Alert archive / Indiana / Winter Storm Warnings in 2010

Winter Storm Warning 5, NWS Indianapolis, IN

December 15, 201012 counties in Indiana

NWS Indianapolis, IN issued this winter storm warning at Dec 15, 2010, 10:41 AM EST for 12 counties in Indiana. It took effect at Dec 15, 2010, 7:00 PM EST. It was in force for 18 hr. 10 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 15, 2010, 10:41 AM EST (15:41 UTC)
In effect from
Dec 15, 2010, 7:00 PM EST
Expired
Dec 16, 2010, 1:01 PM EST
In force
18 hr
Issued by
NWS Indianapolis, IN

Counties Bartholomew County, IN, Brown County, IN, Daviess County, IN, Decatur County, IN, Greene County, IN, Jackson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Sullivan County, IN

The radar

The Indianapolis radar (KIND), 82 km from the middle of the area, began a volume at 15:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 15, 11:53 PM ESTSNOW 2Seymour, INONGOING SNOWFALL.
Dec 16, 3:23 AM ESTFREEZING RAIN 0Vincennes, INROADS ARE SLICK DUE TO ICE FROM FREEZING RAIN IN NORTHERN PART OF COUNTY.
Dec 16, 5:15 AM ESTSNOW 4Brownstown, IN
Dec 16, 5:30 AM ESTFREEZING RAIN 0.126 Se Washington, INABOUT AN 1/8 OF AN INCH OF ICE ACCUMULATION. LIGHT GLAZE ON OBJECTS.
Dec 16, 6:00 AM ESTFREEZING RAIN 0.125 Se Vincennes, INABOUT AN 1/8 OF AN INCH OF ICE ACCUMULATION. ROADS ARE SLICK IN THE AREA.
Dec 16, 6:00 AM ESTFREEZING RAIN 0.3Shoals, IN
Dec 16, 6:00 AM ESTSNOW 2.21 Se Bloomington, IN
Dec 16, 6:52 AM ESTFREEZING RAIN 0.4Brownstown, IN
Dec 16, 7:27 AM ESTSNOW 3.5Nashville, IN3 TO 4 INCHES ACROSS THE COUNTY
Dec 16, 8:40 AM ESTFREEZING RAIN 0.27 S Vincennes, INTREES...ROADS...POWER LINES ICY. HAZARDOUS TRAVEL AND WALKING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 3.7 hours before the alert went out and 222 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2010-12-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2010-12-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2247 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
202 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

482 
WWUS43 KIND 151541
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1041 AM EST WED DEC 15 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA TONIGHT AND THURSDAY
MORNING...

.LOW PRESSURE WILL MOVE FROM THE SOUTHERN PLAINS THIS EVENING
INTO THE TENNESSEE VALLEY ON THURSDAY MORNING. MOISTURE WILL BE
PULLED NORTH INTO THE OHIO VALLEY THIS EVENING. WHILE SURFACE
TEMPERATURES REMAIN BELOW FREEZING...WARMER AIR ALOFT WILL
OVERSPREAD SOUTHERN PORTIONS OF CENTRAL INDIANA LATE TONIGHT AND
WILL CAUSE A WINTRY MIX OF PRECIPITATION. FURTHER NORTH ACROSS
THE REMAINDER OF THE REGION...PRECIPITATION WILL FALL MAINLY AS
SNOW.

INZ060>065-067>072-152345-
/O.UPG.KIND.WW.Y.0009.101216T0000Z-101216T1800Z/
/O.NEW.KIND.WS.W.0005.101216T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-DECATUR-KNOX-DAVIESS-
MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...BLOOMINGTON...COLUMBUS...VINCENNES...
BEDFORD...SEYMOUR
1041 AM EST WED DEC 15 2010

...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST THURSDAY. THE WINTER WEATHER ADVISORY IS NO
LONGER IN EFFECT.

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW TONIGHT.
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. THE
  THURSDAY MORNING RUSH HOUR WILL BE IMPACTED.

* ACCUMULATIONS: FIVE TO EIGHT INCHES OF SNOW IS EXPECTED BY THURSDAY
  MORNING. SNOW MAY BRIEFLY MIX WITH SLEET AND FREEZING RAIN.

