAMONT...ARCOLA...
  ARTHUR...ASHMORE...BEECHER CITY...BETHANY...BROADLANDS...CAMARGO...
  COOKS MILL...COWDEN...DIETERICH...EDGEWOOD...FAIRMOUNT...FINDLAY...
  FITHIAN...GREENUP...HAZEL DELL...HINDSBORO...HOMER...HUMBOLDT AND
  JANESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3990 8775 3990 8796 3918 8801 3917 8836
      3891 8837 3891 8880 3921 8881 3922 8914
      3935 8914 3935 8903 3943 8902 3966 8881
      3978 8875 3980 8846 4017 8821 4034 8776

$$

SMITH
154 
WGUS73 KILX 191316
FFSILX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
816 AM CDT FRI APR 19 2013

ILC019-029-035-041-049-139-173-183-191330-
/O.CAN.KILX.FF.W.0010.000000T0000Z-130419T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOULTRIE IL-SHELBY IL-VERMILION IL-CHAMPAIGN IL-COLES IL-
CUMBERLAND IL-DOUGLAS IL-EFFINGHAM IL-
816 AM CDT FRI APR 19 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EFFINGHAM...
DOUGLAS...CUMBERLAND...COLES...SOUTHEASTERN CHAMPAIGN...WESTERN
VERMILION...SHELBY AND MOULTRIE COUNTIES IS CANCELLED...

THE FLASH FLOOD WARNING HAS BEEN REPLACED WITH AN AREAL FLOOD
WARNING DUE TO CONTINUED FLOODING BEYOND THE INITIAL HEAVY RAINFALL.
IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW
ENFORCEMENT AGENCY.

LAT...LON 3990 8775 3990 8796 3918 8801 3917 8836
      3891 8837 3891 8880 3921 8881 3922 8914
      3935 8914 3935 8903 3943 8902 3966 8881
      3978 8875 3980 8846 4017 8821 4034 8776

$$

SHIMON

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 Apr 18, 1:36 PM CDT, 42 minutes earlier.

Area forecast discussion, Apr 18, 1:36 PM CDT, 42 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
136 PM CDT THU APR 18 2013

.DISCUSSION...
ISSUED 1058 AM CDT THU APR 18 2013
SOME MINOR UPDATES TO THE FORECAST...RAIN NOT ENDING JUST YET
THOUGH THE CONVECTIVE ACTIVITY HAS DIMINISHED CONSIDERABLY. FLASH
FLOODING REMAINS THE MAJOR CONCERN FOR THE FORECAST...AND ANY
REDEVELOPMENT FOR THE SE WITH THE THUNDERSTORMS THAT HAVE NOT
DISSIPATED. THE CONVECTION THAT HAS MOVED THROUGH THE REGION HAS
INTERFERED WITH THE TRANSFER OF THE STRONGEST WINDS ALOFT...AND
WITH THE CLOUDS REMAINING IN PLACE AND PLENTY OF COOLER AIR IN THE
LLVLS. HAVE ALSO UPDATED THE HOURLY TEMP GRIDS AS MANY AREAS WEST
OF THE INTERSTATE 55 CORRIDOR HAVE ALREADY SEEN THEIR DAILY MAX.
ZONES ALREADY REISSUED AS WELL AS THE CANCELLATION OF THE WIND
ADVISORY.

&&

.AVIATION...
ISSUED 126 PM CDT THU APR 18 2013
RAIN SLOWLY COMING TO AN END FROM WEST TO EAST ACROSS CENTRAL
IL...WITH BMI CMI AND DEC STILL BACK IN THE HEAVIER RAINFALL.
OTHER THAN A BRIEF BREAK BEHIND THE MAJORITY OF THE RAINFALL...THE
CIG DOWN AND EXPECTED TO STAY DOWN. PIA ALREADY BACK IN THE
STRATUS...AND WEST OF PIA DOWN EVEN FURTHER AND VIS EXPECTED TO
DROP. MORE THAN PLENTY OF MOISTURE IN THE BOUNDARY LAYER WITH NO
EXPECTATIONS OF MISSING. DROPPED VIS...CONCERN THAT IT IS NOT
DROPPED ENOUGH...PARTICULARLY IN PIA TOMORROW MORNING EARLY. ONLY
MITIGATING FACTOR THERE WILL BE THE WINDS STAYING UP AS THE
PRESSURE GRADIENT MOVES IN BEHIND THE SFC FRONT.

