Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >
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PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 637 PM CDT SAT APR 2 2016 ...HIGHEST WIND GUSTS ON SATURDAY APRIL 2... LAND LOCATION SPEED TIME/DATE ---------------------------------------------------- PAXTON 64 MPH 0110 PM 04/02 PONTIAC AIRPORT 60 MPH 1135 AM 04/02 2 SSE STEWARD 59 MPH 1225 PM 04/02 PERU AIRPORT 59 MPH 1135 AM 04/02 SUGAR GROVE - AURORA AIRPORT 56 MPH 1209 PM 04/02 MORRIS AIRPORT 56 MPH 0135 PM 04/02 CHICAGO MIDWAY 56 MPH 1141 AM 04/02 ROCHELLE AIRPORT 55 MPH 0135 PM 04/02 ROMEOVILLE - LEWIS AIRPORT 54 MPH 0235 PM 04/02 CHICAGO O`HARE 54 MPH 1225 PM 04/02 ROCKFORD AIRPORT 54 MPH 1156 AM 04/02 DE KALB AIRPORT 52 MPH 1255 PM 04/02 VALPARAISO AIRPORT 52 MPH 0129 PM 04/02 DUPAGE AIRPORT 51 MPH 1205 PM 04/02 WHEELING - CHI EXEC AIRPORT 51 MPH 0107 PM 04/02 RENSSELAER AIRPORT 51 MPH 1235 PM 04/02 KANKAKEE AIRPORT 49 MPH 1215 PM 04/02 LANSING AIRPORT 48 MPH 1215 PM 04/02 WAUKEGAN AIRPORT 46 MPH 0401 PM 04/02 JOLIET AIRPORT 44 MPH 0135 PM 04/02 MARINE LOCATION SPEED TIME/DATE ---------------------------------------------------- CHICAGO HARRISON-DEVER CRIB 61 MPH 0131 PM 04/02 BURNS HARBOR 60 MPH 1230 PM 04/02 WAUKEGAN HARBOR 49 MPH 1140 AM 04/02 OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURE. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL. $$ MTF/RC |
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
544 PM CDT SAT APR 02 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM SNOW 3 SW MIDWAY AIRPORT 41.75N 87.79W
04/02/2016 M0.5 INCH COOK IL CO-OP OBSERVER
LIQUID EQUIVALENT 0.06 INCHES.
0318 PM HEAVY SNOW YORKVILLE 41.64N 88.45W
04/02/2016 U0.0 INCH KENDALL IL CO-OP OBSERVER
HEAVY SNOW AND STRONG WINDS CAUSING VISIBILITY BELOW 200
FEET.
0300 PM HEAVY SNOW ROMEOVILLE 41.65N 88.09W
04/02/2016 U0.0 INCH WILL IL OFFICIAL NWS OBS
HEAVY SNOW AND STRONG WINDS CAUSING VISIBILITY BRIEFLY
UNDER 1/8 MILE.
0252 PM HEAVY SNOW DUPAGE AIRPORT 41.92N 88.25W
04/02/2016 U0.0 INCH DUPAGE IL ASOS
OBSERVATION WITH 1/4 MILE VISIBILITY IN HEAVY
THUNDERSNOW.
0220 PM NON-TSTM WND DMG 4 NNE LITTLE ROCK 41.76N 88.55W
04/02/2016 KANE IL TRAINED SPOTTER
TWO SMALL SOFTWOOD TREES UPROOTED IN BIG ROCK.
0215 PM SNOW 2 NE ELGIN 42.06N 88.26W
04/02/2016 M0.4 INCH COOK IL COCORAHS
HIGHEST WIND GUST ON THE DAY ESTIMATED AT 50 MPH AT 11AM.
0210 PM NON-TSTM WND DMG 3 N ROCKFORD 42.31N 89.06W
04/02/2016 WINNEBAGO IL TRAINED SPOTTER
LARGE TREE BRANCH SNAPPED OFF FROM A MATURE MAPLE TREE.
0151 PM HEAVY SNOW OHARE AIRPORT 41.98N 87.90W
04/02/2016 U0.0 INCH COOK IL ASOS
1/8 MILE VISIBILITY IN HEAVY SNOW WITH 44 MPH WIND GUST
AT OBSERVATION TIME.
0135 PM NON-TSTM WND GST 3 SW MIDWAY AIRPORT 41.75N 87.79W
04/02/2016 M59.00 MPH COOK IL CO-OP OBSERVER
PEAK WIND GUST FOR THE DAY. ALSO 0.2 INCHES OF SNOW
MEASURED ON THE DAY.
0131 PM NON-TSTM WND GST 4 NE CHICAGO 41.92N 87.57W
04/02/2016 M61.00 MPH LMZ741 IL C-MAN STATION
52.7 KT PEAK WIND GUST ON THE DAY AT THE CHICAGO
HARRISON-DEVER CRIB.
1250 PM HEAVY SNOW ELK GROVE VILLAGE 42.01N 87.99W
04/02/2016 M0.4 INCH COOK IL COCORAHS
HIGH WINDS WITH SNOW GRAINS AND WHITE OUT CONDITIONS
WITHIN THE HOUR. VISIBILITY TO 1/8 MILE OR LESS.
