April Weather Discussion.

[wxman57]

Actually, not temps in the 90s, but heat indices in the 90s. Maybe mid 80s for temps. More great biking weather. Time to head out shortly...

[srainhoutx]

Actually, not temps in the 90s, but heat indices in the 90s. Maybe mid 80s for temps. More great biking weather. Time to head out shortly...

At least I got your attention. Perhaps a May thread would be in order as we transition into Tropical Season.

Our Hurricane Central Forum for those that have not visited...

http://forums.khou.com/viewforum.php?f=4

[Ptarmigan]

When does Houston first reach 90?
http://forums.khou.com/viewtopic.php?f=2&t=65

[biggerbyte]

Man, what a bummer. I was honestly looking forward to experiencing some good and exciting severe thunderstorms last night and early this morning, but it just was not meant to be our turn.

Two things happened, really. The atmosphere stabilized quote a bit as night set in. It was terrible out during the day, but it became quite pleasant after the sun waved bye bye. Then, everyone thought the cap would weaken somewhat, but that just did not happen. Never the less, it was said all along that folks north of us were under the gun. There was actually a line of light to moderate showers pass across our area, but this line just didn't have what it needed to kick up some dust. It is just one of those things we expect in weather. We have to report the possibilities. Had the cap weakened... Safe, than sorry comes to mind.

[srainhoutx]

Update from SPC regarding todays chance of storms...

...TX...
MORNING SURFACE ANALYSIS SHOWS A COLD FRONT SURGING SOUTHWARD ACROSS
WEST/NORTH CENTRAL TX. THIS BOUNDARY WILL LIKELY EXTEND ACROSS
CENTRAL TX BY LATE AFTERNOON...WHERE STRONG DAYTIME HEATING AND
RETURNING GULF MOISTURE WILL COMBINE TO YIELD MLCAPE VALUES OF
1000-1500 J/KG. MODEL GUIDANCE IS IN GOOD AGREEMENT THAT A FEW
STRONG/SEVERE STORMS WILL FORM IN THIS REGION WITH HAIL AND GUSTY
WINDS POSSIBLE IN THE STRONGER CELLS.

06Z WRF Radar Sim suggests that any storms will remain N and W of the Houston Metro area...we shall see...


http://www.meteo.psu.edu/~gadomski/WRFRAD_6z/jloop.html

[wxdata]

12z NAM for IAH is showing a rather stable atmosphere, however the 12z GFS is showing a little more instability for tonight, but not by much...

[wxman57]

Soundings show almost zero moisture at the surface and aloft here. Hard to get blood out of a turnip, or rain out of dry air.

[srainhoutx]

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
408 PM CDT MON APR 26 2010

TXZ163-164-176>179-195>200-210>214-226-227-235>238-272115-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
408 PM CDT MON APR 26 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT

A COLD FRONT DROPPING INTO THE REGION LATE THIS AFTERNOON AND
EVENING WILL COLLIDE WITH A WARM AND UNSTABLE ATMOSPHERE AND COULD
PRODUCE ISOLATED SEVERE THUNDERSTORMS MAINLY BETWEEN THE HOURS OF
5 PM AND MIDNIGHT FOR AREAS TO THE NORTH OF BELLVILLE TO
HUNTSVILLE TO GROVETON LINE. DAMAGING WINDS AND POSSIBLY LARGE
HAIL WOULD BE THE PRIMARY SEVERE WEATHER THREATS. RAINFALL
ACCUMULATIONS OF UP TO ONE INCH MAY BE POSSIBLE.

[wxman57]

Temps up to 88 degrees along the front near where the towering cumulus are. If they can't get going now, there won't be much chance of anything developing as things start cooling down this evening.

[srainhoutx]

Small line of storms trying to fire...

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
421 PM CDT MON APR 26 2010

TXZ157-158-262145-
CORYELL TX-BELL TX-
421 PM CDT MON APR 26 2010

...SIGNIFICANT WEATHER ADVISORY FOR...
WEST CENTRAL BELL COUNTY
SOUTH CENTRAL CORYELL COUNTY

AT 421 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 5 MILES WEST OF COPPERAS COVE...MOVING EAST AT 25
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE COPPERAS COVE...FORT HOOD
AND KILLEEN.

PENNY-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM.

[wxdata]

Rockdale in Milam county reported winds to 61mph and 3/4" hail.

[wxdata]

HGX: Unverified/Non-NWS Report -- from Aaron Dooley (via spotternetwork.org) @ 07:08 PM CDT -- (S) Wind (70mph) [E] -- -- Spotter is 3 miles NE of Hicks, TX (Lee county) [30.565/-96.940] -- Current time. (SN#5296)

[Ptarmigan]

Quite an impressive storm. It came out of nowhere.

[wxdata]

One of the cells seem to have made a right turn and moving SE now. Supercell!

Tops with that cell only 36,000ft.

[wxdata]

Warnings getting closer; first issued out of HGX!

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
716 PM CDT MON APR 26 2010

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
BURLESON COUNTY IN SOUTHEAST TEXAS...

* UNTIL 800 PM CDT

* AT 712 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 16
MILES WEST OF CALDWELL...OR NEAR ROCKDALE...AND MOVING SOUTHEAST AT
25 MPH.

[wxdata]

VIL has decreased with the storm in Burleson County

[wxdata]

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
726 PM CDT MON APR 26 2010

TXZ176-196-270115-
BRAZOS-MADISON-
726 PM CDT MON APR 26 2010

...SIGNIFICANT WEATHER ADVISORY...

AT 720 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 22 MILES WEST OF MADISONVILLE...MOVING EAST AT 40
MPH.

PEA SIZE HAIL...WINDS UP TO 50 MPH...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...NORTH ZULCH...
NORMANGEE...MIDWAY AND MADISONVILLE.

[wxdata]

Radar suggests 2.25" hail in storm near Caldwell.

HGX labeling storm near Caldwell as meso.

[wxdata]

Well I was right about the meso sig!

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
742 PM CDT MON APR 26 2010

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
BURLESON COUNTY IN SOUTHEAST TEXAS...

* UNTIL 815 PM CDT

* AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO THIS TORNADO
WAS LOCATED NEAR CALDWELL... MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IN THE TORNADO WARNING INCLUDE BUT ARE NOT LIMITED TO
SOMERVILLE AND SNOOK.

[wxdata]

pea sized hail in caldwell per Burleson Co SO