May 25th Tornado event - Tornado listing and Severe Weather Reports

 


The following is the listing of  
Tornadoes that hit central and
eastern Illinois on May 25th, 2011.
  


_________________________________________________________


...EIGHT TORNADOES AND NUMEROUS REPORTS OF WIND DAMAGE IN CENTRAL
AND SOUTHEAST ILLINOIS MAY 25TH...

AN INTENSE STORM SYSTEM IN THE MIDWEST RESULTED IN TWO ROUNDS OF
SEVERE WEATHER ACROSS CENTRAL AND SOUTHEAST ILLINOIS ON WEDNESDAY
MAY 25TH. SEVERE STORMS PRODUCED WIDESPREAD WIND DAMAGE AND A
COUPLE OF TORNADOES BETWEEN 500 AM AND 900 AM.

A SECOND ROUND OF SEVERE STORMS RESULTED IN SIX TORNADOES AND
SIGNIFICANT WIND DAMAGE...MAINLY BETWEEN 400 PM AND 900 PM. WIND
DAMAGE RANGING FROM DOWNED TREES AND TREES LIMBS...TO DESTROYED
OUTBUILDINGS...TO ROOFS LIFTED OFF OF HOUSES...WAS REPORTED IN
NEARLY EVERY COUNTY ACROSS CENTRAL AND SOUTHEAST ILLINOIS.
DOWNBURST WIND SPEEDS RANGING FROM 60 MPH TO 100 MPH CAUSED MUCH
OF THE DAMAGE. HUNDREDS OF POWER POLES WERE ALSO SNAPPED AND TENS
OF THOUSANDS OF CUSTOMERS LOST POWER.

THE FOLLOWING IS A PRELIMINARY SUMMARY OF THE EIGHT TORNADOES
REPORTED FROM THE MAY 25TH STORMS BASED ON STORM SURVEYS AND
REPORTS FROM EMERGENCY MANAGERS:


...MACON COUNTY...

AT 735 AM CDT...A TORNADO DEVELOPED 6 MILES EAST-NORTHEAST OF
DECATUR. THE TORNADO DAMAGED ONE OUTBUILDING AND A GRAIN BIN...AND
DESTROYED ANOTHER OUTBUILDING AND ANOTHER GRAIN BIN. THE TORNADO
DISSIPATED AFTER ONE MILE...ABOUT 6.8 MILES EAST-NORTHEAST OF
DECATUR AT 737 AM. THE TORNADO WAS RATED AN EF1...WITH ESTIMATED
WIND SPEEDS OF 90 TO 100 MPH.

AT 739 AM CDT...A SECOND TORNADO DEVELOPED 1.7 MILES EAST OF
OAKLEY. THIS TORNADO TRACKED TO THE NORTHEAST DESTROYING AN
OUTBUILDING. THE TORNADO DISSIPATED AROUND 742 AM...ABOUT 2.9 MILES
NORTHEAST OF OAKLEY. THE TORNADO WAS RATED AN EF1...WITH ESTIMATED
WIND SPEEDS OF 90 TO 100 MPH.


...MCLEAN COUNTY...

AT 606 PM CDT...A TORNADO FORMED ABOUT 4 MILES EAST OF HEYWORTH.
THIS TORNADO DAMAGED A GRAIN BIN AND A POWER POLES. IT THEN TRACKED

INTO AN OPEN FIELD BEFORE DISSIPATING ABOUT A MINUTE LATER. THE TORNADO

WAS RATED AN EF0...WITH ESTIMATED WIND SPEEDS OF 70 TO 80 MPH.

AT 609 PM CDT...A SECOND TORNADO FORMED ABOUT 3 MILES WEST OF
LE ROY. THE TORNADO CROSSED I-74 OVERTURNING A SEMI-TRUCK. THE
TORNADO CONTINUED TRACKING TO THE NORTH THROUGH OPEN FIELDS...

DAMAGING TREES. THE TORNADO DISSIPATED ABOUT 1 MILE SOUTHEAST OF

MERNA...OR 5.3 MILES SOUTHWEST OF COOKSVILLE...AROUND 620 PM. THE

TORNADO WAS RATED AN EF1 WITH WIND SPEEDS AROUND 90 MPH.


...CHAMPAIGN COUNTY...

AT 658 PM CDT...A TORNADO DEVELOPED 4.2 MILES SOUTHEAST OF
MAHOMET. IT DID MINOR DAMAGE TO TREES BEFORE DISSIPATING LESS THAN
A MINUTE LATER. THE TORNADO WAS RATED AN EF0 WITH WIND SPEEDS OF
70 TO 80 MPH.

...CLAY COUNTY...

