Alert archive / Indiana / Winter Storm Watches in 2012

Winter Storm Watch 4, NWS Northern Indiana

December 24, 20128 counties in Ohio; 17 counties in Indiana; Branch County, Hillsdale County, Michigan

NWS Northern Indiana issued this winter storm watch at Dec 24, 2012, 4:26 AM EST for 8 counties in Ohio; 17 counties in Indiana; Branch County, Hillsdale County, Michigan. It took effect at Dec 26, 2012, 4:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 24, 2012, 4:26 AM EST (09:26 UTC)
In effect from
Dec 26, 2012, 4:00 AM EST
Expired
Dec 25, 2012, 12:08 PM EST
In force
Issued by
NWS Northern Indiana
All 27 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Cass County, IN, DeKalb County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, LaGrange County, IN, Miami County, IN, Noble County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Branch County, MI, Hillsdale County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 55 km from the middle of the area, began a volume at 09:31 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.4 hours before the alert went out and 217 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, Cncnati-Daytn, OH at 00:00Z on 2012-12-24Temperature 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, Cncnati-Daytn, OH at 00:00Z on 2012-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 square meters per square second.1939587897Sfc1 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
1281 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
170 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.

678 
WWUS43 KIWX 240926
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
426 AM EST MON DEC 24 2012

...WINTER STORM LATE TUESDAY NIGHT AND WEDNESDAY...

.A STORM SYSTEM WILL TRACK ACROSS THE SOUTHERN PLAINS TUESDAY
AFTERNOON AND WILL INTENSIFY AS IT MOVES NORTHEAST INTO THE OHIO
RIVER VALLEY WEDNESDAY. SNOW IS EXPECTED TO EXPAND NORTHWARD
ACROSS NORTHERN INDIANA AND NORTHWEST OHIO LATE TUESDAY
NIGHT...AND THEN OVERSPREAD SOUTH CENTRAL LOWER MICHIGAN EARLY
WEDNESDAY MORNING. THE SNOW IS EXPECTED TO BECOME MODERATE TO
HEAVY AT TIMES ON WEDNESDAY BEFORE DIMINISHING IN INTENSITY TOWARD
WEDNESDAY EVENING. IN ADDITION TO THE SNOW...NORTH WINDS WILL
INCREASE TO 15 TO 25 MPH WITH SOME GUSTS AROUND 35 MPH RESULTING
IN SOME BLOWING AND DRIFTING SNOW.

INZ006>009-015>018-020-022>027-032>034-MIZ080-081-OHZ001-002-004-
005-015-016-024-025-241730-
/O.NEW.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-DE KALB-FULTON IN-KOSCIUSKO-WHITLEY-
ALLEN IN-WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-
BLACKFORD-JAY-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...AUBURN...
GARRETT...ROCHESTER...AKRON...WARSAW...WINONA LAKE...SYRACUSE...
MENTONE...COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...
FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...MONON...
LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...BRYAN...WAUSEON...
ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...HICKSVILLE...
NAPOLEON...DESHLER...LIBERTY CENTER...PAULDING...ANTWERP...
MELROSE...OTTAWA...PANDORA...KALIDA...FORT JENNINGS...VAN WERT...
DELPHOS...OHIO CITY...LIMA...SPENCERVILLE
426 AM EST MON DEC 24 2012

...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
LATE WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT
THROUGH LATE WEDNESDAY NIGHT. 

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA LATE TUESDAY NIGHT INTO EARLY
   WEDNESDAY MORNING...BECOMING MODERATE TO HEAVY AT TIMES ON
   WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE
   POSSIBLE BY LATE WEDNESDAY EVENING WITH LOCALLY HIGHER AMOUNTS
   POSSIBLE. IN ADDITION...NORTH WINDS WILL INCREASE TO 15 TO 25
   MPH EARLY WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH THROUGH
   WEDNESDAY AFTERNOON.

 * THE COMBINATION OF SNOW AND GUSTY NORTH WINDS MAY ALSO RESULT
   IN AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED
   VISIBILITIES AT TIMES.

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
5 follow-up statements
083 
WWUS43 KIWX 241700
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1200 PM EST MON DEC 24 2012

...WINTER STORM TO IMPACT AREA STARTING EARLY WEDNESDAY MORNING...

.A STORM SYSTEM WILL TRACK ACROSS THE SOUTHERN PLAINS TUESDAY
AFTERNOON AND WILL INTENSIFY AS IT MOVES NORTHEAST INTO THE OHIO
RIVER VALLEY WEDNESDAY. SNOW IS EXPECTED TO EXPAND NORTHWARD
ACROSS NORTHERN INDIANA AND NORTHWEST OHIO EARLY WEDNESDAY
MORNING...AND THEN OVERSPREAD SOUTH CENTRAL LOWER MICHIGAN THROUGH
THE LATE MORNING HOURS. THE SNOW IS EXPECTED TO BECOME MODERATE TO
HEAVY AT TIMES ON WEDNESDAY...ESPECIALLY ALONG AND SOUTH OF THE
US-24 CORRIDOR...BEFORE DIMINISHING IN INTENSITY TOWARD WEDNESDAY
EVENING. IN ADDITION TO THE SNOW...NORTH WINDS WILL INCREASE TO 15
TO 25 MPH WITH SOME GUSTS AROUND 35 MPH RESULTING IN SOME BLOWING
AND DRIFTING SNOW.

