Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 203, NWS Lincoln, IL

July 12, 2011Scott County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jul 12, 2011, 4:46 PM CDT for Scott County, Illinois. It was in force for 44 min. 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 12, 2011, 4:46 PM CDT (21:46 UTC)
Expired: Jul 12, 2011, 5:30 PM CDT
In force: 44 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Scott County, IL

The radar

The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 21:46 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 severe thunderstorm 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 12, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 176 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: 1615 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: -14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

295 
WUUS53 KILX 122146
SVRILX
ILC171-122230-
/O.NEW.KILX.SV.W.0203.110712T2146Z-110712T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
446 PM CDT TUE JUL 12 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SCOTT COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 530 PM CDT.

* AT 441 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NAPLES TO 11 MILES NORTHEAST OF BELLEVIEW...AND MOVING EAST AT
  40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

* LOCATIONS IMPACTED INCLUDE...
  WINCHESTER...ALSEY...MANCHESTER...OXVILLE AND GLASGOW.

THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 43 AND 52.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3978 9061 3978 9060 3958 9031 3952 9031
      3951 9053 3952 9058 3954 9058 3962 9062
      3964 9062 3967 9064
TIME...MOT...LOC 2146Z 286DEG 35KT 3978 9059 3946 9060
WIND...HAIL 60MPH 0.75IN

$$

CHURCHILL

2 follow-up statements

298 
WWUS53 KILX 122212
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
512 PM CDT TUE JUL 12 2011

ILC171-122230-
/O.CON.KILX.SV.W.0203.000000T0000Z-110712T2230Z/
SCOTT IL-
512 PM CDT TUE JUL 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN SCOTT
COUNTY UNTIL 530 PM CDT...

AT 510 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ALSEY...OR 6 MILES SOUTH OF
WINCHESTER...MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALSEY AND MANCHESTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3952 9031 3952 9056 3962 9059 3967 9054
      3966 9043 3958 9031
TIME...MOT...LOC 2212Z 299DEG 22KT 3954 9046
WIND...HAIL 60MPH <.75IN

$$

CHURCHILL

902 
WWUS53 KILX 122223
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
523 PM CDT TUE JUL 12 2011

ILC171-122233-
/O.EXP.KILX.SV.W.0203.000000T0000Z-110712T2230Z/
SCOTT IL-
523 PM CDT TUE JUL 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SCOTT COUNTY WILL
EXPIRE AT 530 PM CDT...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT.

LAT...LON 3952 9031 3952 9056 3962 9059 3967 9054
      3966 9043 3958 9031
TIME...MOT...LOC 2223Z 299DEG 22KT 3951 9038

$$

CHURCHILL

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 Jul 12, 2:50 PM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jul 12, 2:50 PM CDT, 1 hour 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
250 PM CDT TUE JUL 12 2011

.DISCUSSION...
ISSUED 250 PM CDT TUE JUL 12 2011

ANOTHER HOT/HUMID DAY UNFOLDING ACROSS CENTRAL AND SOUTHEAST
ILLINOIS TODAY...THOUGH THE PASSAGE OF A WEAK COLD FRONT HAS
USHERED IN LESS OPPRESSIVE CONDITIONS THAN YESTERDAY ACROSS ALL
BUT SOUTHEAST PORTIONS OF THE FORECAST AREA. MAIN FORECAST
CONCERNS TODAY REVOLVE AROUND PRECIPITATION CHANCES UNTIL FRONT
SINKS A LITTLE FARTHER SOUTH...AS WELL AS THE RETURN OF OPPRESSIVE
HEAT FOR THE WEEKEND INTO NEXT WEEK.

AS HAS BEEN THE CASE FOR LATELY...MODELS/ENSEMBLES IN GOOD AGREEMENT
WITH RESPECT TO THE LARGE SCALE PATTERN OVER THE NEXT SEVERAL
DAYS. HOWEVER...AS CAN BE EXPECTED...STRUGGLES PERSIST ON THE
TIMING...COVERAGE...AND PLACEMENT OF THE SMALLER SCALE CONVECTIVE
THREAT. THIS IS A LESSER CONCERN THAN IT HAS BEEN THE PAST FEW
DAYS THOUGH AS OUR CURRENT FORECAST PERIOD SHOULD BE LARGELY DRY.