 

AT 718 PM CDT...A TORNADO DEVELOPED 1.2 MILES SOUTHWEST OF CLAY 
CITY. IT DAMAGED A BARN AND CROSSED U.S. HIGHWAY 50 INTO THE
SOUTHWEST SIDE OF CLAY CITY. THE TORNADO THEN DESTROYED A FENCE
AND DID MINOR TO MODERATE ROOF DAMAGE TO AT LEAST 15 HOUSES. IN 
ADDITION...A CONCRETE BLOCK STORAGE BUILDING HAD THREE WALLS
KNOCKED DOWN...A GARAGE COLLAPSED AND SEVERAL OTHER GARAGES WERE
DAMAGED. NUMEROUS TREES IN THE CITY WERE ALSO DAMAGED. THE
TORNADO DISSIPATED ABOUT 0.4 MILES SOUTH-SOUTHEAST OF THE CENTER
OF CLAY CITY...NEAR THE HIGH SCHOOL AROUND 719 PM CDT. THE
TORNADO WAS RATED AS AN EF-1 WITH WIND SPEEDS AROUND 90 MPH.


...RICHLAND COUNTY...

AT 735 PM CDT...A TORNADO BRIEFLY TOUCHED DOWN 2.7 MILES NORTHWEST
OF OLNEY. THE TORNADO DID NO DAMAGE AND DISSIPATED IN LESS THAN A
MINUTE. THE TORNADO WAS RATED AN EF0 WITH WIND SPEEDS AROUND 70 MPH.


...CRAWFORD COUNTY...

A TORNADO DEVELOPED AT 757 PM CDT...ABOUT 3 MILES SOUTH OF ROBINSON.

THE TORNADO DAMAGED 14 HOUSES...THREE OF WHICH ARE UNINHABITABLE.

FOUR HOUSES HAD MOST OR ALL OF THE ROOF TORN OFF. ONE HOUSE WAS PUSHED

THREE FEET OFF OF THE FOUNDATION. SEVERAL GARAGES AND OUTBUILDINGS WERE

DESTROYED...DOZENS OF POWER POLES WERE BLOWN DOWN...NUMEROUS TREES WERE
DAMAGED AND A LARGE CAMPER WAS ROLLED OVER. THE TORNADO TRACKED TO
THE NORTHEAST FOR 5.5 MILES...DISSIPATING ABOUT 4.5 MILES EAST OF ROBINSON
AROUND 803 PM CDT. THE TORNADO WAS RATED AN EF2 WITH WIND SPEEDS
OF 120 TO 130 MPH.


_________________________________________________________

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LINCOLN IL

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

0500 AM     TSTM WND DMG     1 E NORTONVILLE         39.57N 90.13W
05/25/2011                   MORGAN             IL   PUBLIC

            LARGE TREE LIMBS BLOWN DOWN CAUSING ROOF DAMAGE TO A
            BARN. TV ANTENNA TOPPLED.

0500 AM     TSTM WND DMG     JACKSONVILLE            39.73N 90.23W
05/25/2011                   MORGAN             IL   MESONET

            LARGE TREE LIMBS DOWN IN TOWN. TIME ESTIMATED.

0515 AM     TSTM WND DMG     1 W JACKSONVILLE        39.73N 90.25W
05/25/2011                   MORGAN             IL   EMERGENCY MNGR

            THE TOPS OF SEVERAL 8 TO 10-INCH DIAMETER TREES WERE
            SNAPPED OFF NEAR 67 AND OLD 36 JUST WEST OF JACKSONVILLE.

0530 AM     TSTM WND DMG     VIRGINIA                39.95N 90.21W
05/25/2011                   CASS               IL   CO-OP OBSERVER

            LARGE TREE LIMBS AND HAM RADIO ANTENNA BLOWN DOWN

0530 AM     TSTM WND DMG     1 E VIRGINIA            39.95N 90.19W
05/25/2011                   CASS               IL   LAW ENFORCEMENT

            SHED BLOWN DOWN AND BLOCKING ROAD

0530 AM     TSTM WND DMG     KILBOURNE               40.15N 90.01W
05/25/2011                   MASON              IL   EMERGENCY MNGR

            POWER LINES DOWN AND SEVERAL UPROOTED TREES

0541 AM     TSTM WND DMG     AUBURN                  39.58N 89.75W
05/25/2011                   SANGAMON           IL   EMERGENCY MNGR

            ABOUT 1 MILE STRETCH OF POWER POLES DOWN ON RT 104
            BETWEEN AUBURN AND I55

0603 AM     TSTM WND DMG     2 SW SPRINGFIELD        39.76N 89.67W
05/25/2011                   SANGAMON           IL   EMERGENCY MNGR

            LARGE TREE LIMBS DOWN

0610 AM     HAIL             1 N BARTONVILLE         40.65N 89.66W
05/25/2011  M0.75 INCH       PEORIA             IL   EMERGENCY MNGR

0615 AM     TSTM WND DMG     DELAVAN                 40.37N 89.54W
05/25/2011                   TAZEWELL           IL   MESONET

            PART OF THE ROOF BLOWN OFF HIGH SCHOOL. POWER OUT FOR
            MUCH OF SOUTH SIDE OF DELAVAN.