INZ006>009-015>018-020-022>027-032>034-MIZ080-081-OHZ001-002-004-
005-015-016-024-025-250100-
/O.CON.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-DE KALB-FULTON IN-KOSCIUSKO-WHITLEY-
ALLEN IN-WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-
BLACKFORD-JAY-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...AUBURN...
GARRETT...ROCHESTER...AKRON...WARSAW...WINONA LAKE...SYRACUSE...
MENTONE...COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...
FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...MONON...
LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...BRYAN...WAUSEON...
ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...HICKSVILLE...
NAPOLEON...DESHLER...LIBERTY CENTER...PAULDING...ANTWERP...
MELROSE...OTTAWA...PANDORA...KALIDA...FORT JENNINGS...VAN WERT...
DELPHOS...OHIO CITY...LIMA...SPENCERVILLE
1200 PM EST MON DEC 24 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM EARLY WEDNESDAY
MORNING THROUGH LATE WEDNESDAY NIGHT...

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING VERY
   EARLY WEDNESDAY MORNING...BECOMING MODERATE TO HEAVY AT TIMES
   ON WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE
   POSSIBLE BY LATE WEDNESDAY EVENING WITH LOCALLY HIGHER AMOUNTS
   POSSIBLE. IN ADDITION...NORTH WINDS WILL INCREASE TO 15 TO 25
   MPH EARLY WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH THROUGH
   WEDNESDAY AFTERNOON.

 * THE COMBINATION OF SNOW AND GUSTY NORTH WINDS MAY ALSO RESULT 
   IN AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
610 
WWUS43 KIWX 242234
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
534 PM EST MON DEC 24 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA STARTING EARLY
WEDNESDAY MORNING...

.A STORM SYSTEM WILL TRACK ACROSS THE SOUTHERN PLAINS TUESDAY
AND WILL INTENSIFY AS IT MOVES NORTHEAST INTO THE OHIO RIVER
VALLEY WEDNESDAY. SNOW IS EXPECTED TO EXPAND NORTHWARD ACROSS
NORTHERN INDIANA AND NORTHWEST OHIO EARLY WEDNESDAY MORNING...AND
THEN OVERSPREAD SOUTH CENTRAL LOWER MICHIGAN THROUGH THE LATE
MORNING HOURS. THE SNOW IS EXPECTED TO BE MODERATE TO HEAVY AT
TIMES ON WEDNESDAY...ESPECIALLY ALONG AND SOUTH OF THE US-24
CORRIDOR...BEFORE DIMINISHING IN INTENSITY WEDNESDAY EVENING. IN
ADDITION TO THE SNOW...NORTHEAST TO NORTH WINDS WILL INCREASE TO
15 TO 25 MPH WITH SOME GUSTS AROUND 35 MPH RESULTING IN SOME
BLOWING AND DRIFTING SNOW.

INZ006>009-015>018-020-022>027-032>034-MIZ080-081-OHZ001-002-004-
005-015-016-024-025-250645-
/O.CON.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-DE KALB-FULTON IN-KOSCIUSKO-WHITLEY-
ALLEN IN-WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-
BLACKFORD-JAY-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...AUBURN...
GARRETT...ROCHESTER...AKRON...WARSAW...WINONA LAKE...SYRACUSE...
MENTONE...COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...
FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...MONON...
LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...BRYAN...WAUSEON...
ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...HICKSVILLE...
NAPOLEON...DESHLER...LIBERTY CENTER...PAULDING...ANTWERP...
MELROSE...OTTAWA...PANDORA...KALIDA...FORT JENNINGS...VAN WERT...
DELPHOS...OHIO CITY...LIMA...SPENCERVILLE
534 PM EST MON DEC 24 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT
THROUGH LATE WEDNESDAY NIGHT...

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING VERY
   EARLY WEDNESDAY MORNING... AND BE MODERATE TO HEAVY AT TIMES
   ON WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE
   POSSIBLE BY LATE WEDNESDAY EVENING WITH LOCALLY HIGHER AMOUNTS
   POSSIBLE. IN ADDITION...NORTHEAST TO NORTH WINDS WILL INCREASE
   TO 15 TO 25 MPH EARLY WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH
   THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND GUSTY NORTH WINDS MAY ALSO RESULT 
   IN AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
104 
WWUS43 KIWX 250311
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1011 PM EST MON DEC 24 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA STARTING EARLY
WEDNESDAY MORNING...

.A LOW PRESSURE SYSTEM MOVING INTO THE SOUTHERN PLAINS TONIGHT
IS EXPECTED TO INTENSIFY AND MOVE NORTHEAST INTO THE OHIO RIVER
VALLEY WEDNESDAY. SNOW SHOULD EXPAND NORTHWARD ACROSS NORTHERN
INDIANA AND NORTHWEST OHIO WEDNESDAY MORNING...AND OVERSPREAD
SOUTH CENTRAL LOWER MICHIGAN BY AFTERNOON. THE SNOW IS EXPECTED TO
BE MODERATE TO HEAVY AT TIMES ON WEDNESDAY...ESPECIALLY ALONG AND
SOUTH OF THE US-24 CORRIDOR... BEFORE DIMINISHING IN INTENSITY
WEDNESDAY EVENING. IN ADDITION TO THE SNOW...NORTHEAST TO NORTH
WINDS WILL INCREASE TO 15 TO 25 MPH WITH SOME GUSTS AROUND 35 MPH
RESULTING IN AREAS OF BLOWING AND DRIFTING SNOW.

