April Weather Discussion.

[Houstonkid]

Thanks! anything from CRP? still a cap there? if so is it safe to interpolate between the 2 and i can assume i can sleep thru the night without being woke up??

[srainhoutx]

Interesting to note storm development near Junction.

[Ptarmigan]

Interesting to note storm development near Junction.

I notice that too. I think that could be our storm.

[srainhoutx]

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CDT FRI APR 23 2010

TXZ171>173-183>194-202>209-217>225-228-240430-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
INCLUDING THE CITIES OF...LLANO...BURNET...GEORGETOWN...DEL RIO...
ROCKSPRINGS...LEAKEY...KERRVILLE...BANDERA...FREDERICKSBURG...
BOERNE...BLANCO...SAN MARCOS...AUSTIN...BASTROP...GIDDINGS...
BRACKETTVILLE...UVALDE...HONDO...SAN ANTONIO...NEW BRAUNFELS...
SEGUIN...LOCKHART...LA GRANGE...EAGLE PASS...CRYSTAL CITY...
PEARSALL...PLEASANTON...FLORESVILLE...KARNES CITY...GONZALES...
CUERO...HALLETTSVILLE...CARRIZO SPRINGS
855 PM CDT FRI APR 23 2010

...GOOD CHANCE OF RAIN FROM SHOWERS AND THUNDERSTORMS TONIGHT...

AN AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING FROM NEAR DEL RIO
TO THE WESTERN HILL COUNTRY THIS EVENING IS EXPECTED TO CONTINUE
FORMING INTO AN AREA OF RAIN...WITH SHOWERS AND THUNDERSTORMS
TONIGHT. THE SHOWERS AND THUNDERSTORMS WILL FORM IN ADVANCE OF
AND ALONG THE PACIFIC COLD FRONT.

AS THE PACIFIC FRONT MOVES ACROSS SOUTH CENTRAL TEXAS FROM THE
WEST TONIGHT...SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOP AND MOVE TO THE EAST AND NORTHEAST AT 30 TO 40 MPH.
SOME OF THESE STORMS COULD BECOME SEVERE...PRODUCING HAIL
AND BRIEF STRONG WIND GUSTS. THE MAIN THREAT AREA COULD
FORM NEAR TO JUST WEST OF STATE HIGHWAY 16 IN THE
TEXAS HILL COUNTRY...AND THEN EXPAND TO NEAR AND EAST OF
INTERSTATE 35 TONIGHT.

THE SHOWERS AND THUNDERSTORMS WILL MOVE EAST OF THE AREA
SATURDAY MORNING. DRY WEST AND NORTHWEST WINDS AT 15 TO 25
MPH...WITH GUSTS...ARE EXPECTED IN WAKE OF THE FAST MOVING
PACIFIC COLD FRONT ON SATURDAY...AS A DRY RIDGE OF HIGH PRESSURE
BUILDS OVER SOUTH CENTRAL TEXAS. CLEAR SKIES AND COOL OVERNIGHT
LOWS FOR LATE APRIL ARE EXPECTED ON SATURDAY NIGHT...WITH LIGHT
WEST AND NORTHWEST WINDS.

[wxdata]

HGX issues Tornado Watch for Austin, Brazos, Burleson, Colorado, Grimes, Houston, Madison, Montgomery, Polk, San Jacinto, Trinity, Walker, Waller, Washington [TX] till Apr 24, 6:00 AM CDT

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 86
NWS STORM PREDICTION CENTER NORMAN OK
935 PM CDT FRI APR 23 2010

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

SOUTH CENTRAL AND EAST CENTRAL TEXAS

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 935 PM
UNTIL 600 AM CDT.

TORNADOES...HAIL TO 2 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 110 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES WEST OF COLLEGE
STATION TEXAS TO 55 MILES SOUTH SOUTHWEST OF HONDO TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).