HJS
&&

.PREV DISCUSSION...
ISSUED 330 AM CDT THU APR 18 2013

STRONG SPRING STORM SYSTEM TO CONTINUE TO IMPACT CENTRAL AND SE
IL TODAY WITH HEAVY RAINS AND POSSIBLE FLASH FLOODING...STRONG
GRADIENT WINDS ESPECIALLY OVER EASTERN IL AND SLIGHT TO MODERATE
RISK OF SEVERE STORMS EAST OF THE IL RIVER (MODERATE RISK OVER
EASTERN IL). 00Z MODELS HAVE TRENDED QUICKER WITH COLD FRONT
MOVING EASTWARD TOWARD THE WABASH RIVER BY 00Z/7 PM EARLY THIS
EVENING. SO SPC HAS TRENDED EASTWARD WITH THE SLIGHT AND MODERATE
RISK AREAS TODAY. WILL CONTINUE THE FLASH FLOOD WATCH INTO TONIGHT
OVER CENTRAL IL (THOUGH THROUGH THIS EVENING ALONG AND WEST OF I-55).
WILL ISSUE A WIND ADVISORY FROM 10 AM THROUGH THIS AFTERNOON
ACROSS EASTERN IL WITH SUSTAINED SOUTH WINDS 25-35 MPH AND AND
GUSTS UP TO AROUND 45 MPH.

SHORT TERM...TODAY THROUGH SUNDAY

WIDESPREAD SHOWERS AND THUNDERSTORMS WITH HEAVY RAINS CONTINUES TO
AFFECT THE IL RIVER VALLEY WITH AS MUCH AS 3-5 INCHES OF RAIN
REPORTED SINCE WED AFTERNOON. WARM FRONT WAS LIFTING BACK
NORTHWARD TO JUST SE OF THE IL RIVER EARLY THIS MORNING AND CONNECTED
TO DEEPENING 1000 MB LOW IN NE MO AND DEEPENING 999 MB LOW OVER
EASTERN OK. TEMPS CONTRAST FROM 51F AT GALESBURG TO LOWER 70S
SOUTH OF I-72 IN THE WARM SECTOR. VERY MOIST DEWPOINTS IN THE LOW
TO MID 60S IN THE WARM SECTOR AS WELL. SOUTH WINDS HAVE INCREASED
TO AS HIGH AS 15-30 MPH IN THE WARM SECTOR WITH GUSTS OF 25-40
MPH.

STRONG UPPER LEVEL TROF DIGGING OVER THE FRONT RANGE OF THE
ROCKIES INTO THE HIGH PLAINS TO EJECT DEEPENING SURFACE LOW
PRESSURE FROM EASTERN OK NE INTO NW IL BY NOON AND INTO CENTRAL
LAKE MI BY SUNSET AND DEEPEN TO 995 MB. STRONG COLD FRONT OVER
CENTRAL MO AND EASTERN OK TO SWEEP EAST OVER IL THIS AFTERNOON AND
REACH THE WABASH RIVER BY 00Z/7 PM. WIDESPREAD SHOWERS AND
THUNDERSTORMS OVER THE IL RIVER VALLEY TO SHIFT EASTWARD INTO
EASTERN/SE IL THIS AFTERNOON AND EVENING. SPC HAS SLIGHT RISK OF
SEVERE STORMS TODAY EAST OF THE IL RIVER WITH MODERATE RISK EAST
OF A CHAMPAIGN TO SHELBYVILLE LINE WHERE 10% OR GREATER RISK OF
EF2 OR STRONGER TORNADOES AND 45% RISK OF DAMAGING WIND GUSTS IN
EXCESS OF 75 MPH AND 15% RISK OF LARGE HAIL. ANOTHER 1.5 TO 3
INCHES OF RAIN EXPECTED TODAY INTO THIS EVENING WITH HEAVIEST
AMOUNTS FROM I-55 NW. WILL CONTINUE THE FLASH FLOOD WATCH TODAY
AND TONIGHT. ALSO EXPECT SOUTH WINDS TO INCREASE TO 25-35 MPH BY
LATE MORNING AND AFTERNOON OVER EASTERN IL WITH GUSTS UP TO 45 MPH
SO WILL HAVE WIND ADVISORY TOO IN EASTERN IL. HIGHS RANGE FROM THE
UPPER 60S TO NEAR 70F NW OF THE IL RIVER TO THE UPPER 70S TO
AROUND 80F OVER EASTERN IL. TEMPS EXPECTED TO FALL BEHIND COLD
FRONT DURING THIS AFTERNOON.