INZ006>009-015>018-020-022>027-032>034-MIZ080-081-OHZ001-002-004-
005-015-016-024-025-251115-
/O.CON.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-DE KALB-FULTON IN-KOSCIUSKO-WHITLEY-
ALLEN IN-WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-
BLACKFORD-JAY-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...AUBURN...
GARRETT...ROCHESTER...AKRON...WARSAW...WINONA LAKE...SYRACUSE...
MENTONE...COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...
FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...MONON...
LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...BRYAN...WAUSEON...
ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...HICKSVILLE...
NAPOLEON...DESHLER...LIBERTY CENTER...PAULDING...ANTWERP...
MELROSE...OTTAWA...PANDORA...KALIDA...FORT JENNINGS...VAN WERT...
DELPHOS...OHIO CITY...LIMA...SPENCERVILLE
1011 PM EST MON DEC 24 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT
THROUGH LATE WEDNESDAY NIGHT...

HAZARDOUS WEATHER...

 * SNOW IS EXPECTED TO OVERSPREAD THE AREA FROM THE SOUTH
   BEGINNING VERY EARLY WEDNESDAY MORNING... AND BE MODERATE TO
   HEAVY AT TIMES ON WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7
   INCHES ARE POSSIBLE BY LATE WEDNESDAY EVENING WITH LOCALLY
   HIGHER AMOUNTS POSSIBLE. IN ADDITION...NORTHEAST TO NORTH WINDS
   WILL INCREASE TO 15 TO 25 MPH EARLY WEDNESDAY...WITH GUSTS TO
   30 TO 35 MPH THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED
   VISIBILITIES AT TIMES.

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
790 
WWUS43 KIWX 250959
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
459 AM EST TUE DEC 25 2012

...WINTER STORM TO IMPACT THE AREA STARTING LATE TUESDAY NIGHT...

.A STORM SYSTEM MOVING THROUGH TEXAS THIS MORNING WILL INTENSIFY
AS IT MOVES NORTHEAST THROUGH THE TENNESSEE RIVER VALLEY
WEDNESDAY. SNOW WILL EXPAND NORTHWARD THROUGH NORTHERN INDIANA
AND INTO NORTHWEST OHIO LATE TUESDAY NIGHT INTO WEDNESDAY
MORNING...AND OVERSPREAD SOUTH CENTRAL LOWER MICHIGAN BY MID TO
LATE MORNING WEDNESDAY. THE SNOW IS EXPECTED TO BE MODERATE TO
HEAVY AT TIMES ON WEDNESDAY...ESPECIALLY ALONG AND SOUTHEAST OF
THE ROUTE 24 CORRIDOR...BEFORE DIMINISHING IN INTENSITY WEDNESDAY
NIGHT. IN ADDITION TO THE SNOW...NORTHEAST TO NORTH WINDS WILL
INCREASE TO 25 MPH WITH GUSTS BETWEEN 30 AND 35 MPH IN THE
WARNING AREA...RESULTING IN AREAS OF BLOWING AND DRIFTING SNOW AND
REDUCED VISIBILITIES.

AS SOME UNCERTAINTY REMAINS WITH RESPECT TO THE NORTHWEST EXTENT
OF THIS WINTER STORM...A WINTER STORM WATCH REMAINS IN EFFECT FOR
COUNTIES IMMEDIATELY NORTHWEST OF THE WARNING AREA. THESE AREAS
WILL BE MONITORED FOR EITHER LATER UPGRADES TO WARNINGS OR
ADVISORIES OR CANCELLATIONS...AS DETAILS BECOME MORE CERTAIN.

INZ018-025>027-032>034-OHZ015-016-024-025-251800-
/O.UPG.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
/O.NEW.KIWX.WS.W.0006.121226T0900Z-121227T0300Z/
ALLEN IN-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY-PAULDING-
PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...FORT WAYNE...NEW HAVEN...HUNTINGTON...
ROANOKE...BLUFFTON...OSSIAN...DECATUR...BERNE...MARION...
GAS CITY...UPLAND...HARTFORD CITY...MONTPELIER...PORTLAND...
DUNKIRK...PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...
KALIDA...FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
459 AM EST TUE DEC 25 2012

...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 4 AM TO 10 PM EST WEDNESDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING EARLY
   WEDNESDAY MORNING. THE SNOW WILL BECOME MODERATE TO HEAVY AT
   TIMES BY MIDDAY WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 5 TO 9
   INCHES ARE POSSIBLE BY LATE WEDNESDAY NIGHT...WITH THE HEAVIER
   SNOWFALL AMOUNTS EXPECTED ROUGHLY ALONG AND SOUTH OF HARTFORD
   CITY INDIANA TO OTTAWA OHIO LINE. THE HEAVIEST SNOW WILL FALL
   DURING THE DAY WEDNESDAY. IN ADDITION...NORTHEAST TO NORTH
   WINDS WILL INCREASE TO 25 MPH BY EARLY WEDNESDAY...WITH GUSTS
   BETWEEN 30 AND 35 MPH THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS WILL ALSO RESULT IN 
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW WILL CREATE HAZARDOUS HOLIDAY TRAVEL
   CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

INZ009-OHZ001-002-004-005-251800-
/O.UPG.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
/O.NEW.KIWX.WS.W.0006.121226T1200Z-121227T0600Z/
DE KALB-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
INCLUDING THE CITIES OF...AUBURN...GARRETT...BRYAN...MONTPELIER...
WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...
HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER
459 AM EST TUE DEC 25 2012

