Category Archives: Weather Update

Significant Severe Weather Episode Possible for Tomorrow… #ARwx #MSwx #LAwx #TNwx

The Storm Prediction Center in Norman, Oklahoma has highlighted an area in the mid-South tomorrow for risk of tornadoes and damaging winds. Let’s get into the details…

day2otlk_1730 - 1

There is the moderate risk area indicated in Arkansas, Louisiana, Mississippi, and Tennessee for tomorrow. This is from the updated Day Two outlook today for tomorrow.

day2probotlk_1730_any - 1

The hatched area you see there in the moderate risk area is indicating the chance for explosive thunderstorm development for tomorrow.

Here is the text from the Storm Prediction Center on the current Day Two Outlook…

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 AM CST MON JAN 28 2013

VALID 291200Z – 301200Z

…THERE IS A MDT RISK OF SVR TSTMS FROM NRN LA…CNTRL AND ERN
AR…EXTREME SWRN TN AND NWRN TO WCNTRL MS…

…THERE IS A SLGT RISK OF SVR TSTMS OVER A PORTION OF THE SRN
PLAINS…LOWER THROUGH MID MS VALLEY INTO WRN PARTS OF THE TN AND OH
VALLEYS…

…SYNOPSIS…

THE HIGH AMPLITUDE UPPER TROUGH NOW OVER THE WRN U.S. WILL ADVANCE
EWD…WITH MODEL CONSENSUS INDICATING THAT THE TROUGH AXIS WILL BE
LOCATED FROM MN THROUGH CNTRL/ERN TX BY THE END OF THIS PERIOD. MID
LEVEL JET AND ATTENDANT VORT MAX LOCATED WITHIN BASE OF THE TROUGH
SHOULD EJECT FROM THE SRN PLAINS THROUGH THE LOWER-MID MS VALLEY
TUESDAY NIGHT. AS THIS OCCURS A CYCLONE WILL DEEPEN AND LIFT NEWD
THROUGH THE MID MS VALLEY REGION. A POLAR FRONT WILL EXTEND FROM THE
SFC LOW OVER IA SWWD INTO CNTRL/SRN HIGH PLAINS EARLY TUESDAY…WITH
A PACIFIC FRONT/DRYLINE EXTENDING SWD THROUGH WRN TX. POLAR FRONT
WILL ADVANCE SEWD DURING THE DAY…WHILE THE PACIFIC FRONT SURGES
EWD AND MERGES WITH DRYLINE…CONTINUING THROUGH THE LOWER MS VALLEY
OVERNIGHT.

…SRN PLAINS THROUGH LOWER MS VALLEY REGION…

POTENTIAL EXISTS FOR A SIGNIFICANT SEVERE WEATHER EVENT TUESDAY WITH
DAMAGING WIND AND TORNADOES THE PRIMARY THREATS…ESPECIALLY DURING
THE EVENING AND OVERNIGHT IN MODERATE RISK AREA. OBSERVATIONS SHOW A
RESERVOIR OF MIDDLE TO UPPER 60S DEWPOINTS FROM CNTRL INTO SRN TX.
SLY BOUNDARY LAYER FLOW ALREADY EXISTS FROM THE SRN PLAINS INTO THE
LOWER MS VALLEY AND WILL STRENGTHEN TUESDAY IN ASSOCIATION WITH AN
INTENSIFYING LLJ. WIDESPREAD MULTI-LAYER CLOUDS WILL LIMIT BOUNDARY
LAYER WARMING DURING THE DAY. HOWEVER…MID 60S DEWPOINTS SHOULD
ADVECT AS FAR NORTH AS SERN OK INTO CNTRL AR AND NRN MS BENEATH A
PLUME OF 6.5 C/KM MID LEVEL LAPSE RATES RESULTING IN AT LEAST
500-1000 J/KG MLCAPE.

