May: IAH Does Not Reach 90 During May. 1970 Mark Achieved

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ticka1
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this feature looks to be moving east -once it mive past us where will our continued rain come from??
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SusieinLP
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We had lots of tree limbs down in my neighborhood along with a somewhat mangled streetlight. The light was twisted off by winds and was laying on the ground. Saw some patio furniture blown from someone's yard onto Spencer blvd near the little airport. Crazy winds with that downpour.
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jasons2k
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We need to watch for training. The radar loops show the storms moving almost parallel to the bands now, with one extending from Conroe to San Antonio. If this low stalls, there is going to be a lot of rain.
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srainhoutx
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FLOOD ADVISORY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
221 PM CDT TUE MAY 27 2014

TXC185-201-339-473-477-272115-
/O.NEW.KHGX.FA.Y.0010.140527T1921Z-140527T2115Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON TX-MONTGOMERY TX-HARRIS TX-WALLER TX-GRIMES TX-
221 PM CDT TUE MAY 27 2014

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLOOD ADVISORY FOR...
EAST CENTRAL WASHINGTON COUNTY IN SOUTHEAST TEXAS...
SOUTHWESTERN MONTGOMERY COUNTY IN SOUTHEAST TEXAS...
NORTHWESTERN HARRIS COUNTY IN SOUTHEAST TEXAS...
NORTHERN WALLER COUNTY IN SOUTHEAST TEXAS...
SOUTHEASTERN GRIMES COUNTY IN SOUTHEAST TEXAS...

* UNTIL 415 PM CDT

* AT 220 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
THUNDERSTORMS. THIS WILL CAUSE MINOR FLOODING IN THE ADVISORY
AREA. RAINFALL RATES OF 1 INCH IN ONE HALF HOUR WILL ACCOMPANY THE
STORM AND WILL LIKELY LEAD TO RAPID RUNOFF AND MINOR STREET
FLOODING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SOUTHERN CONROE...TOMBALL...HEMPSTEAD...PRAIRIE VIEW...PINEHURST...
THE WOODLANDS...SPRING...HOCKLEY...OAK RIDGE NORTH...WALLER...
SHENANDOAH...MAGNOLIA...PINE ISLAND...STAGECOACH...WOODLOCH...TODD
MISSION...SPLASHTOWN...CYPRESS...THE WOODLANDS PAVILLION AND HOOKS
AIRPORT.
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srainhoutx
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jasons wrote:We need to watch for training. The radar loops show the storms moving almost parallel to the bands now, with one extending from Conroe to San Antonio. If this low stalls, there is going to be a lot of rain.
Cells are training just S of San Antonio due E. The old outflow boundary is certainly firing additional storms.
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05272014 19Z TX VIS latest.jpg
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srainhoutx
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Report via spotter network of developing rotating wall cloud with strong inflow 9 miles E of Somerset in Bexar County
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srainhoutx
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HGX extends Flash Flood Watch until 7:00 AM tomorrow...

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
358 PM CDT TUE MAY 27 2014

TXZ163-164-176>179-195>200-210>214-226-227-235>238-280500-
/O.EXT.KHGX.FF.A.0003.000000T0000Z-140528T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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-
INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY...
BELLVILLE...BRENHAM...BROOKSHIRE...BRYAN...CALDWELL...CLEVELAND...
COLDSPRING...COLLEGE STATION...COLUMBUS...CONROE...CORRIGAN...
CROCKETT...DAYTON...EAGLE LAKE...EDNA...EL CAMPO...FREEPORT...
FRIENDSWOOD...GALVESTON...GROVETON...HEMPSTEAD...HOUSTON...
HUMBLE...HUNTSVILLE...KATY...LAKE JACKSON...LAKE SOMERVILLE...
LEAGUE CITY...LIBERTY...LIVINGSTON...MADISONVILLE...
MISSOURI CITY...MONT BELVIEU...NAVASOTA...ONALASKA...PALACIOS...
PASADENA...PEARLAND...PIERCE...PRAIRIE VIEW...RICHMOND...
ROSENBERG...SEALY...SHEPHERD...SUGAR LAND...TEXAS CITY...
THE WOODLANDS...TOMBALL...TRINITY...WEIMAR...WHARTON...WILLIS...
WINNIE
358 PM CDT TUE MAY 27 2014

