Flood Advisory
National Weather Service Houston/Galveston TX
556 PM CDT Sun May 24 2020
TXC201-339-250100-
/O.NEW.KHGX.FA.Y.0036.200524T2256Z-200525T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harris TX-Montgomery TX-
556 PM CDT Sun May 24 2020
The National Weather Service in League City has issued a
* Urban and Small Stream Flood Advisory for...
Harris County in southeastern Texas...
Southeastern Montgomery County in southeastern Texas...
* Until 800 PM CDT.
* At 556 PM CDT, Doppler radar indicated heavy rain due to slow
moving thunderstorms. Rainfall rates in excess of 2 inches per
hour are possible. This will cause urban and small stream flooding.
Some locations that will experience flooding include...
Humble, Spring, Kingwood, Greater Greenspoint, Aldine, The
Woodlands, northern Northside / Northline, Oak Ridge North,
Shenandoah, Patton Village, Roman Forest, Woodbranch, Woodloch,
Porter Heights, Bush Intercontinental Airport, Splashtown, Chateau
Woods, Atascocita, Lake Houston and East Little York / Homestead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
MAY 2020
Flood Advisory
National Weather Service Houston/Galveston TX
603 PM CDT Sun May 24 2020
TXC201-291-339-250100-
/O.NEW.KHGX.FA.Y.0037.200524T2303Z-200525T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harris TX-Liberty TX-Montgomery TX-
603 PM CDT Sun May 24 2020
The National Weather Service in League City has issued a
* Urban and Small Stream Flood Advisory for...
Harris County in southeastern Texas...
Northwestern Liberty County in southeastern Texas...
East Central Montgomery County in southeastern Texas...
* Until 800 PM CDT.
* At 603 PM CDT, Doppler radar indicated heavy rain due to slow
moving thunderstorms. Merging cells will cause rain rates in
excess of 2 inches per hour. This will cause urban and small
stream flooding.
Some locations that will experience flooding include...
Cleveland, Splendora, Patton Village, Roman Forest, Woodbranch,
Plum Grove, Tarkington Prairie, Romayor, Moss Hill and Rye.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
National Weather Service Houston/Galveston TX
603 PM CDT Sun May 24 2020
TXC201-291-339-250100-
/O.NEW.KHGX.FA.Y.0037.200524T2303Z-200525T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harris TX-Liberty TX-Montgomery TX-
603 PM CDT Sun May 24 2020
The National Weather Service in League City has issued a
* Urban and Small Stream Flood Advisory for...
Harris County in southeastern Texas...
Northwestern Liberty County in southeastern Texas...
East Central Montgomery County in southeastern Texas...
* Until 800 PM CDT.
* At 603 PM CDT, Doppler radar indicated heavy rain due to slow
moving thunderstorms. Merging cells will cause rain rates in
excess of 2 inches per hour. This will cause urban and small
stream flooding.
Some locations that will experience flooding include...
Cleveland, Splendora, Patton Village, Roman Forest, Woodbranch,
Plum Grove, Tarkington Prairie, Romayor, Moss Hill and Rye.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
1.70" and counting...
We were out and about just before it hit. Some of the darkest skies I've seen. The rain drops at times, just before the bottom dropped-out, were HUGE. It was like water balloons hitting the windshield.
We were out and about just before it hit. Some of the darkest skies I've seen. The rain drops at times, just before the bottom dropped-out, were HUGE. It was like water balloons hitting the windshield.
Flood Advisory
National Weather Service Houston/Galveston TX
712 PM CDT Sun May 24 2020
TXC071-201-291-250215-
/O.NEW.KHGX.FA.Y.0039.200525T0012Z-200525T0215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chambers TX-Harris TX-Liberty TX-
712 PM CDT Sun May 24 2020
The National Weather Service in League City has issued a
* Urban and Small Stream Flood Advisory for...
Northern Chambers County in southeastern Texas...
Harris County in southeastern Texas...
Liberty County in southeastern Texas...
* Until 915 PM CDT.
* At 712 PM CDT, Doppler radar and automated rain gauges indicated
heavy rain due to thunderstorms. This will cause urban and small
stream flooding. Between 1 and 2 inches of rain have fallen.
Some locations that will experience flooding include...
Northern Baytown, Liberty, Dayton, Mont Belvieu, Old
River-Winfree, Ames, Daisetta, Hardin, Kenefick, Cove, Devers,
Dayton Lakes, Lake Houston, Wallisville and Hankamer.