STORMS ARE EXPECTED TO DEVELOP WITHIN PRE-FRONTAL CONFLUENCE BAND
ACROSS CNTRL/ERN OK INTO NCNTRL/NERN TX EARLY TUESDAY AND SHIFT EWD
AND NEWD DURING THE DAY. OTHER STORMS MAY DEVELOP FARTHER SOUTH
THROUGH ERN TX DURING THE AFTERNOON ALONG MERGING PACIFIC FRONT AND
SHIFT EWD THROUGH THE LOWER MS VALLEY. THE BOUNDARY LAYER WILL
MOISTEN SUFFICIENTLY FOR THIS ACTIVITY TO BECOME SFC BASED. STORMS
WILL BE EMBEDDED WITHIN STRONG DEEP LAYER FLOW WITH A 50+ KT SLY LLJ
AND MID LEVEL WINDS INCREASING TO 80 KT. STORMS ARE EXPECTED TO
EVOLVE INTO A PREDOMINANT QLCS WITH EMBEDDED SUPERCELL AND BOWING
SEGMENTS POSING A RISK FOR DAMAGING WIND AND TORNADOES. TORNADO
THREAT MAY INCREASE OVERNIGHT…ESPECIALLY IN MODERATE RISK AREA
WHERE LLJ INTENSIFYING TO IN EXCESS OF 70 KT WILL BE COLLOCATED WITH
NRN EDGE OF MID 60S DEWPOINTS.

…UPPER MS VALLEY THROUGH TN VALLEY REGION…

OTHER STORMS WILL EXPAND NEWD THROUGH THE MID MS VALLEY AND SWRN
PARTS OF OH VALLEY WHERE INSTABILITY WILL BE MORE LIMITED…BUT
SUFFICIENT FOR A THREAT FOR DAMAGING WIND WITH PRIMARY MODE BEING
LINES AND BOWING SEGMENTS WITH MESO VORTICES. A FEW EMBEDDED
SUPERCELLS WILL ALSO BE POSSIBLE GIVEN SIZE OF HODOGRAPHS AND
STRENGTH OF DEEP LAYER FLOW/SHEAR SUGGESTING A FEW TORNADOES CANNOT
BE RULED OUT.

..DIAL.. 01/28/2013

Stay with Weather or Knot for the latest on this potential for a significant severe weather problem.

Freezing Rain Potential Late Sunday Night… #Findlay #OHwx

After the two inches of snowfall we received today here in Findlay, a quiet weather scene will be on tap for most of the weekend. However, things will be changing Sunday night into Monday. There is the potential for a period of freezing rain. Let’s get right into the details:

FDY Temperature Forecast

This graph here is courtesy of the Iowa State Meteogram. Notice the area I have encircled. That shows the temperatures will be rising. However, it will still be cold enough during that time period that we could be dealing with icing issues.

FDY Freezing Rain Potential

Other forecast model runs had indicated a potential major icing issue for overnight Sunday, into Monday morning. It was initially showing potential for ice accretion of over 1/4″. This particular model run is showing the potential for 1/10″ to 1/8″ of ice accretion. That is not a lot of ice. However, it does not take much to cause travel issues.

This particular icing threat more than likely will end during the mid to late morning hours on Monday. This will be due to temperatures rising above freezing. We will stay on top of the situation here on the Weather or Knot Blog. Stay tuned.

Rain is on the Way… #ARwx #LAwx #MSwx #MOwx #TNwx #TXwx

p168i

The storm center that will be affecting the US this week will end up dumping alot of rain. The areas that are in line for the heaviest rainfall will be essentially on a line from Waco, Texas up to the Missouri bootheel. This will help with the drought situation down in Texas. There is also the potential of some severe weather down in southern and eastern Texas this week.

Stay with Weather or Knot for the latest weather information.

Sunday Morning Weather Recap… #INwx #MIwx #OHwx

IL_IN.ir January 5

SATELLITE: This morning’s infrared satellite map is showing plenty of cloud cover across the Lower Great Lakes region. This has resulted in temperatures staying fairly steady from last night until the morning. Temperatures have been hovering right above freezing for much of last night, and into this morning. The result has been the snowpack starting to melt. With warmer temperatures being forecasted for the next five to seven days, you can say goodbye to the snow on the ground.

