Oklahoma Weather Discussion - February/March 2013

[LocoAko]

[LocoAko]

Winter Storm Watch issued for the metro and surrounding areas:

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
312 PM CST SAT FEB 23 2013

OKZ023>031-033>036-038-TXZ083-240515-
/O.EXA.KOUN.WS.A.0002.130225T0000Z-130226T1200Z/
CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HARMON-GREER-KIOWA-JACKSON-COMANCHE-
HARDEMAN-
INCLUDING THE CITIES OF...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...M OORE...
SHAWNEE...SEMINOLE...HOLLIS...MANGUM...HOBART...AL TUS...LAWTON...
QUANAH...CHILLICOTHE
312 PM CST SAT FEB 23 2013

...WINTER STORM WATCH IN EFFECT MONDAY AND MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT MONDAY AND MONDAY NIGHT.

* MAIN IMPACT: WIDESPREAD SNOW ACCUMULATIONS OF 4 TO 6 INCHES AND
ISOLATED HIGHER AMOUNTS ARE POSSIBLE ACROSS PORTIONS OF WESTERN
NORTH TEXAS AND SOUTHWEST OKLAHOMA...UP THROUGH CENTRAL PORTIONS
OF OKLAHOMA.

* TIMING: HEAVIEST SNOW FROM WESTERN NORTH TEXAS UP THE I-44
CORRIDOR IS EXPECTED MONDAY AFTERNOON THROUGH MONDAY NIGHT.

* OTHER IMPACTS: STRONG NORTHWEST WIND WILL CAUSE BLOWING AND
DRIFTING SNOW...WHICH WILL SIGNIFICANTLY RESTRICT VISIBILITIES
AND MAKE TRAVEL VERY DANGEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

KEEP UP WITH THE LATEST WEATHER INFORMATION...ESPECIALLY IF YOU
PLAN TO TRAVEL.

[jn1780]

Im guessing the NWS is thinking it will go a little bit further south since the last update.

[ZYX2]

Special Weather Statement from NWS Tulsa:


...A SIGNIFICANT WINTER STORM WILL IMPACT MUCH OF EASTERN OKLAHOMA
AND NORTHWEST ARKANSAS LATE MONDAY INTO EARLY TUESDAY...

AN UPPER LEVEL SYSTEM WILL EJECT OUT OF THE DESERT SOUTHWEST
SUNDAY...AND MOVE EAST NEAR THE RED RIVER AND EVENTUALLY INTO
ARKANSAS MONDAY INTO MONDAY NIGHT. RAIN WILL INCREASE ACROSS MOST OF
THE AREA LATE SUNDAY NIGHT INTO MONDAY...WITH A MIX OR CHANGEOVER TO
SNOW POSSIBLE NORTHWEST OF INTERSTATE 44 BY LATE MONDAY AFTERNOON
OR EARLY EVENING.
ACCUMULATING SNOW WILL BE POSSIBLE ACROSS NORTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS MAINLY MONDAY NIGHT INTO EARLY TUESDAY AS
COLDER AIR WRAPS INTO THE AREA BEHIND THE EXITING UPPER SYSTEM.
STRONG NORTHWESTERLY WINDS DEVELOPING MONDAY NIGHT WILL ALSO
RESULT IN AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES. AT THIS
TIME...UP TO 4 INCHES OF SNOW WITH LOCALLY HIGHER AMOUNTS APPEAR
POSSIBLE MAINLY ACROSS PARTS OF NORTHEAST OKLAHOMA.
PAWNEE...OSAGE AND WASHINGTON COUNTIES IN NORTHEAST OKLAHOMA HAVE
BEEN INCLUDED IN A WINTER STORM WATCH BEGINNING MONDAY AFTERNOON.
THERE REMAINS UNCERTAINTY CONCERNING THE TRACK OF THE SYSTEM
AND RESULTANT SNOWFALL...ALTHOUGH IT IS LIKELY THAT WINTER WEATHER
HEADLINES WILL EVENTUALLY BE EXPANDED FARTHER EAST AND SOUTH WITH
LATER FORECASTS.
STAY TUNED TO THE LATEST FORECASTS AND STATEMENTS FROM THE
NATIONAL WEATHER SERVICE IN TULSA...AS THIS FORECAST WILL CONTINUE
TO BE REFINED AS NEW DATA COMES IN.
Instructions:
Target Area:
Adair
Cherokee
Choctaw
Craig
Creek
Delaware
Haskell
Latimer
Le Flore
Mayes
McIntosh
Muskogee
Nowata
Okfuskee
Okmulgee
Ottawa
Pittsburg
Pushmataha
Rogers
Sequoyah
Tulsa
Wagoner

[venture]

Mmk...18Z Model discussion...