0615 AM     TSTM WND DMG     1 E DELAVAN             40.37N 89.53W
05/25/2011                   TAZEWELL           IL   EMERGENCY MNGR

            WINDOWS BLOWN OUT OF A HOUSE...AND A METAL SHED BLOWN
            ONTO ROAD.

0735 AM     TORNADO          6 ENE DECATUR           39.89N 88.83W
05/25/2011                   MACON              IL   EMERGENCY MNGR

            2 FARM OUTBUILDINGS AND 2 GRAIN BINS DESTROYED. FROM
            COUNTY EMERGENCY MANAGEMENT STORM SUMMARY FOLLOWUP.

0739 AM     TORNADO          2 E OAKLEY              39.87N 88.76W
05/25/2011                   MACON              IL   EMERGENCY MNGR

            1 OUTBUILDING DESTROYED. FROM COUNTY EMERGENCY MANAGEMENT
            STORM SUMMARY FOLLOWUP.

0740 AM     TSTM WND DMG     3 E CISCO               40.01N 88.67W
05/25/2011                   PIATT              IL   CO-OP OBSERVER

            SEVERAL FARM OUTBUILDINGS DESTROYED. TIME ESTIMATED.

0740 AM     HAIL             MOUNT ZION              39.78N 88.88W
05/25/2011  M0.50 INCH       MACON              IL   MESONET

0800 AM     TSTM WND DMG     1 S TUSCOLA             39.78N 88.28W
05/25/2011                   DOUGLAS            IL   EMERGENCY MNGR

            TREE DOWN ON RAILROAD TRACKS

0808 AM     TSTM WND DMG     SADORUS                 39.97N 88.35W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            TREES DOWN FROM COUNTY EM

0810 AM     TSTM WND DMG     PESOTUM                 39.91N 88.27W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            SEMI BLOWN OVER ON I-57 AT MM 220

0810 AM     TSTM WND DMG     PESOTUM                 39.91N 88.27W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            OLD FLAT ROOF BARN BLOWN OFF.

0810 AM     TSTM WND DMG     1 S PESOTUM             39.90N 88.27W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            SEMI BLOWN OVER ON I-57. ONE INJURY.

0811 AM     TSTM WND GST     MAHOMET                 40.19N 88.40W
05/25/2011  M54.00 MPH       CHAMPAIGN          IL   MESONET

0815 AM     TSTM WND DMG     URBANA                  40.11N 88.21W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            POWERLINES AND POWER POLES DOWN

0817 AM     TSTM WND DMG     4 SE URBANA             40.07N 88.15W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            POWERLINES DOWN

0820 AM     TSTM WND DMG     4 N NEWMAN              39.86N 87.99W
05/25/2011                   DOUGLAS            IL   EMERGENCY MNGR

            7 POWER POLES DOWN

0829 AM     TSTM WND DMG     1 W OGDEN               40.12N 87.97W
05/25/2011                   CHAMPAIGN          IL   AMATEUR RADIO

            2 SEMIS BLOWN OVER ON I-74 BETWEEN MM 194 AND 195.

0836 AM     TSTM WND DMG     RANKIN                  40.46N 87.90W
05/25/2011                   VERMILION          IL   EMERGENCY MNGR

            NUMEROUS TREES AND POWERLINES DOWN

0840 AM     TSTM WND DMG     1 W FITHIAN             40.11N 87.89W
05/25/2011                   VERMILION          IL   TRAINED SPOTTER

            TREES DOWN AND SIDING OFF A HOUSE

0855 AM     TSTM WND GST     HOOPESTON               40.47N 87.67W
05/25/2011  M62.00 MPH       VERMILION          IL   TRAINED SPOTTER

0855 AM     TSTM WND GST     DANVILLE                40.14N 87.62W
05/25/2011  M56.00 MPH       VERMILION          IL   AWOS

0857 AM     TSTM WND DMG     1 SE DANVILLE           40.13N 87.61W
05/25/2011                   VERMILION          IL   EMERGENCY MNGR

            TREES AND POWERLINES DOWN

0858 AM     TSTM WND DMG     1 E DANVILLE            40.14N 87.60W
05/25/2011                   VERMILION          IL   EMERGENCY MNGR

            POWER LINES DOWN ON THE EAST SIDE OF DANVILLE.

1105 AM     LIGHTNING        ALLENVILLE              39.56N 88.54W
05/25/2011                   MOULTRIE           IL   TRAINED SPOTTER

            LIGHTNING STRUCK A TRAILER AND CAUGHT IT ON FIRE

1222 PM     HAIL             SIDELL                  39.91N 87.82W
05/25/2011  M0.88 INCH       VERMILION          IL   EMERGENCY MNGR

            FROM COUNTY EMERGENCY MANAGEMENT.