...WINTER STORM WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 1 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 7 AM WEDNESDAY TO 1 AM EST THURSDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING AROUND
   DAYBREAK WEDNESDAY MORNING. THE SNOW WILL BECOME MODERATE TO
   HEAVY AT TIMES BY MIDDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7
   INCHES ARE EXPECTED BY LATE WEDNESDAY NIGHT WITH LOCALLY HIGHER
   AMOUNTS POSSIBLE. THE HEAVIEST SNOW IS EXPECTED TO FALL DURING
   THE DAY WEDNESDAY. IN ADDITION...NORTHEAST TO NORTH WINDS WILL
   INCREASE TO 25 MPH EARLY WEDNESDAY...WITH GUSTS BETWEEN 30 AND
   35 MPH THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN 
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL
   CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

INZ006>008-015>017-020-022>024-MIZ080-081-251800-
/O.CON.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-FULTON IN-KOSCIUSKO-WHITLEY-WHITE-CASS IN-
MIAMI-WABASH-BRANCH-HILLSDALE-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...ROCHESTER...
AKRON...WARSAW...WINONA LAKE...SYRACUSE...MENTONE...
COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY...MONTICELLO...
BROOKSTON...MONON...LOGANSPORT...ROYAL CENTER...PERU...
GRISSOM AFB...MEXICO...WABASH...NORTH MANCHESTER...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE
459 AM EST TUE DEC 25 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE WEDNESDAY NIGHT...

HAZARDOUS WEATHER...

 * SNOW IS EXPECTED TO OVERSPREAD THE AREA FROM THE SOUTH
   BEGINNING VERY EARLY WEDNESDAY MORNING... AND BE MODERATE TO
   HEAVY AT TIMES ON WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 2 TO 6
   INCHES ARE POSSIBLE BY LATE WEDNESDAY EVENING WITH LOCALLY
   HIGHER AMOUNTS POSSIBLE. SOME UNCERTAINTY STILL REMAINS
   REGARDING THE EXACT TRACK OF THIS STORM WHICH WILL INFLUENCE
   STORM TOTAL ACCUMULATIONS. IN ADDITION...NORTHEAST TO NORTH
   WINDS WILL INCREASE TO 15 TO 25 MPH EARLY WEDNESDAY...WITH
   GUSTS TO 30 TO 35 MPH THROUGH WEDNESDAY EVENING. LISTEN TO
   LATER STATEMENTS REGARDING THIS WINTER STORM. 

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN 
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL 
   CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
031 
WWUS43 KIWX 251708
WSWIWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1208 PM EST TUE DEC 25 2012

...WINTER STORM TO IMPACT THE AREA STARTING LATE TUESDAY NIGHT...

.A STORM SYSTEM MOVING THROUGH TEXAS THIS MORNING WILL INTENSIFY
AS IT MOVES NORTHEAST THROUGH THE TENNESSEE RIVER VALLEY
WEDNESDAY. SNOW WILL EXPAND NORTHWARD THROUGH NORTHERN INDIANA
AND INTO NORTHWEST OHIO LATE TUESDAY NIGHT INTO WEDNESDAY
MORNING...AND OVERSPREAD SOUTH CENTRAL LOWER MICHIGAN BY MID TO
LATE MORNING WEDNESDAY. THE SNOW IS EXPECTED TO BE MODERATE TO
HEAVY AT TIMES ON WEDNESDAY...ESPECIALLY ALONG AND SOUTHEAST OF
THE ROUTE 24 CORRIDOR...BEFORE DIMINISHING IN INTENSITY WEDNESDAY
NIGHT. IN ADDITION TO THE SNOW...NORTHEAST TO NORTH WINDS WILL
INCREASE TO 25 MPH WITH GUSTS BETWEEN 30 AND 35 MPH IN THE
WARNING AREA...RESULTING IN AREAS OF BLOWING AND DRIFTING SNOW
AND REDUCED VISIBILITIES.

INZ018-025>027-032>034-OHZ015-016-024-025-260115-
/O.CON.KIWX.WS.W.0006.121226T0900Z-121227T0300Z/
ALLEN IN-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY-PAULDING-
PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...FORT WAYNE...NEW HAVEN...HUNTINGTON...
ROANOKE...BLUFFTON...OSSIAN...DECATUR...BERNE...MARION...
GAS CITY...UPLAND...HARTFORD CITY...MONTPELIER...PORTLAND...
DUNKIRK...PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...
KALIDA...FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
1208 PM EST TUE DEC 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM EST
WEDNESDAY...

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING EARLY
   WEDNESDAY MORNING. THE SNOW WILL BECOME MODERATE TO HEAVY AT
   TIMES BY MIDDAY WEDNESDAY. TOTAL SNOW ACCUMULATIONS OF 5 TO 9
   INCHES ARE POSSIBLE BY LATE WEDNESDAY NIGHT...WITH THE HEAVIER
   SNOWFALL AMOUNTS EXPECTED ROUGHLY ALONG AND SOUTH OF HARTFORD
   CITY INDIANA TO OTTAWA OHIO LINE. THE HEAVIEST SNOW WILL FALL
   DURING THE DAY WEDNESDAY. IN ADDITION...NORTHEAST WINDS WILL
   INCREASE TO 25 MPH BY EARLY WEDNESDAY... WITH GUSTS BETWEEN 30
   AND 35 MPH THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS WILL ALSO RESULT IN 
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW WILL CREATE HAZARDOUS HOLIDAY TRAVEL 
   CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

INZ009-OHZ001-002-004-005-260115-
/O.CON.KIWX.WS.W.0006.121226T1200Z-121227T0600Z/
DE KALB-WILLIAMS-FULTON OH-DEFIANCE-HENRY-
INCLUDING THE CITIES OF...AUBURN...GARRETT...BRYAN...MONTPELIER...
WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...SHERWOOD...
HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER
1208 PM EST TUE DEC 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM WEDNESDAY TO
1 AM EST THURSDAY...