NAM first

6PM Sun - 9PM: Precip moves in through Western OK. Mostly like 0.1 to 0.2" of precip over most areas. North of I-40 Snow/Sleet/Graupel Mix, South of I-40 rain.

9PM - 12AM Mon: Two areas of light precip, one from SC to SW OK and the other in the OK PH. Mostly the same with precip type, still a mix or rain in most areas. Maybe another 0.1" to 0.2" of precip in spots.

12AM - 3AM: Band weakens some as it moves east, most over much of Western OK west of I-35. Heaviest precip (heavy being relative of 0.1 to 0.2" amounts) in NC OK, mainly less than 0.1" elsewhere. Still looking at mostly rain with a mix here and there.

3AM - 6AM: Scattered light precip across the state. Heaviest amounts in NC OK still from near the OKC area to the North along I-35 and west of 0.1 to 0.3". Lot of warm air still, so mostly all rain still except for far W OK and far N OK.

6AM - 9AM: Change over should start kicking in over NW, NC, and SW OK as cold air works in. Precip amounts look heaviest from Central OK arching north and then northwest. Dry slot pushing through much of SW OK approaching Central areas. Amounts look 0.1 to 0.4"...heavier the further north you get.

9AM - 12PM: Cold air mixes in a bit more. Elk City to Clinton to Enid to Ponca should be all snow at this point. SW OK a mix (where precip falls). Central mix to mostly rain. Heaviest precip pretty much just in the Northern half of OK which areas around OKC and back to the SW dryslotted.

For nearly the rest of the day is going to be a carbon copy of what I posted above, going by the NAM so I'm going to stop here. NAM really doesn't show much change over in OKC until 9PM, and at that point majority of the precip is already moving away.


GFS next...
Not going to get into a long discussion here. Not really all that different than previous runs. It increase snowfall in NW OK, decreases it pretty much everywhere else. A lot of this is coming down to timing of cold air and the precip. For us it keeps showing precip starts to wind down once it gets cold enough to ensure 100% snow. Surface temps never really get below freezing, so icing isn't a major concern.

Neither of these models are really the favorites right now, and their run to run consistency hasn't been established yet. Pretty much sticking with my earlier thinking with Norman seems to be as well when it comes to their advisories.

I'll double back tonight when the next runs come out to really go over things.

[venture]

Norman's AFD...

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
327 PM CST SAT FEB 23 2013


.DISCUSSION...
STRONG WINTER STORM WILL IMPACT THE REGION LATE SUNDAY THROUGH
LATE MONDAY NIGHT. FORECAST WILL BE TAILORED TO A GFS/ECM BLEND
WITH THE WRF/NAM DISREGARDED. ALTHOUGH THERE ARE SOME SLIGHT
VARIATIONS WITH RUN TO RUN CONSISTENCY OF GFS/ECM...THE WRF/NAM
HAS BEEN SIGNIFICANT OUTLIER. TRENDED SNOW TOTALS FARTHER SOUTH
AND EAST WHICH WILL ALLOW US TO EXPAND THE WINTER STORM WATCH
THROUGH THE OKC AND LAW AREAS. CONFIDENCE IS NOT ALL THAT HIGH ON
SNOW TOTALS FOR THE I-44 CORRIDOR AS SNOW WILL INITIALLY BE IN
WARM LOWER LEVEL ENVIRONMENT...SIMILAR TO THE PAST FEW EVENTS.
BEST ACCUMULATIONS WILL BE WHERE WE CAN GET CONVECTIVE/ENHANCED
BANDING NORTH AND WEST OF MID-LEVEL CYCLONE...WHICH TRENDS SUGGEST
COULD BE NEAR THE I-44 CORRIDOR. OF GREATEST IMPACT MAY BE THE
POTENTIAL FOR BLIZZARD- LIKE CONDITIONS WITH STRONG WINDS MONDAY
AND MONDAY NIGHT. FAIRLY HIGH PROBABILITY THAT A BLIZZARD WARNING
WILL BE NEEDED OVER AT LEAST WESTERN AND NORTHERN PORTIONS OF
OKLAHOMA...PERHAPS INTO CENTRAL OKLAHOMA. WE DECIDED TO LEAVE
CURRENT WINTER STORM WATCH GOING AND TRANSITION TO WINTER STORM
AND/OR BLIZZARD WARNINGS AS OPPOSED TO GOING WINTER STORM
WARNING...WHICH ALREADY MENTIONS THE POSSIBILITY OF BLIZZARD
CONDITIONS...TO BLIZZARD WATCH...THEN THE WARNINGS.