* TIMING: SNOW WILL START LATE THIS EVENING...THEN BECOME HEAVY
  OVERNIGHT. SNOW WILL END THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ028>030-035>037-039-043>048-051>057-152345-
/O.CON.KIND.WW.Y.0009.101216T0000Z-101216T1800Z/
WARREN-TIPPECANOE-CLINTON-FOUNTAIN-MONTGOMERY-BOONE-HAMILTON-
VERMILLION-PARKE-PUTNAM-HENDRICKS-MARION-HANCOCK-VIGO-CLAY-OWEN-
MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...LAFAYETTE...FRANKFORT...
CRAWFORDSVILLE...INDIANAPOLIS...TERRE HAUTE...SHELBYVILLE
1041 AM EST WED DEC 15 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST THURSDAY. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW TONIGHT. 
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 
  THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: THREE TO FIVE INCHES OF SNOW IS EXPECTED FROM
  INDIANAPOLIS SOUTH BY THURSDAY MORNING. FARTHER NORTH THERE
  WILL BE ONE TO THREE INCHES.

* TIMING: SNOW WILL DEVELOP LATE THIS EVENING...BECOMING HEAVIER
  OVERNIGHT. SNOW WILL END THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

JK
6 follow-up statements
999
WWUS43 KIND 152001
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
301 PM EST WED DEC 15 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA TONIGHT AND THURSDAY
MORNING...

.LOW PRESSURE WILL MOVE FROM THE SOUTHERN PLAINS THIS EVENING
INTO THE TENNESSEE VALLEY ON THURSDAY MORNING. MOISTURE WILL BE
PULLED NORTH INTO THE OHIO VALLEY THIS EVENING. WHILE SURFACE
TEMPERATURES REMAIN BELOW FREEZING...WARMER AIR ALOFT WILL
OVERSPREAD SOUTHERN PORTIONS OF CENTRAL INDIANA LATE TONIGHT AND
WILL CAUSE A WINTRY MIX OF PRECIPITATION. FURTHER NORTH ACROSS
THE REMAINDER OF THE REGION...PRECIPITATION WILL FALL MAINLY AS
SNOW.

INZ028>030-039-152115-
/O.CAN.KIND.WW.Y.0009.101216T0000Z-101216T1800Z/
WARREN-TIPPECANOE-CLINTON-HAMILTON-
INCLUDING THE CITIES OF...LAFAYETTE...FRANKFORT
301 PM EST WED DEC 15 2010

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SOME SNOW WILL OCCUR TONIGHT...BUT AMOUNTS WILL BE LESS THAN TWO INCHES.

$$

INZ060>065-067>072-160415-
/O.CON.KIND.WS.W.0005.101216T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-DECATUR-KNOX-DAVIESS-
MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...BLOOMINGTON...COLUMBUS...VINCENNES...
BEDFORD...SEYMOUR
301 PM EST WED DEC 15 2010

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST THURSDAY. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW TONIGHT. 
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 
  THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: FIVE TO SEVEN INCHES OF SNOW IS EXPECTED BY
  THURSDAY MORNING. SNOW MAY MIX WITH SLEET AND FREEZING RAIN.

* TIMING: SNOW WILL START LATE THIS EVENING...THEN BECOME HEAVY 
  OVERNIGHT. SNOW WILL END THURSDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ035>037-043>048-051>057-160415-
/O.CON.KIND.WW.Y.0009.101216T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
301 PM EST WED DEC 15 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM EST THURSDAY. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW TONIGHT. 
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 
  THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: THREE TO FIVE INCHES OF SNOW IS EXPECTED FROM 
  INDIANAPOLIS SOUTH BY THURSDAY MORNING. FARTHER NORTH THERE 
  WILL BE ONE TO THREE INCHES. 

* TIMING: SNOW WILL DEVELOP LATE THIS EVENING...BECOMING HEAVIER 
  OVERNIGHT. SNOW WILL END THURSDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

JK

WWWW
999
WWUS43 KIND 160237
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
937 PM EST WED DEC 15 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA TONIGHT AND THURSDAY
MORNING...

.LOW PRESSURE WILL MOVE FROM THE SOUTHERN PLAINS THIS EVENING
INTO THE TENNESSEE VALLEY ON THURSDAY MORNING. MOISTURE WILL BE
PULLED NORTH INTO THE OHIO VALLEY THIS EVENING. WHILE SURFACE
TEMPERATURES REMAIN BELOW FREEZING...WARMER AIR ALOFT WILL
OVERSPREAD SOUTHERN PORTIONS OF CENTRAL INDIANA LATE TONIGHT AND
WILL CAUSE A WINTRY MIX OF PRECIPITATION. FURTHER NORTH ACROSS
THE REMAINDER OF THE REGION...PRECIPITATION WILL FALL MAINLY AS
SNOW.

INZ060>065-067>072-161100-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-DECATUR-KNOX-DAVIESS-
MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...BLOOMINGTON...COLUMBUS...VINCENNES...
BEDFORD...SEYMOUR
937 PM EST WED DEC 15 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THURSDAY.