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH WEDNESDAY MORNING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* A PORTION OF SOUTHEAST TEXAS...INCLUDING THE FOLLOWING
COUNTIES...AUSTIN...BRAZORIA...BRAZOS...BURLESON...CHAMBERS...
COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...HOUSTON...
JACKSON...LIBERTY...MADISON...MATAGORDA...MONTGOMERY...POLK...
SAN JACINTO...TRINITY...WALKER...WALLER...WASHINGTON AND
WHARTON.

* THROUGH WEDNESDAY MORNING

* ANOTHER ROUND OF MODERATE TO HEAVY RAINS WILL BE MOVING INTO
THE AREA FROM THE WEST AND NORTHWEST THIS EVENING AND OVERNIGHT.
RAINFALL TOTALS SO FAR TODAY HAVE AVERAGED FROM 1 TO 2 INCHES
WITH ISOLATED AMOUNTS OF 4 INCHES FOR LOCATIONS GENERALLY NORTH
OF INTERSTATE 10. SOUTH OF THE INTERSTATE TOTALS HAVE AVERAGED
AROUND HALF AN INCH WITH ISOLATED TOTALS OF 2 INCHES. ADDITIONAL
RAINFALL AMOUNTS OF 1 TO 3 INCHES THIS EVENING AND OVERNIGHT
COULD LEAD TO FLOODING.

* FLASH FLOODING CAN EASILY OCCUR OVER URBANIZED AREAS WHERE
PONDING LEADING TO FLASH FLOODING IS MORE LIKELY TO OCCUR. IF
ON THE ROAD AND ENCOUNTERING WATER ACROSS THE ROADWAY OF
UNKNOWN DEPTH...TURN AROUND DON'T DROWN! LOW WATER CROSSINGS
AND OTHER LOW LYING AREAS WILL ALSO HAVE A HIGHER RISK OF
FLOODING.
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Rip76
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Seems like the low is moving due East, instead of SE.

Maybe just my eyes playing tricks on me.
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srainhoutx
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Update from Jeff:

Band of moderate to heavy rainfall continues across northern Harris County.

 

Flash Flood Warning for NW Harris County until 630pm

 

Rainfall amounts in the last 3-hrs have averaged 1.0-1.5 inches over northwest Harris County from Waller to west of Spring. 24-hr storm totals range from 4.0-7.0 inches of rainfall from Katy to Tomball and 2.0-4.0 inches across the rest of Harris County. Some street flooding is ongoing over NW Harris County from the recent round of rainfall from including the closure of Telge Rd between Grant and Spring Cypress and FM 2920 is down to 2 lanes between Telge Rd and Calvert.  

 

Channel Conditions:

 

Creeks across the north and western part of Harris County continue to respond to the heavy rainfall.

 

Cypress Creek: creek is high and rising slowly and will continue to rise into the evening hours. Creek may get close to bankfull in the reach from downstream of US 290 to downstream of SH 249 overnight. Additional rainfall could produce levels overbanks in that reach.  

 

Little Cypress Creek: creek is slowly rising and very near bankfull on the upper end of the channel (near Becker Rd)

 

Willow Creek: creek is rising, but remains within banks

 

Langham Creek: falling

 

Bear Creek: falling on lower end, upper end is rising

 

South Mayde Creek: overbanks, falling

 

Forecast:

Training band of rainfall should slowly weaken and shift southward with time this evening with hard hit NW and W Harris County getting a break. New thunderstorms are already developing in the region from SW of Dallas to NW of Austin and we will have to see if this develops into another complex and moves toward the region overnight. Short term guidance is not in very good agreement on how this will play out overnight into early Wednesday morning.

 

With ground saturated additional rainfall will run-off quickly resulting in additional rises on area watersheds.

