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NE OK/ NW AR/ SE KS/ SW MO Fall 2011


JoMo

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Radar echoes are overachieving significantly in this event, quite characteristic of a high ratio event with very cold temps...Blackwell airport in OK has +SN with 20dbz echoes and Enid is 3/4SM with 15-18dbz..

Meanwhile I have 20 dbz and not even a flurry :(

Dry air :(

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What does this mean for nwa?

40/29 TV has an very good blog and it is a nice resource to add to this forum. Accumulation maps posted there. They are going with a NAM/GFS blend. I sort of interpret what they are saying as "hard to figure this one, but the path of least regret is generally the middle ground."

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I do believe I have some flurries here so saturation is occurring.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
926 PM CST TUE FEB 8 2011

...UPDATE...

.DISCUSSION...
INITIAL PHASES OF WINTER STORM UNDERWAY WITH BAND OF LIGHT TO
MODERATE SNOW EXTENDING NEAR THE OK/KS BORDER...AND LIKELY TO
START ACROSS FAR NW ARKANSAS WITHIN THE NEXT FEW HOURS. SNOWFALL
RATIOS ACROSS SOUTHERN KANSAS INTO NORTH CENTRAL OKLAHOMA HAVE
BEEN VERY IMPRESSIVE...MAKING SIGNIFICANT ACCUMULATING SNOW THAT
MUCH MORE LIKELY. THE ONGOING BAND OF SNOW ACROSS NORTHERN
LOCATIONS IS LIKELY TO WEAKEN SOMEWHAT INTO EARLY MORNING...WITH
THE EXPANDING COLD CLOUD TOPS ACROSS TX PANHANDLE MARKING THE ZONE
OF STRONGEST FORCING YET TO OVERSPREAD THE AREA.

THE UPDATED FORECAST WILL WIDEN THE SWATH OF HEAVIER SNOW AMOUNTS
AND INCLUDE PORTIONS OF FAR NW ARKANSAS IN THE 5-8 INCH AMOUNTS.
WILL MAINTAIN A ZONE OF SLIGHTLY HIGHER AMOUNTS ACROSS EAST
CENTRAL OKLAHOMA WHERE LATEST NAM MAINTAINS THE ZONE OF STRONGEST
UPWARD MOTION. ALSO WILL INCREASE WIND GUSTS OVERNIGHT INTO THE
20-30MPH RANGE FOR MOST LOCATIONS GIVEN OBSERVATIONS AND INCLUDE
BLOWING SNOW IN THE FORECAST.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
913 PM CST TUE FEB 8 2011

.UPDATE...
PRIMARY PRECIPITATION BAND HAS SET UP FROM NORTH CENTRAL OKLAHOMA
SOUTHWEST INTO THE TEXAS PANHANDLE WITH THE PRECIPITATION
INCREASING SIGNIFICANTLY IN THE TEXAS PANHANDLE OVER THE LAST
COUPLE OF HOURS. IN THE NORTHERN OKLAHOMA BAND... SNOWFALL
ESTIMATES FROM LAW ENFORCEMENT INCLUDE 3 TO 4 INCHES AT BUFFALO...
4 TO 5 INCHES AT BLACKWELL AND AROUND 2 INCHES IN ENID SO FAR.
ALTHOUGH THE HEAVY SNOW EVENT IS ONGOING ACROSS THE NORTHERN TWO
TIERS OF COUNTIES IN OKLAHOMA... THE HEAVY SNOW BAND OVER THE
TEXAS PANHANDLE WILL MOVE EAST AND BECOME THE PRIMARY FEATURE OVER
WEST CENTRAL AND CENTRAL OKLAHOMA LATE THIS EVENING AND OVERNIGHT.

FARTHER SOUTHEAST... LIGHT RADAR REFLECTIVITIES HAVE CORRESPONDED
WITH SOME REPORTS OF LIGHT SNOW AND SLEET ACROSS CENTRAL AND
SOUTHERN OKLAHOMA. ALTHOUGH THE RADAR MAY BE OVERSHOOTING SOME OF
THE PRECIPITATION WITH FORCING AT SUCH LOW LEVELS.

HAVE MADE SOME RELATIVELY MINOR UPDATES TO THE PACKAGE THIS
EVENING... MAINLY TO UPDATE THE TIMING OF THE PRECIPITATION
/ESPECIALLY IN THE SOUTHEAST/... INCREASE WIND GUSTS /ESPECIALLY
IN THE SOUTHWEST/... AND REDUCE MIN TEMPERATURES IN MANY AREAS.
GIVEN THE SNOWFALL RATES AND EXPECTED EVOLUTION... THE PREDICTED
SNOWFALL AMOUNTS STILL LOOK REASONABLE. .26.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
928 PM CST TUE FEB 8 2011