HAZARDOUS WEATHER...

 * SNOW WILL OVERSPREAD THE AREA FROM THE SOUTH BEGINNING AROUND
   DAYBREAK WEDNESDAY MORNING. THE SNOW WILL BECOME MODERATE TO
   HEAVY AT TIMES BY MIDDAY. TOTAL SNOW ACCUMULATIONS OF 4 TO 7
   INCHES ARE EXPECTED BY LATE WEDNESDAY NIGHT WITH LOCALLY HIGHER
   AMOUNTS POSSIBLE. THE HEAVIEST SNOW IS EXPECTED TO FALL DURING
   THE DAY WEDNESDAY. IN ADDITION...NORTHEAST WINDS WILL INCREASE
   TO 25 MPH EARLY WEDNESDAY...WITH GUSTS BETWEEN 30 AND 35 MPH
   THROUGH WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN 
   AREAS OF BLOWING AND DRIFTING SNOW...ALONG WITH REDUCED 
   VISIBILITIES AT TIMES. 

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL 
   CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

INZ015>017-020-022>024-260115-
/O.UPG.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
/O.NEW.KIWX.WW.Y.0014.121226T0900Z-121227T0300Z/
FULTON IN-KOSCIUSKO-WHITLEY-WHITE-CASS IN-MIAMI-WABASH-
INCLUDING THE CITIES OF...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...MONTICELLO...BROOKSTON...MONON...LOGANSPORT...
ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...WABASH...
NORTH MANCHESTER
1208 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 PM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 4 AM TO 10 PM EST WEDNESDAY. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT. 

HAZARDOUS WEATHER...

 * SNOW IS EXPECTED TO OVERSPREAD THE AREA FROM THE SOUTH
   BEGINNING EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS OF
   2 TO 4 INCHES ARE EXPECTED BY LATE WEDNESDAY EVENING. IN
   ADDITION...NORTHEAST WINDS WILL INCREASE TO 15 TO 25 MPH EARLY
   WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH THROUGH WEDNESDAY
   EVENING. LISTEN TO LATER STATEMENTS REGARDING THIS WINTER
   STORM.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN
   AREAS OF BLOWING SNOW CAUSING REDUCED VISIBILITIES AT TIMES.

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL
   CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

INZ006>008-MIZ080-081-260115-
/O.UPG.KIWX.WS.A.0004.121226T0900Z-121227T0600Z/
/O.NEW.KIWX.WW.Y.0014.121226T1200Z-121227T0600Z/
LAGRANGE-STEUBEN-NOBLE-BRANCH-HILLSDALE-
INCLUDING THE CITIES OF...LAGRANGE...TOPEKA...SHIPSHEWANA...
ANGOLA...FREMONT...KENDALLVILLE...LIGONIER...ALBION...COLDWATER...
BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE
1208 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM WEDNESDAY TO 1 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 7 AM WEDNESDAY TO 1 AM EST THURSDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT. 

HAZARDOUS WEATHER...

 * SNOW IS EXPECTED TO OVERSPREAD THE AREA FROM THE SOUTH
   BEGINNING EARLY WEDNESDAY MORNING. TOTAL SNOW ACCUMULATIONS OF
   2 TO 4 INCHES ARE EXPECTED BY LATE WEDNESDAY EVENING. IN
   ADDITION...NORTHEAST WINDS WILL INCREASE TO 15 TO 25 MPH EARLY
   WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH THROUGH WEDNESDAY
   EVENING. LISTEN TO LATER STATEMENTS REGARDING THIS WINTER
   STORM.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN
   AREAS OF BLOWING SNOW CAUSING REDUCED VISIBILITIES AT TIMES.

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL
   CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

INZ005-MIZ079-260115-
/O.NEW.KIWX.WW.Y.0014.121226T1200Z-121227T0600Z/
ELKHART-ST. JOSEPH MI-
INCLUDING THE CITIES OF...ELKHART...GOSHEN...NAPPANEE...STURGIS...
THREE RIVERS...WHITE PIGEON...MENDON
1208 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM WEDNESDAY TO 1 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 7 AM WEDNESDAY TO 1 AM EST THURSDAY. 

HAZARDOUS WEATHER...

 * SNOW IS EXPECTED TO OVERSPREAD THE AREA FROM THE SOUTH
   BEGINNING VERY EARLY WEDNESDAY MORNING. TOTAL SNOW
   ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY LATE WEDNESDAY
   EVENING. IN ADDITION...NORTHEAST WINDS WILL INCREASE TO 15 TO
   25 MPH EARLY WEDNESDAY...WITH GUSTS TO 30 TO 35 MPH THROUGH
   WEDNESDAY EVENING.

 * THE COMBINATION OF SNOW AND STRONG WINDS MAY ALSO RESULT IN
   AREAS OF BLOWING SNOW CAUSING REDUCED VISIBILITIES AT TIMES.

IMPACTS...