MODELS SHOW A DRY SLOT WORKING IN BEHIND THE COLD FRONT DURING
TONIGHT FROM WEST TO EAST SO HAVE DIMINISHING POPS DURING THE
NIGHT STARTING IN THE WEST THIS EVENING AND IN THE EAST OVERNIGHT.
STRONG UPPER LEVEL TROF SHIFTS EAST INTO IL FRIDAY AS STRONG
SURFACE LOW MOVES INTO EASTERN LAKE SUPERIOR. HAVE CHANCE OF LIGHT
RAIN SHOWERS OVER CENTRAL IL AND COULD BE A FEW LIGHT SNOW SHOWERS
OVER THE IL RIVER VALLEY FRI MORNING. BUT PRECIP IS VERY LIGHT IF
IT HAPPENS AND COULD BE A TRACE EVENT. STRONG WEST WINDS FRIDAY
AND MUCH COOLER HIGHS IN THE UPPER 40S TO AROUND 50F.

1025 MB HIGH PRESSURE DRIFTS INTO THE MID MS VALLEY FRIDAY NIGHT
DIMINISHING THE CLOUDS AND WINDS TOWARD OVERNIGHT. LOWS IN THE
LOWER 30S CENTRAL IL AND MID 30S SE IL. HIGH PRESSURE DRIFTS EAST
OF IL SAT AFTERNOON AND COOL HIGHS IN THE LOW TO MID 50S DESPITE
MOSTLY SUNNY SKIES. HIGHS SUNDAY IN THE UPPER 50S AND LOWER 60S
WITH SOUTHERLY WINDS STARTING A WARMUP. WEAK SHORT WAVES TO MOVE
INTO IL LATER SUNDAY AND HAVE SLIGHT CHANCE OF SHOWERS NW OF THE
IL RIVER SUNDAY AFTERNOON AND AS FAR EAST AS I-55 SUNDAY NIGHT.

LONG TERM...SUNDAY NIGHT THROUGH WEDNESDAY NIGHT

MORE UNSETTLED WEATHER TO RETURN TO CENTRAL/SE IL MON-WED...
AS ANOTHER STRONG UPPER LEVEL TROUGH DROPS INTO THE NATIONS
HEARTLAND BY TUE. DEEPENING LOW PRESSURE TO EJECT NE FROM THE
SOUTHERN PLAINS TOWARD THE WESTERN GREAT LAKES BY NEXT WED.
THIS TO BRING A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS TUE/WED.
STAYED FAIRLY CLOSE TO ALLBLEND GUIDANCE FOR POPS AND TEMPERATURES.
MILDER HIGHS IN THE MID TO UPPER 60S MONDAY AND COOLER TO LOW TO
MID 50S FOR HIGHS WED. LOWS TO DIP INTO THE MID TO UPPER 30S BY
WED NIGHT.

07

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 1 AM CDT FRIDAY FOR ILZ027>031-036>038-
040>043-047>051.

FLASH FLOOD WATCH THROUGH FRIDAY MORNING FOR ILZ044>046-052>057-
061.

&&
Hazardous weather outlook, Apr 18, 11:48 AM CDT, 2 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
1148 AM CDT THU APR 18 2013

ILZ027>031-036-037-040-041-191100-
FULTON-KNOX-MARSHALL-MASON-PEORIA-SCHUYLER-STARK-TAZEWELL-
WOODFORD-
1148 AM CDT THU APR 18 2013

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

MANY AREAS ARE FLOODED...WITH MANY ROAD CLOSURES...AS A RESULT OF
4 TO 7 INCHES OF RAIN THAT HAVE FALLEN IN THE LAST 24 HOURS.
CONTINUED RISING OF SOME CREEKS AND RIVERS CAN BE EXPECTED THROUGH
THE AFTERNOON. FLASH FLOODING REMAINS THE MAJOR THREAT FOR TODAY.

RAIN WILL CONTINUE THROUGH MIDDAY...AND ALTHOUGH THE CONVECTIVE
ACTIVITY HAS REDUCED SOMEWHAT...THERE IS STILL THE POTENTIAL FOR
SCATTERED THUNDERSTORM ACTIVITY THROUGH THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF A FEW THUNDERSTORMS MONDAY THROUGH TUESDAY.
THE SEVERE WEATHER THREAT APPEARS LOW AT THIS TIME.

