| 12 | 23:51 | N 9 | 8.00 | Thunderstorm Light Rain | BKN030CB BKN080 OVC100 | 66 | 65 | 96% | NA | NA | 29.90 | 1012.1 | |||||
| 12 | 22:51 | S 18 | 10.00 | Overcast | FEW025 BKN040 OVC080 | 72 | 71 | 97% | NA | NA | 29.86 | 1010.8 | |||||
| 12 | 21:51 | NE 12 | 10.00 | Overcast | SCT028 BKN060 OVC250 | 71 | 66 | 84% | NA | NA | 29.86 | 1010.8 | |||||
| 12 | 20:51 | NE 12 G 20 | 10.00 | Overcast | BKN048 BKN060 OVC095 | 73 | 66 | 79% | NA | NA | 29.84 | 1009.9 | |||||
| 12 | 19:51 | NE 3 | 10.00 | Thunderstorm | BKN037CB OVC047 | 72 | 67 | 84% | NA | NA | 29.81 | 1009.1 | 0.28 | ||||
| 12 | 17:51 | S 12 | 10.00 | Mostly Cloudy | SCT045 SCT055 BKN250 | 84 | 67 | 57% | NA | 87 | 29.81 | 1009.0 | |||||
| 12 | 16:51 | S 12 | 10.00 | Overcast | SCT036 SCT055 OVC250 | 83 | 67 | 59% | NA | 86 | 29.81 | 1009.1 | |||||
| 12 | 15:51 | S 14 | 10.00 | Overcast | SCT037 OVC250 | 83 | 66 | 57% | NA | 85 | 29.83 | 1009.8 | |||||
| 12 | 14:51 | S 13 | 10.00 | Overcast | SCT033 BKN050 BKN090 OVC250 | 81 | 66 | 61% | NA | 83 | 29.85 | 1010.4 | |||||
| 12 | 13:51 | S 14 | 10.00 | Overcast | FEW028 SCT049 OVC250 | 81 | 67 | 62% | NA | 83 | 29.86 | 1010.6 | |||||
| 12 | 12:51 | SW 13 | 10.00 | Overcast | SCT027 BKN050 OVC250 | 80 | 66 | 80 | 69 | 62% | NA | 82 | 29.87 | 1011.1 | |||
| 12 | 11:51 | SW 13 | 10.00 | Overcast | SCT025 BKN039 OVC250 | 80 | 67 | 64% | NA | 82 | 29.89 | 1011.6 | |||||
| 12 | 10:51 | SW 18 G 30 | 10.00 | Overcast | BKN025 BKN070 OVC300 | 78 | 66 | 67% | NA | 80 | 29.88 | 1011.4 | |||||
| 12 | 09:51 | SW 14 G 22 | 10.00 | Overcast | FEW021 BKN060TCU OVC300 | 77 | 66 | 69% | NA | 79 | 29.88 | 1011.4 | |||||
| 12 | 08:51 | S 18 G 28 | 10.00 | Overcast | FEW017 FEW060 OVC300 | 75 | 66 | 74% | NA | NA | 29.86 | 1010.7 | |||||
| 12 | 07:51 | S 12 | 10.00 | Overcast | FEW014 FEW060 BKN240 OVC300 | 71 | 65 | 81% | NA | NA | 29.86 | 1010.8 | |||||
| 12 | 06:51 | S 9 | 10.00 | Overcast | FEW012 FEW060 SCT110 OVC300 | 69 | 64 | 69 | 64 | 84% | NA | NA | 29.86 | 1010.9 | 0.01 | ||
| 12 | 05:51 | S 8 | 10.00 | Overcast | FEW080 BKN130 OVC220 | 66 | 61 | 84% | NA | NA | 29.86 | 1010.8 | 0.01 | ||||
| 12 | 04:51 | S 10 | 10.00 | Light Rain | SCT011 SCT040 BKN055 BKN220 | 64 | 59 | 84% | NA | NA | 29.86 | 1010.9 | |||||
| 12 | 03:51 | S 7 | 10.00 | Overcast | SCT014 BKN016 BKN050 OVC220 | 64 | 59 | 84% | NA | NA | 29.89 | 1011.6 | |||||
| 12 | 02:51 | S 10 | 10.00 | Partly Cloudy | FEW045 SCT070 SCT220 | 64 | 58 | 81% | NA | NA | 29.88 | 1011.4 | |||||
| 12 | 01:51 | SE 9 | 10.00 | Mostly Cloudy | SCT035 SCT070 BKN190 | 64 | 58 | 81% | NA | NA | 29.90 | 1012.0 | |||||
| 12 | 00:51 | S 9 | 10.00 | Partly Cloudy | FEW070 SCT120 SCT190 | 65 | 58 | 69 | 65 | 78% | NA | NA | 29.91 | 1012.5 |
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS
RAINFALL AMOUNTS FROM THE PERIOD 7:00 AM MONDAY, MAY 12, 2014 TO 7:00 AM TUESDAY, MAY 13, 2014.