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW TONIGHT. 
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 
  THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: FIVE TO SEVEN INCHES OF SNOW IS EXPECTED BY 
  THURSDAY MORNING. SNOW MAY MIX WITH SLEET AND FREEZING RAIN. 

* TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE THROUGHOUT
  THE LATE EVENING HOURS...THEN BECOME HEAVY AFTER MIDNIGHT. SNOW
  WILL END THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ035>037-043>048-051>057-161100-
/O.CON.KIND.WW.Y.0009.000000T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
937 PM EST WED DEC 15 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW TONIGHT. 
  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 
  THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: THREE TO FIVE INCHES OF SNOW IS EXPECTED FROM 
  INDIANAPOLIS SOUTH BY THURSDAY MORNING. FARTHER NORTH THERE 
  WILL BE ONE TO THREE INCHES. 

* TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE THROUGHOUT
  THE LATE EVENING HOURS...BECOMING HEAVIER AFTER MIDNIGHT. SNOW
  WILL END THURSDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$



WWWW
999
WWUS43 KIND 160533
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1233 AM EST THU DEC 16 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA THROUGH MIDDAY...

.LOW PRESSURE WILL MOVE INTO THE TENNESSEE VALLEY THIS MORNING.
SURFACE TEMPERATURES WILL REMAIN BELOW FREEZING AS WARMER AIR
ALOFT OVERSPREADS SOUTHERN PORTIONS OF CENTRAL INDIANA EARLY THIS
MORNING...CAUSING A WINTRY MIX OF PRECIPITATION. FURTHER NORTH
ACROSS THE REMAINDER OF THE REGION...PRECIPITATION WILL FALL
MAINLY AS SNOW.

INZ060>065-067>072-161345-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-DECATUR-KNOX-DAVIESS-
MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...BLOOMINGTON...COLUMBUS...VINCENNES...
BEDFORD...SEYMOUR
1233 AM EST THU DEC 16 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON FOR A MIXTURE OF SNOW...SLEET AND FREEZING RAIN. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW AND SLICK DUE TO
  ICE ACCUMULATION. VISIBILITIES MAY BE REDUCED AND TRAVEL MAY
  BECOME DIFFICULT. THE MORNING RUSH HOUR WILL BE IMPACTED.

* ACCUMULATIONS: THREE TO SIX INCHES OF SNOW IS EXPECTED BY MIDDAY
  WITH ICE ACCUMULATIONS UP TO A QUARTER INCH. 

* TIMING: A MIXTURE OF SNOW...SLEET AND FREEZING RAIN WILL
  CONTINUE THROUGH DAYBREAK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ035>037-043>048-051>057-161345-
/O.CON.KIND.WW.Y.0009.000000T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
1233 AM EST THU DEC 16 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW EARLY THIS
  MORNING.  VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME
  DIFFICULT. THE THURSDAY MORNING RUSH HOUR WILL BE IMPACTED.

* ACCUMULATIONS: THREE TO FIVE INCHES OF SNOW IS EXPECTED FROM 
  INDIANAPOLIS SOUTH BY THURSDAY MORNING. FARTHER NORTH THERE 
  WILL BE TWO TO THREE INCHES. 

* TIMING: SNOW WILL INCREASE IN INTENSITY AND COVERAGE 
  THROUGHOUT THE LATE EVENING HOURS...BECOMING HEAVIER AFTER 
  MIDNIGHT. SNOW WILL END THURSDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

RYAN
520 
WWUS43 KIND 160917
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
417 AM EST THU DEC 16 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA THROUGH MIDDAY...

.LOW PRESSURE WILL MOVE INTO THE TENNESSEE VALLEY THIS MORNING.
SURFACE TEMPERATURES WILL REMAIN BELOW FREEZING AS WARMER AIR
ALOFT CONTINUES ACROSS SOUTHERN PORTIONS OF CENTRAL INDIANA EARLY
THIS MORNING...CAUSING A WINTRY MIX OF PRECIPITATION. FURTHER
NORTH ACROSS THE REMAINDER OF THE REGION...PRECIPITATION WILL FALL
MAINLY AS SNOW.

INZ064-065-071-072-161730-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
BARTHOLOMEW-DECATUR-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...COLUMBUS...SEYMOUR
417 AM EST THU DEC 16 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW AND SLICK DUE 
  TO ICE ACCUMULATION. VISIBILITIES MAY BE REDUCED AND TRAVEL 
  MAY BECOME DIFFICULT. THE MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: THREE TO FOUR INCHES OF SNOW IS EXPECTED BY
  MIDDAY WITH ISOLATED HIGHER AMOUNTS. ICE ACCUMULATIONS UP TO A
  QUARTER INCH ARE POSSIBLE.