FOR THE MOST PART...KEPT FORECAST TRANQUIL AFTER EXIT OF THIS
STORM SYSTEM AND IT LOOKS BELOW AVERAGE FOR TEMPS INTO NEXT
WEEKEND WITH REINFORCING COLD FRONTS INDUCED BY EASTERN LONG-WAVE
TROF DEVELOPMENT.

[Easy180]

Are the ground temps in the 40's already and set to go up even more with tomorrow's weather?...I'm wondering if we are looking at a mostly grass impact aside from the blowing snow

Assuming the bullseye doesn't shift south of course

[venture]

Are the ground temps in the 40's already and set to go up even more with tomorrow's weather?...I'm wondering if we are looking at a mostly grass impact aside from the blowing snow

Assuming the bullseye doesn't shift south of course

Mesonet has us at 42-45 over much of the metro area. It'll cause some initial melting yes, but it doesn't take much to cool those down. Even with a foot of snow on the ground, temps in NW OK are still in the mid to upper 30s.

[venture]

So new NAM just keeps with the same. Heavy rain/storms through early Monday and then dry slots us. Some wrap around overnight Tuesday with some light snow.

HPC seems to be tossing the last few NAM runs out still, preferring GFS/ECMWF for this. New GFS will be out later this evening.

[venture]

As we all wait for the new update, NWS Norman has put out these graphics...



6AM Monday - 6PM Monday: This graphic isn't loading the small size, but can be seen here: http://www.srh.noaa.gov/images/fxc/o...mage_full1.jpg

[ou48A]

National Weather Service Text Product Display
NATIONAL WEATHER SERVICE NORMAN OK
947 PM CST SAT FEB 23 2013

...DANGEROUS WINTER STORM WILL AFFECT THE AREA SUNDAY NIGHT
THROUGH MONDAY NIGHT...

.UPDATE...
WILL INCREASE LOWS TONIGHT A FEW DEGREES ACROSS PARTS
OF WESTERN AND NORTHERN OKLAHOMA.

WINTER STORM WATCH IS IN GREAT SHAPE.

&&

.DISCUSSION...
CLEAR AND QUIET WEATHER WILL PREVAIL TONIGHT. A MAJOR
WINTER STORM WILL AFFECT THE AREA SUNDAY NIGHT THROUGH
MONDAY NIGHT.

WILL INCREASE LOWS NEAR THE ALTUS...CLINTON...WOODWARD...
AND STILLWATER AREAS TONIGHT AS INCREASING LOW LEVEL WINDS
SHOULD KEEP TEMPERATURES FROM FALLING AS MUCH AS PREVIOUSLY
FORECAST.

THERE IS A LOW CHANCE FOR PATCHY LIGHT FOG OR FREEZING
FOG LATE TONIGHT INTO SUNDAY MORNING WITH THE BEST CHANCES
OVER THE SNOWPACK IN FAR NORTHERN OKLAHOMA...BUT WILL
NOT MENTION DUE TO LOW CONFIDENCE OF OCCURRENCE.
VISIBILITIES SHOULD MAINLY STAY ABOVE 3 MILES IF THE
FOG DEVELOPS.