ILLINOIS RAIN LOCATION (COUNTY): FALL (IN) LAKE BLUFF 1W (LAKE).........................4.06 HEBRON (MCHENRY).............................3.82 GLENCOE (COOK)...............................3.56 BOTANIC GARDENS (COOK).......................3.30 LAKE FOREST 2NNE (LAKE)......................3.30 WOODSTOCK 5NW (MCHENRY)......................3.12 ROCKTON 1ESE (WINNEBAGO).....................3.07 HARVARD (MCHENRY)............................2.57 LAKE ZURICH (LAKE)...........................2.50 BARRINGTON (LAKE)............................2.48 MUNDELEIN (LAKE).............................2.48 ELK GROVE VILLAGE 1ESE (COOK)................2.37 WOODSTOCK 4SW (MCHENRY)......................2.34 BEACH PARK 1W (LAKE).........................2.33 GURNEE 2W (LAKE).............................2.28 ELGIN (KANE).................................2.26 ELGIN 1S (KANE)..............................2.26 SPRING GROVE 2N (MCHENRY)....................2.21 WADSWORTH 1SSE (LAKE)........................2.16 WONDER LAKE 1WNW (MCHENRY)...................2.16 LAKE VILLA 1SSW (LAKE).......................2.14 OHARE (COOK).................................2.08 ZION (LAKE)..................................2.06 ROSCOE 2ESE (WINNEBAGO)......................2.06 ROSCOE 2SE (WINNEBAGO).......................2.06 WOODSTOCK 1SSW (MCHENRY).....................2.02 WAUKEGAN (LAKE)..............................2.02 WINNETKA 1ESE (COOK).........................2.01 BYRON 3N (OGLE)..............................2.00 HOFFMAN ESTATES 5W (COOK)....................1.99 MUNDELEIN (LAKE).............................1.98 ELGIN (KANE).................................1.94 BULL VALLEY 2WNW (MCHENRY)...................1.92 ROUND LAKE 2WNW (LAKE).......................1.89 GURNEE 2NE (LAKE)............................1.86 STERLING 4NE (LEE)...........................1.85 MILFORD (IROQUOIS)...........................1.80 WAUKEGAN 2N (LAKE)...........................1.78 HIGHWOOD 1S (LAKE)...........................1.74 YORKVILLE 1NE (KENDALL)......................1.68 ST. CHARLES 6NW (KANE).......................1.66 LODA (IROQUOIS)..............................1.65 ASHTON (LEE).................................1.64 WINTHROP HARBOR 1SSW (LAKE)..................1.59 PECATONICA 2S (WINNEBAGO)....................1.59 SCHAUMBURG 2E (COOK)........................1.52 MCHENRY (MCHENRY)............................1.51 WHEELING (COOK)..............................1.41 FOX LAKE 2SE (LAKE)..........................1.40 ST CHARLES 1SW (KANE)........................1.35 DIXON 3NNW (LEE).............................1.33 RIVERWOODS (LAKE)............................1.33 LINCOLNSHIRE 1.3WSW (LAKE)...................1.30 POLO (OGLE)..................................1.29 BUCKLEY (IROQUOIS)...........................1.28 LA SALLE (LA SALLE)..........................1.27 ELBURN (KANE)................................1.26 ELGIN 2WNW (KANE)............................1.25 ROCKFORD 3NE (WINNEBAGO).....................1.25 BUFFALO GROVE 2N (LAKE)......................1.24 ELBURN (KANE)................................1.22 WATSEKA (IROQUOIS)...........................1.22 GIBSON 3WNW (FORD)...........................1.21 WATSEKA 6.9WNW (IROQUOIS)....................1.21 WINNETKA 1S (COOK)...........................1.20 LAKEMOOR 2SE (LAKE)..........................1.20 PARK RIDGE (COOK)............................1.17 ELGIN 1WSW (KANE)............................1.17 ELBURN 3NNE (KANE)...........................1.14 