* TIMING: A MIXTURE OF SNOW...SLEET AND FREEZING RAIN WILL
  CONTINUE INTO THE MORNING BEFORE CHANGING TO ALL SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ060>063-067>070-161730-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-KNOX-DAVIESS-MARTIN-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...VINCENNES...BEDFORD
417 AM EST THU DEC 16 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW AND SLICK DUE 
  TO ICE ACCUMULATION. VISIBILITIES MAY BE REDUCED AND TRAVEL 
  MAY BECOME DIFFICULT. THE MORNING RUSH HOUR WILL BE IMPACTED. 

* ACCUMULATIONS: ONE TO THREE INCHES OF SNOW IS EXPECTED BY MIDDAY
  WITH ISOLATED HIGHER AMOUNTS. ICE ACCUMULATIONS UP TO A QUARTER
  INCH ARE POSSIBLE.

* TIMING: A MIXTURE OF SNOW...SLEET AND FREEZING RAIN WILL
  CONTINUE THROUGH THE MORNING BEFORE CHANGING TO SNOW THIS
  AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ035>037-043>048-051>057-161730-
/O.CON.KIND.WW.Y.0009.000000T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
417 AM EST THU DEC 16 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW EARLY THIS
  MORNING. VISIBILITIES MAY BE REDUCED AND TRAVEL MAY BECOME
  DIFFICULT. THE MORNING RUSH HOUR WILL BE IMPACTED.

* ACCUMULATIONS: TWO TO FOUR INCHES OF SNOW ARE EXPECTED...WITH
  ISOLATED HIGHER AMOUNTS POSSIBLE SOUTH OF INDIANAPOLIS.

* TIMING: SNOW WILL CONTINUE THROUGH MID MORNING THEN TAPER OFF
  INTO THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

50/RYAN
196 
WWUS43 KIND 161529
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1029 AM EST THU DEC 16 2010

...WINTER STORM TO IMPACT CENTRAL INDIANA THROUGH MIDDAY...

.LOW PRESSURE WILL MOVE INTO THE TENNESSEE VALLEY LATER TODAY. SURFACE
TEMPERATURES WILL REMAIN BELOW FREEZING AS WARMER AIR ALOFT
CONTINUES ACROSS SOUTHERN PORTIONS OF CENTRAL INDIANA...POSSIBLY CAUSING
A WINTRY MIX OF PRECIPITATION. FURTHER NORTH ACROSS THE REMAINDER
OF THE REGION...PRECIPITATION WILL FALL MAINLY AS SNOW.

INZ064-065-071-072-161800-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
BARTHOLOMEW-DECATUR-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...COLUMBUS...SEYMOUR
1029 AM EST THU DEC 16 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW AND BE SLICK DUE
  TO ICE ACCUMULATION. VISIBILITIES MAY BE REDUCED AND TRAVEL MAY
  BECOME DIFFICULT. 

* ACCUMULATIONS: THREE TO FOUR INCHES OF SNOW IS EXPECTED BY  
  MIDDAY WITH ISOLATED HIGHER AMOUNTS. ICE ACCUMULATIONS UP TO A  
  QUARTER INCH ARE POSSIBLE.

* TIMING: A MIXTURE OF SNOW AND LIGHT SLEET WILL CONTINUE BEFORE
  CHANGING TO ALL SNOW EARLY THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ060>063-067>070-161800-
/O.CON.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-KNOX-DAVIESS-MARTIN-LAWRENCE-
INCLUDING THE CITIES OF...BLOOMINGTON...VINCENNES...BEDFORD
1029 AM EST THU DEC 16 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME COVERED WITH SNOW AND BE SLICK DUE
  TO ICE ACCUMULATION. VISIBILITIES MAY BE REDUCED AND TRAVEL MAY
  BECOME DIFFICULT. 

* ACCUMULATIONS: ONE TO THREE INCHES OF SNOW IS EXPECTED BY MIDDAY WITH
  ISOLATED HIGHER AMOUNTS. ICE ACCUMULATIONS UP TO A QUARTER INCH
  ARE POSSIBLE.

* TIMING: A MIXTURE OF SNOW AND LIGHT SLEET WILL CONTINUE BEFORE
  CHANGING TO SNOW THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED. EITHER POSTPONE TRAVEL OR BE READY
FOR GREATLY EXTENDED TRAVEL TIMES.

&&

$$

INZ035>037-043>048-051>057-161800-
/O.CON.KIND.WW.Y.0009.000000T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
1029 AM EST THU DEC 16 2010

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON. 

* MAIN IMPACT: ROADS MAY BECOME SLIPPERY DUE TO SNOW. VISIBILITIES
  MAY BE REDUCED AND TRAVEL MAY BECOME DIFFICULT. 