Jan 5 AM Surface Map

SURFACE MAP: It is a very quiet surface map here on this early Sunday morning across the region. Not much weather happening around the Great Lakes this morning. The weather pattern will start to get active once again by next weekend. We will go into those particular details later on here in this blog entry.

7 Day Precip Total January 5

RAINFALL FORECAST: A wet seven day period lies ahead. Precipitation amounts across the Lower Great Lakes Region should range from one to 1.75 inches in the next seven days. Most of this precipitation will be in the form of rain.

GFS_3_2013010600_F168_WSPD_500_MB

PLENTY OF WIND: I thought I share this with you. The storm center for next week will feature very strong winds at about 18,000 feet off the ground. Winds in excess of 120-130 mph at that particular level. That is one indicator that this storm has the potential of being a storm to be contended with.

GFS_3_2013010600_F168_TMPF_2_M_ABOVE_GROUND

WARM-UP ON THE WAY: As advertised, plenty of warm air will be flowing into the region as well. Normally one does not see lower to middle 50s at this particular time of the year. However, it looks like that will be the case next weekend across the region.

Stay with Weather or Knot for the latest weather information. Have a great Sunday!

Saturday Morning Weather Update… #INwx #KYwx #MIwx #OHwx

We are currently tracking the potential for a snowstorm just after Christmas here in the lower Great Lakes region. Let’s take a look at the Hazardous Weather Outlooks from the National Weather Service Forecast Offices in Cleveland, Northern Indiana, and Wilmington, OH…

Cleveland:

OHZ003-006>009-017>019-027>030-036>038-047-230930-
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-HANCOCK-SENECA-HURON-WYANDOT-
CRAWFORD-RICHLAND-ASHLAND-MARION-MORROW-HOLMES-KNOX-
426 AM EST SAT DEC 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
OHIO…NORTHEAST OHIO AND NORTHWEST OHIO.

.DAY ONE…TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN…SUNDAY THROUGH FRIDAY.

A COUPLE OF STORM SYSTEMS WILL AFFECT THE AREA NEXT WEEK. THE
FIRST ARRIVING LATE CHRISTMAS EVE AND COULD BE ACCOMPANIED BY A
LIGHT WINTRY MIX. A STRONGER STORM SYSTEM WILL ARRIVE ON WEDNESDAY
WITH SIGNIFICANT SNOW ACCUMULATIONS POSSIBLE.

.SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

Northern Indiana:

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
437 AM EST SAT DEC 22 2012

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-230945-
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
437 AM EST SAT DEC 22 2012 /337 AM CST SAT DEC 22 2012/

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

.DAY ONE…TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN…SUNDAY THROUGH FRIDAY

THERE IS A CHANCE OF SNOW MONDAY.

A STORM SYSTEM IS EXPECTED TO TAKE SHAPE ACROSS THE LOWER
MISSISSIPPI RIVER VALLEY TUESDAY AND THEN LIFT NORTHEAST INTO THE
OHIO RIVER VALLEY ON WEDNESDAY. WHILE THE EXACT TRACK AND STRENGTH
OF THIS STORM REMAINS UNCERTAIN…ACCUMULATING SNOW IS POSSIBLE WITH
THIS SYSTEM FOR THE MIDDLE PORTIONS OF NEXT WEEK.

Wilmington, OH:

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
515 AM EST SAT DEC 22 2012

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-231015-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-DARKE-
SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-
FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-
FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-
HIGHLAND-ADAMS-PIKE-SCIOTO-
515 AM EST SAT DEC 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA…SOUTHEAST INDIANA…NORTHEAST KENTUCKY…NORTHERN
KENTUCKY…CENTRAL OHIO…MIAMI VALLEY OF OHIO…SOUTH CENTRAL
OHIO…SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE…TODAY AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN…SUNDAY THROUGH FRIDAY.