GENEVA 2WSW (KANE)...........................1.14 ELGIN 2W (KANE)..............................1.14 GLEN ELLYN 1NE (DU PAGE).....................1.11 EARLVILLE 3S (LA SALLE)......................1.10 BELVIDERE (BOONE)............................1.08 GENEVA 1SSW (KANE)...........................1.07 ST CHARLES (KANE)............................1.05 BATAVIA (KANE)...............................1.01 BATAVIA 1WNW (KANE)..........................1.01 CARY (MCHENRY)...............................1.01 ELK GROVE VILLAGE 2WSW (COOK)................0.98 WEST CHICAGO (DU PAGE).......................0.97 AMBOY (LEE)..................................0.94 ISLAND LAKE 1SSW (MCHENRY)...................0.93 CAROL STREAM (DU PAGE).......................0.91 WEST CHICAGO 3N (DU PAGE)....................0.90 LOMBARD 1NNW (DU PAGE).......................0.90 ASHKUM 5.6E (IROQUOIS).......................0.89 NORTH AURORA 2NE (KANE)......................0.88 ROCHELLE (OGLE)..............................0.88 AMBOY (LEE)..................................0.86 ROCKFORD 1NW (WINNEBAGO).....................0.84 ST ANNE (KANKAKEE)...........................0.80 MOMENCE (KANKAKEE)...........................0.77 CAPRON (BOONE)...............................0.74 GENOA (DE KALB)..............................0.73 CHEBANSE (KANKAKEE)..........................0.73 STEWARD (LEE)................................0.73 LOMBARD 1NNW (DU PAGE).......................0.72 SUGAR GROVE 1ENE (KANE)......................0.72 EVANSTON 1SSE (COOK).........................0.70 LANSING (COOK)...............................0.70 ALGONQUIN 1N (MCHENRY).......................0.68 YORKVILLE 1W (KENDALL).......................0.67 ROCKFORD (WINNEBAGO).........................0.66 FAIRBURY (LIVINGSTON)........................0.65 LISBON 4NE (KENDALL).........................0.65 OTTAWA 2N (LA SALLE).........................0.65 OTTAWA (LA SALLE)............................0.65 PARK FOREST (COOK)...........................0.65 SUGAR GROVE 1NE (KANE).......................0.63 YORKVILLE 2SE (KENDALL)......................0.62 GLENWOOD 2ESE (COOK).........................0.61 MENDOTA (LA SALLE)...........................0.60 PONTIAC (LIVINGSTON).........................0.60 ROCHELLE (OGLE)..............................0.60 PONTIAC 1ESE (LIVINGSTON)....................0.59 NEW LENOX 3E (WILL)..........................0.59 VILLA PARK 1NW (DU PAGE).....................0.58 SHABBONA (DE KALB)...........................0.58 GLEN ELLYN 2SSE (DU PAGE)....................0.57 MONTGOMERY 1SSE (KENDALL)....................0.57 PERU (LA SALLE)..............................0.57 PONTIAC 1SE (LIVINGSTON).....................0.56 DWIGHT (LIVINGSTON)..........................0.55 SHERIDAN 3SSE (LA SALLE).....................0.55 NEW LENOX 2SE (WILL).........................0.55 WILMINGTON 6NW (WILL)........................0.55 PALATINE 1E (COOK)...........................0.54 SCHAUMBURG 3WSW (COOK).......................0.54 COAL CITY (GRUNDY)...........................0.54 PLAINFIELD 5SW (KENDALL).....................0.54 CHANNAHON (WILL).............................0.53 EARLVILLE 8SSE (LA SALLE)....................0.53 AURORA (KANE)................................0.52 ORLAND HILLS 1SE (COOK)......................0.51 ARLINGTON HEIGHTS 2NNW (COOK)................0.51 KANKAKEE 3SE (KANKAKEE)......................0.50 RICHTON PARK (COOK)..........................0.50 TINLEY PARK 3NW (COOK).......................0.49 