DISCUSSION...TSTMS NOW FORMING E OF THE TX BIG BEND EXPECTED TO
INCREASE AND MOVE/DEVELOP EWD THROUGH EARLY SAT AS SW TX UPR TROUGH
CONTINUES NEWD. STRENGTH OF WIND FIELD ON SE SIDE OF TROUGH AND
INCREASING QUALITY OF LOW LVL MOISTURE INFLOW WITH EWD EXTENT
SUGGEST POTENTIAL FOR EMBEDDED SUPERCELLS AS THE STORMS MERGE INTO
BROKEN BANDS/CLUSTERS. THE SUPERCELLS MAY PRODUCE TORNADOES IN
ADDITION TO LARGE HAIL AND DMGG WIND.

[texoz]

A storm about 100 miles west of San Antonio was producing 4-inch hail according to radar estimates. Now down to 3-inch.

VIL is 64

That's a nasty looking complex of storms forming.

http://www.wunderground.com/radar/radbl ... rainsnow=0

[wxdata]

What's caught my eye- either EWX is overestimating rotation, or EVERY thunderstorm west of San Antonio has some form of rotation!

[Paul]

Some of those storms got some tops to them...65-70DBZ...ouch..Uvalde just got hammered. Going to be a bumpy night folks...

[wxdata]

Paul, tops (or how high into the atmosphere the clouds climb) on those storms are running around 37,000 ft. or less. DBZ relates to signal return strength.

[sleetstorm]

A storm about 100 miles west of San Antonio was producing 4-inch hail according to radar estimates. Now down to 3-inch.

VIL is 64

That's a nasty looking complex of storms forming.

http://www.wunderground.com/radar/radbl ... rainsnow=0

Correct if I am wrong, texoz, but is four inch hail the size of softballs & three inch hail the size of baseballs?

SS

[wxdata]

Looks like an MCS is trying to develop out west rather than an actual squall line.

[sleetstorm]

Some of those storms got some tops to them...65-70DBZ...ouch..Uvalde just got hammered. Going to be a bumpy night folks...

Is that a good indication of a Supercell Thunderstorm, Paul, or no? Does that mean that those thunderstorms that have tops on them are Supercell Thunderstorms or no?

[sleetstorm]

Looks like an MCS is trying to develop out west rather than an actual squall line.

Is that acronym for Meso Cyclone something because I forgot what the letter "S" stood for. Please help me out wxdata.

[sleetstorm]

Some of those storms got some tops to them...65-70DBZ...ouch..Uvalde just got hammered. Going to be a bumpy night folks...

And a rough morning to start the last weekend of April at that, as well.

[ticka1]

Will any of these storm complex affect us here in Houston area?

[wxdata]

Looks like an MCS is trying to develop out west rather than an actual squall line.

Is that acronym for Meso Cyclone something because I forgot what the letter "S" stood for. Please help me out wxdata.

Mesoscale Convective System

http://en.wikipedia.org/wiki/Mesoscale_ ... ive_system

[wxdata]

Will any of these storm complex affect us here in Houston area?

All the storm west of San Antonio are all moving northeastward. On that track they'd stay well north of here. We'd have to get more storms developing to the southwest, or 'homegrown' storms, or an actual squall line that extends this far south.

[ticka1]

Will any of these storm complex affect us here in Houston area?

All the storm west of San Antonio are all moving northeastward. On that track they'd stay well north of here. We'd have to get more storms developing to the southwest, or 'homegrown' storms, or an actual squall line that extends this far south.

Good means I don't have to wake up several times during the night and check the radar or listen for storms. From what I see a squall line hasn't developed yet has it?

[wxdata]

Good means I don't have to wake up several times during the night and check the radar or listen for storms. From what I see a squall line hasn't developed yet has it?

Nope, but the night is still young....

[wxdata]

GRK radar seems to be back up, but is 'flacky.'

OUS64 KFWD 232342
FTMGRK
Message Date: Apr 23 2010 23:42:19

THE GRANGER RADAR IS BACK IN OPERATIONAL MODE...HOWEVER THE SYSTEM IS UNSTABLE A
ND DATA MAY BE UNRELIABLE AT TIMES...PARTICULARLY THE VELOCITY DATA. PARTS ARE
ON ORDER TO RESOLVE THE REMAINING ISSUES. THE RADAR WILL OPERATE IN VCP 21 UNTI
L FURTHER NOTICE. /DUNN/