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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 >

Heat on May 14, 2013 Leads to Near-Record One Day Warm-Up

 

 High Temps   |   Record at Rockford   |   Incredible 24-Hour Warm-Up  |  Meteorology

 


 Fast Facts

 

  • The 92° at Rockford tied a record high temperature for May 14th, and the first 90°+ temperature since Sept 5, 2012.
  • The 91° at Chicago was the first 90° temperature since Sept 4, 2012.
  • This was the largest one-day temperature change in the month of May on record for both Rockford (59°) and Chicago (54°).
  • In the past decade, only 2010 had an earlier first 90° day in Rockford and Chicago (May 10th). 

 


 

High Temperatures

High Temps

MAXIMUM/MINIMUM TEMPERATURE AND PRECIPITATION TABLE
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
736 PM CDT TUE MAY 14 2013

HIGH TEMPERATURE LAST 18 HOURS
LOW TEMPERATURE LAST 18 HOURS
PRECIPITATION LAST 24 HOURS

.BR LOT 0514 C DH19/TAIRZS/TAIRZI/PPDRZZ

:ID  LOCATION                  HIGH   LOW    PCPN
ORD: CHICAGO-O`HARE           :  91  /  50  /  0.00
CNII2: CHICAGO-NORTHERLY ISL  :  84  /  55  /
MDW: CHICAGO-MIDWAY           :  90  /  57  /  0.00
LOTI2: NWS CHICAGO-ROMEOVILLE :  91  /  56  /  0.00
RFD: ROCKFORD AIRPORT         :  92  /  52  /  0.00
DPA: DUPAGE AIRPORT           :  91  /  51  /  0.00
UGN: WAUKEGAN AIRPORT         :  86  /  49  /  0.00
ARR: AURORA/SUGAR GROVE       :  92  /  52  /  0.00
PWK: WHEELING/CHI EXEC        :  89  /  48  /  0.00
VPZ: VALPARAISO IN            :  88  /  52  /  0.00
:
UNOFFICIAL SUPPLEMENTAL AWOS LOCATIONS
:
DKB: DEKALB                 :  91  /  53  /
JOT: JOLIET                 :  90  /  56  /
IKK: KANKAKEE               :  90  /  52  /
IGQ: LANSING                :  87  /  54  /
C09: MORRIS                 :  92  /  56  /
VYS: PERU                   :  91  /  55  /
PNT: PONTIAC                :  93  /  55  /
RZL: RENSSELAER IN          :  90  /  52  /
RPJ: ROCHELLE               :  93  /  53  /
.END
:
THESE DATA ARE PRELIMINARY AND HAVE NOT UNDERGONE FINAL QUALITY
CONTROL BY THE NATIONAL CLIMATIC DATA CENTER /NCDC/.  THEREFORE...
THESE DATA ARE SUBJECT TO REVISION. FINAL AND CERTIFIED CLIMATE DATA
CAN BE ACCESSED AT WWW.NCDC.NOAA.GOV.

$$

 


 

Record High at Rockford

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
0450 PM CDT TUE MAY 14 2013

...RECORD HIGH TEMPERATURE TIED AT ROCKFORD IL...

THE HIGH TEMPERATURE AT ROCKFORD IL AS OF 4PM TODAY WAS 92 DEGREES.
THIS TIES THE RECORD HIGH FOR THE DATE SET IN 2007. THE 59 DEGREE
WARM-UP FROM THE LOW OF 33 DEGREES YESTERDAY MORNING TO THE HIGH
TEMPERATURE THIS AFTERNOON IS THE LARGEST EVER 1-DAY WARM-UP IN MAY
AND TIED FOR THE SECOND LARGEST EVER 1-DAY WARM-UP IN ANY MONTH IN
ROCKFORD.

$$

RC

 


 

Incredible 24-Hour Warm-Up

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
802 PM CDT TUE MAY 14 2013 /902 PM EDT TUE MAY 14 2013/

...INCREDIBLE ONE DAY WARM-UP IN ROCKFORD AND CHICAGO (UPDATED)...

THE HIGH TEMPERATURE IN ROCKFORD REACHED 92 DEGREES TODAY...TYING
THE RECORD HIGH FOR THE DATE SET IN 2007. THE HIGH TEMPERATURE IN
CHICAGO WAS 91 DEGREES. THIS IS AFTER THE MORNING LOW TEMPERATURE
YESTERDAY...MAY 12 2013...WAS 33 DEGREES IN ROCKFORD AND 36
DEGREES IN CHICAGO.

THE 59 DEGREE 1-DAY WARM-UP IN ROCKFORD AND THE 55 DEGREE 1-DAY
WARM-UP IN CHICAGO ARE THE LARGEST EVER IN MAY AT BOTH LOCATIONS.
IN ADDITION...THIS IS TIED FOR THE 2ND LARGEST 1-DAY WARM-UP IN
ANY MONTH IN ROCKFORD...AND TIED FOR 7TH LARGEST 1-DAY WARM-UP IN
ANY MONTH IN CHICAGO.

HERE ARE THE ALL TIME LARGEST ONE DAY WARM UPS...

                  CHICAGO
   DIFF    LOW     DATE         HIGH     DATE
1)  58      0    02/13/1887      58    02/14/1887
    58      15   03/11/1972      73    03/12/1972
3)  57      24   03/31/2003      81    04/01/2003
4)  56      29   04/09/1977      85    04/10/1977
    56      25   04/23/1986      81    04/24/1986
    56      29   04/13/2003      85    04/14/2003
7)  55      36   05/13/2013      91    05/14/2013
8)  54      12   03/31/1969      66    04/01/1969
    54      28   04/25/1983      82    04/26/1983
    54      36   05/13/2013      90    05/14/2013

                  ROCKFORD
   DIFF    LOW     DATE         HIGH     DATE
1)  63      30   04/09/1930      93    04/10/1930
2)  59     -17   02/22/1936      42    02/23/1936
    59      11   03/17/1976      70    03/18/1976
    59      33   05/13/2013      92    05/14/2013
5)  58      -6   01/29/1926      52    01/30/1926
6)  57     -21   01/21/1924      36    01/22/1924
    57      24   03/31/2003      81    04/01/2003
8)  56      16   11/04/1945      72    11/05/1945
    56      27   04/21/1953      83    04/22/1953
    56      24   04/10/1996      80    04/11/1996
    56      29   04/13/2003      85    04/14/2003


HERE ARE THE TOP FIVE LARGEST ONE DAY WARM UPS DURING THE
MONTH OF MAY...

                  CHICAGO
   DIFF    LOW     DATE         HIGH     DATE
1)  55      36   05/13/2013      91    05/14/2013
2)  50      38   04/30/1992      88    05/01/1992
3)  49      36   05/16/1984      85    05/17/1984
4)  48      43   05/01/1959      91    05/02/1959
    48      41   05/26/1969      89    05/27/1969


                  ROCKFORD
   DIFF    LOW     DATE         HIGH     DATE
1)  59      33   05/13/2013      92    05/14/2013
2)  53      31   05/15/1926      84    05/16/1926
    53      53   05/30/1934     106    05/31/1934
4)  51      32   05/04/1926      83    05/05/1926
    51      35   05/18/1955      86    05/19/1955

$$

RC

 


 

Meteorology

 

"Trajectory Method"

Trajectory

 

 

Weather Data from an Aircraft Tuesday Afternoon

Aircraft Sounding

 

 

May 14th:  4 pm Surface Weather Map

430 pm Weather Map