MINOOKA (GRUNDY).............................0.49 BRACEVILLE (GRUNDY)..........................0.48 CHENOA 4NNW (LIVINGSTON).....................0.48 JOLIET (WILL)................................0.48 BOURBONNAIS (KANKAKEE).......................0.47 MORRIS (GRUNDY)..............................0.47 COAL CITY 4NNW (GRUNDY)......................0.46 LANSING (COOK)...............................0.46 HARWOOD HEIGHTS 2NNE (COOK)..................0.46 CARBON HILL 3.1N (GRUNDY)....................0.46 MENDOTA 2SE (LA SALLE).......................0.46 CHANNAHON 1NNE (WILL)........................0.46 WILMINGTON 3SE (WILL)........................0.46 NEW LENOX 4SE (WILL).........................0.46 MORRIS 1SW (GRUNDY)..........................0.45 MORRIS 6ESE (GRUNDY).........................0.45 MONTGOMERY 2SSE (KENDALL)....................0.45 BONFIELD 4NNE (KANKAKEE).....................0.45 OTTAWA 1NW (LA SALLE)........................0.45 ELMHURST 1ESE (DU PAGE)......................0.44 MAZON 0.5ENE (GRUNDY)........................0.44 OGLESBY 0.4N (LA SALLE)......................0.44 OGLESBY 1ESE (LA SALLE)......................0.44 JOLIET 3WNW (WILL)...........................0.44 MANHATTAN 2SE (WILL).........................0.43 JOLIET 2N (WILL).............................0.43 FLOSSMOOR (COOK).............................0.42 NORTH RIVERSIDE (COOK).......................0.42 BONFIELD 4WSW (KANKAKEE).....................0.42 CRETE 3E (WILL)..............................0.42 LISLE (DU PAGE)..............................0.41 JOLIET (WILL)................................0.41 HOMEWOOD (COOK)..............................0.40 ELMHURST (DU PAGE)...........................0.40 DWIGHT 4NNW (GRUNDY).........................0.40 YORKVILLE (KENDALL)..........................0.40 PLAINFIELD 1SW (WILL)........................0.40 LISLE MORTON ARB (DU PAGE)...................0.40 ROMEOVILLE (WILL)............................0.39 WESTMONT 1SSE (DU PAGE)......................0.38 MANHATTAN 5ENE (WILL)........................0.38 MANHATTAN (WILL).............................0.38 DE KALB 1W (DE KALB).........................0.37 AURORA 4SE (DU PAGE).........................0.37 LOCKPORT 1SE (WILL)..........................0.37 OAK BROOK (DU PAGE)..........................0.37 WESTMONT (DU PAGE)...........................0.37 ALSIP (COOK).................................0.36 PALOS PARK 1SW (COOK)........................0.36 ORLAND PARK 5WNW (WILL)......................0.36 KANKAKEE (KANKAKEE)..........................0.36 PLAINFIELD (WILL)............................0.36 DARIEN 1NNE (DU PAGE)........................0.35 PEOTONE (WILL)...............................0.35 PEOTONE (WILL)...............................0.35 OAK PARK 1NNE (COOK).........................0.34 AURORA 4SE (DU PAGE).........................0.34 PEOTONE (WILL)...............................0.34 MARSEILLES (LA SALLE)........................0.34 BOLINGBROOK 3NE (DU PAGE)....................0.33 STREATOR 4ENE (LA SALLE).....................0.33 DE KALB (DE KALB)............................0.32 LA GRANGE PARK 1SSW (COOK)...................0.32 BOURBONNAIS 2NNE (KANKAKEE)..................0.32 OAK PARK 2S (COOK)...........................0.31 OAK PARK 1SW (COOK)..........................0.31 CORTLAND (DE KALB)...........................0.31 CRETE 3SSW (WILL)............................0.31 OAK LAWN (COOK)..............................0.30 COUNTRYSIDE 1ENE (COOK)......................0.30 