Localized rainfall rates of upwards of 2 inches per hour are
possible over the area. This additional rain will result in minor
flooding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
National Weather Service Houston/Galveston TX
712 PM CDT Sun May 24 2020
TXC071-201-291-250215-
/O.NEW.KHGX.FA.Y.0039.200525T0012Z-200525T0215Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chambers TX-Harris TX-Liberty TX-
712 PM CDT Sun May 24 2020
The National Weather Service in League City has issued a
* Urban and Small Stream Flood Advisory for...
Northern Chambers County in southeastern Texas...
Harris County in southeastern Texas...
Liberty County in southeastern Texas...
* Until 915 PM CDT.
* At 712 PM CDT, Doppler radar and automated rain gauges indicated
heavy rain due to thunderstorms. This will cause urban and small
stream flooding. Between 1 and 2 inches of rain have fallen.
Some locations that will experience flooding include...
Northern Baytown, Liberty, Dayton, Mont Belvieu, Old
River-Winfree, Ames, Daisetta, Hardin, Kenefick, Cove, Devers,
Dayton Lakes, Lake Houston, Wallisville and Hankamer.
Localized rainfall rates of upwards of 2 inches per hour are
possible over the area. This additional rain will result in minor
flooding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
Something you don't see too often: a severe thunderstorm warning that made me think it was a watch at first. Also inside that large warning are three tornado warned storms within it. Meanwhile Austin has been under the same severe thunderstorm warning for over an hour now. That is also something you don't see often.
Needless too say, models did horribly with the convection around SETX today. Though as a result, atmosphere will likely be much more worked over and I don't feel very confident the storms out near San Antonio will make it here into SETX overnight before collapsing Though, this is a very difficult setup to forecast (as we saw today), so certainly don't let your guard down.
Edit to add: I should clarify that I don't believe the intensity of the storms out west will be what they are when they reach the viewing area, but rain and embedded thunderstorms could still be likely.
Needless too say, models did horribly with the convection around SETX today. Though as a result, atmosphere will likely be much more worked over and I don't feel very confident the storms out near San Antonio will make it here into SETX overnight before collapsing Though, this is a very difficult setup to forecast (as we saw today), so certainly don't let your guard down.
Edit to add: I should clarify that I don't believe the intensity of the storms out west will be what they are when they reach the viewing area, but rain and embedded thunderstorms could still be likely.
- Radarscope
Blake
Boomer Sooner
Boomer Sooner
We are out south of Abilene and had a pretty monster system blow through. I see the one down near Austin looks much stronger.
I have my doubts that the northern side of the MCS moving-in from Central Texas will hold together north of the outflow from today's earlier storms over SE Texas, but we will see. There is a short window of recovery, but time is running out quickly.
This run of GFS and CMC are more optimistic about the Hill Country MCS partly holding together overnight and drifting east.
Well, it's only 67 degrees here. Based on that, and the placement of the outflow now over the gulf waters, I'd bed on the MCS falling apart north of I-10.
That said, it is holding together still, and who knows what is going-on a few thousand feet up, above the cool boundary layer. It's definitely a wait and see, nowcasting type of situation.
That said, it is holding together still, and who knows what is going-on a few thousand feet up, above the cool boundary layer. It's definitely a wait and see, nowcasting type of situation.
How's it looking for later afternoon / early evening? We are driving back home from the hill country and curious if we are going to be fighting with it by the time we get in Houston around 6-7
Jeff’s Update at 9am this morning
Another large complex of thunderstorms will likely move across the area tonight.
Air mass has been greatly worked over after yesterday afternoon and the early morning round of storms. Upper level low pressure system is currently forming over NW TX and the morning complex of storms is now moving into Louisiana and well out over the NW Gulf waters. Satellite images show clouds are starting to decrease and expect surface heating to commence by late morning. Convective temperatures are in the low to mid 80’s and these temperatures will be achieved by mid afternoon and we could see some development of showers and thunderstorms at that time. Some of the short range guidance is showing some development late this afternoon on what appears to be a return of southerly winds and surge of moisture off the Gulf of Mexico. Anything that develops this afternoon should be scattered and move off toward the north at a fairly quick rate.
Attention once again turns to the W/NW this evening as yet another strong disturbance rotates around the upper level low and a new complex of thunderstorms will likely form over central TX and move SE overnight. Air mass should have fully recovered by this evening and this next round of storms will pose both a severe and heavy rainfall threat. Complex should arrive into the College Station area around midnight-200am and move off the coast between 600-800am on Tuesday. Damaging winds will be the main threat with this line and SPC has the western portions of SE TX in a slight risk for tonight with the rest of the area in a marginal risk. Storms will likely weaken some as they move toward the coast.