1245 PM HEAVY SNOW 3 NNW LINCOLN PARK 41.97N 87.66W
04/02/2016 U0.0 INCH COOK IL PUBLIC
HEAVY THUNDERSNOW AT LAWRENCE AVE AND BROADWAY STREET IN
UPTOWN SECTION OF CHICAGO.
1245 PM HEAVY SNOW 2 E SCHAUMBURG 42.03N 88.04W
04/02/2016 M0.5 INCH COOK IL COCORAHS
1/2 INCH OF SNOW IN 10 MINUTES UP TO OBSERVATION TIME.
VISIBILITY LESS THAN 1/16 MILE.
1241 PM NON-TSTM WND DMG ST. ANNE 41.02N 87.72W
04/02/2016 KANKAKEE IL PUBLIC
SMALL TREE BLOWN DOWN. RELAYED VIA FACEBOOK.
1230 PM NON-TSTM WND DMG ELGIN 42.04N 88.29W
04/02/2016 KANE IL PUBLIC
SOFTWOOD TREE BLOWN OVER JUST WEST OF IL 19 AND ROHRSSEN
ROAD. TIME OF OCCURRENCE UNKNOWN. RELAYED VIA TWITTER.
1230 PM NON-TSTM WND DMG BATAVIA 41.85N 88.30W
04/02/2016 KANE IL TRAINED SPOTTER
POWERPOLES DOWN ALONG WESTERN AVENUE.
1220 PM NON-TSTM WND DMG LELAND 41.61N 88.80W
04/02/2016 LA SALLE IL TRAINED SPOTTER
MEDIUM SIZED TREE BRANCHES BLOWN DOWN. POWER OUTAGES IN
THE AREA.
1215 PM NON-TSTM WND DMG NORTH AURORA 41.80N 88.33W
04/02/2016 KANE IL NWS EMPLOYEE
SECTION OF SHINGLES BLOWN FROM ROOF.
1203 PM HEAVY SNOW CRYSTAL LAKE 42.23N 88.33W
04/02/2016 E0.0 INCH MCHENRY IL TRAINED SPOTTER
THUNDERSNOW WITH NEAR ZERO VISIBILITY. SEVERAL OTHER
REPORTS OF NEAR ZERO VISIBILITY IN PARTS OF MCHENRY AND
LAKE COUNTIES IN ILLINOIS BETWEEN ABOUT 1030 AM AND NOON.
1141 AM NON-TSTM WND GST MIDWAY AIRPORT 41.78N 87.75W
04/02/2016 M56.00 MPH COOK IL ASOS
1135 AM NON-TSTM WND GST PONTIAC 40.88N 88.64W
04/02/2016 M60.00 MPH LIVINGSTON IL AWOS
1135 AM NON-TSTM WND GST PERU 41.34N 89.13W
04/02/2016 M59.00 MPH LA SALLE IL AWOS
1133 AM NON-TSTM WND DMG CHANNAHON 41.43N 88.22W
04/02/2016 WILL IL PUBLIC
SHINGLES BLOWN OFF OF SOME HOUSES. RELAYED VIA FACEBOOK.
1130 AM NON-TSTM WND GST LIBERTYVILLE 42.28N 87.97W
04/02/2016 M59.00 MPH LAKE IL EMERGENCY MNGR
MEASURED AT LAKE COUNTY EOC.
1120 AM HAIL 1 SSW DE MOTTE 41.19N 87.21W
04/02/2016 M0.25 INCH JASPER IN COCORAHS
PEA SIZED GRAUPEL.
1100 AM NON-TSTM WND DMG PERU 41.34N 89.13W
04/02/2016 LA SALLE IL PUBLIC
SOFTWOOD TREE UPROOTED.
0800 AM SNOW 1 W BEACH PARK 42.42N 87.88W
04/02/2016 M0.5 INCH LAKE IL COCORAHS
&&
$$
RC
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| Mean sea-level pressure (left) and 3hr mean sea-level pressure change (right) looped hourly from 2 a.m. through 7 p.m. on April 2nd. The low pressure magnitude of 997 mb over Milwaukee during the morning is anomalously low especially for a springtime "Clipper" system, and such deep lows have an inherent stronger wind field due to the pressure gradient force. In addition, the rapid speed of this low (which is common for "Clipper" systems) induced a high rate of change in pressure as shown by the right loop. This strengthened the isallobaric component to the wind. This is strongest in the zone between the maximum pressure falls and rises, which passes directly over northern Illinois and northwest Indiana. |
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| GOES Water Vapor imagery looped with cloud-to-ground lightning shown from 2 a.m. through 7 p.m. on Saturday April 2nd. |
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| A graphic showing the rapid difference at the same locations over a small amount of time. This is common with snow squalls, as the intensity of the snow and the strong winds helping to suspend some of the falling snow together sharply reduce the visibility. |
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| From Wauconda, IL courtesy of Dirk Leahy. This shows a strong precipitation shaft of snow, possibly mixed with graupel. |
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| From Rockbridge, IL, courtesy of Kirby Brannan. |
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| From near Devon and Harlem in Chicago, courtesy of Diane Krzywonos. | From Lake Villa courtesy of Cathy Nestor. |
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