Major Southeast Severe Weather Outbreak May 10 and 11th

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Bunkertor
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#41 Postby Bunkertor » Sat May 10, 2008 12:09 pm

Monitoring the Tulsa cell, i make up another bet. Tornado warning within 20 minutes.
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Re:

#42 Postby 6SpeedTA95 » Sat May 10, 2008 12:12 pm

Bunkertor wrote:Monitoring the Tulsa cell, i make up another bet. Tornado warning within 20 minutes.

No doubt it is an impressive cell.
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#43 Postby 6SpeedTA95 » Sat May 10, 2008 12:19 pm

I'm reading over the watch data/probabilities for 293 and its kind of odd they didn't push the MDT further west and north based on the watch data.

Tornadoes
Probability of 2 or more tornadoes
Mod (50%)


Probability of 1 or more strong (F2-F5) tornadoes
Mod (40%)


Wind
Probability of 10 or more severe wind events
Mod (50%)


Probability of 1 or more wind events > 65 knots
Mod (50%)


Hail
Probability of 10 or more severe hail events
Mod (60%)


Probability of 1 or more hailstones > 2 inches
Mod (50%)


Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (80%)



Those are some pretty high probabilities considering the huge bulk of this watch is outside of the MDT area.
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#44 Postby 6SpeedTA95 » Sat May 10, 2008 12:26 pm

Something must have changed immediately after the last SPC convective update because the probabilities on 293 are higher than 292 which makes little sense. I'm sure the areas east of me will get additional watches later but it just strikes me as odd.
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#45 Postby Bunkertor » Sat May 10, 2008 12:26 pm

True - as to the delayed 1630 update, i think they have lots of work to do. 20z will throw over most of the current status
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Re:

#46 Postby 6SpeedTA95 » Sat May 10, 2008 12:32 pm

Bunkertor wrote:True - as to the delayed 1630 update, i think they have lots of work to do. 20z will throw over most of the current status

But thats just it, the 1630 showed no change, at least not graphically on the convective parameters. Maybe they just didn't have time to change the graphic? Seems odd and highly unlikely...but all the probabilities from basically I35 east and south of I35 KS are moderate probabilities.
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#47 Postby HarlequinBoy » Sat May 10, 2008 12:47 pm

At least a strong hailer for Fayetteville, especially northern areas over the next hour.
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#48 Postby CrazyC83 » Sat May 10, 2008 1:36 pm

TORNADO WARNING
ARC015-087-143-101915-
/O.NEW.KTSA.TO.W.0074.080510T1832Z-080510T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
132 PM CDT SAT MAY 10 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHERN CARROLL COUNTY IN NORTHWEST ARKANSAS
CENTRAL MADISON COUNTY IN NORTHWEST ARKANSAS
EASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 215 PM CDT

* AT 129 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES EAST OF
ELKINS...MOVING EAST AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WESLEY...
HINDSVILLE...JAPTON...HUNTSVILLE...AURORA...WITTER...FORUM AND
MARBLE.

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

LAT...LON 3623 9352 3591 9353 3592 9401 3612 9402
TIME...MOT...LOC 1832Z 259DEG 40KT 3600 9393

$$
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#49 Postby CrazyC83 » Sat May 10, 2008 1:37 pm

SEL4

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 294
NWS STORM PREDICTION CENTER NORMAN OK
210 PM EDT SAT MAY 10 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

CENTRAL GEORGIA
SOUTHERN SOUTH CAROLINA
COASTAL WATERS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 210 PM UNTIL
900 PM EDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH OF LA GRANGE
GEORGIA TO 45 MILES NORTHEAST OF SAVANNAH GEORGIA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 292...WW 293...

