July 2014: Stalled Front/ Rain Chnaces To End July
So, it was a race to the finish. It looked like July was going to come under 2" here at my place, then last night around 10:00 I got a nice storm that lasted for about 30 minutes. I picked-up .81", bringing my July total up to 2.67". It also was the most rain in one day since June 26th.
- srainhoutx
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- Location: Maggie Valley, NC
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Morning Update from Jeff...(Note some of the rainfall totals likely occurred after mid night)...I was sound asleep.
Impressive rainfall event unfolded overnight across SE TX with upwards of 5-6.5 inches in some locations.
A slow moving band of thunderstorms ahead of a ill defined frontal boundary coupled with deep tropical moisture produced some impressive short term rainfall rates overnight. Flash flooding occurred in a corridor generally along US 59 from downtown Houston to Lake Livingston. Flooding of low lying areas and roadways continues in and around the north side of metro Houston with some locations still deeply inundated and impassable.
HCFCD Flood Warning gages recorded the following rainfall rates overnight:
Maximum 5 min rate: .72 of an inch (2-yr rainfall)
Maximum 15-min rate: 1.56 inches (10-yr rainfall)
Maximum 1-hr rate: 4.16 inches (50-yr to 100-yr rainfall)
Maximum 3-hr rate: 6.24 inches (50-yr to 100-yr rainfall)
The hardest hit area was in the corridor from Aldine to Humble where maximum rainfall of 6.56 inches was recorded.
Forecast:
Activity has pushed toward the coastal counties and currently extends from Jackson County to Galveston County in a much weakened state compared to earlier. Ill defined frontal boundary is located somewhere between Houston and College Station based on dewpoints. Not sure how worked over the air mass is across the region as much of the area SW of Houston was not overly hard hit and suspect it will not take much to recharge the air mass. Dry air will attempt to move in from the north, but not sure just how far south it will make it. With the boundary in place across the region and daytime heating expect additional development this afternoon especially near the coast and possibly as far inland as I-10.
Boundary will linger and wave back and forth across the coastal areas this weekend so rain chances will remain. Luckily moisture levels are not expected to be as deep as overnight so rainfall rates will likely not be as intense as seen overnight. Still hourly rates of 1-3 inches will be possible under any slow moving strong convection.
Impressive rainfall event unfolded overnight across SE TX with upwards of 5-6.5 inches in some locations.
A slow moving band of thunderstorms ahead of a ill defined frontal boundary coupled with deep tropical moisture produced some impressive short term rainfall rates overnight. Flash flooding occurred in a corridor generally along US 59 from downtown Houston to Lake Livingston. Flooding of low lying areas and roadways continues in and around the north side of metro Houston with some locations still deeply inundated and impassable.
HCFCD Flood Warning gages recorded the following rainfall rates overnight:
Maximum 5 min rate: .72 of an inch (2-yr rainfall)
Maximum 15-min rate: 1.56 inches (10-yr rainfall)
Maximum 1-hr rate: 4.16 inches (50-yr to 100-yr rainfall)
Maximum 3-hr rate: 6.24 inches (50-yr to 100-yr rainfall)
The hardest hit area was in the corridor from Aldine to Humble where maximum rainfall of 6.56 inches was recorded.
Forecast:
Activity has pushed toward the coastal counties and currently extends from Jackson County to Galveston County in a much weakened state compared to earlier. Ill defined frontal boundary is located somewhere between Houston and College Station based on dewpoints. Not sure how worked over the air mass is across the region as much of the area SW of Houston was not overly hard hit and suspect it will not take much to recharge the air mass. Dry air will attempt to move in from the north, but not sure just how far south it will make it. With the boundary in place across the region and daytime heating expect additional development this afternoon especially near the coast and possibly as far inland as I-10.
Boundary will linger and wave back and forth across the coastal areas this weekend so rain chances will remain. Luckily moisture levels are not expected to be as deep as overnight so rainfall rates will likely not be as intense as seen overnight. Still hourly rates of 1-3 inches will be possible under any slow moving strong convection.