WIDESPREAD FLOODING WILL DEVELOP ACROSS THE ILLINOIS...SPOON AND
MACKINAW RIVERS DURING THE NEXT SEVERAL DAYS...WITH MAJOR FLOODING
OF THE SPOON RIVER POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

ALTHOUGH SPOTTER ACTIVATION IS NOT ANTICIPATED FOR HAIL OR WIND
REPORTS AT THIS TIME...ANY FLASH FLOOD REPORTS SHOULD BE RELAYED.

ILZ042-047>051-191100-
CASS-LOGAN-MENARD-MORGAN-SANGAMON-SCOTT-
1148 AM CDT THU APR 18 2013

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

DUE TO EXTREMELY HEAVY RAINFALL...A FLASH FLOOD WATCH REMAINS IN
EFFECT THROUGH THIS EVENING. IN ADDITION TO EXCESSIVE
RAINFALL...LAKE SPRINGFIELD IS ALSO RELEASING WATER AT SPAULDING
DAM. LOW LYING AREAS ALONG SUGAR CREEK DOWNSTREAM OF SPAULDING DAM
SHOULD BE PARTICULARLY AWARE OF RISK.

ALTHOUGH THE CONVECTIVE ACTIVITY HAS REDUCED SOMEWHAT...THERE IS
STILL THE POTENTIAL FOR SCATTERED THUNDERSTORM ACTIVITY THROUGH
THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF A FEW THUNDERSTORMS MONDAY THROUGH TUESDAY.
THE SEVERE WEATHER THREAT APPEARS LOW AT THIS TIME.

FLOODING WILL OCCUR ON THE ILLINOIS RIVER THE NEXT SEVERAL DAYS...
WITH FLOODING DEVELOPING ON PARTS OF THE SANGAMON RIVER AT PETERSBURG
AND OAKFORD AND ON THE SALT CREEK AT GREENVIEW THE NEXT FEW DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

ILZ038-043-191100-
DE WITT-MCLEAN-
1148 AM CDT THU APR 18 2013

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

DUE TO HEAVY RAINFALL...A FLASH FLOOD WATCH REMAINS IN EFFECT
THROUGH TONIGHT.

RAIN WILL CONTINUE THROUGH MIDDAY...AND ALTHOUGH THE CONVECTIVE
ACTIVITY HAS REDUCED SOMEWHAT...THERE IS STILL THE POTENTIAL FOR
SCATTERED THUNDERSTORM ACTIVITY THROUGH THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF A FEW THUNDERSTORMS MONDAY THROUGH TUESDAY.
THE SEVERE WEATHER THREAT APPEARS LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

ILZ044>046-052>057-061-191100-
CHAMPAIGN-CHRISTIAN-COLES-DOUGLAS-EDGAR-MACON-MOULTRIE-PIATT-
SHELBY-VERMILION-
1148 AM CDT THU APR 18 2013

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

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

.DAY ONE...TODAY AND TONIGHT

ALTHOUGH THE CONVECTIVE ACTIVITY IS DIMINISHING SOMEWHAT...THERE
IS A SLIGHT RISK THAT SOME OF THE SCATTERED THUNDERSTORMS WILL BE
ABLE TO PRODUCE MARGINALLY LARGE HAIL.  THE THREAT FOR HEAVY
RAINFALL CONTINUES...WHICH COULD LEAD TO FLASH FLOODING OF
DITCHES...LOW LYING ROADS...UNDERPASSES AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH THROUGH TUESDAY
EVENING. THE SEVERE WEATHER THREAT APPEARS LOW AT THIS TIME.

THE SANGAMON RIVER AT MONTICELLO IS EXPECTED TO BE IN FLOOD THE
NEXT SEVERAL DAYS. FLOODING IS EXPECTED TO DEVELOP ON THE VERMILION
RIVER AT DANVILLE THE NEXT FEW DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON UNTIL SUNSET.

ILZ062-063-066>068-071>073-191100-
CLARK-CLAY-CRAWFORD-CUMBERLAND-EFFINGHAM-JASPER-LAWRENCE-RICHLAND-
1148 AM CDT THU APR 18 2013

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

.DAY ONE...TODAY AND TONIGHT

PERIODS OF THUNDERSTORMS WILL SPREAD INTO SOUTHEAST ILLINOIS BY
THIS AFTERNOON AND CONTINUE INTO MID EVENING. THERE IS A MODERATE
RISK THAT SOME OF THESE STORMS WILL BE SEVERE...WITH LARGE HAIL
AND DAMAGING WINDS OF 75 MPH OR HIGHER AND STRONG TORNADOES
POSSIBLE. THE THREAT FOR HEAVY RAINFALL CONTINUES...WHICH COULD
LEAD TO FLASH FLOODING OF DITCHES...LOW LYING ROADS...UNDERPASSES
AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF A FEW THUNDERSTORMS MONDAY NIGHT THROUGH
TUESDAY EVENING. THE SEVERE WEATHER THREAT APPEARS LOW AT THIS
TIME.