.UPDATE...
CURRENT WINTER STORM WARNING HEADLINE STILL LOOKS VALID WITH NO
CHANGES PLANNED AT THIS TIME. 00Z NAM-WRF KEEPS WIDESPREAD SNOW
ACROSS THE AREA OVERNIGHT...WITH THE HIGHER SNOWFALL AMOUNTS IN
SOUTH CENTRAL AND SOUTHEAST KS WHERE THE DEEPER ISENTROPIC LIFT
WILL CONTINUE. FRONTOGENESIS BAND REDEVELOPED OVER THE PAST COUPLE
OF HOURS ALONG THE KS/OK BORDER. THIS BAND WILL PRODUCE 1-2 INCH PER
HOUR SNOWFALL RATES BEFORE IT SHIFTS SOUTHWARD OUT OF OUR AREA
LATE TONIGHT OR TOWARD DAYBREAK. THE ONLY REAL ADJUSTMENTS WERE TO
KEEP 100% SNOW CHANCES OVERNIGHT IN THE SOUTH...AND 60-70% IN
CENTRAL KS.

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I'm especially hoping Tulsa can pull off 9" or 10" with this storm, that way they can have their snowiest year on record.

Me too!!! This storm seems to be overperforming EVERYWHERE! I think by the time it's done Tulsa will get that 10'' I wanted!! Just keep the faith!

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people need to stop worrying about this event and the low qpf numbers...look what happened in KS! these maps are impressive! and your throwing out ratios of 30:1....40" with those ratios, do the math. I mentioned this last night, these intense bands are going to overperform by a good amount and thats what your going to get in OK starting in the next few hours.

OK is going to do fine, the radar is going to get more impressive as we go into the overnight hours as fronto forcing increases and the s/w trof continues to move ESE.

The HRRR has a pretty good handle with the ongoing stuff right now

tomorrow morning

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I do believe I have some flurries here so saturation is occurring.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
926 PM CST TUE FEB 8 2011

...UPDATE...

.DISCUSSION...
INITIAL PHASES OF WINTER STORM UNDERWAY WITH BAND OF LIGHT TO
MODERATE SNOW EXTENDING NEAR THE OK/KS BORDER...AND LIKELY TO
START ACROSS FAR NW ARKANSAS WITHIN THE NEXT FEW HOURS. SNOWFALL
RATIOS ACROSS SOUTHERN KANSAS INTO NORTH CENTRAL OKLAHOMA HAVE
BEEN VERY IMPRESSIVE...MAKING SIGNIFICANT ACCUMULATING SNOW THAT
MUCH MORE LIKELY. THE ONGOING BAND OF SNOW ACROSS NORTHERN
LOCATIONS IS LIKELY TO WEAKEN SOMEWHAT INTO EARLY MORNING...WITH
THE EXPANDING COLD CLOUD TOPS ACROSS TX PANHANDLE MARKING THE ZONE
OF STRONGEST FORCING YET TO OVERSPREAD THE AREA.

THE UPDATED FORECAST WILL WIDEN THE SWATH OF HEAVIER SNOW AMOUNTS
AND INCLUDE PORTIONS OF FAR NW ARKANSAS IN THE 5-8 INCH AMOUNTS.
WILL MAINTAIN A ZONE OF SLIGHTLY HIGHER AMOUNTS ACROSS EAST
CENTRAL OKLAHOMA WHERE LATEST NAM MAINTAINS THE ZONE OF STRONGEST
UPWARD MOTION. ALSO WILL INCREASE WIND GUSTS OVERNIGHT INTO THE
20-30MPH RANGE FOR MOST LOCATIONS GIVEN OBSERVATIONS AND INCLUDE
BLOWING SNOW IN THE FORECAST.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
913 PM CST TUE FEB 8 2011

.UPDATE...
PRIMARY PRECIPITATION BAND HAS SET UP FROM NORTH CENTRAL OKLAHOMA
SOUTHWEST INTO THE TEXAS PANHANDLE WITH THE PRECIPITATION
INCREASING SIGNIFICANTLY IN THE TEXAS PANHANDLE OVER THE LAST
COUPLE OF HOURS. IN THE NORTHERN OKLAHOMA BAND... SNOWFALL
ESTIMATES FROM LAW ENFORCEMENT INCLUDE 3 TO 4 INCHES AT BUFFALO...
4 TO 5 INCHES AT BLACKWELL AND AROUND 2 INCHES IN ENID SO FAR.
ALTHOUGH THE HEAVY SNOW EVENT IS ONGOING ACROSS THE NORTHERN TWO
TIERS OF COUNTIES IN OKLAHOMA... THE HEAVY SNOW BAND OVER THE
TEXAS PANHANDLE WILL MOVE EAST AND BECOME THE PRIMARY FEATURE OVER
WEST CENTRAL AND CENTRAL OKLAHOMA LATE THIS EVENING AND OVERNIGHT.

FARTHER SOUTHEAST... LIGHT RADAR REFLECTIVITIES HAVE CORRESPONDED
WITH SOME REPORTS OF LIGHT SNOW AND SLEET ACROSS CENTRAL AND
SOUTHERN OKLAHOMA. ALTHOUGH THE RADAR MAY BE OVERSHOOTING SOME OF
THE PRECIPITATION WITH FORCING AT SUCH LOW LEVELS.