* ACCUMULATIONS: TWO TO FOUR INCHES OF SNOW ARE EXPECTED...WITH  
  ISOLATED HIGHER AMOUNTS POSSIBLE SOUTH OF INDIANAPOLIS.

* TIMING: SNOW WILL CONTINUE THEN TAPER OFF INTO THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

SMF
130 
WWUS43 KIND 161801
WSWIND

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
101 PM EST THU DEC 16 2010

...WINTER STORM WARNING AND WINTER WEATHER ADVISORY ALLOWED TO EXPIRE...

.THE LOW PRESSURE SYSTEM THAT CAUSED SNOW AND SLEET ACROSS CENTRAL
INDIANA HAS EXITED THE AREA AND ACCUMULATING PRECIPITATION HAS
COME TO AN END. THUS THE ADVISORIES AND WARNINGS WILL BE ALLOWED
TO EXPIRE.

INZ060>065-067>072-161915-
/O.CAN.KIND.WS.W.0005.000000T0000Z-101216T1800Z/
SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-DECATUR-KNOX-DAVIESS-
MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...BLOOMINGTON...COLUMBUS...VINCENNES...
BEDFORD...SEYMOUR
101 PM EST THU DEC 16 2010

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS CANCELLED THE
WINTER STORM WARNING. 


$$

INZ035>037-043>048-051>057-161915-
/O.CAN.KIND.WW.Y.0009.000000T0000Z-101216T1800Z/
FOUNTAIN-MONTGOMERY-BOONE-VERMILLION-PARKE-PUTNAM-HENDRICKS-
MARION-HANCOCK-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SHELBY-RUSH-
INCLUDING THE CITIES OF...CRAWFORDSVILLE...INDIANAPOLIS...
TERRE HAUTE...SHELBYVILLE
101 PM EST THU DEC 16 2010

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 


$$

JP

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this winter storm warning went out at Dec 15, 5:45 AM EST, 4 hours 56 minutes earlier.

Area forecast discussion, Dec 15, 5:45 AM EST, 4 hours 56 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
545 AM EST WED DEC 15 2010

.UPDATE...
THE AVIATION SECTION HAS BEEN UPDATED BELOW.

&&

.SYNOPSIS...

HIGH PRESSURE WILL SHIFT EAST TODAY WITH CLOUDS INCREASING ACROSS
THE REGION. LOW PRESSURE WILL PULL OUT OF THE SOUTHERN PLAINS LATER
TODAY AND BE LOCATED OVER THE TENNESSEE VALLEY ON THURSDAY MORNING.
TRACK OF THIS SYSTEM WILL BE CLOSE ENOUGH TO CENTRAL INDIANA FOR A
WINTRY MIX OF PRECIPITATION BEGINNING LATE THIS AFTERNOON INTO
THURSDAY. HIGH PRESSURE WILL RETURN BEGINNING FRIDAY AND CONTINUING
INTO EARLY NEXT WEEK WITH COLD WEATHER. WEAK MID LEVEL DISTURBANCES
PASSING TO THE NORTH OF THE REGION MAY BRING A PERIOD OF CLOUDS AND
FLURRIES SUNDAY NIGHT AND MONDAY.

&&

.NEAR TERM /TODAY/...

CLOUDS HAVING EXPANDING EAST SLOWLY EARLY THIS MORNING AS HIGH
PRESSURE REMAINS DRAPED ACROSS CENTRAL INDIANA. WITH THE CLEAR
SKIES...LIGHT WINDS AND SNOWPACK...TEMPERATURES HAVE PLUMMETED INTO
THE SINGLE DIGITS ACROSS MUCH OF THE REGION WITH SEVERAL LOCATIONS
FLIRTING WITH ZERO.

FORECAST FOCUSES ON EXPANSION OF CLOUDS THROUGH THE DAY AS MOISTURE
INCREASES AHEAD OF LOW PRESSURE EJECTING INTO THE SOUTHERN PLAINS.
MOST SHORT RANGE MODEL GUIDANCE VERY SIMILAR ON THE MAIN FEATURES
AND HAVE TAKEN A BLEND.

HIGH PRESSURE WILL SHIFT EAST TODAY WITH A PREDOMINANT SOUTHEASTERLY
FLOW ESTABLISHING ACROSS THE FORECAST AREA. LEADING EDGE OF CLOUDS
INTO SOUTHWEST INDIANA WILL STEADILY INCREASE ACROSS THE REGION AS
THE DAY PROGRESSES AS WARM ADVECTION GETS GOING. INITIAL AXIS OF
WEAK ISENTROPIC LIFT LIFTS NORTHEAST ACROSS THE FORECAST AREA DURING
THE AFTERNOON AND SHOULD SERVE TO THICKEN THE CLOUDS AND BEGIN TO
MOISTEN THE BOUNDARY LAYER. MAIN SURGE OF LIFT HOWEVER WILL REMAIN
SOUTHWEST OF THE FORECAST AREA THROUGH SUNSET. OTHER THAN FLURRIES
AND A FEW AREAS OF VERY LIGHT SNOW OVER FAR WESTERN COUNTIES AFTER
21Z...SHOULD REMAIN DRY ACROSS THE REGION INTO THE EARLY EVENING.