SHORT TERM...TONIGHT THROUGH FRIDAY...WHILE THE FRONTAL BOUNDARY
HAS SHIFTED SOUTH OF THE FORECAST AREA FOR THE MOST PART...THE
DRIER AND MORE STABLE AIR LAGS BEHIND THE FRONT TO SOME DEGREE.
THIS WILL ALLOW LOW SHOWER/STORM CHANCES TO LINGER ALONG/JUST
NORTH OF THE FRONTAL BOUNDARY INTO WEDNESDAY. HOWEVER...THE
AIRMASS WILL HAVE COOLED/DRIED SUFFICIENTLY BY WEDNESDAY TO LET THE
EXCESSIVE HEAT WARNING IN SOUTHEAST ILLINOIS EXPIRE AS PLANNED AT
7 PM TONIGHT.

MOSTLY QUIET WEATHER IS ANTICIPATED FOR LATER WEDNESDAY INTO
FRIDAY WITH HIGH PRESSURE IN CONTROL AT THE SURFACE AND RIDGING IN
THE VICINITY ALOFT. THAT BEING SAID...THERE ARE A COUPLE FEATURES
TO KEEP AN EYE ON THAT WILL POSE AT LEAST A SLIGHT RISK OF
SHOWER/STORMS TO THE FORECAST AREA. THE FIRST IS A SMALL CUTOFF
LOW...CURRENTLY OVER OKLAHOMA...DRIFTING BENEATH THE MEAN RIDGE
OVER THE CENTRAL UNITED STATES. THE SECOND IS A WAVE/MCS THAT WILL
TOP THE THE MEAN RIDGE THURSDAY INTO FRIDAY. THE FIRST WAVE DOES
NOT HAVE MUCH STEERING FLOW TO DIRECT WHERE IT WILL TRACK...THOUGH
THE MODEL CONSENSUS GENERALLY HAS IT DRIFT EAST BEFORE IT TRACKS
SOUTHEAST ALONG THE MISSISSIPPI RIVER ON THURSDAY. THE SECOND
WAVE/POTENTIAL MCS IS PROGGED BY THE BULK OF THE MODELS TO STAY TO
OUR NORTH WITH THE STRONGER WIND FIELDS AND LOWER CONVECTIVE
INHIBITION. SO...WITH THIS THINKING IN MIND...HAVE GONE WITH NO
MORE THAN SLIGHT CHANCES OF SHOWERS/STORMS ON THE WESTERN/NORTHERN
FRINGES OF THE FORECAST AREA AS THESE FEATURES MOVE BY.

LONG TERM...SATURDAY THROUGH TUESDAY...THE CENTRAL U.S. RIDGE/HEAT
DOME WILL BUILD EAST FOR THE WEEKEND AND INTO NEXT WEEK. THIS IS
LIKELY TO RESULT IN AN EXTENDED PERIOD OF THE HOTTEST TEMPERATURES
OF THE SUMMER. THESE CONDITIONS WILL BE AS HOT/HUMID AS WE WERE
YESTERDAY...IF NOT MORE SO. THE HEAT DOME WILL EFFECTIVELY CAP THE
AIRMASS LOCALLY...WITH LITTLE OR NO CHANCE OF RAINFALL THROUGH THE
PERIOD.

BAK
&&

.AVIATION...
ISSUED 1220 PM CDT TUE JUL 12 2011

PRIMARY FORECAST CONCERN IS FOR CONVECTIVE DEVELOPMENT. AREA OF
SHOWERS/STORMS ACROSS EASTERN IOWA HAS PRODUCED AN OUTFLOW
BOUNDARY...WITH ASSOCIATED DEVELOPMENT INTO NORTHERN MISSOURI. AM
EXPECTING SOME INCREASE IN COVERAGE AS THE STORMS MOVE EAST INTO
ILLINOIS...ALONG A SURFACE BOUNDARY AND IN AN AREA OF GREATER
INSTABILITY. EASTWARD PROGRESSION ACROSS ILLINOIS IS LESS CLEAR
CUT AT THE MOMENT...SO WILL LIMIT VCTS MENTION TO KPIA/KSPI FOR
NOW UNTIL TRENDS BECOME MORE CLEAR. SHOULD SEE A DIMINISHING TREND
DURING THE EVENING...BUT 12Z MODELS INDICATING SOME POTENTIAL FOR
RENEWED CONVECTION EARLY WEDNESDAY MORNING. BULK OF THE RAIN
SHOULD BE FURTHER WEST...WITH HIGH PRESSURE TO OUR NORTH BRINGING
IN DRIER AIR FROM THE NORTHEAST. CANNOT RULE OUT SOME RAIN MAKING
IT AS FAR EAST AS KSPI/KDEC TOMORROW MORNING...BUT CONFIDENCE IS
NOT HIGH ENOUGH TO WARRANT INCLUSION AT THIS TIME.