HAVE MADE SOME RELATIVELY MINOR UPDATES TO THE PACKAGE THIS
EVENING... MAINLY TO UPDATE THE TIMING OF THE PRECIPITATION
/ESPECIALLY IN THE SOUTHEAST/... INCREASE WIND GUSTS /ESPECIALLY
IN THE SOUTHWEST/... AND REDUCE MIN TEMPERATURES IN MANY AREAS.
GIVEN THE SNOWFALL RATES AND EXPECTED EVOLUTION... THE PREDICTED
SNOWFALL AMOUNTS STILL LOOK REASONABLE. .26.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
928 PM CST TUE FEB 8 2011

.UPDATE...
CURRENT WINTER STORM WARNING HEADLINE STILL LOOKS VALID WITH NO
CHANGES PLANNED AT THIS TIME. 00Z NAM-WRF KEEPS WIDESPREAD SNOW
ACROSS THE AREA OVERNIGHT...WITH THE HIGHER SNOWFALL AMOUNTS IN
SOUTH CENTRAL AND SOUTHEAST KS WHERE THE DEEPER ISENTROPIC LIFT
WILL CONTINUE. FRONTOGENESIS BAND REDEVELOPED OVER THE PAST COUPLE
OF HOURS ALONG THE KS/OK BORDER. THIS BAND WILL PRODUCE 1-2 INCH PER
HOUR SNOWFALL RATES BEFORE IT SHIFTS SOUTHWARD OUT OF OUR AREA
LATE TONIGHT OR TOWARD DAYBREAK. THE ONLY REAL ADJUSTMENTS WERE TO
KEEP 100% SNOW CHANCES OVERNIGHT IN THE SOUTH...AND 60-70% IN
CENTRAL KS.

all those updates should boost your guys confidence of getting sig amounts lol.

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AREA FORECAST DISCUSSION...UPDATED

NATIONAL WEATHER SERVICE AMARILLO TX

922 PM CST TUE FEB 8 2011

UPDATE

IMPRESSIVE SNOW BAND BEING DRIVEN BY STRONG/DEEP LOW TO MIDLEVEL

FRONTOGENETIC FORCING SUPERIMPOSED ON BROADER SCALE LIFT AHEAD OF

MID/UPPER LEVEL SHORTWAVE TROUGH CONTINUES TO WORK EAST/SOUTHEAST

ACROSS THE CWA THIS EVENING. NUMEROUS PHONE CALLS ACROSS THE AREA

SUGGEST SNOWFALL RATES AROUND 2 INCHES/HOUR WITHIN THIS BAND. THIS

SNOW BAND WILL CONTINUE TO GRADUALLY WORK SOUTHEAST THROUGH THE

REMAINDER OF THE EVENING INTO THE OVERNIGHT HOURS...WITH SNOW

TAPERING OFF/ENDING FROM THE NORTHWEST AS FRONTOGENETIC FORCING AND

ZONE OF ISENTROPIC LIFT ABOVE THE FRONTAL ZONE CONTINUES TO GRADUALLY

SHIFT SOUTHEAST.

ARCTIC SURFACE HIGH CONTINUES TO BUILD SOUTH INTO THE PANHANDLES.

STRONG PRESSURE GRADIENT IS SUPPORTING NORTH WINDS OF 30-35 MPH WITH

GUSTS OF 40-50 MPH AT 03Z ACROSS THE SOUTHERN TX PANHANDLE...BUT

FORTUNATELY WINDS HAVE BEGUN TO DECREASE TO THE NORTH AS SURFACE HIGH

BUILDS IN...WEAKENING THE GRADIENT. GENERALLY LOOKING AT SUSTAINED

WINDS AROUND 20 MPH WITH GUSTS TO 30 MPH ACROSS THE OK PANHANDLE AND

NORTHERN TX PANHANDLE ATTM. THIS TREND WILL CONTINUE OVERNIGHT WITH

WINDS GRADUALLY WEAKENING FROM NORTH TO SOUTH AS SURFACE HIGH BUILDS

IN. HOWEVER...NEAR WHITEOUT TO AT TIMES WHITEOUT CONDITIONS CONTINUE

ATTM OVER MUCH OF THE AREA IN THE SNOW/BLOWING SNOW.

UPDATE ALREADY SENT OUT WITH ADJUSTED 6-HOURLY SNOWFALL GRIDS TO

ACCOUNT FOR EARLIER REPORTED SNOWFALL AND CURRENT TRENDS. STILL THE

END RESULT COMES OUT SIMILAR TO PREVIOUS FORECAST...WITH TOTAL

ACCUMULATIONS GENERALLY IN THE 3 TO 7 INCH RANGE...ALTHOUGH SOME

LOCALLY HIGHER AMOUNTS CERTAINLY NOT OUT OF THE QUESTION IN AREAS OF

STRONG/PERSISTENT BANDING. ALSO ADJUSTED TEMPS AND WIND CHILLS FOR

TONIGHT INTO WEDNESDAY MORNING. WIND CHILLS IN THE 15 TO 30 BELOW

RANGE TO CONTINUE INTO WEDNESDAY MORNING.

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