TEMPS...LOW LEVEL THERMAL PROFILES SUPPORT GOING NEAR OR JUST SHY OF
THE COOLER MAVMOS GUIDANCE. HIGHS SHOULD RANGE FROM THE LOWER 20S
OVER THE NORTHEAST TO THE UPPER 20S ACROSS SOUTHWEST COUNTIES.

&&

.SHORT TERM /TONIGHT THROUGH FRIDAY NIGHT/...

FORECAST CHALLENGES FOCUS ON PASSAGE OF LOW PRESSURE TO THE
SOUTHWEST OF THE REGION OVERNIGHT AND IMPACTS TO THE REGION WITH
RESPECT TO PRECIP TYPE/DURATION/AMOUNTS. OP GFS A BIT FASTER AND
MORE AMPLIFIED WITH UPPER TROUGH ASSOCIATED WITH THIS SYSTEM WHEN
COMPARED TO OTHER MODELS. TAKING INTO ACCOUNT THE STRENGTH OF THE
POLAR VORTEX OVER NORTHERN NEW ENGLAND...PREFER THE SLIGHTLY SLOWER
IDEA SUGGESTED BY THE ECMWF AND TO A LESSER EXTENT THE NAM AND SREF.

PRECIPITATION SHOULD QUICKLY BECOME WIDESPREAD ACROSS MOST OF THE
FORECAST AREA DURING THE EVENING. ISENTROPIC LIFT WILL DEEPEN AND
BECOME WELL ESTABLISHED WITH AN AXIS OF MID LEVEL FRONTOGENETICAL
FORCING AND DEFORMATION ADDING ITS WEIGHT. ABOVE FREEZING AIR WITHIN
THE UPPER PORTIONS OF THE BOUNDARY LAYER WILL INFILTRATE THE REGION
FROM THE SOUTHWEST DURING THE EVENING AND INTO THE OVERNIGHT. THIS
WILL SET THE STAGE FOR SNOW TO TRANSITION TO A WINTRY MIX FIRST OVER
FAR SOUTHWEST COUNTIES...EXPANDING ACROSS THE SOUTHERN THIRD OF THE
FORECAST AREA OVERNIGHT. MODEL SOUNDINGS INDICATE MOST AMOUNT OF
WARM AIR ALOFT LIKELY TO MAKE IT INTO DAVIESS...KNOX AND MARTIN
COUNTIES WHERE PRECIPITATION MAY BECOME PREDOMINANTLY IN THE FORM OF
FREEZING RAIN AFTER MIDNIGHT WITH A THIN RIBBON OF FREEZING
RAIN/SLEET MIX TO THE NORTH FROM SOUTH OF TERRE HAUTE TO SEYMOUR.
ICING CONCERNS ABOUND IN THESE AREAS WHERE 0.10 TO 0.20 INCHES OF
FREEZING RAIN WILL BE POSSIBLE.

FURTHER TO THE NORTH...COLDER AIR MORE FIRMLY ENTRENCHED. EXPECT AN
AXIS OF SNOW/SLEET MIX OVERNIGHT FROM TERRE HAUTE THROUGH
BLOOMINGTON AND COLUMBUS. NORTH OF THIS LINE...SNOW WILL BE THE
PREDOMINANT PRECIP TYPE. AXIS OF HEAVIEST SNOW WILL FALL UNDERNEATH
THE MID LEVEL FRONTOGENETICAL FORCING AXIS WHICH LOOKS TO SET UP
ALONG AND JUST NORTH OF THE I-74 CORRIDOR INCLUDING THE INDY METRO.
SREF ALSO SHOWS A NICE AXIS OF DEEPER DENDRITIC GROWTH AND STRONG
VERTICAL VELOCITIES  COINCIDENT WITH THE FRONTOGENETICAL FORCING.
TAKING AN EXPECTED 15 TO 1 SNOW RATIO...WIDESPREAD 2 TO 3 INCHES
LOOK PLAUSIBLE WITHIN THIS AREA OF DEEPER LIFT AND THINK A FEW AREAS
CLOSER TO 4 INCHES TOTAL BY THURSDAY MORNING NOT OUT OF THE
QUESTION. FURTHER NORTH AND EAST FROM THE DEEPER FORCING SNOWFALL
AMOUNTS WILL BE A TOUCH LOWER...LIKELY MAXING OUT IN THE 1 TO 2 INCH
RANGE. CONSIDERING EXPECTED SNOWFALL AMOUNTS BY THURSDAY MORNING AND
POSSIBILITY FOR ICING OVER SOUTHERN COUNTIES...WILL BE ISSUING A
WINTER WEATHER ADVISORY FROM 00Z TONIGHT THROUGH 18Z THURSDAY FOR
ALL AREAS SOUTH/WEST OF A TIPPECANOE-CLINTON-HAMILTON-HANCOCK-RUSH
CO LINE. WILL RUN WITH AN SPS FOR LOWER SNOW TOTALS NORTHEAST OF
THIS LINE.