0116 PM     HAIL             COWDEN                  39.25N 88.86W
05/25/2011  M0.75 INCH       SHELBY             IL   EMERGENCY MNGR

0145 PM     HAIL             WINDSOR                 39.44N 88.60W
05/25/2011  M0.88 INCH       SHELBY             IL   FIRE DEPT/RESCUE

0146 PM     HAIL             4 NW WINDSOR            39.48N 88.65W
05/25/2011  M1.00 INCH       SHELBY             IL   MESONET

0147 PM     HAIL             1 N STEWARDSON          39.28N 88.63W
05/25/2011  M1.00 INCH       SHELBY             IL   EMERGENCY MNGR

0220 PM     HAIL             3 E FAIRGRANGE          39.58N 88.12W
05/25/2011  M0.50 INCH       COLES              IL   EMERGENCY MNGR

0240 PM     HAIL             CHRISMAN                39.80N 87.67W
05/25/2011  M0.50 INCH       EDGAR              IL   TRAINED SPOTTER

0315 PM     HAIL             MARTINSVILLE            39.34N 87.88W
05/25/2011  M0.88 INCH       CLARK              IL   MESONET

            DELAYED REPORT

0410 PM     HAIL             1 W WINCHESTER          39.63N 90.48W
05/25/2011  M1.00 INCH       SCOTT              IL   LAW ENFORCEMENT

0410 PM     TSTM WND DMG     WINCHESTER              39.63N 90.46W
05/25/2011                   SCOTT              IL   LAW ENFORCEMENT

            TREE LIMBS...TREES...POWER POLES AND POWER LINES BLOWN
            DOWN.

0415 PM     HAIL             WINCHESTER              39.63N 90.46W
05/25/2011  M0.50 INCH       SCOTT              IL   CO-OP OBSERVER

            SMALL TREE BRANCHES DOWN AS WELL

0418 PM     TSTM WND DMG     OXVILLE                 39.70N 90.57W
05/25/2011                   SCOTT              IL   LAW ENFORCEMENT

            STORAGE SHED DESTROYED.

0418 PM     HAIL             TOWER HILL              39.39N 88.96W
05/25/2011  M0.50 INCH       SHELBY             IL   LAW ENFORCEMENT

0435 PM     TSTM WND DMG     BEARDSTOWN              40.01N 90.43W
05/25/2011                   CASS               IL   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN REPORTED BY CASS COUNTY
            SHERIFF OFFICE

0445 PM     TSTM WND DMG     BROWNING                40.13N 90.37W
05/25/2011                   SCHUYLER           IL   EMERGENCY MNGR

            TREES AND POWERLINES BLOWN DOWN

0445 PM     FLASH FLOOD      BROWNING                40.13N 90.37W
05/25/2011                   SCHUYLER           IL   EMERGENCY MNGR

            FLASH FLOODING OVER ROUTES 100 AND 103

0445 PM     TSTM WND DMG     DIVERNON                39.57N 89.65W
05/25/2011                   SANGAMON           IL   EMERGENCY MNGR

            TREE FELL ON HOUSE ON KENNY STREET IN TOWN.

0450 PM     HAIL             PAWNEE                  39.59N 89.58W
05/25/2011  M0.50 INCH       SANGAMON           IL   EMERGENCY MNGR

0507 PM     HAIL             MECHANICSBURG           39.81N 89.40W
05/25/2011  M1.25 INCH       SANGAMON           IL   EMERGENCY MNGR

0519 PM     HAIL             PARIS                   39.62N 87.69W
05/25/2011  M1.75 INCH       EDGAR              IL   TRAINED SPOTTER

0520 PM     TSTM WND DMG     DIVERNON                39.57N 89.65W
05/25/2011                   SANGAMON           IL   EMERGENCY MNGR

            TREE FELL ON A HOUSE.

0524 PM     HAIL             MOUNT PULASKI           40.01N 89.28W
05/25/2011  M0.50 INCH       LOGAN              IL   CO-OP OBSERVER

0525 PM     TSTM WND DMG     LINCOLN                 40.15N 89.37W
05/25/2011                   LOGAN              IL   NWS EMPLOYEE

            LARGE TREE LIMB BROKEN OFF...ONE FOOT IN DIAMETER...IN
            LINCOLN ON 5TH STREET. FROM TWO NWS EMPLOYEES.