COUNTRYSIDE 1NNE (COOK)......................0.30 LISLE 1SE (DU PAGE)..........................0.30 CHICAGO 6ESE (COOK)..........................0.29 LINCOLNWOOD 2E (COOK)........................0.29 BURR RIDGE 2SW (DU PAGE).....................0.29 STREATOR (LIVINGSTON)........................0.28 WORTH (COOK).................................0.27 CHICAGO 5NNW (COOK)..........................0.27 DE KALB (DE KALB)............................0.27 RAVENSWOOD MANOR (COOK)......................0.25 STREATOR 1WSW (LA SALLE).....................0.25 MIDWAY COOP (COOK)...........................0.25 CHICAGO RIDGE (COOK).........................0.24 MARSEILLES 6WNW (LA SALLE)...................0.23 CHICAGO 5NE (COOK)...........................0.21 CHICAGO 6NNE (COOK)..........................0.20 MIDWAY (COOK)................................0.17 JOLIET LOCK/DAM (WILL).......................0.05
DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0249 PM CDT MON MAY 12 2014 VALID 122000Z - 131200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE UPPER GREAT LAKES TO TX... ...SUMMARY... CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE INTO THIS EVENING FROM WISCONSIN AND LOWER MICHIGAN SOUTHWARD ACROSS PARTS OF THE MID-MISSISSIPPI VALLEY INTO THE SOUTHERN PLAINS. ...PRIMARY CHANGES TO THE DAY 1 CONVECTIVE OUTLOOK... /1/ THE ERN EXTENT OF THE SLIGHT RISK AREA WAS TRIMMED ACROSS PORTIONS OF NRN OHIO AND NRN INDIANA WHERE DEEP FORCING FOR ASCENT WILL REMAIN WEAK THROUGH THE REMAINDER OF THE PERIOD. LATEST SFC MESOANALYSIS SUGGESTS THAT STRONGER PRESSURE FALLS AND FOCI FOR MESOSCALE ASCENT ARE PRIMARILY RELEGATED TO LOWER MICHIGAN...WHERE A GREATER RISK FOR ORGANIZED SVR STORMS WILL EXIST. /2/ THE NRN BOUND OF THE SLIGHT RISK AREA FROM ERN MN TO NRN LOWER MI HAS BEEN EDGED SWD/SEWD OWING TO THE ANTICIPATION THAT DESTABILIZATION INTO THESE AREAS WILL BE HINDERED BY /A/ WIDESPREAD CLOUDS AND/OR PRECIPITATION...AND /B/ DEEPER FRONTAL INTRUSION EWD INTO PORTIONS OF THE UPPER MS VALLEY. /3/ THE WRN EXTENT OF THE SLIGHT RISK AREA HAS BEEN SHIFTED EWD OWING TO THE EWD PROGRESSION OF THE COMPOSITE SYNOPTIC COLD FRONT/OUTFLOW BOUNDARIES...W OF WHICH THE SVR RISK SHOULD BE NIL. ..COHEN.. 05/12/2014 .PREV DISCUSSION... /ISSUED 1111 AM CDT MON MAY 12 2014/ ...SYNOPSIS... A HIGH-AMPLITUDE AND ONLY SLIGHTLY PROGRESSIVE PATTERN WILL PERSIST OVER NORTH AMERICA THROUGH THE DAY ONE PERIOD WITH THE PRIMARY FEATURE OF INTEREST BEING A FULL-LATITUDE TROUGH WHICH WILL EDGE EWD FROM THE ROCKIES INTO GREAT PLAINS. WITHIN THIS LARGE-SCALE PATTERN...A 70-80 KT MIDLEVEL JET STREAK OBSERVED OVER THE CNTRL/SRN PLAINS THIS MORNING WILL PROGRESS NEWD INTO THE UPPER MS VALLEY BY TONIGHT. AT THE SURFACE...LOW PRESSURE OVER CNTRL IA WILL DEEPEN SLIGHTLY PRIOR TO UNDERGOING OCCLUSION AS IT DEVELOPS NNEWD INTO WRN ONTARIO. AN ASSOCIATED COLD FRONT WILL ADVANCE EWD INTO THE UPPER GREAT LAKES AND MID MS VALLEY WITH THE SRN EXTENSION OF THIS BOUNDARY MOVING SEWD THROUGH THE OZARK PLATEAU AND MUCH OF THE SRN PLAINS. THIS COLD FRONT WILL SERVE AS THE PRIMARY FOCUS FOR STRONG TO SEVERE TSTM DEVELOPMENT THIS AFTERNOON INTO TONIGHT. ...UPPER GREAT LAKES INTO MIDWEST/OH VALLEY THIS AFTERNOON/EVENING... MULTIPLE CLUSTERS OF TSTMS ARE ONGOING AS OF MID MORNING FROM ERN IA INTO WI/LOWER MI/OH...AIDED BY CONVECTIVELY GENERATED VORTICITY MAXIMA AND A BROAD ZONE OF WAA WITHIN THE EXIT REGION OF A NOCTURNAL LLJ. A SUBSET OF THESE EARLY-DAY STORMS WILL LIKELY CONTINUE INTO AFTERNOON WITH ADDITIONAL STORMS FORMING ALONG THE SYNOPTIC COLD FRONT AND RESIDUAL OUTFLOW BOUNDARIES. 