GEELHART
&&

.ILX WATCHES/WARNINGS/ADVISORIES...
EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THIS EVENING FOR
ILZ066>068-071>073.

&&

Hazardous weather outlook, Jul 12, 3:12 PM CDT, 1 hour 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
312 PM CDT TUE JUL 12 2011

ILZ027>031-037-038-043>046-131100-
CHAMPAIGN-DE WITT-KNOX-MARSHALL-MCLEAN-PEORIA-PIATT-STARK-
TAZEWELL-VERMILION-WOODFORD-
312 PM CDT TUE JUL 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
AND EAST CENTRAL ILLINOIS...MAINLY ALONG AND NORTH OF THE I-74
CORRIDOR.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS WILL BE POSSIBLE ACROSS THE AREA. THERE
IS A SLIGHT RISK OF SEVERE WEATHER...PRIMARILY IN THE FORM OF
DAMAGING WINDS AND POSSIBLY LARGE HAIL. HOWEVER...THE MORE
SIGNIFICANT SEVERE WEATHER THREAT WILL BE SOUTH OF I-74.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

AFTER A TEMPORARY PERIOD OF COOLER WEATHER...THE HEAT AND
HUMIDITY WILL RETURN BY SATURDAY. CURRENT INDICATIONS ARE THAT
THE HEAT WAVE WILL BE SIMILAR TO THE MOST RECENT ONE...WITH HEAT
INDEX VALUES OVER 105 LIKELY SUNDAY AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THROUGH EARLY EVENING.

ILZ036-040-041-047>050-131100-
CASS-FULTON-MASON-MENARD-MORGAN-SCHUYLER-SCOTT-
312 PM CDT TUE JUL 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
ILLINOIS.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA THROUGH
TONIGHT. SEVERE WEATHER IS POSSIBLE THIS EVENING...PRIMARILY IN
THE FORM OF DAMAGING WINDS AND SOME LARGE HAIL. VERY HEAVY RAIN
MAY ALSO RESULT IN LOCALIZED FLOODING...DUE TO THE SLOW MOVEMENT
OF SOME OF THE STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORMS MAY LINGER INTO WEDNESDAY MORNING...BUT NO SEVERE
WEATHER IS EXPECTED.

LINGERING FLOODING ALONG THE ILLINOIS RIVER NEAR BEARDSTOWN WILL
SUBSIDE BY EARLY THURSDAY.

AFTER A TEMPORARY PERIOD OF COOLER WEATHER...THE HEAT AND
HUMIDITY WILL RETURN BY SATURDAY. CURRENT INDICATIONS ARE THAT
THE HEAT WAVE WILL BE SIMILAR TO THE MOST RECENT ONE...WITH HEAT
INDEX VALUES OVER 105 LIKELY SUNDAY AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY THROUGH THIS EVENING.

ILZ042-051>057-061>063-131100-
CHRISTIAN-CLARK-COLES-CUMBERLAND-DOUGLAS-EDGAR-LOGAN-MACON-
MOULTRIE-SANGAMON-SHELBY-
312 PM CDT TUE JUL 12 2011

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

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA THROUGH
TONIGHT. SEVERE WEATHER IS POSSIBLE THIS EVENING...PRIMARILY IN
THE FORM OF DAMAGING WINDS AND SOME LARGE HAIL. VERY HEAVY RAIN
MAY ALSO RESULT IN LOCALIZED FLOODING...DUE TO THE SLOW MOVEMENT
OF SOME OF THE STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORMS MAY LINGER INTO WEDNESDAY MORNING...BUT NO SEVERE
WEATHER IS EXPECTED.

AFTER A TEMPORARY PERIOD OF COOLER WEATHER...THE HEAT AND
HUMIDITY WILL RETURN BY SATURDAY. CURRENT INDICATIONS ARE THAT THE
HEAT WAVE WILL BE SIMILAR TO THE MOST RECENT ONE...WITH HEAT INDEX
VALUES OVER 105 LIKELY SUNDAY AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY THROUGH THIS EVENING.

ILZ066>068-071>073-131100-
CLAY-CRAWFORD-EFFINGHAM-JASPER-LAWRENCE-RICHLAND-
312 PM CDT TUE JUL 12 2011

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ILLINOIS.

.DAY ONE...TONIGHT

THE DAYTIME OPPRESSIVE HEAT INDEX READINGS SHOULD FALL BELOW 100
DEGREES BY SUNSET.