A LOW PRESSURE SYSTEM WILL LIFT THROUGH KENTUCKY INTO WEST
VIRGINIA LATE SUNDAY NIGHT INTO MONDAY NIGHT…SPREADING
PRECIPITATION INTO THE REGION. AT THIS TIME IT APPEARS THAT
TEMPERATURE PROFILES IN THE ATMOSPHERE MAY SUPPORT SOME FREEZING
RAIN AND OR SNOW.

A STRONGER STORM SYSTEM IS FORECAST TO LIFT OUT OF THE LOWER
MISSISSIPPI VALLEY ON WEDNESDAY. AT THIS TIME IT APPEARS THAT THE
CENTER OF THE STORM WILL PASS TO THE SOUTH OF THE REGION. THIS
WILL KEEP COLD AIR OVER THE OHIO VALLEY…WITH THE MAIN
PRECIPITATION TYPE EXPECTED TO BE SNOW. THERE IS A POSSIBILITY
OF SIGNIFICANT SNOW ACCUMULATIONS WITH THIS STORM.

THE PATH AND STRENGTH OF EITHER OR BOTH OF THESE SYSTEMS COULD
CHANGE…SO STAY TUNED TO THE LAST FORECASTS FOR THE MOST UP TO
DATE INFORMATION.

Stay with Weather or Knot for the latest information on this pending snowstorm.

Storm Update… #INwx #OHwx #PAwx

Well, the potential is growing for a winter storm to affect the region Thursday night and Friday. Here are the following updates from the NWS in Northern Indiana and the NWS in Cleveland…

Northern Indiana:

INZ013-015-017-018-020-022>027-032>034-OHZ001-002-004-005-015-016-
024-025-191100-
PULASKI-FULTON IN-WHITLEY-ALLEN IN-WHITE-CASS IN-MIAMI-WABASH-
HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY-WILLIAMS-FULTON OH-
DEFIANCE-HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF…WINAMAC…FRANCESVILLE…MEDARYVILLE…
ROCHESTER…AKRON…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…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
745 PM EST TUE DEC 18 2012

…STRONG AND POTENTIALLY DAMAGING WINDS ALONG WITH ACCUMULATING SNOW
POSSIBLE THURSDAY NIGHT INTO FRIDAY MORNING…

DEVELOPING LOW PRESSURE OVER SOUTHEAST COLORADO THIS EVENING WILL
INTENSIFY RAPIDLY INTO THURSDAY AS IT TRACKS EAST NORTHEAST INTO
NORTHWEST INDIANA BY THURSDAY EVENING. WIDESPREAD RAIN AND PERHAPS
AN ISOLATED THUNDERSTORM ARE LIKELY WITH THIS SYSTEM LATE

WEDNESDAY NIGHT AND THURSDAY.

A BAND OF LIGHT TO MODERATE SNOW IS EXPECTED TO WRAP IN BEHIND
THIS SYSTEM THURSDAY EVENING WITH FALLING TEMPERATURES AND STRONG
WEST TO NORTHWEST WINDS LEADING TO SOME LAKE ENHANCEMENT OF THE
SNOW LATE THURSDAY NIGHT THROUGH FRIDAY MORNING. SUSTAINED WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH ALONG WITH PERIODS OF
MODERATE TO HEAVY SNOW WILL RESULT IN POOR VISIBILITIES AND
DIFFICULT TRAVEL CONDITIONS. IN ADDITION MINOR WIND DAMAGE AND
SPORADIC POWER OUTAGES MAY OCCUR.

PERSONS PLANNING TRAVEL THURSDAY NIGHT AND FRIDAY SHOULD CLOSELY
MONITOR LATER FORECASTS ON THIS DEVELOPING WINTER STORM.

Cleveland:

HAZARDOUS WEATHER OUTLOOK…CORRECTED
NATIONAL WEATHER SERVICE CLEVELAND OH
357 PM EST TUE DEC 18 2012
OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-192100-
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
ASHTABULA INLAND-HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
357 PM EST TUE DEC 18 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
OHIO…NORTHEAST OHIO…NORTHWEST OHIO AND NORTHWEST PENNSYLVANIA.
.DAY ONE…THIS AFTERNOON AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN…WEDNESDAY THROUGH MONDAY.