DISCUSSION...INITIATION OF STORMS IS UNDERWAY...ROOTED WITHIN AN
MODERATE TO STRONGLY UNSTABLE BOUNDARY LAYER WITH CAPE IN EXCESS OF
2000 J/KG. IN THE PRESENCE OF STRONG DEEP LAYER SHEAR...A FEW
SUPERCELLS ARE LIKELY THIS AFTERNOON...PERHAPS GROWING UPSCALE INTO
A LARGER STORM CLUSTER NEAR SOUTH ATLANTIC COASTAL AREAS LATE THIS
AFTERNOON/EARLY THIS EVENING...AIDED BY WEAK IMPULSE ROUNDING FLAT
SUBTROPICAL RIDGE. DESPITE SOMEWHAT MARGINAL LOW-LEVEL
HODOGRAPHS...THE BOUNDARY LAYER APPEARS SUPPORTIVE OF ISOLATED
TORNADOES...IN ADDITION TO THE RISK FOR LARGE HAIL/DAMAGING WIND
GUSTS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28035.


...KERR


SEL4

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 294
NWS STORM PREDICTION CENTER NORMAN OK
210 PM EDT SAT MAY 10 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

CENTRAL GEORGIA
SOUTHERN SOUTH CAROLINA
COASTAL WATERS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 210 PM UNTIL
900 PM EDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH OF LA GRANGE
GEORGIA TO 45 MILES NORTHEAST OF SAVANNAH GEORGIA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 292...WW 293...

DISCUSSION...INITIATION OF STORMS IS UNDERWAY...ROOTED WITHIN AN
MODERATE TO STRONGLY UNSTABLE BOUNDARY LAYER WITH CAPE IN EXCESS OF
2000 J/KG. IN THE PRESENCE OF STRONG DEEP LAYER SHEAR...A FEW
SUPERCELLS ARE LIKELY THIS AFTERNOON...PERHAPS GROWING UPSCALE INTO
A LARGER STORM CLUSTER NEAR SOUTH ATLANTIC COASTAL AREAS LATE THIS
AFTERNOON/EARLY THIS EVENING...AIDED BY WEAK IMPULSE ROUNDING FLAT
SUBTROPICAL RIDGE. DESPITE SOMEWHAT MARGINAL LOW-LEVEL
HODOGRAPHS...THE BOUNDARY LAYER APPEARS SUPPORTIVE OF ISOLATED
TORNADOES...IN ADDITION TO THE RISK FOR LARGE HAIL/DAMAGING WIND
GUSTS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28035.


...KERR


Note: Click for Watch Status Reports.

WOUS64 KWNS 101807
WOU4

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH OUTLINE UPDATE FOR WT 294
NWS STORM PREDICTION CENTER NORMAN OK
210 PM EDT SAT MAY 10 2008

TORNADO WATCH 294 IS IN EFFECT UNTIL 900 PM EDT FOR THE
FOLLOWING LOCATIONS

GAC009-013-021-023-029-031-033-035-043-045-051-053-059-063-067-
073-077-079-081-089-091-093-097-103-107-109-113-121-125-133-135-
141-143-145-149-151-153-159-163-165-167-169-171-175-179-181-183-
189-191-193-197-199-207-209-211-215-217-219-221-223-225-231-233-
235-237-245-247-249-251-255-259-261-263-265-267-269-271-279-283-
285-289-293-297-301-303-307-309-315-317-319-110100-
/O.NEW.KWNS.TO.A.0294.080510T1810Z-080511T0100Z/

GA
. GEORGIA COUNTIES INCLUDED ARE

BALDWIN BARROW BIBB
BLECKLEY BRYAN BULLOCH
BURKE BUTTS CANDLER
CARROLL CHATHAM CHATTAHOOCHEE
CLARKE CLAYTON COBB
COLUMBIA COWETA CRAWFORD
CRISP DEKALB DODGE
DOOLY DOUGLAS EFFINGHAM
EMANUEL EVANS FAYETTE
FULTON GLASCOCK GREENE
GWINNETT HANCOCK HARALSON
HARRIS HEARD HENRY
HOUSTON JASPER JEFFERSON
JENKINS JOHNSON JONES
LAMAR LAURENS LIBERTY
LINCOLN LONG MACON
MARION MCDUFFIE MCINTOSH
MERIWETHER MONROE MONTGOMERY
MORGAN MUSCOGEE NEWTON
OCONEE OGLETHORPE PAULDING
PEACH PIKE POLK
PULASKI PUTNAM RICHMOND
ROCKDALE SCHLEY SCREVEN
SPALDING STEWART SUMTER
TALBOT TALIAFERRO TATTNALL
TAYLOR TELFAIR TOOMBS
TREUTLEN TROUP TWIGGS
UPSON WALTON WARREN
WASHINGTON WEBSTER WHEELER
WILCOX WILKES WILKINSON