Rainfall Amounts:
An additional 1-3 inches can be expected over the next 24 hours, and even though soils are becoming saturated, this rainfall should be handled. A look at the rivers and watersheds this morning does not reveal any major concern areas. Areas over NE Harris County saw 4-5 inches of rainfall last evening and Cedar Bayou and Jackson Bayou are elevated, but within banks. Heavy rainfall over central Montgomery County yesterday afternoon is translating down the West Fork of the San Jacinto River, but rises are well below flood stage at I-45 and SH 99 and rises at US 59 at this time are expected to remain below flood stage.
Good news is that the upper level low looks to wobble east far enough by mid week to allow a drier and more stable air mass over SE TX reducing rain chances to just scattered and moving us out of this pattern of large thunderstorm complexes each night.
Another large complex of thunderstorms will likely move across the area tonight.
Air mass has been greatly worked over after yesterday afternoon and the early morning round of storms. Upper level low pressure system is currently forming over NW TX and the morning complex of storms is now moving into Louisiana and well out over the NW Gulf waters. Satellite images show clouds are starting to decrease and expect surface heating to commence by late morning. Convective temperatures are in the low to mid 80’s and these temperatures will be achieved by mid afternoon and we could see some development of showers and thunderstorms at that time. Some of the short range guidance is showing some development late this afternoon on what appears to be a return of southerly winds and surge of moisture off the Gulf of Mexico. Anything that develops this afternoon should be scattered and move off toward the north at a fairly quick rate.
Attention once again turns to the W/NW this evening as yet another strong disturbance rotates around the upper level low and a new complex of thunderstorms will likely form over central TX and move SE overnight. Air mass should have fully recovered by this evening and this next round of storms will pose both a severe and heavy rainfall threat. Complex should arrive into the College Station area around midnight-200am and move off the coast between 600-800am on Tuesday. Damaging winds will be the main threat with this line and SPC has the western portions of SE TX in a slight risk for tonight with the rest of the area in a marginal risk. Storms will likely weaken some as they move toward the coast.
Rainfall Amounts:
An additional 1-3 inches can be expected over the next 24 hours, and even though soils are becoming saturated, this rainfall should be handled. A look at the rivers and watersheds this morning does not reveal any major concern areas. Areas over NE Harris County saw 4-5 inches of rainfall last evening and Cedar Bayou and Jackson Bayou are elevated, but within banks. Heavy rainfall over central Montgomery County yesterday afternoon is translating down the West Fork of the San Jacinto River, but rises are well below flood stage at I-45 and SH 99 and rises at US 59 at this time are expected to remain below flood stage.
Good news is that the upper level low looks to wobble east far enough by mid week to allow a drier and more stable air mass over SE TX reducing rain chances to just scattered and moving us out of this pattern of large thunderstorm complexes each night.
Looks like a good chance at another line coming through over night after looking at all the mesoscale models on Levi’s tropicaltidbits site.
A brisk northerly breeze and cool temps persist, with temperatures in the low 70s.
Only 0.63 in of rain yesterday, but good enough for now. A/C off, Sprinklers off. A great Memorial Day.
Only 0.63 in of rain yesterday, but good enough for now. A/C off, Sprinklers off. A great Memorial Day.
Seems like the atmosphere is having a really hard time heating up today. I expected things to be popping again by now.
And yeah that MCS fell apart overnight. I had a light shower and that was it. That's OK though - I had plenty of rain yesterday.
And yeah that MCS fell apart overnight. I had a light shower and that was it. That's OK though - I had plenty of rain yesterday.
Last edited by jasons2k on Mon May 25, 2020 4:24 pm, edited 1 time in total.
Looks like HGX is heavy on the ARW model which brings a rockin bow echo through early morning and NAM also shows it, albeit weaker. We will see!
Looks like the 2nd half of the week may not be as wet as it seemed a couple of days ago, as models are showing the upper level low moving more to the east as the week progresses. After this week the Caribbean/Gulf will have to be watched for possible tropical mischief as a Gyre moves into the Caribbean/Pacific. Right now models are diverging on rather any potential development would stay in the Pacific or develop in the Atlantic, but its just something to watch for now.
Looks like all quiet this evening. Any overnight mischief still being modeled?
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