 
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jasons2k
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I'v had 2.05" overnight and so far today. That gives me 4.38" beginning yesterday and 9.98" for the month of May.
ticka1
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is the rain over for today? when is the next round?
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Katdaddy
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So far my total is 2.01" here in League City. A few isolated small cells have developed over Washington and Austin Counties headed SE but nothing organized. We will need to watch upstream over Central TX to see if additional development occurs overnight.
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Rip76
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That low appears to be crusing to the East.
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srainhoutx
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The U/L should slow down overnight as high pressure to the E sets up more blocking. The global guidance has been in good agreement with the U/L stalling near Shreveport. What happen from there remains to be seen. Most models drop the feature S near the Texas/Louisiana border thru Thursday. I ended up with 6.10 Inches of rain in the 24 hour period ending at 4:00 PM. All in all most areas did do well expect for Galveston and down near Matagorda Bay. Last Update from Jeff for the night...and a good night sleep without warnings going off and power failures like last night in my area...


Rainfall has ended across Harris County this evening.

 

Rainfall amounts:

 

Last 24 hours:

Rainfall has averaged 2.5-3.5 inches over NW Harris County from Waller to The Woodlands northwest of FM 1960. Across the rest of Harris County rainfall has averaged 1.0-2.0 inches.

 

Last 48 hours:

Rainfall has averaged 5.0-7.0 inches over NW Harris County from near Katy to Tomball. Across the rest of Harris County rainfall averaged 3.0-4.0 inches.

 

Maximum 48 hours rainfall recorded was 7.12 inches at Little Cypress Creek at Kluge.

 

Channel Conditions:

 

Rural creeks across the northwest portion of Harris County continue to rise this evening as run-off reaches the mainstem channels.

 

Cypress Creek: rising along the entire channel. Levels range from 2-3 feet below bankfull. A slow rise overnight, but likely remain within banks at most locations. No flooding is expected

 

Little Cypress Creek: bankfull on the upper end at Becker Rd and within banks downstream. Near crest on the upper end. Street flooding ongoing in Ranch Country subdivision west of Becker Rd possible from creek back up through underground drainage system along Palo Duro Dr. No flooding is expected

 

Willow Creek: creek is rising at both gage points and likely nearing crest at the upstream point at SH 249. No flooding is expected.

 

South Mayde Creek: creek remains overbanks at Greenhouse and near bankfull at Peek Rd. Creek has crested at both locations and is falling.

 

Spring Creek: rising, but well within banks

 

Langham Creek: falling and well within banks

 

Bear Creek: falling and within banks

 

West Fork of the San Jacinto River: rising, and may reach bankfull early Wednesday (inflow from Cypress and Spring Creeks)

 

Note: Lake Conroe is above its conservation pool and SJRA has increased its flood gates releases from 410cfs to 2,100 cfs today. SJRA operations indicate without additional rainfall no additional increased releases will be required and they may be able to start decreasing releases on Wednesday.   

 

All other watersheds are within banks and falling.

 

Forecast:

Concern about additional rainfall development overnight has decreased early this evening as activity SW of Dallas has been unable to sustain itself likely due to the stabilization of the air mass from the morning and afternoon activity. Models still indicate some degree of development overnight, but current thinking is that additional rainfall amounts will be on the order of .50 of an inch to possibly 1 inch and it is uncertain as to where and when additional rainfall may occur.

 

HCFCD Actions:

 

HCFCD will remain in monitor mode overnight in the event additional rainfall does develop and also allow ongoing channels to continue their recessions.

 

Clear Creek 2nd Outlet Gates will remain open.

 

Next update will be Wednesday morning

 

Some Selected Rainfall Totals across the region in the last 48 hours:

Wharton: 7.52

El Campo: 7.17

Edna: 6.75

Katy: 6.50

Buffalo Bayou at US 90: 6.24

Fulshear: 5.24

Tomball (Hooks): 5.22

Hobby Airport: 5.01

Sealy: 4.90

Lake Houston Dam: 3.92

Jersey Village: 3.82

BUSH IAH: 3.25

The Woodlands: 3.18

Conroe: 2.82

Pearland: 2.75

Sugar Land: 2.57

Angleton: .83

Galveston: .78

Palacios: .39
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Paul Robison

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
907 PM CDT TUE MAY 27 2014

.UPDATE...
SEE EVENING UPDATE.