A STRONG WEATHER SYSTEM WILL AFFECT THE REGION THURSDAY INTO
FRIDAY. WINDS MAY BE STRONG LATE THURSDAY AND CAUSE GUSTS TO NEAR
50 MPH. RAIN WILL TRANSITION TO SNOW ON THURSDAY NIGHT AND LAKE
EFFECT SNOW SHOWERS WILL INCREASE ON FRIDAY. SNOW AMOUNTS COULD
APPROACH ADVISORY OR WARNING THRESHOLDS IN PORTIONS OF THE SNOW
BELT. THE STRONG WINDS MAY CAUSE CONSIDERABLE BLOWING AND DRIFTING
SNOW…ESPECIALLY IN THE SNOW BELT. STAY TUNED TO THE LATEST FORECAST
FOR UPDATES ON THIS DEVELOPING STORM SYSTEM.

.SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

Mid-Week Storm… #ILwx #INwx #MIwx #OHwx #WIwx

Most forecast model runs are hinting at potentially a major snowstorm somewhere in the Great Lakes the middle of this upcoming week.

Let us take a look at what a few forecast models are showing…

12z Euro:

12zeuro500mbHGHTNA144

12z GFS:

12zgfs500mbHGHTNA144

12z GGEM:

12zggem500mbHGHTNA144

The general idea is there of a big storm to affect the Great Lakes region this upcoming week. However, this is just a projected forecast model. These are not set in stone. Stay with Weather or Knot for the latest on this developing weather situation for this upcoming week. Have a good evening!

Looking Down the Road… #INwx #MIwx #OHwx

Since the system this weekend does not look to be that serious, there are indications in forecast model runs that another storm center may affect the region next weekend. Let’s take a look at a few of these forecast models (these particular model runs took place at 7:00 AM est this morning)…

12z (7:00 AM est) CMC Ensemble:

12zCMCEnsemble

12z (7:00 am est) European:

12zEURO

12z (7:00 am est) Global Forecast System (GFS) Ensemble:

12zGFSEnsemble

These projections are still many days from happening, if they do. However, it is important to give a heads-up. We will be monitoring the situation here in the coming days here on Weather or Knot. Stay tuned.

Pattern Change? #INwx #MIwx #OHwx

This will be a fairly short blog posting. However, it is important enough to warrant a posting. There is the potential for a major change in the weather pattern for next week.

Let’s take a look at three weather models here to see what they have to say…

GFS:

0zGFShr138

Euro:

f168

GFS Ensemble:

GFSEnsemble0zhr138

It is still far enough out there that it is still too early to hammer out the specifics. However, I wanted to give you all a heads-up to this potential. We will keep you up to date here on the Weather or Knot Blog. Have a great Wednesday!

Midday Weather Recap #INwx #KYwx #MIwx #OHwx

The midday satellite picture is showing plenty of clear skies here in the lower Great Lakes, especially in Indiana and Ohio. However, note the clouds down along the Ohio River in South Central Indiana and much of northern Kentucky. Those clouds are in advance of a low pressure area that will bring some light snow down along the Upper Ohio River Valley into much of Kentucky in the next 24-30 hours.

For now, there is a clear scan on weather radar across the Lower Great Lakes region. As noted earlier in this blog posting, some light snow will be showing up on radar. This will occur later tonight, and into Tuesday morning as well.

The surface low pressure area you see there on the morning surface will be the one that could result in light accumulating snowfall across the Middle and Upper Ohio River Valley tonight into tomorrow morning.

This is this morning’s 7:00 AM Global Forecast System (GFS) model run showing the snow potential in the Ohio Valley. Although amounts will be light (as noted above), it will be enough so that you need to use caution on the roads as you head to your destination overnight tonight into tomorrow morning.

Stay with Weather or Knot for the latest weather information.

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