LIFT QUICKLY DEPARTS THURSDAY MORNING WITH LIGHT PRECIPITATION
PERSISTING THROUGH MIDDAY. WEAK HIGH PRESSURE RIDGE WILL BUILD IN
BEGINNING THURSDAY EVENING AND KEEP DRY CONDITIONS ACROSS CENTRAL
INDIANA THROUGH THE REMAINDER OF THE SHORT TERM. MODEL SOUNDINGS
SHOW PLENTY OF MOISTURE REMAINING TRAPPED WITHIN THE BOUNDARY LAYER
INTO FRIDAY. HAVE HELD ONTO MORE CLOUDS THURSDAY NIGHT AND
FRIDAY...WITH MORE SUBSTANTIAL CLEARING NOT COMING UNTIL FRIDAY
AFTERNOON AND EVENING AS DRIER AIR SPREADS INTO THE REGION.

TEMPS...LOWS WILL BE REACHED THIS EVENING BEFORE TEMPS RECOVER
SLOWLY OVERNIGHT IN RESPONSE TO THE WARM ADVECTION. HELD CLOSE TO
MOS WHICH LOOKED REASONABLE. WITH THE CLOUDS AND PRECIP IN THE
MORNING...AND COLD ADVECTION DEVELOPING DURING THE AFTERNOON...
PREFER THE COLDER MAVMOS GUIDANCE FOR HIGHS THURSDAY. SPLIT THE
DIFFERENCE BETWEEN THE COLDER MAV AND WARMER MET GUIDANCE THURSDAY
NIGHT WITH PLENTY OF CLOUD COVER REMAINING. HELD TEMPS FRIDAY CLOSER
TO THE COLDER MAVMOS WITH THOSE CLOUDS LIKELY TAKING A GOOD CHUNK OF
THE DAY TO DEPART.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...

MODELS MOVE AN UPPER DISTURBANCE ACROSS THE GREAT LAKES OVER THE
WEEKEND. AT TIME MOST MODELS KEEP PRECIPITATION FROM THIS JUST
NORTH OF OUR AREA AS HIGH PRESSURE OVER THE PLAINS BUILDS EAST
TOWARDS THE OHIO VALLEY.

THE GFS AND EUROPEAN MODELS TAKE A STRONG SURFACE LOW FROM THE
NORTHERN GULF TO THE CAROLINA COAST AND OFF THE EAST COAST SUNDAY.
PRESENTLY IT LOOKS LIKE PRECIPITATION FROM THIS WILL STAY TO OUR
SOUTH AND SOUTHEAST AS A WEAK RIDGE OF HIGH PRESSURE WILL BE
ACROSS OUR AREA.

AT TIME...THE BEST CHANCES FOR US TO SEE PRECIPITATION WILL BE
AROUND MONDAY AS GFS...GEM AND EUROPEAN INDICATE A POSSIBLE CLIPPER
MOVING OUR WAY. GEM AND GFS ARE A LITTLE SLOWER...BUT ALL MODELS
MOVE THIS ON TO THE EAST BY DAY 7.  HPC TEMPERATURES SEEM REASONABLE
BUT WENT JUST A TAD WARMER OVER THE WEEKEND PER GFS AND GEM. ONLY
OTHER ADJUSTMENTS WERE TO BACK OFF ON SKY COVER A LITTLE FRIDAY AND
OVER THE WEEKEND AS CURRENT MODELS ARE TRENDING DRIER AND A WEAK
SURFACE RIDGE OF HIGH PRESSURE WILL BE ACROSS OUR REGION.

&&

.AVIATION /151200Z TAF ISSUANCE/...

VFR CONDITIONS EXPECTED THROUGH THE PERIOD AS HIGH PRESSURE EXITS
THE AREA. VFR CLOUD DECK AROUND BKN060 WILL CONTINUE TO SPREAD EAST
DURING THE MORNING AND PERSIST THROUGH MUCH OF THE DAY.