SCC003-005-009-011-013-015-019-029-035-037-049-053-065-075-
110100-
/O.NEW.KWNS.TO.A.0294.080510T1810Z-080511T0100Z/

SC
. SOUTH CAROLINA COUNTIES INCLUDED ARE

AIKEN ALLENDALE BAMBERG
BARNWELL BEAUFORT BERKELEY
CHARLESTON COLLETON DORCHESTER
EDGEFIELD HAMPTON JASPER
MCCORMICK ORANGEBURG


AMZ330-350-352-354-110100-
/O.NEW.KWNS.TO.A.0294.080510T1810Z-080511T0100Z/

CW

. ADJACENT COASTAL WATERS INCLUDED ARE

CHARLESTON HARBOR

COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20
NM

COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM

COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM
...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY

ATTN...WFO...FFC...CHS...CAE...





Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.

SAW4
WW 294 TORNADO GA SC CW 101810Z - 110100Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
5S LGC/LA GRANGE GA/ - 45NE SAV/SAVANNAH GA/
..AVIATION COORDS.. 60NM N/S /10SE LGC - 35NE SAV/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28035.

LAT...LON 33938506 33598065 31578065 31908506

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.


Watch 294 Status Report Message has not been issued yet.
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Ed Mahmoud

Re: Major Southeast Severe Weather Outbreak May 10 and 11th

#50 Postby Ed Mahmoud » Sat May 10, 2008 1:39 pm

Warned cell just East of Fayetville developing a pronounced hook...
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#51 Postby CrazyC83 » Sat May 10, 2008 1:47 pm

New watch - almost PDS-worthy, but 50% overall tornado risk is a bit low for such.

SEL5

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 295
NWS STORM PREDICTION CENTER NORMAN OK
140 PM CDT SAT MAY 10 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

SOUTHEAST OKLAHOMA
NORTHEAST TEXAS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 140 PM UNTIL
900 PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST SOUTHWEST OF
ARDMORE OKLAHOMA TO 65 MILES EAST NORTHEAST OF PARIS TEXAS. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 292...WW 293...WW 294...

DISCUSSION...DESTABILIZATION AND LIFT ALONG ADVANCING DRYLINE
THROUGH LATE THIS AFTERNOON SHOULD SPUR ISOLD TO SCTD SUPERCELL
DEVELOPMENT ACROSS PARTS OF SERN OK...THE RED RIVER VALLEY...AND
NERN TX. LOW LEVEL SHEAR AND POTENT INSTABILITY ACROSS THE AREA WILL
BE SUPPORTIVE OF LONG-LIVED MESOCYCLONES IN ANY DISCRETE
STORMS/UPDRAFTS THAT DEVELOP. TORNADO THREAT WITH THIS ACTIVITY
SHOULD INCREASE WITH TIME INTO THE EARLY EVENING. IN ADDITION TO
VERY LARGE/DAMAGING HAIL...A STRONG TORNADO CANNOT BE RULED OUT
GIVEN ANTECEDENT CONDITIONS AND MAGNITUDE OF FORCING/SHEAR FORECAST
TO DEVELOP ACROSS THE WATCH AREA.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27030.
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#52 Postby CrazyC83 » Sat May 10, 2008 1:56 pm

First time ever: CNN has a radar box planted at the lower-right corner of the screen, usually reserved for landfalling hurricanes.
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Re:

#53 Postby 6SpeedTA95 » Sat May 10, 2008 1:58 pm

CrazyC83 wrote:First time ever: CNN has a radar box planted at the lower-right corner of the screen, usually reserved for landfalling hurricanes.