WINTER STORM WATCH IS IN GOOD SHAPE. BLIZZARD CONDITIONS
ARE LIKELY ACROSS NORTHWEST OKLAHOMA MONDAY AND MONDAY
NIGHT. WILL ALLOW 00Z MODEL RUNS TO COME IN AND DEFER TO
THE MIDNIGHT SHIFT FOR ANY POSSIBLE UPGRADE TO WARNINGS.
ROUTINE FORECAST PRODUCTS WILL UPDATED SHORTLY.

[ZYX2]

The GFS and NAM are in near perfect agreement over the track. As it looks now it seems as though Tulsa will be left out on the snow part of the storm, but OKC will be riding the line a little closer. Tight snow gradient with this storm.

Wherever this storm tracks the people beneath it will get dumped on.

[ZYX2]

The Wichita NWS has 5-10" predicted for the Tulsa metro and north of the OKC metro. I don't really see that happening but I wouldn't complain if it did...

[Anonymous.]

Finally got a chance to look at the models tonight.


First off... Wow this storm is great to see. Two large systems back to back like this is a great sign for a lot the plains.

Now onto the track - some better agreement coming together, NW OK is obvious to get pounded. I am starting to think OKC could get dry-slotted at this point. I know the NAM is going to shift SE [please!], it has every storm. But for some reason, I can see this epic opportunity of getting snow being a huge bust for OKC. I really want to be wrong, but just going off the current runs. I won't hold my breath.

I still like the GFS as it did a great job with the similar setup last week, but it needs to stay as a closed-off low and really anchor down S of the Red River, that will crank out ungodly amounts of snow over 2/3 of the state. Kansas had their fun last week, it is our turn.


Will chime in with more serious posts after tomorrow morning's runs. Everyone think SNOW!

[ZYX2]

Finally got a chance to look at the models tonight.


First off... Wow this storm is great to see. Two large systems back to back like this is a great sign for a lot the plains.

Now onto the track - some better agreement coming together, NW OK is obvious to get pounded. I am starting to think OKC could get dry-slotted at this point. I know the NAM is going to shift SE [please!], it has every storm. But for some reason, I can see this epic opportunity of getting snow being a huge bust for OKC. I really want to be wrong, but just going off the current runs. I won't hold my breath.

I still like the GFS as it did a great job with the similar setup last week, but it needs to stay as a closed-off low and really anchor down S of the Red River, that will crank out ungodly amounts of snow over 2/3 of the state. Kansas had their fun last week, it is our turn.


Will chime in with more serious posts after tomorrow morning's runs. Everyone think SNOW!

One of the meteorologists that I follow on twitter (who has been very accurate lately) said that he thinks the models are underestimating the strength of the storm and believes more snow will fall in eastern Oklahoma than the models have forecasted. Not sure how that would play out for you all, though.

[Bunty]

WINTER STORM WARNING OUT FOR OKLAHOMA CITY

Updated: Sun Feb-24-13 01:36am CST
Effective: Sun Feb-24-13 01:36am CST
Expires: Tue Feb-26-13 06:00am CST

Severity: Moderate
Urgency: Expected
Certainty: Likely

Status: Actual
Type: Alert
Category: Met

Areas affected: Canadian; Cleveland; Comanche; Garfield; Grady; Grant; Kay; Kingfisher; Lincoln; Logan; McClain; Noble; Oklahoma; Payne; Pottawatomie; Seminole

Instructions: Avoid travel. Be sure you can take care of yourself and your family if you lose electrical power. Monitor weather forecasts and information.

Message summary: ...blizzard conditions likely monday and monday night across parts of western and northern oklahoma...
...winter storm warning in effect from midnight monday to 6 am cst tuesday...

The national weather service in norman has issued a winter storm warning for snow and blowing snow...which is in effect from midnight monday to 6 am cst tuesday. The winter storm watch is no longer in effect.

* timing: snow will begin in the oklahoma city and lawton areas monday morning and be heavier monday evening. The snow will end west to east early tuesday.
* other impacts: strong and gusty northwest wind will cause blowing and drifting snow. At times near blizzard conditions will be possible. Travel will be very dangerous monday until at least tuesday morning.