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA THROUGH
TONIGHT. SEVERE WEATHER IS POSSIBLE THIS EVENING...PRIMARILY IN
THE FORM OF DAMAGING WINDS AND SOME LARGE HAIL. VERY HEAVY RAIN
MAY ALSO RESULT IN LOCALIZED FLOODING...DUE TO THE SLOW MOVEMENT
OF SOME OF THE STORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE WILL BE A CHANCE FOR THUNDERSTORMS ON WEDNESDAY...BUT NO
SEVERE WEATHER IS EXPECTED.

AFTER A TEMPORARY BREAK...THE HEAT AND HUMIDITY WILL RETURN THIS
WEEKEND. CURRENT INDICATIONS ARE THAT THE HEAT WAVE WILL BE
SIMILAR TO THE MOST RECENT ONE...WITH HEAT INDEX VALUES OVER 105
LIKELY SUNDAY AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY THROUGH THIS EVENING.

GEELHART

In the hours before

Special weather statement, Jul 12, 3:42 PM CDT, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
342 PM CDT TUE JUL 12 2011

ILZ071-122145-
CLAY-
342 PM CDT TUE JUL 12 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CLAY COUNTY UNTIL
445 PM CDT...

AT 337 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THUNDERSTORMS WERE RAPIDLY DEVELOPING NEAR XENIA...OR 7 MILES
SOUTHWEST OF FLORA...MOVING EAST AT 5 MPH.

SMALL HAIL...AND WINDS AROUND 55 MPH ARE EXPECTED WITH THIS STORM.
IN ADDITION...UNUSUALLY FREQUENT DEADLY LIGHTNING AND TORRENTIAL
RAINFALL WILL BE LIKELY.

PEOPLE IN CLAY COUNTY...INCLUDING THE CITIES OF XENIA AND FLORA...
SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS...AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

LAT...LON 3874 8850 3861 8845 3861 8869 3875 8869
TIME...MOT...LOC 2041Z 274DEG 6KT 3862 8859

CHURCHILL

Local storm report, Jul 12, 3:53 PM CDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
353 PM CDT TUE JUL 12 2011

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

0347 PM     TSTM WND DMG     1 E CHATHAM             39.67N 89.68W
07/12/2011                   SANGAMON           IL   EMERGENCY MNGR

            POWERLINES DOWN.

&&

TROIKE

Special weather statement, Jul 12, 3:56 PM CDT, 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
356 PM CDT TUE JUL 12 2011

ILZ051-052-122200-
CHRISTIAN-SANGAMON-
356 PM CDT TUE JUL 12 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN SANGAMON AND WESTERN
CHRISTIAN COUNTIES UNTIL 500 PM CDT...

AT 351 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM JUST EAST OF CHATHAM...OR 7 MILES SOUTH OF
SPRINGFIELD...MOVING EAST AT 5 MPH. POWER LINES WERE REPORTED DOWN 1
MILE EAST OF CHATHAM AT 347 PM CDT.

SMALL HAIL...AND WINDS AROUND 55 MPH ARE EXPECTED WITH THIS STORM.

PEOPLE IN CHRISTIAN AND SANGAMON COUNTIES...INCLUDING THE CITY OF
CHATHAM...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS...AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

LAT...LON 3976 8943 3960 8944 3961 8973 3972 8973
TIME...MOT...LOC 2056Z 272DEG 10KT 3967 8963

CHURCHILL

Local storm report, Jul 12, 4:36 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
436 PM CDT TUE JUL 12 2011

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

0425 PM     FLASH FLOOD      S XENIA                 38.64N 88.64W
07/12/2011                   CLAY               IL   EMERGENCY MNGR

            SEVERAL INCHES OF FLOWING WATER OVER FAIRFIELD ROAD. 1/4
            MILE SOUTH OF XENIA.

&&

TROIKE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 3:42 PM CDT	Special Weather Statement	ILX	Clay	63 min
Jul 12, 3:56 PM CDT	Special Weather Statement	ILX	Sangamon	64 min
Jul 12, 4:21 PM CDT	Flash Flood Warning	ILX	Clay	6 hr
Jul 12, 5:39 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	51 min
Jul 12, 5:45 PM CDT	Flash Flood Warning	ILX	Lawrence, Richland	5 hr
Jul 12, 6:28 PM CDT	Flash Flood Warning	ILX	Crawford, Jasper	5 hr
Jul 12, 6:37 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	38 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Every severe thunderstorm warning in 2011

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.