AFTER 00Z CONDITIONS WILL BEGIN TO DETERIORATE FROM SOUTHWEST TO
NORTHEAST ACROSS THE TAF SITES...WITH ALL SITES IFR IN SNOW BY 04Z.
WARM AIR ALOFT WILL ALLOW SLEET TO MIX IN AT KHUF AND KBMG BY 05Z.
DON/T THINK THAT FZRA WILL MAKE IT TO THOSE SITES...BUT WILL HAVE TO
WATCH CLOSELY. SLEET ALSO HAS A SMALL CHANCE OF MAKING IT TO KIND
FOR A PERIOD AS WELL.

FOR THE 30 HOUR KIND TAF...EXPECT SOME IMPROVEMENTS IN VISIBILITY
AFTER 15Z OR SO.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY FROM 7 PM THIS EVENING TO 1 PM EST
THURSDAY FOR INZ028>030-035>037-039-043>048-051>057-060>065-
067>072.

&&

SYNOPSIS...RYAN
NEAR TERM...RYAN
SHORT TERM...RYAN
LONG TERM....JH
AVIATION...50
Hazardous weather outlook, Dec 15, 4:44 AM EST, 5 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
444 AM EST WED DEC 15 2010

INZ028>030-035>037-039-043>048-051>057-062>065-161000-
WARREN-TIPPECANOE-CLINTON-FOUNTAIN-MONTGOMERY-BOONE-HAMILTON-
VERMILLION-PARKE-PUTNAM-HENDRICKS-MARION-HANCOCK-VIGO-CLAY-OWEN-
MORGAN-JOHNSON-SHELBY-RUSH-MONROE-BROWN-BARTHOLOMEW-DECATUR-
444 AM EST WED DEC 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

LIGHT SNOW WILL DEVELOP BY LATE AFTERNOON...EXPANDING ACROSS THE
ENTIRE REGION THIS EVENING AND BECOMING HEAVIER. TWO TO THREE INCHES
OF ACCUMULATION ARE EXPECTED ACROSS THE REGION BY THURSDAY
MORNING...WITH A FEW SPOTS POSSIBLY APPROACHING FOUR INCHES. ALONG
AND SOUTH OF A TERRE HAUTE TO BLOOMINGTON TO COLUMBUS LINE...SLEET
AND FREEZING RAIN MAY MIX IN WITH THE SNOW OVERNIGHT...WITH THE
POTENTIAL FOR A LIGHT GLAZING OF ICE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

PRECIPITATION MAINLY IN THE FORM OF LIGHT SNOW WILL DIMINISH BY
MIDDAY THURSDAY. LITTLE TO NO ADDITIONAL ACCUMULATION IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO PROVIDE SNOW AND ICE REPORTS TONIGHT
AND THURSDAY MORNING.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

INZ060-061-067>072-161000-
SULLIVAN-GREENE-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
444 AM EST WED DEC 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

LIGHT SNOW WILL DEVELOP BY LATE AFTERNOON...EXPANDING ACROSS THE
ENTIRE REGION THIS EVENING AND BECOMING HEAVIER. THE SNOW WILL
TRANSITION TO A MIXTURE OF SLEET AND FREEZING RAIN OVERNIGHT AND
EARLY THURSDAY MORNING. SNOW ACCUMULATIONS AROUND AN INCH ARE
POSSIBLE...WITH UP TO A TENTH OF AN INCH OF ICE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

A WINTRY MIX OF PRECIPITATION WILL DIMINISH BY MIDDAY THURSDAY.
LITTLE TO NO ADDITIONAL SNOW OR ICE ACCUMULATION IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO PROVIDE SNOW AND ICE REPORTS TONIGHT
AND THURSDAY MORNING.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

INZ021-031-038-040>042-049-161000-
CARROLL-HOWARD-TIPTON-MADISON-DELAWARE-RANDOLPH-HENRY-
444 AM EST WED DEC 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

LIGHT SNOW WILL DEVELOP EARLY THIS EVENING AND CONTINUE OVERNIGHT.
ONE TO TWO INCHES OF ACCUMULATION ARE EXPECTED ACROSS THE REGION BY
THURSDAY MORNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

LIGHT SNOW WILL DIMINISH BY MIDDAY THURSDAY. LITTLE TO NO
ADDITIONAL ACCUMULATION IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO PROVIDE SNOW REPORTS TONIGHT AND
THURSDAY MORNING.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

RYAN

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 15, 4:08 AM ESTWinter Weather AdvisoryINDBartholomew, Boone, Brown, Clay, Clinton, Daviess and 26 more33 hr

Nearby

Winter Storm Warnings in Indiana, 2010Every winter storm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.