Tornado Warning 9, NWS Chicago, IL

000 
WWUS53 KLOT 262159
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
458 PM CDT TUE JUL 26 2005

ILC099-262208-
/O.CAN.KLOT.TO.W.0009.000000T0000Z-050726T2215Z/

...THE TORNADO WARNING FOR LA SALLE COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM TUESDAY
EVENING FOR EAST CENTRAL ILLINOIS AND NORTHWEST INDIANA.

LAT...LON 4112 8876 4094 8874 4088 8842 4112 8841

$$

ILC105-262215-
/O.CON.KLOT.TO.W.0009.000000T0000Z-050726T2215Z/

...A TORNADO WARNING CONTINUES UNTIL 515 PM CDT FOR NORTH CENTRAL
LIVINGSTON COUNTY...

AT 456 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A POSSIBLE TORNADO.  THIS TORNADO WAS LOCATED NEAR 
ODELL...OR ABOUT 9 MILES WEST OF DWIGHT...MOVING EAST AT 35 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
NORTHERN LIVINGSTON COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM TUESDAY
EVENING FOR EAST CENTRAL ILLINOIS AND NORTHWEST INDIANA.

LAT...LON 4112 8876 4094 8874 4088 8842 4112 8841

$$

LABAS

000 
WWUS53 KLOT 262210
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
509 PM CDT TUE JUL 26 2005

ILC105-262219-
/O.CAN.KLOT.TO.W.0009.000000T0000Z-050726T2215Z/

...THE TORNADO WARNING FOR NORTH CENTRAL LIVINGSTON COUNTY IS
CANCELLED...

THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE DECREASED ALTHOUGH 
GUSTY WINDS TO 45 MPH ARE STILL POSSIBLE FROM THE CELLS OVER 
NORTHEAST LIVINGSTON COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT. SEVERE THUNDERSTORMS
MAY STILL REDEVELOP OVER THE WARNED AREA.

LAT...LON 4112 8876 4094 8874 4088 8842 4112 8841

$$

LABAS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
145 PM CDT TUE JUL 26 2005

.PRELIMINARY DISCUSSION...

PATTERN CHANGE UNDERWAY TO BRING COOLER/DRIER AIR INTO AREA. AFTER
TODAY, NO RAIN IN FORECAST SO THE DROUGHT WILL CONTINUE AS RECENT TS
TOO LOCALIZED TO END IT OVER THE AREA. STILL NEED 7-9 INCHES OVER
THE AREA TO REALLY END IT.

MAIN TS ACTIVITY THIS AFTERNOON TO BE FAR SE WITH A MIX OF SHRA/AND
A FEW TSRA REST OF AREA. WATER VAPOR PICS STILL SHOW MAIN ENERGY
BACK IN W IA WITH BROAD AREA SHRA AHEAD OF IT INTO SW WI. THIS WIL
CROSS AREA THIS EVENING/TONIGHT WITH A WIDESPREAD BUT LIGHT PRECIP
EVENT.

SECONDARY TROF MOVES THRU BY MORNING WITH THE REAL COOLER/DRIER AIR.
GFS THE FASTEST TO PUSH THE RH OUT OF AREA BY 12Z WITH NGM/NAM
SLOWER. WILL SPLIT DIFFERENCE AS THE NGM/NAM LOOK A LITTLE TOO SLOW
BASED ON THEIR 700 TROF FORECAST. BUT GFS WAY TOO HIGHS IN ITS QPF
FORECAST FROM 00-06Z OVER NE IL JUST S OF CHI AS MAIN INSTABILITY
WILL BE IN CENTRAL/S IL/IN.

LOOKS LIKE THIS COOLING RELATIVEY SHORT LIVED AS UPPER LEVEL HEAT
HIGH BACK OVER S ROCKIES BY SATURDAY NIGHT SO SOME HEAT RETURNS WITH
TIME BUT FLOW THEN BEGINS TO BUCKLE SO NOTHING LIKE THIS PAST
WEEKEND, JUST BACK TO SEASONAL HIGHS. WITH BROAD WEAK HIGH OVER AREA
LOOKS LIKE SOME LAKE COOLING EACH DAY EXCEPT MAYBE SUNDAY.