 * SNOW AND BLOWING SNOW RESULTING IN HAZARDOUS HOLIDAY TRAVEL
   CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED
VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$

What forecasters said that day

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

NWS Northern Indiana wrote its last area forecast discussion before this winter storm watch went out at Dec 24, 1:00 AM EST, 3 hours 26 minutes earlier.

Area forecast discussion, Dec 24, 1:00 AM EST, 3 hours 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
100 AM EST MON DEC 24 2012

.AVIATION... /06 UTC TAFS/
WEAK FRONTAL SYSTEM TO EJECT FM CNTL ARKANSAS THROUGH THE OHIO
VALLEY TODAY...AND INTO SERN OHIO BY MON EVENING. WEAK
FORCING/MOISTURE PROFILES TO PRECLUDE SIG PRECIP ACCUM.
HOWEVER...ANTICIPATE CIGS TO LWR TO BLO FUEL ALT BY MID AFTERNOON.
BEST LLVL MOISTURE FOR RAIN...POSSIBLY MIXED WITH SNOW ACRS NERN
IN/KFWA...WITH CIGS LKLY CONTG TO DETERIORATE INTO IFR RANGE AS
COLDER AIR DEEPENS IN WAKE OF SYSTEM THIS EVENING. NEAR
KSBN...AMOUNT OF LIFT MAY PROVE TOO WEAK FOR PRECIP DEVELOPMENT...
THOUGH PROFILES TO SUPPORT LIGHT FROZEN PRECIP SHOULD IT
EXTEND/DEVELOP FARTHER NW.

&&

.PREV DISCUSSION... /ISSUED 338 PM EST SUN DEC 23 2012/

SHORT TERM.../TONIGHT THROUGH MONDAY NIGHT/

LATEST SFC ANALYSIS HAS WEAK FRONTAL BOUNDARY JUST TO THE SOUTH
OF THE CWA EXTENDING BACK TO DEVELOPING FRONTAL WAVE IN EASTERN
OKLAHOMA. WATER VAPOR IMAGERY ALONG WITH LATEST RAP ANALYSIS
DEPICTING SPLIT FLOW PATTERN ACROSS THE EASTERN TWO THIRDS OF THE
CONUS...EACH WITH THEIR OWN WEAK DISTURBANCE THAT WILL MOVE ACROSS
THE REGION ON MONDAY. NORTHERN STREAM SHORT WAVE CURRENTLY MOVING
THROUGH THE DAKOTAS IS EXPECTED TO CONTINUE EASTWARD INTO THE
GREAT LAKES REGION WHILE SOUTHERN STREAM SHORT WAVE WILL MOVE INTO
THE TN VALLEY. MODEL TRENDS HAVE CONTINUED TOWARD A LACK OF
PHASING WITH THESE DISTURBANCES...RESULTING IN CONCERN OVER
FORCING AND AVAILABLE MOISTURE WITH PRECIP CHANCES MONDAY.
CONSENSUS FAVORS A SPLIT OVER OUR CWA IN BOTH MOISTURE AND
DYNAMICS AS WEAKER SOUTHERN STREAM MOVES QUICKLY INTO EAST TN BY
MONDAY AFTERNOON WHILE NORTHERN STREAM WAVE DIGS INTO THE CENTRAL
GREAT LAKES REGION AND WILL PROVIDE SOME DECENT FORCING IN OUR NE
CWA WITH 500MB HT FALLS OF 60-80M POSSIBLE. PROBLEM IS THAT BEST
MOISTURE WILL BE CONFINED TO THE NORTH. HAVE THEREFORE OPTED TO
KEEP POPS IN HIGH CHANCE RANGE IN EASTERN THIRD OF CWA WHERE BEST
CHANCE FOR PRECIP WILL MATERIALIZE. PRECIP TYPE WILL ALSO COME
INTO PLAY FOR THE E/SE CWA AS TEMPS EXPECTED TO REACH THE MID 30S
AND TIMING OF SYSTEM HAS BEST CHANCE FOR PRECIP AT MAX HEATING.
THIS WILL ALL ACT TO HOLD ANY ACCUMULATING SNOW IN CHECK WITH LESS
THAN AN INCH OVER THE NORTHERN CWA. SYSTEM QUICKLY EXITS THE
REGION MONDAY NIGHT...MAY GET CLIPPED WITH BRIEF LAKE EFFECT IN
ITS WAKE IN FAR NW CORNER BEFORE FLOW BECOMES MORE NE AND SHIFTS ANY
BANDS WEST OF THE AREA.

LONG TERM.../TUESDAY THROUGH SATURDAY/

FOCUS OF THE EXTENDED FORECAST WILL BE ON THE POTENTIAL OF SNOWFALL
ACROSS THE AREA WEDNESDAY.

FORECAST PERIOD BEGINS TUESDAY WILL QUASI ZONAL FLOW ACROSS GREAT
LAKES REGION IN ADVANCE OF SHARPENING H5 TROF AND DEEPENING SFC LOW
ACROSS WRN TX. RAISED HI TEMPS ACROSS THE SOUTHERN 3/4THS OF THE
AREA TUESDAY SLIGHTLY...AND RAISED LOWS SLIGHTLY ON TUESDAY
NIGHT...OTHERWISE NO MAJOR CHANGES TO FORECAST. H5 CUT OFF LOW WILL
DEVELOP OVER ARKLATEX REGION LATE TUESDAY AS UPPER TROF BECOMES
NEGATIVELY TILTED AND EJECTS NORTHEASTWARD THROUGH THE MID
MISSISSIPPI VALLEY INTO THE OHIO VALLEY BY WEDNESDAY. THE EXACT
TRACK OF THE SYSTEM WILL HAVE HUGE IMPLICATIONS FOR SNOWFALL AMOUNTS
ACROSS OUR AREA.