0525 PM     TSTM WND DMG     FOREST CITY             40.37N 89.83W
05/25/2011                   MASON              IL   FIRE DEPT/RESCUE

            TREES DOWN IN TOWN

0525 PM     TSTM WND DMG     2 S FOREST CITY         40.34N 89.83W
05/25/2011                   MASON              IL   FIRE DEPT/RESCUE

            MAJOR STRUCTURAL DAMAGE TO POPCORN FACTORY

0528 PM     TSTM WND GST     CHESTNUT                40.07N 89.20W
05/25/2011  E60.00 MPH       LOGAN              IL   MESONET

0528 PM     TSTM WND DMG     2 E LINCOLN             40.15N 89.33W
05/25/2011                   LOGAN              IL   NWS EMPLOYEE

            TREE TOPPED AT WFO LINCOLN

0530 PM     TSTM WND DMG     TALLULA                 39.95N 89.94W
05/25/2011                   MENARD             IL   EMERGENCY MNGR

            POWERLINE BLOWN DOWN.

0542 PM     TSTM WND DMG     GLASFORD                40.57N 89.81W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            NUMEROUS REPORTS OF TREES AND TREE LIMBS DOWN. SHED BLOWN
            OFF FOUNDATION AT 309 PART STREET. 4 FOOT TREE FELL ON
            HOUSE. FROM DAMAGE SUMMARY SHEET FROM PEORIA COUNTY
            EMERGENCY MANAGEMENT OFFICIALS.

0546 PM     TSTM WND DMG     4 S TRIVOLI             40.63N 89.88W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            LARGE LIMBS BLOWN DOWN AND A FENCE BLOWN DOWN. WEST OF
            BARTONVILLE AT THE CORNER OF OAK GROVE ROAD AND
            SMITHVILLE ROAD...4 MILES SOUTH OF TRIVOLI. FROM DAMAGE
            SUMMARY SHEET PROVIDED BY PEORIA COUNTY EMERGENCY
            MANAGEMENT OFFICIALS.

0550 PM     TSTM WND GST     1 N ABINGDON            40.82N 90.40W
05/25/2011  M61.00 MPH       KNOX               IL   MESONET

0551 PM     TSTM WND GST     PEORIA                  40.74N 89.61W
05/25/2011  M62.00 MPH       PEORIA             IL   ASOS

            RECORDED AT PEORIA AIRPORT

0552 PM     TSTM WND GST     1 W MORTON              40.61N 89.49W
05/25/2011  E60.00 MPH       TAZEWELL           IL   EMERGENCY MNGR

            WIND GUST ESTIMATED NEAR LAMP ROAD

0552 PM     TSTM WND DMG     PEORIA                  40.74N 89.61W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            NUMEROUS TREES AND POWER LINES BLOWN DOWN AT NUMEROUS
            LOCATIONS ACROSS THE CITY OF PEORIA. MANY TRAFFIC LIGHTS
            OUT. TIME OF OCCURANCE WAS BETWEEN 552 PM AND 605 PM.
            FROM DAMAGE SUMMARY SHEET PROVIDED BY CITY OF PEORIA
            EMERGENCY MANAGEMENT OFFICIALS.

0555 PM     TSTM WND DMG     3 WNW PEORIA            40.76N 89.66W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            10 INCH TREE BLOWN DOWN BLOCKING ROAD...14305 N.
            EDGEWATER DRIVE. FROM DAMAGE SUMMARY SHEET FROM PEORIA
            COUNTY EMERGENCY MANAGEMENT.

0555 PM     TSTM WND DMG     6 WNW PEORIA            40.78N 89.72W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            TREE BLOWN DOWN BLOCKING ROAD...3 MILES SOUTH OF
            EDWARDS...NEAR CORNER OF ROUTE 8 AND HEINZ LANE. FROM
            DAMAGE SUMMARY SHEET FROM PEORIA COUNTY EMERGENCY
            MANAGEMENT OFFICIALS.

0557 PM     TSTM WND DMG     KICKAPOO                40.80N 89.75W
05/25/2011                   PEORIA             IL   EMERGENCY MNGR

            TREES BLOWN DOWN ON THE KICKAPOO EDWARDS BLACKTOP...SOUTH
            OF ROUTE 150 BY ABOUT ONE 10TH OF A MILE. FROM PEORIA
            COUNTY EMERGENCY MANAGEMENT DAMAGE SUMMARY SHEET.

0602 PM     TSTM WND GST     EAST PEORIA             40.67N 89.55W
05/25/2011  E60.00 MPH       TAZEWELL           IL   MESONET

            10 INCH TREE LIMB SNAPPED OFF LIVE MAPLE TREE
            APPROXIMATELY 8 FEET ABOVE GROUND

0605 PM     HAIL             MOWEAQUA                39.63N 89.02W
05/25/2011  M0.50 INCH       SHELBY             IL   LAW ENFORCEMENT

0605 PM     FLOOD            PEKIN                   40.57N 89.63W
05/25/2011                   TAZEWELL           IL   EMERGENCY MNGR

            COURT STREET AT PARKWAY AND COURT STREET AT 14TH STREET
            HAD 8 INCHES OF STANDING WATER

0605 PM     TSTM WND DMG     PEKIN                   40.57N 89.63W
05/25/2011                   TAZEWELL           IL   MESONET

            3 INCH DIAMETER TREE BRANCH BLOWN DOWN

0606 PM     TORNADO          4 E HEYWORTH            40.31N 88.90W
05/25/2011                   MCLEAN             IL   EMERGENCY MNGR

            GRAIN BIN DESTROYED. FROM COUNTY EMERGENCY MANAGEMENT
            STORM SUMMARY FOLLOWUP.