AT 1PM QUITE A TEMP CONTRAST ACROSS FORECAST AREA WITH ONLY 70 AT
RFD IN THE CLOUDS/SHRA BUT 90 AT KANKAKEE.
AF

&&

.AVIATION DISCUSSION REAGRDING 18Z TAFS:

GUIDANCE HAS COME INTO FAIRLY DECENT AGREEMENT IN BRINGING LOWER
CIGS/MVFR VIS ACROSS AREA DURING THE COURSE OF THIS AFTN-EVENING.
WATER VAPOR SATLT IMAGERY CURRENTLY SHOWS A MID LVL SHORT WAVE TROF
FROM SWRN IA...TRAILING SWWD ACROSS NWRN MO.  THIS FEATURE HAS A SFC
REFLECTION IN THE FORM A WEAK LOW PRES CENTER E OF MCI.  AS THIS
TRACKS NEWD ALONG A COLD FRONT NOW MOVG THRU THE AREA...PCPN IS FCST
TO INCRS IN COVG.  RAIN IS NOW MOVG INTO RFD AREA...AND SHOULD
DVLP/REACH CHI AREA TERMINALS BY 21Z.  CIGS TO LWR TO LOW END OF
MVFR RANGE THIS EVENING...WITH A BKN-OVC MVFR LYR PERSISTING THRU
TNGT IN ZONE OF SIG LLVL COLD ADVECTION.  MIXING WITHIN MUCH DRIER
AMS ON WED MRNG EXPECTED TO ALLOW CIGS TO SCATTER OUT.

VIS TO LWR TO MVFR IN RAIN THIS EVENING...THEN IMPROVE TO
UNRESTRICTED AGAIN AS PCPN ENDS ARND 03Z.  NO FOG OR LWR VIS
EXPECTED DUE TO LWRG SFC DEW POINTS.

FRONT CURRENTLY RUNS FROM N OF UGN-NR BRL.  THIS REPRESENTS A
WNDSHFT FROM WSWLY TO NLY/NNWLY.  FRONT SHOULD CLR TERMINALS BY LATE
THIS AFTN WITH NLY WINDS ARND 15 KTS RMNG ELEVATED THRU TNGT.

MERZLOCK

&&

.WATCHES/WARNINGS/ADVISORIES...
.IL...NONE.
.IN...NONE.
.LK MI...NONE.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
345 PM CDT TUE JUL 26 2005

ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011-
019-271100-
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DU PAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
345 PM CDT TUE JUL 26 2005

THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE... TONIGHT

THERE IS A SLIGHT RISK OF SEVERE WEATHER SOUTH OF A LINE FROM PIPER
CITY TO WHEATFIELD LATE THIS AFTERNOON. THE MAIN THREATS FROM THESE
STORMS WILL BE DAMAGING WIND GUSTS. ELSEWHERE SHOWERS AND A FEW
THUNDERSTORMS WILL OCCUR UNTIL ABOUT MIDNIGHT.

THERE IS AN INCREASED RISK OF RIP CURRENTS ALONG THE INDIANA
SHORELINE FROM GARY TO MICHIGAN CITY TONIGHT.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS EVENING.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)

LMZ740>745-766-271100-
WINTHROP HARBOR IL TO MICHIGAN CITY IN-
LAKE MICHIGAN-
345 PM CDT TUE JUL 26 2005

THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS
AND INDIANA WATERS OF LAKE MICHIGAN.

.DAY ONE... TONIGHT

SHOWERS AND A FEW THUNDERSTORMS WILL OCCUR ACROSS SOUTHERN
LAKE MICHIGAN UNTIL ABOUT MIDNIGHT.

A SMALL CRAFT ADVISORY IS IN EFFECT TONIGHT FOR THE NEARSHORE
WATERS.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

A SMALL CRAFT ADVISORY WILL BE IN EFFECT FOR THE NEARSHORE WATERS
WEDNESDAY.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)