[Bunty]

Meanwhile, there is a blizzard warning out for most of the western 1/3 of Oklahoma:


BLIZZARD WARNING ALERT


...BLIZZARD CONDITIONS LIKELY MONDAY AND MONDAY NIGHT ACROSS
PARTS OF WESTERN AND NORTHERN OKLAHOMA...

...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST
TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING: SNOW...HEAVY AT TIMES...IS EXPECTED TO BEGIN OVER
WESTERN OKLAHOMA SUNDAY EVENING AND INTENSIFY AND PROGRESS EAST
DURING MONDAY. THE SNOW WILL END WEST TO EAST EARLY TUESDAY.

* OTHER IMPACTS: STRONG NORTHWEST WIND WILL CAUSE BLIZZARD
CONDITIONS ACROSS PARTS OF WESTERN AND NORTHERN OKLAHOMA MONDAY
AND MONDAY NIGHT WITH NEAR ZERO VISIBILITY AND CONSIDERABLE
BLOWING AND DRIFTING SNOW. TRAVEL WILL BE VERY DANGEROUS MONDAY
AND TUESDAY MORNING.

Instructions: DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW WILL MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING STORM.
Target Area:
Alfalfa
Beckham
Blaine
Caddo
Custer
Dewey
Ellis
Greer
Harmon
Harper
Jackson
Kiowa
Major
Roger Mills
Was hita
Woods
Woodward

[SoonerDave]

Venture its looking like most believe this thing will affect OKC midday tomorrow. Are we talking a normal if soggy morning, but nightmare drive Home? Thinking about how the schools might be handling this...normal AM, poss blizzard late day but before school lets out? Sure looks like timing is a headache!

[venture]

In all honesty this morning, I am really torn on what is going to happen with this one. So the preference right now by HPC is a mix of the 00Z GFS and 00Z UKMET, but I will say the 06Z NAM and GFS line up pretty well now and continue the trends. Also considering the success the GFS has been having lately, that helps with confidence.

6PM Sunday - 12 AM Monday
GFS: Precip moves in through western 1/3 of state. Line of storms from SW OK into TX. There is a Slight Risk of severe weather for this area today marked by SPC. Amounts roughly 0.1 to 0.4 (highest in Woods County).
NAM: Precip layout identical to the GFS for the most part, but a little lighter in amounts. It keeps the heaviest precip back in the panhandles at this point so around 0.1" for NW OK only.

12 AM Monday - 6 AM
UKMET: Significant precip is over the Western 1/3rd to 1/2 of the state with precip amounts of 0.5 to 0.75", with slightly higher amounts around Lawton to Frederick of 0.75 to 1.0".
GFS: Pretty good alignment with UK. Low is SW of Wichita Falls at this point with heaviest precip band from Elk City up to Ponca of amounts 0.4 to 0.75". Elsewhere 0.1 to 0.4" from just west of a Tulsa to McAlester line.
NAM: Solid line of heavy precip from I-35 to the west. up to 1-1.5" north of I-40 and up to 0.8" south of I-40. Surface low matched up with others.

6 AM to 12 PM
UKMET: Low tracks south of Red near Gainsville TX. Heaviest precip will be over the main body of the state at this point. Upper air temps would suggestion all snow roughly from the I-44 area back to the west.
GFS: Low is right along the Red River just west of Marietta. Significant precip is generally north of I-40 with two main areas. NW OK over 1 to 1.5" and NE OK near TUL of around 1". Otherwise generally 0.5 to 0.8". SW quarter of OK south of I-40 and west of I-35 is dryslotted at this point.
NAM: Surface over Frederick, so west of the other guidance by a bit. Heavy band of precip from Seminole to Lake Eufaula up to TUL and west. Amounts up to 1" in these areas. Up to 0.75" south of this area. Lighter in NE and SE OK.