DECENT SPREAD BETWEEN DIFFERENT MODEL SYSTEM TRACKS...NOT TO BE
UNEXPECTED 72+ HOURS OUT. 12Z NAM AND 09Z/15Z SREF ARE FURTHEST NW
W/ SFC LOW TRACK INVOF CINCINNATI...WHILE THE 00Z/12Z ECMWF IS
FURTHER SE WITH A JACKSON KY TO CHARLESTON WV SFC LOW TRACK. THE 12Z
GFS/GEFS IS A NICE COMPROMISE AMONG THE SOLUTIONS...WITH A FRANKFORT
KY TO CHILLICOTHE OH TRACK. OVERALL...RECENT MODEL TRENDS HAVE
SUBTLY SHIFTED THE SYSTEM TRACK NW WITH A SLIGHTLY SLOWER
SOLUTION...WHICH IS NOT UNCOMMON WITH NEGATIVELY TILTED PANHANDLE
HOOK TYPE SYSTEMS.

A LEAN TOWARD A 12Z GFS/GEFS LOW TRACK WOULD BRING THE POTENTIAL FOR
SIGNIFICANT SNOWFALL ACROSS A PORTION OF THE AREA...WITH BROAD
SATURATED ASCENT IN THE NW QUADRANT OF THE SYSTEM. THERMAL PROFILES
WOULD BE CONDUCIVE FOR ALL SNOW WITH THE ONSET OF THE SYSTEM FOR THE
DURATION OF THE EVENT. HOWEVER...A FURTHER NW SOLUTION OR STRONGER
SYSTEM COULD WRAP WARMER AIR INTO SE PORTIONS OF THE AREA AND IN
TURN MIXED PRECIPITATION POTENTIAL. THERE IS ALSO SOME EVIDENCE FOR
HEAVIER BANDED PRECIPITATION ACROSS A PORTION OF THE AREA. STRONG
H75-H6 FRONTOGENESIS...WITH NEAR ZERO OR NEGATIVE EPV ALOFT...AND
STRONG OMEGA IMPINGING ON THE DGZ WOULD SUGGEST INGREDIENTS FOR A
POSSIBLE BAND OF HEAVY SNOWFALL...HOWEVER GIVEN UNCERTAINTIES THIS
FAR OUT...CAN NOT RESOLVE THIS IN THE FORECAST AT THIS TIME. INITIAL
THINKING IS THAT A WIDESPREAD 2-4" EVENT...WITH LOWEST AMOUNTS
WEST/NW...WITH THE POTENTIAL FOR A NARROW BAND OF 4-6" WITH LOCALLY
HIGHER AMOUNTS SOMEWHERE ACROSS THE CENTRAL TO EASTERN/SOUTHEASTERN
PORTION OF THE AREA. CONTEMPLATED A WINTER STORM WATCH WITH THIS
FCST ISSUANCE...BUT DECIDED TO DEFER TO THE NEXT SHIFT TO CAPTURE
LATEST MODEL TRENDS AND POTENTIAL INCREASED CONFIDENCE.

FORECAST WISE...INCREASED POPS WEST/NWWARD WITH GIVEN MODEL
SOLUTIONS LATE TUESDAY NIGHT THROUGH WEDNESDAY...WITH A PERIOD OF
CAT POPS FAR SE WEDNESDAY. LEFT EXPECTED PTYPE ALL SNOW AT THIS
JUNCTURE GIVEN PREFERRED MODEL SOLUTION/TRACK/INTENSITY.

SYSTEM WILL EXIT THE REGION WEDNESDAY NIGHT INTO THURSDAY. SOME
POTENTIAL FOR LIGHT LAKE EFFECT SNOW THURSDAY INTO THURSDAY NIGHT
ACROSS FAR NW PORTIONS OF THE AREA WITH NORTHERLY FLOW IN THE WAKE
OF THIS SYSTEM. OTHERWISE CONDITIONS WILL BE DRY WITH COOLER
TEMPS...ESPECIALLY EAST WITH EXPECTED FRESH SNOWPACK. LOWS THURSDAY
NIGHT COULD DROP INTO THE LOWER TEENS EAST.

NEXT SYSTEM OF INTEREST WILL ARRIVE FRIDAY NIGHT INTO SATURDAY.
ECMWF AND GFS DISAGREE WITH THE OVERALL EVOLUTION OF THE
SYSTEM...BUT BOTH HAVE THE GENERAL IDEA AND IMPACT ON OUR AREA.
ECMWF SEPARATES THE NORTHERN AND SOUTHERN STREAM ENERGY...ALLOWING
FOR SHARPENING TROUGH AND LEE CYCLOGENESIS...SIMILAR TO MIDWEEK
PANHANDLE HOOK SYSTEM. GFS HOWEVER COMBINES BOTH NORTHERN AND
SOUTHERN STREAM ENERGY WITH BROAD UPPER TROF OVER ERN CONUS AND MORE
SUBTLE SHORTWAVE. NEVERTHELESS...TEMPERATURE PROFILES SUPPORT AN ALL
SNOW TYPE EVENT.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...NONE.
&&

SHORT TERM...JAL
LONG TERM...NG
AVIATION...MURPHY
Hazardous weather outlook, Dec 23, 3:52 PM EST, 12 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
352 PM EST SUN DEC 23 2012