They're going to use it as ammo in their global warming campaign..."Holy poop there's tornadoes in the plains and in the south, this has never happened before!!!!!1111 Global warming is killing us!!!!!!!1"
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#54 Postby CrazyC83 » Sat May 10, 2008 1:59 pm

Coverage from KHBS 40/29 in Fort Smith: http://www.4029tv.com/video/15841175/index.html
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Re: Re:

#55 Postby CrazyC83 » Sat May 10, 2008 2:00 pm

6SpeedTA95 wrote:
CrazyC83 wrote:First time ever: CNN has a radar box planted at the lower-right corner of the screen, usually reserved for landfalling hurricanes.

They're going to use it as ammo in their global warming campaign..."Holy poop there's tornadoes in the plains and in the south, this has never happened before!!!!!1111 Global warming is killing us!!!!!!!1"


I can only imagine what the media response would have been if April 3, 1974 happened with today's media. I tend to ignore national media (i.e. networks, CNN, Fox News) as much as possible - keep everything local and specialized.
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#56 Postby CrazyC83 » Sat May 10, 2008 2:02 pm

MESOSCALE DISCUSSION 0861
NWS STORM PREDICTION CENTER NORMAN OK
0150 PM CDT SAT MAY 10 2008

AREAS AFFECTED...PARTS OF WRN/CNTRL KS

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 101850Z - 102045Z

AN ADDITIONAL WW MAY BE NEEDED...OR WW 293 MAY BE EXTENDED
WESTWARD...BEFORE TOO MUCH LONGER.

MID-LEVEL COOLING/ASCENT IN THE EXIT REGION OF A 50-70+ KT...AND
INTENSIFYING...500 MB JET STREAK IS ALREADY BEGINNING TO SPREAD
THROUGH THE CENTRAL HIGH PLAINS. AND...THIS FORCING APPEARS LIKELY
TO BEGIN AFFECTING THE PRE-FRONTAL AXIS OF MODERATE INSTABILITY
CURRENTLY WRAPPING INTO THE DEEPENING SURFACE CYCLONE OVER CENTRAL
KANSAS BY 20-21Z. AS THIS OCCURS...RAPID INTENSE STORM DEVELOPMENT
APPEARS LIKELY ALONG/AND WEST OF THE I35/135 CORRIDOR OF CENTRAL
KANSAS. MIXED LAYER CAPE OF 1000-2000 J/KG WILL BE SUPPORTIVE OF
VIGOROUS UPDRAFTS IN THE PRESENCE OF INCREASINGLY FAVORABLE DEEP
LAYER SHEAR FOR SUPERCELLS. THOUGH THE STRONGER SOUTHERLY LOW-LEVEL
JET IS OFF TO THE EAST...AND LOW-LEVEL HODOGRAPHS MAY NOT BE
PARTICULARLY LARGE...THE AMBIENT VERTICAL VORTICITY PRESENT NEAR THE
CYCLONE MAY BE SUFFICIENT FOR TORNADIC DEVELOPMENT.

..KERR.. 05/10/2008


ATTN...WFO...TOP...ICT...OUN...GID...DDC...

36899813 37219914 37529974 38139958 38919910 39349847
38969704 37289694
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#57 Postby HarlequinBoy » Sat May 10, 2008 2:07 pm

There's good rotation in east central Madison County, Ar.
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#58 Postby RL3AO » Sat May 10, 2008 2:25 pm

That MDT area is huge.
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#59 Postby CrazyC83 » Sat May 10, 2008 2:32 pm

MESOSCALE DISCUSSION 0862
NWS STORM PREDICTION CENTER NORMAN OK
0223 PM CDT SAT MAY 10 2008

AREAS AFFECTED...SRN AR...NRN LA...WRN MS

CONCERNING...TORNADO WATCH 292...

VALID 101923Z - 102100Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 292 CONTINUES.

WW WILL BE REISSUED FOR ESSENTIALLY THE SAME AREA BY 21Z.