12 PM to 6 AM
UKMET: Surface low tracks along the Red River into extreme SE OK. Heaviest wrap around is back through Central and Eastern OK. Western 1/3rd will see another 0.1 to 0.4", Central 0.4 to 0.75", and Eastern 0.4 to 0.75" as well.
GFS: Heaviest precip is now over NE OK of 1 to 1.5". Still moderate to heavy precip in NC and NW OK of 0.5 to 0.8". Lighter elsewhere. Dryslot appears to try to fill in some, but precip only gets up to 0.1".
NAM: Low is over just past Durant at this point. SC OK is the only one dry slotted at this point. From Altua to Norman to McAlester looks like at least 0.5 to 0.75" of precip, then around 1 to 1.5" north of I-40 with highest targets near TUL and NW OK.

6PM to 12 AM
GFS: Much of the precip is out of SW OK. Looks like everyone is dryslotted except for parts of NW and NC OK where 0.1 to 0.4" could fall, and SE OK where around 0.1" could fall.
NAM: Dryslot says hello and shuts down most of Eastern OK from TUL and south. Wrap around just near I-35 and west. < 0.2" south of I-40, up to 0.5" north of I-40...around 0.4" NW OKC to 0.1" in Norman. Low is out over NC AR.

12 AM Tuesday to 6 AM
UKMET: Surface low is all the way to STL at this time. Wrap around continues over much of the state. 0.1" or less West, 0.1 to 0.4" over Central, and 0.1 to 1" over Eastern (higher NE, lowest SE).
GFS: Most of the state is dry but may have some lingering flurries will be around.
NAM: Some wrap around still from OKC back to the NE, but only around 0.1" more precip if that. Low up near SC MO.

So general thoughts with all this is that the models are decently well aligned. NAM is a bit slower. UKMET is wetter. GFS is kinda in the middle and the one that pushes the dryslot the most. Upper air temps come into play for us then. GFS keeps it above freezing up through almost 2000' until Monday evening. NAM is above freezing to that level up until Noon Monday. So it becomes a battle of who is right. At this point my thinking is that we'll get a good bit of rain through the first part of Monday, but as precip falls it will continue to cool the air column overhead and get us over to snow. This trick is doing it before we get dryslotted. I would love to say we won't, but experience down here shows it happens nearly every time. It also seems once the dryslot works in, the wrap around usually fails to fill in and replace it.

So while I think the advisories are done pretty well with this one, the time when we change over is going to be key in this. Also if we get dryslotted too early that will be all she wrote. Now if this goes to snow sooner than expected, and UKMET is right, then looks like we are all going to get a day or two off work this week simply because no one can get through that much snow. LOL

[Easy180]

Accuweather has it rain thru mid-day turning to snow with little to no accumulation...Then snow in the evening with a total accumulation of 1-3...I like that one

The Weather Channel seems to be using the same model as their graphic shows green for rain in OKC at 5:00 PM tomorrow

[venture]

Accuweather has it rain thru mid-day turning to snow with little to no accumulation...Then snow in the evening with a total accumulation of 1-3...I like that one

The Weather Channel seems to be using the same model as their graphic shows green for rain in OKC at 5:00 PM tomorrow

I won't send the lynch mob after you for even visiting those sites. :-P

[PennyQuilts]

Venture, I apologize for asking you to repeat something I am sure you've said before, but when you use the term dryslot/dryslotted, what happens/what does that mean? Do the temps fall and turn things to ice or is it just dry, or what? We hear the term "dryline" in spring patterns but I don't read this as being related to that. Sorry to be dense.

[venture]

Venture, I apologize for asking you to repeat something I am sure you've said before, but when you use the term dryslot/dryslotted, what happens/what does that mean? Do the temps fall and turn things to ice or is it just dry, or what? We hear the term "dryline" in spring patterns but I don't read this as being related to that. Sorry to be dense.

Dry slot is simply an area of dry air that gets pulled into the system, usually from the Southwest, and cuts off precip mostly. In winter storms this tends to end the accumulating precip but can lead to freezing drizzle in many cases.

[Easy180]

KFOR has the rain change to snow around 3:00 PM for OKC

[kelroy55]

Thanks to Venture and the others for once again giving us the best info possible without all the hype of the news stations. I'm going to gas up the jeep today in hopes of a bunch of snow