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-242100-
LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-STEUBEN-NOBLE-DE KALB-STARKE-
PULASKI-MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-ALLEN IN-WHITE-CASS IN-
MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY-BERRIEN-
CASS MI-ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-
HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND...
MISHAWAKA...ELKHART...GOSHEN...LAGRANGE...TOPEKA...ANGOLA...
KENDALLVILLE...LIGONIER...AUBURN...GARRETT...KNOX...NORTH JUDSON...
WINAMAC...FRANCESVILLE...PLYMOUTH...BREMEN...ROCHESTER...WARSAW...
WINONA LAKE...COLUMBIA CITY...SOUTH WHITLEY...FORT WAYNE...
MONTICELLO...BROOKSTON...LOGANSPORT...PERU...WABASH...
NORTH MANCHESTER...HUNTINGTON...BLUFFTON...OSSIAN...DECATUR...
BERNE...MARION...HARTFORD CITY...MONTPELIER...PORTLAND...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...WAUSEON...
ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA...
PANDORA...VAN WERT...DELPHOS...LIMA
352 PM EST SUN DEC 23 2012 /252 PM CST SUN DEC 23 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO...
NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF LIGHT SNOW ON MONDAY. LITTLE OR NO SNOW
ACCUMULATION IS EXPECTED AT THIS TIME.

A STRONGER STORM SYSTEM IS EXPECTED TO TAKE SHAPE ACROSS THE
SOUTHERN PLAINS ON TUESDAY AND THEN LIFT NORTHEAST INTO THE OHIO
RIVER VALLEY ON WEDNESDAY. WHILE THERE ARE STILL UNCERTAINTIES
REGARDING THE TRACK AND STRENGTH OF THIS SYSTEM...SIGNIFICANT SNOW
ACCUMULATIONS ARE POSSIBLE LATE TUESDAY NIGHT AND WEDNESDAY. AT
THIS TIME...THE GREATEST POTENTIAL OF SIGNIFICANT SNOW
ACCUMULATION APPEARS TO BE ACROSS PORTIONS OF NORTHEAST
INDIANA...SOUTH CENTRAL LOWER MICHIGAN...AND NORTHWEST OHIO. IN
ADDITION...NORTH WINDS WILL LIKELY BECOME GUSTY ON WEDNESDAY
RESULTING IN THE POSSIBILITY OF BLOWING SNOW. ANYONE PLANNING
TRAVEL ACROSS THE REGION FOR THE MIDDLE PORTIONS OF THE WEEK
SHOULD STAY UPDATED ON THE LATEST FORECASTS CONCERNING THIS
POTENTIAL WINTER STORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX

LMZ043-046-242100-
NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI-
352 PM EST SUN DEC 23 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF
SOUTHEASTERN LAKE MICHIGAN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE POSSIBLE AGAIN FROM LATE
TUESDAY NIGHT THROUGH THURSDAY AFTERNOON. SOME GALE GUSTS MAY ALSO
BE POSSIBLE ON WEDNESDAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX/?N=MARINE

In the hours before

Special weather statement, Dec 24, 12:04 AM EST, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1204 AM EST MON DEC 24 2012

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-240900-
LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-STEUBEN-NOBLE-DE KALB-
STARKE-PULASKI-MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-ALLEN IN-
WHITE-CASS IN-MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-
JAY-BERRIEN-CASS MI-ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-
FULTON OH-DEFIANCE-HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND...
MISHAWAKA...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
1204 AM EST MON DEC 24 2012 /1104 PM CST SUN DEC 23 2012/

...STRONG WINTER STORM SYSTEM TO AFFECT THE AREA...

A STRONG WINTER STORM SYSTEM WILL MOVE INTO THE OHIO VALLEY ON
WEDNESDAY. CURRENT FORECASTS TRACK THE SURFACE LOW PRESSURE
CENTER THROUGH KENTUCKY AND ALONG THE OHIO/WEST VIRGINIA BORDER.
THIS STORM TRACK WOULD FAVOR HEAVY SNOW ALONG AND EAST OF THE I-69
CORRIDOR. THERE IS STILL SOME UNCERTAINTY REGARDING THE EXACT
TRACK OF THE SYSTEM...SO THE AXIS OF HEAVIEST SNOWFALL MAY SHIFT
IN THE COMING DAYS. TO KEEP UP WITH ANY WATCHES...WARNINGS...OR
ADVISORIES THAT MAY BE ISSUED...VISIT OUR WEBSITE AT WWW.WEATHER.GOV/IWX.

*TIMING...SNOWFALL WILL BEGIN TO OVERSPREAD THE AREA WEDNESDAY
 MORNING AND WILL END BY THURSDAY MORNING

*ACCUMULATION...2 TO 4 INCHES OF SNOW ACROSS MOST OF THE FORECAST
 AREA WITH HIGHER AMOUNTS ALONG AND EAST OF I-69

*IMPACTS...TRAVEL CONDITIONS MAY BECOME DIFFICULT DUE TO SNOW
 ACCUMULATION AND BLOWING AND DRIFTING SNOW WHICH MAY CAUSE
 VISIBILITY RESTRICTIONS.

BENTLEY

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 24, 3:39 PM ESTGale WatchIWX25 hr

Nearby

Winter Storm Watches in Indiana, 2012Winter Storm Watches in Ohio, 2012Winter Storm Watches in Michigan, 2012Every winter storm watch in 2012

Sources

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