Secondary warm front triggers showers and thunderstorms-some with hail

A warm front that was poised to pass through the Chicago area Friday night bringing a mostly sunny and unseasonably warm day to the Chicago area Saturday.  Obviously that did not work out.  While the first warm front moved into southern Wisconsin, a secondary warm front developed across northern Illinois triggering  a round of showers and thunderstorms that swept across the Chicago area early this afternoon, bringing heavy downpours, gusty winds and even some hail.

 

Large hail fell at Bolingbrook where  the stones reached 1.5 inches in diameter (ping-pong ball size). Other areas receiving significant hail included penny-size hail at Naperville, and nickel- size hail at Oak Brook. Many locations around the Chicago Metro area reported pea to marble size hail.

 

While the city sits in clouds and lingering showers with temperatures in the upper 50s and lower 60s,  areas Downstate  are enjoying a mostly sunny Saturday afternoon with temperatures in the lower 70s and gust south-southwest winds. As the afternoon wear on, showers should end in the Chicago area with some clearing expected allowing temperatures to climb into the middle and upper 60s with a few areas even reaching 70 degrees.

 

 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 PM CST SAT NOV 10 2012

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.

ILZ001-002-007-009-015-016-024-102100-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         MOSUNNY   70  54  56 S18G28    29.76F
STERLING*      MOSUNNY   66  54  63 S7        29.81S
SAVANNA*       MOSUNNY   70  53  56 S21       29.76F
$$

ILZ003-004-008-010-011-017-018-102100-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       PTSUNNY   67  53  61 S21G32    29.82F
FREEPORT*      MOSUNNY   65  55  69 S18G29    29.81F
DE KALB*       CLOUDY    64  57  76 S21       29.86R
$$

ILZ005-006-012>014-019>023-102100-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    60  54  80 S13       29.84F
CHICAGO-MIDWAY LGT RAIN  61  54  77 SE14G23   29.86F
AURORA         CLOUDY    63  56  78 S12       29.87R
LANSING*       TSTM      67  52  59 SW9G20    29.96R
WAUKEGAN       CLOUDY    63  52  67 S17G29    29.86F
DUPAGE AIRPORT CLOUDY    60  54  80 S10       29.85F
KANKAKEE*      PTSUNNY   70  54  57 S17       29.92F
WHEELING       CLOUDY    61  53  75 SE8       29.86F
NORTHERLY ISL    N/A     57  52  83 MISG        N/A
$$

LMZ740>746-102100-
SOUTHERN LAKE MICHIGAN

STATION/POSITION SKY/WX   TEMP    WIND        PRES    VSBY  WAVE
                          AIR SEA DIR/SP/G                  HT/PER
                          (F)     (DEG/KT/KT) (MB)    (MI)  (FT/S)
SOUTHERN BUOY              53 51  160/ 16/ 17 1013.0F         3/ 4
WAUKEGAN HARBOR            53     170/ 17/ 18 1012.5R
HARRISON CRIB              59     170/ 25/ 28   N/A
BURNHAM HARBOR             57     140/ 16       N/A
CALUMET HARBOR             62     130/  9/ 13 1013.8F
BURNS HARBOR               65     190/  9/ 11 1014.9R
MICHIGAN CITY              65     180/  4/  6 1015.8R
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-102100-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         MOSUNNY   74  53  48 S23G30    29.82F
GALESBURG*     MOSUNNY   69  52  55 S15G23    29.81F
MACOMB*        PTSUNNY   75  53  45 S20       29.83F
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-102100-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    73  55  53 S21G29    29.85S
DECATUR        SUNNY     73  51  46 S26       29.93F
PEORIA         MOSUNNY   72  54  53 S17G24    29.85S
LACON*         PTSUNNY   71  56  58 S10       29.84S
LINCOLN*       SUNNY     73  53  48 S23       29.87F
SPRINGFIELD    SUNNY     75  53  46 S20G26    29.88F
TAYLORVILLE    SUNNY     72  46  40 S22G29    29.91F
$$

ILZ033-039-045-046-055>057-062-063-102100-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      SUNNY     74  47  38 S26G32    29.95F
RANTOUL*       MOSUNNY   74  51  45 S15G24    29.95F
MATTOON        SUNNY     71  48  43 S14G24    29.99F
PARIS*         SUNNY     72  48  43 S21G29    30.01S
$$

ILZ079-100>102-102100-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     79  37  22 S14G25    29.92S
BELLEVILLE     SUNNY     76  49  39 S21G26    29.94F
CAHOKIA*       SUNNY     77  44  30 S17G24    29.92
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-102100-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     SUNNY     71  52  50 S23G29    30.04F
MARION         SUNNY     72  54  53 S15G22    30.06F
MT. VERNON     SUNNY     72  54  53 S20       30.04F
CENTRALIA*     SUNNY     72  51  47 S20G30    30.00S
SALEM*         SUNNY     73  42  32 S17G28    30.00F
$$

 

 

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