0607 PM     HAIL             RIO                     41.11N 90.40W
05/25/2011  M1.00 INCH       KNOX               IL   FIRE DEPT/RESCUE

0607 PM     FUNNEL CLOUD     RIO                     41.11N 90.40W
05/25/2011                   KNOX               IL   FIRE DEPT/RESCUE

            TRAINED SPOTTERS REPORTED A FUNNEL CLOUD JUST SOUTH OF
            RIO

0609 PM     TORNADO          3 W LE ROY              40.36N 88.82W
05/25/2011                   MCLEAN             IL   EMERGENCY MNGR

            SEMI BLOWN OVER AT I-74 MILE MARKER 145. FROM COUNTY
            EMERGENCY MANAGEMENT STORM SUMMARY FOLLOWUP.

0609 PM     TSTM WND GST     RIO                     41.11N 90.40W
05/25/2011  E60.00 MPH       KNOX               IL   FIRE DEPT/RESCUE

0611 PM     TSTM WND DMG     LE ROY                  40.34N 88.76W
05/25/2011                   MCLEAN             IL   EMERGENCY MNGR

            TREE AND POWER POLES SNAPPED OFF

0615 PM     TSTM WND DMG     1 E WINDSOR             39.44N 88.58W
05/25/2011                   SHELBY             IL   CO-OP OBSERVER

            DELAYED REPORT. POWER POLES DOWN AND PART OF A MACHINE
            SHED BLOWN APART. TIME ESTIMATED.

0618 PM     TSTM WND DMG     KNOXVILLE               40.91N 90.29W
05/25/2011                   KNOX               IL   LAW ENFORCEMENT

            TREE BLOWN DOWN ALONG US-150. TIME ESTIMATED.

0619 PM     TSTM WND DMG     GALESBURG               40.95N 90.38W
05/25/2011                   KNOX               IL   EMERGENCY MNGR

            OUTBUILDINGS DAMAGED AT LOWES. LARGE VENT TORN OFF ROOF
            AT A SCHOOL, PLAYGROUND EQUIPMENT DAMAGED, AND SHED BLOWN
            OVER. TIME ESTIMATED.

0620 PM     TSTM WND GST     BLOOMINGTON             40.48N 88.97W
05/25/2011  M52.00 MPH       MCLEAN             IL   NWS EMPLOYEE

            MEASURED AT KBMI

0625 PM     HAIL             PESOTUM                 39.91N 88.27W
05/25/2011  M1.00 INCH       CHAMPAIGN          IL   EMERGENCY MNGR

0630 PM     TSTM WND DMG     EFFINGHAM               39.12N 88.55W
05/25/2011                   EFFINGHAM          IL   EMERGENCY MNGR

            SOME SMALL TO MEDIUM TREE LIMBS DOWN...AND A FEW POWER
            LINES DOWN.

0630 PM     TSTM WND DMG     1 W STRASBURG           39.35N 88.64W
05/25/2011                   SHELBY             IL   EMERGENCY MNGR

            SOME SHINGLES BLOWN OFF A HOUSE ROOF...DOORS BLOWN OFF AN
            OUTBUILDING...AND 10 INCH DIAMETER TREE LIMBS DOWN. TIME
            ESTIMATED.

0649 PM     HAIL             SEYMOUR                 40.10N 88.42W
05/25/2011  M1.75 INCH       CHAMPAIGN          IL   EMERGENCY MNGR

0655 PM     HAIL             CAMARGO                 39.80N 88.17W
05/25/2011  E1.50 INCH       DOUGLAS            IL   TRAINED SPOTTER

0658 PM     TORNADO          4 SE MAHOMET            40.17N 88.33W
05/25/2011                   CHAMPAIGN          IL   EMERGENCY MNGR

            TREE DAMAGE FROM TORNADO BRIEF TOUCHDOWN. FROM COUNTY
            EMERGENCY MANAGEMENT STORM SUMMARY FOLLOWUP.