THE LITTLE WABASH RIVER AT CLAY CITY AND THE EMBARRAS RIVER AT
LAWRENCEVILLE AND STE MARIE IS FORECAST TO GO ABOVE FLOOD STAGE
THE NEXT FEW DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EARLY
EVENING.

HJS

In the hours before

Local storm report, Apr 18, 1:15 PM CDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
115 PM CDT THU APR 18 2013

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

1255 PM     HEAVY RAIN       2 SW LATHAM             39.95N 89.19W
04/18/2013  M3.42 INCH       LOGAN              IL   MESONET

0100 PM     HEAVY RAIN       4 N CARLOCK             40.64N 89.13W
04/18/2013  M2.37 INCH       WOODFORD           IL   COCORAHS

&&

DRH
Special weather statement, Apr 18, 1:18 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
118 PM CDT THU APR 18 2013

ILZ062-066-067-071-181900-
CLAY-CUMBERLAND-EFFINGHAM-JASPER-
118 PM CDT THU APR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR CUMBERLAND...EFFINGHAM...NORTHERN
CLAY AND WESTERN JASPER COUNTIES UNTIL 200 PM CDT...

AT 116 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ST. ELMO TO 7 MILES
NORTHWEST OF HELM...MOVING NORTHEAST AT 55 MPH.

WINDS AROUND 50 MPH ARE EXPECTED WITH THESE STORMS.

PEOPLE IN CLAY...CUMBERLAND...EFFINGHAM AND JASPER COUNTIES...
INCLUDING THE CITIES OF ALTAMONT...EDGEWOOD...IOLA...WATSON...
EFFINGHAM...LOUISVILLE...TEUTOPOLIS...BIBLE GROVE...DIETERICH AND
MONTROSE...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS...AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

LAT...LON 3863 8870 3891 8870 3891 8881 3910 8881
      3922 8853 3922 8847 3925 8847 3938 8816
      3937 8813 3891 8809 3885 8822 3885 8826
      3883 8826
TIME...MOT...LOC 1818Z 237DEG 46KT 3909 8881 3859 8880

MILLER
Local storm report, Apr 18, 1:41 PM CDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
141 PM CDT THU APR 18 2013

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

0130 PM     HEAVY RAIN       2 N HOMER               40.06N 87.96W
04/18/2013  M1.31 INCH       CHAMPAIGN          IL   MESONET

            SINCE 7 AM THIS MORNING

&&

JRP
Special weather statement, Apr 18, 1:57 PM CDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
157 PM CDT THU APR 18 2013

ILZ056-057-062-063-067-068-182000-
CLARK-COLES-CRAWFORD-CUMBERLAND-EDGAR-JASPER-
157 PM CDT THU APR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR CLARK...EASTERN CUMBERLAND...
EDGAR...NORTHEASTERN JASPER...NORTHWESTERN CRAWFORD AND SOUTHEASTERN
COLES COUNTIES UNTIL 300 PM CDT...

AT 153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES EAST OF
NEOGA TO HIDALGO TO BOGOTA...MOVING NORTHEAST AT 45 MPH.

WINDS AROUND 50 MPH ARE EXPECTED WITH THESE STORMS.

PEOPLE IN CLARK...COLES...CRAWFORD...CUMBERLAND...EDGAR AND JASPER
COUNTIES...INCLUDING THE CITIES OF HAZEL DELL...CASEY...WESTFIELD...
ASHMORE...KANSAS...MARTINSVILLE...REDMON...CLARKSVILLE...PARIS AND
MARSHALL...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS...AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

LAT...LON 3902 8808 3916 8808 3940 8826 3981 8771
      3973 8754 3935 8754
TIME...MOT...LOC 1857Z 222DEG 39KT 3934 8831 3918 8818
          3897 8828

MILLER
Local storm report, Apr 18, 2:05 PM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
205 PM CDT THU APR 18 2013

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

0159 PM     FLOOD            SULLIVAN                39.60N 88.61W
04/18/2013                   MOULTRIE           IL   TRAINED SPOTTER