12Z OBSERVED SOUNDINGS INDICATE THAT THE WARM SECTOR AIR MASS HAS BECOME QUITE MOIST WITH LOWEST 100-MB MEAN-MIXING RATIOS AS HIGH AS 13-14 G/KG. THIS MOISTURE WILL COMBINE WITH DAYTIME HEATING AND STEEPENING MIDLEVEL LAPSE RATES TO YIELD AFTERNOON MLCAPE VALUES APPROACHING 1500-2500 J/KG. THE STRONGEST VERTICAL SHEAR WILL RESIDE ACROSS MN/IA INTO WI/NRN IL WHERE A NWD-MIGRATING 30-40 KT SLY LLJ WILL ALIGN WITH THE MIDLEVEL JET STREAK PROGRESSING NEWD FROM THE CNTRL PLAINS. WHERE STRONGER HEATING/DESTABILIZATION CAN OCCUR...THE ENVIRONMENT WILL SUPPORT BOWING AND SUPERCELL STRUCTURES WITH A RISK FOR DAMAGING WINDS...LARGE HAIL AND PERHAPS A COUPLE OF TORNADOES. FARTHER TO THE E INTO LOWER MI AND THE OH VALLEY...VERTICAL SHEAR WILL DECREASE OWING TO THE PROXIMITY OF THE MIDLEVEL RIDGE AXIS. HOWEVER...GIVEN AT LEAST MODESTLY STRONG DEEP SWLY FLOW AND THE POTENTIAL FOR MODERATE AFTERNOON INSTABILITY...SOME ORGANIZED LINE SEGMENTS AND/OR MULTICELL CLUSTERS APPEARS POSSIBLE WITH DAMAGING WINDS AND LARGE HAIL BEING THE PRIMARY HAZARDS. ...OZARK PLATEAU TO TX THIS AFTERNOON/EVENING... WHILE LARGE-SCALE FORCING FOR ASCENT WILL REMAIN MINIMAL ACROSS THE REGION...LOW-LEVEL UPLIFT ALONG THE SYNOPTIC COLD FRONT AND A PROMINENT GRAVITY WAVE PROPAGATING THROUGH AR AND CNTRL/ERN TX WILL FOSTER SCATTERED TSTM DEVELOPMENT. THE AREA WILL REMAIN ON THE SERN/ERN PERIPHERY OF STRONGER MID AND HIGH-LEVEL FLOW ATTENDANT TO THE CNTRL U.S. TROUGH...EFFECTIVELY LIMITING THE POTENTIAL FOR HIGHER-ORDER STORM MODES. NONETHELESS...THE CO-LOCATION OF ABUNDANT BOUNDARY-LAYER MOISTURE AND STEEP MIDLEVEL LAPSE RATES /AND RESULTING IN MLCAPE OF 1500-3000+ J PER KG/ WILL PROMOTE STRONG-SEVERE STORMS WITH THE POTENTIAL FOR UPSCALE GROWTH INTO A BROKEN BAND WITH AN ATTENDANT RISK FOR DAMAGING WIND GUSTS AND HAIL.
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 12 2014...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 452 PM 92 1956 69 15 55
MINIMUM 64 408 AM 31 1981 47 17 37
AVERAGE 74 58 16 46
PRECIPITATION (IN)
YESTERDAY 2.09 2.67 1935 0.12 1.97 0.00
MONTH TO DATE 3.48 1.39 2.09 0.63
SINCE MAR 1 8.03 7.27 0.76 11.31
SINCE JAN 1 13.33 10.79 2.54 17.90
SNOWFALL (IN)
YESTERDAY 0.0 T 1923 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 13.7 6.8 6.9 10.5
SINCE JUL 1 82.0 36.3 45.7 30.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 8 -8 19
MONTH TO DATE 91 114 -23 111
SINCE MAR 1 1604 1447 157 1647
SINCE JUL 1 7019 6181 838 6049
COOLING
YESTERDAY 9 1 8 0
MONTH TO DATE 16 10 6 5
SINCE MAR 1 17 20 -3 13
SINCE JAN 1 17 20 -3 13
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 49 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 12.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1000 PM
LOWEST 55 500 PM
AVERAGE 78
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1991
1956
MINIMUM TEMPERATURE (F) 47 34 1996
1888
SUNRISE AND SUNSET
MAY 13 2014...........SUNRISE 533 AM CDT SUNSET 803 PM CDT
MAY 14 2014...........SUNRISE 532 AM CDT SUNSET 804 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
000
CDUS43 KLOT 131204 CCA
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT TUE MAY 13 2014...CORRECTION FOR PRECIP...
HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather
LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)
WunderMap® with Temperature/Wind Data || Google: O'Hare Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...