INITIAL FORCING...PERHAPS WITH WEAK SUBTROPICAL IMPULSE...NOW
APPEARS TO BE SHIFTING ACROSS NORTHERN MISSISSIPPI INTO THE UPPER
TENNESSEE VALLEY. BUT...LOWER/MID TROPOSPHERIC WARM LAYER AND
BROADER SCALE SUBSIDENCE BENEATH FLAT LARGE-SCALE SUBTROPICAL RIDGE
HAS SUPPRESSED CONVECTIVE DEVELOPMENT ACROSS THE WATCH AREA TO THIS
POINT. HOWEVER...THE VERY MOIST BOUNDARY LAYER NEAR A SLOWLY
WEAKENING WARM FRONTAL ZONE CONTINUES TO WARM WITH INSOLATION. AND
...MIXED LAYER CAPE HAS INCREASED TO 2000-3000 J/KG.

THE MAIN POLAR IMPULSE IS JUST NOW DIGGING THROUGH THE CENTRAL HIGH
PLAINS. BUT...HEIGHT FALLS AS FAR EAST AS THE LOWER MISSISSIPPI
VALLEY ALREADY APPEAR UNDERWAY. CONVECTIVE INITIATION WITHIN A
FAVORABLY UNSTABLE AND SHEARED ENVIRONMENT FOR SUPERCELLS IS STILL
EXPECTED LATE THIS AFTERNOON...PROBABLY AS EARLY AS 21-22Z ACROSS
SOUTHERN ARKANSAS.

..KERR.. 05/10/2008


ATTN...WFO...MEG...JAN...LZK...SHV...TSA...

35239429 34929325 34659241 34469179 34199092 33838992
33338989 32328989 31518995 31969122 32479289 32979434
34099430 34729430
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#60 Postby CrazyC83 » Sat May 10, 2008 2:33 pm

MESOSCALE DISCUSSION 0863
NWS STORM PREDICTION CENTER NORMAN OK
0228 PM CDT SAT MAY 10 2008

AREAS AFFECTED...CENTRAL AL...FAR ECENTRAL MS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 101928Z - 102130Z

LINE OF TOWERING CU DEVELOPING ALONG EFFECTIVE FRONTAL BOUNDARY OVER
CENTRAL AL...WWD INTO FAR ECENTRAL MS MAY DEVELOP INTO TSTMS WITHIN
THE NEXT 1-2 HRS. AREA IS BEING MONITORED FOR A POSSIBLE WW.

LATEST SATELLITE IMAGERY SHOWS TOWERING CU ALONG A DIFFERENTIAL
HEATING BOUNDARY /EFFECTIVE SFC FRONT/ EXTENDING E-W FROM NEAR
TUPELO IN ECENTRAL MS EWD TO NEAR TALLADEGA IN ECENTRAL AL. SOUTH OF
THIS BOUNDARY...MODERATE AMT OF CLOUD COVER HAS LIMITED
DESTABILIZATION /NOTED BY THE 18Z JAN SOUNDING/. HOWEVER...WHERE THE
TOWERING CU WAS FORMING...SUFFICIENT HEATING HAS NEARLY REMOVED
REMAINING CINH /PER THE 18Z BMX SOUNDING/. MODERATE INSTABILITY
/2500-3000 MUCAPE/ COMBINED WITH MODERATE VERTICAL SHEAR /40-50 KTS
PER THE 18Z SOUNDING/ WILL BE SUPPORTIVE OF SUPERCELL-TYPE STORM
MODE WITH ANY TSTM THAT DOES DEVELOP WITH LARGE HAIL/DMGG WINDS THE
PRIMARY THREATS INITIALLY. GIVEN THE UNCERTAINTY IN THE LARGE SCALE
FORCING AND LIMITED SFC CONVERGENCE TSTM INITIATION AND COVERAGE ARE
SOMEWHAT UNCERTAIN. THUS THE AREA WILL CONTINUE TO BE MONITORED FOR
A POSSIBLE WW.

..CROSBIE.. 05/10/2008


ATTN...WFO...FFC...BMX...HUN...MEG...JAN...

33808615 33948758 33928834 33858945 33058944 33048798
32968616 33168541 33618532
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