            WATER RUNNING OVER IL RTE 32...SEVERAL COUNTY ROADS
            CLOSED AROUND SULLIVAN

&&

JRP
Local storm report, Apr 18, 2:17 PM CDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
217 PM CDT THU APR 18 2013

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

0211 PM     HEAVY RAIN       OGDEN                   40.12N 87.96W
04/18/2013  M1.48 INCH       CHAMPAIGN          IL   MESONET

            SINCE 830 AM

&&

JRP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 7:17 PM CDTFlash Flood WarningILXPeoria, Tazewell, Woodford15 hr
Apr 17, 7:23 PM CDTSevere Thunderstorm WarningILXSchuyler37 min
Apr 17, 7:59 PM CDTTornado WarningILXCass, Fulton, Mason, Schuyler31 min
Apr 17, 8:31 PM CDTFlash Flood WarningILXFulton, Knox, Marshall, Peoria, Schuyler, Stark and 1 more14 hr
Apr 17, 8:41 PM CDTSpecial Weather StatementILXFulton49 min
Apr 17, 9:30 PM CDTRiver Flood WarningILXMcLean, Tazewell, Woodford3 days
Apr 17, 9:47 PM CDTRiver Flood WarningILXCass, Mason11 days
Apr 17, 10:30 PM CDTSpecial Weather StatementILXMarshall, Peoria, Tazewell, Woodford60 min
Apr 18, 3:50 AM CDTWind AdvisoryILXChampaign, Christian, Clark, Clay, Coles, Crawford and 14 more7 hr
Apr 18, 4:57 AM CDTSpecial Weather StatementILXFulton, Mason, Menard, Peoria, Tazewell63 min
Apr 18, 5:45 AM CDTSpecial Weather StatementILXMarshall, Woodford30 min
Apr 18, 8:05 AM CDTSevere Thunderstorm WarningILXChampaign, Vermilion40 min
Apr 18, 8:57 AM CDTSevere Thunderstorm WarningILXEdgar, Vermilion63 min
Apr 18, 9:25 AM CDTRiver Flood WarningILXSangamon6 days
Apr 18, 9:25 AM CDTRiver Flood WarningILXMenard9 days
Apr 18, 9:25 AM CDTRiver Flood WarningILXCass, Mason, Menard9 days
Apr 18, 9:28 AM CDTSpecial Weather StatementILXClark, Crawford, Cumberland, Jasper62 min
Apr 18, 9:42 AM CDTSpecial Weather StatementILXClay63 min
Apr 18, 10:01 AM CDTAreal Flood WarningILXFulton, Knox, Marshall, Peoria, Schuyler, Stark and 2 more36 hr
Apr 18, 10:27 AM CDTSpecial Weather StatementILXClark, Clay, Crawford, Jasper, Lawrence, Richland63 min
Apr 18, 11:23 AM CDTAreal Flood AdvisoryILXChampaign, Coles, Cumberland, Douglas, Effingham, Moultrie and 1 more6 hr
Apr 18, 1:01 PM CDTFlash Flood WarningILXSangamon21 hr
Apr 18, 1:18 PM CDTSpecial Weather StatementILXClay, Cumberland, Effingham, Jasper42 min
Apr 18, 1:29 PM CDTSevere Thunderstorm WarningILXClay, Cumberland, Effingham, Jasper31 min
Apr 18, 1:57 PM CDTSpecial Weather StatementILXClark, Edgar63 min
Apr 18, 3:25 PM CDTSpecial Weather StatementILXKnox, Mason, Peoria, Stark, Tazewell65 min
Apr 18, 4:04 PM CDTSpecial Weather StatementILXChristian, DeWitt, Logan, Macon, Sangamon56 min
Apr 18, 4:05 PM CDTAreal Flood AdvisoryILXVermilion16 hr
Apr 18, 4:33 PM CDTSpecial Weather StatementILXMarshall, Woodford57 min
Apr 18, 4:40 PM CDTAreal Flood AdvisoryILXClark, Clay, Crawford, Edgar, Jasper18 hr
Apr 18, 5:22 PM CDTSpecial Weather StatementILXChampaign, DeWitt, McLean, Vermilion53 min
Apr 18, 5:27 PM CDTSpecial Weather StatementILXClark, Coles, Cumberland, Douglas, Edgar, Moultrie and 2 more63 min
Apr 18, 6:08 PM CDTFlash Flood WarningILXFulton22 hr

Nearby

Flash Flood Warnings in Illinois, 2013Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.