&&

.DISCUSSION...
AT 01Z...A WEAK AREA OF LOW PRESSURE WAS LOCATED NEAR DEL RIO WITH
A WEAK TROUGH OF LOW PRESSURE EXTENDING TO THE NORTHEAST ACROSS
CENTRAL TEXAS. NUMEROUS RESIDUAL BOUNDARIES ARE SCATTERED ACROSS
THE EASTERN HALF OF THE STATE. SFC DEW PTS WERE BEGINNING TO MAKE
A SLOW RECOVERY AND WERE NOW APPROACHING 70 DEGREES AGAIN. SHOWERS
CONTINUE TO DEVELOP OVER THE EXTREME NORTHERN PART OF SE TX WHILE
THE SOUTHERN 2/3RDS OF THE CWA IS RAIN FREE. SOME DECENT RAINFALL
TOTALS YET AGAIN TODAY WITH 3-4 INCH TOTALS FROM BURTON TO WALLER
AND 3 TO 6 INCHES FROM CENTRAL TRINITY COUNTY ACROSS NORTHERN POLK
COUNTY. 00Z 850 MB ANALYSIS SHOWS A GOOD SWATH OF 850 MB MSTR
FROM CRP TO LCH. AN 850 MB LOW WAS LOCATED OVER SE OK WITH A WEAK
TROUGH EXTENDING TO THE SW. AT 700 MB...THE DEEPEST MOISTURE WAS
CONFINED TO EXTREME SE TX INTO SW LA AND A 700 MB LOW WAS STACKED
OVER THE 850 MB LOW IN SE OK. THE 500 MB LOW WAS ALSO OVER SE OK
WITH WITH THE DEEPER MOISTURE CONFINED TO SOUTHERN LA. AT 300
MB...WINDS SPLIT OVER EAST TEXAS WITH STRONG DIVERGENCE NOTED OVER
EAST TEXAS AND MOST OF LA.

THUS FAR TONIGHT...THE HRRR AND RAP 13 HAVE INITIALIZED BEST AND
WILL LEAN TOWARD THEIR SOLUTIONS. THE CONVECTION OVER THE FAR
NORTHERN ZONES SHOULD WANE IN THE NEXT HOUR OR SO AND THEN BEGIN
TO REDEVELOP AROUND 08Z AS THE NEXT PIECE OF ENERGY ROTATES AROUND
THE UPPER LOW AND APPROACHES SE TX. THIS AREA OF STORMS WILL
BEGIN TO SLIDE SE AND MERGE WITH STORMS OVER LOUISIANA THAT WILL
LIKELY BE BACKBUILDING ALONG THE TEXAS COAST. BEST RAIN CHANCES
SHOULD BE OVER THE EASTERN HALF AND COASTAL SECTIONS OF SE TXVERY LATE TONIGHT INTO WEDNESDAY MORNING. WILL RAISE POPS AFTER
06Z FOR THE EXTREME SE. WILL FRESHEN UP THE FFA AND EXTEND THE
WATCH TO NOON WEDNESDAY. NEW ZONES OUT 930 PM. 43


Which locations is the forecaster referring to? It kinda sounds like we might (just might) be better off tomorrow than we were today.
skidog40
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Just north of Brownsville? gulf?
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Ptarmigan
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I would not be surprised if there are thunderstorms while we sleep. They can come without warning from what I remember.
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Rip76
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There are a few coming down, North of Austin now.
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Rip76 wrote:There are a few coming down, North of Austin now.

Yea, getting hit hard here up in KCLL. probably close to .75 inches
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It got so dark around 2:30 2:45ish Tuesday afternoon. It looked like nightfall. Really freaky looking. It's good to get some rain though. Especially with the breaks in between to let it soak in. Every little bit helps with summer coming.
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