A Winter Storm Warning for McHenry and Lake County Illinois — initially issued at 5:12 p.m. has been extended until 6:00 a.m. Wednesday. The Winter Storm Warning extension was issued at 8:56 p.m.
UPGRADED HEADLINE FOR FAR NORTHERN CHICAGO AREA TO A WINTER STORM WARNING DUE TO CONTINUED ENHANCED SNOWFALL RATES AT TIMES WITHIN THE SHOWERY ACTIVITY MAKING FOR FURTHER DANGEROUS TRAVEL. CALLS TO DISPATCH AND POLICE IN THAT AREA HAVE SHOWN SIGNIFICANT IMPACTS AND A WARNING IS NEEDED…EVEN IF THE WIDESPREAD HEAVY RATES HAVE BECOME MORE SPORADIC. STILL…THE SPORADIC RATES ARE HEAVY WITH
QUARTER MILE OR LESS VISIBILITIES BEING REPORTED…INDICATING AT
LEAST ONE INCH PER HOUR RATES.— NWS CHICAGO/ROMEOVILLE IL
The Winter Weather Advisory for the rest of Illinois was expired, except for Cook and DuPage counties, where a Winter Weather Advisory was also extended until 6:00 a.m.
MCHENRY-LAKE IL-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN
856 PM CST TUE FEB 26 2013
…WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST
WEDNESDAY…
* TIMING…PERIODS OF LIGHT TO MODERATE SNOW WILL BE POSSIBLE
THROUGH THE NIGHT.
* SNOW ACCUMULATION…6 TO 10 INCHES OF SNOW WILL HAVE FALLEN BY
DAYBREAK.
* IMPACTS…UNTREATED ROADS MAY BE SNOW COVERED AND SLICK. THIS
IS A HEAVY WET SNOW…SOMETIMES REFERRED TO AS HEART ATTACK
SNOW. DUE TO THE WEIGHT OF THE SNOW CAUTION SHOULD BE EXERCISED
TO NOT OVER EXERT ONESELF WHEN SHOVELING.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…
FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.
+++++++
URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
512 PM CST TUE FEB 26 2013
MCHENRY-LAKE IL-
INCLUDING THE CITIES OF…WOODSTOCK…WAUKEGAN
512 PM CST TUE FEB 26 2013
…WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST WEDNESDAY…
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW…WHICH IS IN EFFECT UNTIL 6 AM CST
WEDNESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.
* TIMING…WET SNOW WILL CONTINUE THROUGH THE EVENING AND BE HEAVY
AT TIMES THROUGH EARLY EVENING.
* SNOW ACCUMULATION…6 TO 10 INCHES OF SNOW WILL HAVE FALLEN BY
DAYBREAK.
* WINDS…GUSTING AS HIGH AS 35 MPH.
* MAIN IMPACT…TEMPORARY SNOWFALL RATES IN EXCESS OF ONE INCH PER
HOUR ALONG WITH WIND WHIPPED SNOW RESULTING IN TEMPORARY WHITE
OUT CONDITIONS WITH NEAR ZERO VISIBILITY AT TIMES IN OPEN AREAS.
SNOW WILL SIGNIFICANTLY SLOW TRAVEL AND MAKE IT DANGEROUS AT
TIMES THROUGH THE EARLY EVENING COMMUTE…SO PERSONS PLANNING
TRAVEL SHOULD ANTICIPATE EXTREMELY ELEVATED TRAVEL TIMES.
* OTHER IMPACTS…THIS IS A HEAVY WET SNOW…SOMETIMES REFERRED
TO AS HEART ATTACK SNOW. DUE TO THE WEIGHT OF THE SNOW CAUTION
SHOULD BE EXERCISED TO NOT OVER EXERT ONESELF WHEN SHOVELING.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…
FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW…
SLEET…AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.
A WINTER STORM WARNING FOR SLEET MEANS THAT A WINTER STORM SYSTEM
IS IMPACTING THE AREA WITH SIGNIFICANT AMOUNTS OF SLEET. TRAVEL
IS LIKELY TO BE SEVERELY IMPACTED.
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