0705 PM     TSTM WND DMG     CAMARGO                 39.80N 88.17W
05/25/2011                   DOUGLAS            IL   TRAINED SPOTTER

            8 AND 12 INCH DIAMETER BRANCHES FELL ON WOOD FENCE.

0707 PM     TSTM WND GST     SAVOY                   40.06N 88.25W
05/25/2011  M62.00 MPH       CHAMPAIGN          IL   ASOS

            WIND GUST REPORTED FROM CHAMPAIGN AIRPORT

0710 PM     HAIL             1 NW CHAMPAIGN          40.12N 88.28W
05/25/2011  M0.50 INCH       CHAMPAIGN          IL   TRAINED SPOTTER

0710 PM     TSTM WND DMG     FLORA                   38.67N 88.48W
05/25/2011                   CLAY               IL   EMERGENCY MNGR

            TREES AND POWER LINES BLOWN DOWN...ONE TREE WAS BLOWN
            DOWN ON HOUSE

0717 PM     TSTM WND GST     OGDEN                   40.12N 87.96W
05/25/2011  M68.00 MPH       CHAMPAIGN          IL   MESONET

0718 PM     TORNADO          1 SW CLAY CITY          38.68N 88.37W
05/25/2011                   CLAY               IL   EMERGENCY MNGR

            BARN DAMAGED...CONCRETE BLOCK BUILDING DAMAGED...GARAGE
            COLLAPSED...ROOF DAMAGE TO AT LEAST 15 HOUSES.

0720 PM     TSTM WND DMG     CLAY CITY               38.69N 88.35W
05/25/2011                   CLAY               IL   EMERGENCY MNGR

            NUMEROUS TREES BLOWN DOWN IN TOWN

0720 PM     TSTM WND DMG     2 E CLAY CITY           38.69N 88.31W
05/25/2011                   CLAY               IL   EMERGENCY MNGR

            NUMEROUS TREES BLOWN DOWN ALONG ROUTE 50 FROM TWO MILES
            EAST OF CLAY CITY TO THE RICHLAND COUNTY LINE.

0722 PM     TSTM WND GST     4 SE CLAY CITY          38.64N 88.30W
05/25/2011  M82.00 MPH       CLAY               IL   MESONET

            MEASURED WITH DAVIS WEATHER-VIEW WIND EQUIPMENT.

0730 PM     TSTM WND DMG     NEWTON                  38.99N 88.16W
05/25/2011                   JASPER             IL   EMERGENCY MNGR

            SEVERAL BUILDINGS WERE DAMAGED ON THE SOUTH SIDE OF
            NEWTON.

0735 PM     TORNADO          3 NW OLNEY              38.76N 88.12W
05/25/2011                   RICHLAND           IL   EMERGENCY MNGR

            BRIEF TORNADO TOUCHDOWN IN FIELD. FROM COUNTY EMERGENCY
            MANAGEMENT STORM SUMMARY FOLLOWUP.

0739 PM     TSTM WND DMG     4 SE POTOMAC            40.27N 87.74W
05/25/2011                   VERMILION          IL   EMERGENCY MNGR

            SIGNIFICANT TREE DAMAGE IN THE JAMESBURG AREA. ROADS ARE
            BLOCKED.

0747 PM     TSTM WND GST     LAWRENCEVILLE           38.73N 87.69W
05/25/2011  E60.00 MPH       LAWRENCE           IL   TRAINED SPOTTER

0757 PM     TORNADO          3 S ROBINSON            38.96N 87.74W
05/25/2011                   CRAWFORD           IL   EMERGENCY MNGR

            14 HOMES DAMAGED...3 UNINHABITABLE. FROM COUNTY
            EMERGENCY MANAGEMENT STORM SUMMARY FOLLOWUP.

0800 PM     TSTM WND DMG     2 N LAWRENCEVILLE       38.76N 87.69W
05/25/2011                   LAWRENCE           IL   MESONET

            NUMEROUS TREES DOWN ALONG ROUTE 1 TOWARD BIRDS...SOME
            TREES 2 TO 3 FEET IN DIAMATER

0800 PM     TSTM WND DMG     LAWRENCEVILLE           38.73N 87.69W
05/25/2011                   LAWRENCE           IL   MESONET

            NUMEROUS TREES DOWN...ONE TREE DOWN ON MOBILE HOME

0800 PM     TSTM WND DMG     BIRDS                   38.84N 87.67W
05/25/2011                   LAWRENCE           IL   EMERGENCY MNGR

            TREES AND POWER LINES DOWN

0810 PM     TSTM WND DMG     5 SW MARSHALL           39.35N 87.76W
05/25/2011                   CLARK              IL   UTILITY COMPANY

            12 POWER POLES BROKEN AND LINES DOWN. DAMAGE SCATTERED IN
            AN AREA PARALLELING I-70 FROM CLARK CENTER TO THE INDIANA
            BORDER.

0812 PM     TSTM WND DMG     MARSHALL                39.40N 87.69W
05/25/2011                   CLARK              IL   EMERGENCY MNGR

            TREE DOWN ON HOUSE

 May 25, 2011 Rainfall

  

City

County

Rainfall

Ellisville 3SE

Fulton

4.10

Wataga

Knox

4.03

Decatur

Macon

3.80

Hopewell

Marshall

3.64

Oakley

Macon

3.59

Decatur 2E

Macon

3.25

Bryant

Fulton

3.24

Knoxville

Knox

3.19

Peoria

Peoria

2.99

Oakland 7N

Douglas

2.83

Loxa

Coles

2.57

Lane

DeWitt

2.57

Galesburg

Knox

2.50

Henry

Marshall

2.45

Germantown Hills 2N

Woodford

2.43

Windsor 4NW

Shelby

2.42

Galesburg N

Knox

2.41

Astoria

Fulton

2.33

Bloomington SW

McLean

2.30

Clinton

DeWitt

2.30

Mahomet

Champaign

2.30

Gilson

Knox

2.29

Gridley

McLean

2.29

Lovington

Moultrie

2.28

Dunlap 3SE

Peoria

2.24

Mattoon

Coles

2.23

Cisco 2NE

Piatt

2.20

Bloomington

McLean

2.17

Rushville

Schuyler

2.08

Neoga

Cumberland

2.04

Homer 2N

Champaign

2.03

Pekin

Tazewell

2.02

Danville

Vermilion

2.00

Mattoon

Coles

1.96

Manito 1S

Mason

1.95

Alma

Marion

1.84

Beardstown

Cass

1.80

Bismarck 3W

Vermilion

1.79

Shelbyville

Shelby

1.78

Taylorville

Christian

1.75

Petersburg

Menard

1.75

Tuscola

Douglas

1.69

Ogden

Champaign

1.68

Jacksonville

Morgan

1.67

Forsyth

Macon

1.56

Nokomis

Montgomery

1.50

Morton

Tazewell

1.46

Riverton

Sangamon

1.40

Woodson

Morgan

1.30

Cisne

Wayne

1.27

Watson

Effingham

1.23

Olney 2S

Richland

1.21

Petersburg 8E

Menard

1.20

Chatham

Sangamon

1.19

Centralia

Marion

1.15

Eureka

Woodford

1.14

Sumner

Lawrence

1.13

Mackinaw 1N

Tazewell

1.04

Birds 2E

Lawrence

1.03

Martinsville

Clark

0.96

Flora

Clay

0.93

Martinsville 2NE

Clark

0.92

Springfield (COOP)

Sangamon

0.92

Lincoln NWS

Logan

0.80

Two rounds of strong to severe thunderstorms impacted central Illinois on May 25th.  The first occurred during the pre-dawn hours, while the second developed during the late afternoon and evening.  Widespread wind damage and a few tornadoes occurred: however, no injuries were reported.  

The early morning storms formed well north of an advancing warm front and were fed by a 70 mph low-level jet streak extending from southwest Missouri into central Illinois.  Despite relatively cool and stable conditions at the surface, the transport of warm/moist air aloft by the jet helped feed the thunderstorms as they tracked northeastward through the area.  Thanks to the strong winds a couple thousand feet aloft, many of the cells were able to produce damaging wind gusts of 50 to 60 mph all the way to ground level.  Periodic wind damage was observed in a corridor from just west of Jacksonville northeastward through Delavan in Tazewell County.  Other wind damage was concentrated across parts of Douglas, Champaign, and Vermilion counties.  A more intense thunderstorm cell produced two tornadoes across eastern Macon County, damaging a number of outbuildings and grain bins east of Decatur.    

After a brief lull around midday, additional storms began to fire along an outflow boundary left behind by the morning convection.  This boundary generally strecthed along the I-70 corridor from near Paris to just south of Taylorville.  Many of these storms produced small hail and gusty winds, with the strongest cell dropping golfball-sized hail in Paris.

By late afternoon, a deep upper-level low began approaching from the west.  Surface warming in conjunction with cold air aloft associated with this feature led to an increasingly unstable airmass across much of the Midwest.  An upper air balloon launched by NWS Lincoln at around 1 PM revealed CAPE values of over 1500J/kg.  It also showed strong low-level wind shear, with southeasterly surface winds of 5 mph, veering to southwesterly and increasing to 55 mph 6000ft aloft.  The wind shear was likely even greater further south and east closer to the outflow boundary.

Supercell thunderstorms rapidly developed in this favorable airmass across Missouri and west-central Illinois after 4 PM, then began slowly shifting eastward toward evening.  Numerous reports of wind damage and hail were received, along with intense rainfall rates leading to localized flash flooding.  Once the storms pushed into east-central Illinois by early evening, they had congealed into a linear structure with many weak circulations embedded along the leading edge.  Widespread wind damage occurred with this line of storms, with several spin-up tornadoes developing.  



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