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey
Member: National Weather Association
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- srainhoutx
- Site Admin
- Posts: 19616
- Joined: Tue Feb 02, 2010 2:32 pm
- Location: Maggie Valley, NC
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The July Climate Report for NWS Houston/Galveston is out and we did not hit 100F during this past month!
Code: Select all
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
403 PM CDT FRI AUG 1 2014
...JULY 2014 ENDED SLIGHTLY COOLER AND DRIER THAN NORMAL...
A SUM OF THE AVERAGE TEMPERATURE DEPARTURES ACROSS SOUTHEAST TEXAS
SHOWS THAT THE MONTH OF JULY ENDED UP SLIGHTLY COOLER THAN NORMAL.
CONVECTIVE RAINFALL EVENTS BROUGHT A MIX OF DRIER AND WETTER THAN
NORMAL CONDITIONS...ALTHOUGH ONLY FOUR OF THE CLIMATE SITES RECEIVED
WETTER THAN NORMAL RAINFALL.
ONE UNUSUAL FACT FOR THE YEAR THROUGH JULY 31ST IS THAT NONE OF THE
FOUR FIRST-ORDER CLIMATE SITES HAVE YET TO HIT THE 100 DEGREE MARK.
HOW ODD IS THIS? FOR THE 30-YEAR PERIOD OF 1981 TO 2010...COLLEGE
STATION NORMALLY REACHES 100 DEGREES BY JULY 21ST WITH THE AVERAGE
NUMBER OF 100-DEGREE DAYS BEING 5.7 DAYS THROUGH JULY 31ST. THE CITY
OF HOUSTON NORMALLY EXPERIENCES A 100 DEGREE DATE BY JULY 24TH...WITH
THE AVERAGE BEING 1.8 THROUGH JULY 31ST.
EVEN THOUGH BELOW NORMAL RAINFALL WAS RECORDED AT MOST OF THE CLIMATE
SITES...HEAVIER RAINFALL FELL OVER COLLEGE STATION...HUNTSVILLE...
INTERCONTINENTAL AIRPORT...AND LEAGUE CITY. THE AVERAGE RAINFALL
DEPARTURES FOR THESE SITES RANGED FROM +0.53 TO +4.58 INCHES. DRIEST
CONDITIONS WERE EXPERIENCED ALONG THE COASTAL AREAS...ESPECIALLY
BETWEEN SUGAR LAND AND PALACIOS. OVERALL RAINFALL AMOUNTS WERE ENOUGH
TO EASE MOST OF SOUTHEAST TEXAS OUT OF DROUGHT. HOWEVER...THE JULY
31ST DROUGHT MONITOR REPORTED ABNORMALLY DRY CONDITIONS ACROSS
BURLESON...NORTHERN AUSTIN...WESTERN COLORADO...MOST OF JACKSON...AND
MOST OF MATAGORDA COUNTIES. MODERATE DROUGHT CONDITIONS WERE REPORTED
NEAR MATAGORDA BAY ACROSS FAR SOUTHERN JACKSON AND WESTERN MATAGORDA
COUNTIES.
THE FOLLOWING IS A LIST OF SOME HIGH AND LOW EXTREMES RECORDED AT
THE FIRST- AND SECOND-ORDER CLIMATE SITES. NOTE SOME OF THESE ARE
THE LAST DATE OF OCCURRENCE FOR EACH SITE. SEE THE TABLE FOLLOWING
THIS LIST FOR MORE DETAILS.
- WARMEST DAILY AVERAGE TEMPERATURE...88 AT IAH ON THE 28TH
88 AT GLS ON THE 27TH
88 AT PSX ON THE 31ST
- COOLEST DAILY AVERAGE TEMPERATURE...76 AT CLL ON THE 18TH
76 AT UTS ON THE 19TH
- COLDEST DAILY MINIMUM TEMPERATURE...68 AT CXO ON THE 30TH
68 AT UTS ON THE 20TH
- WARMEST DAILY MAXIMUM TEMPERATURE...99 AT IAH ON THE 28TH
- HIGHEST DAILY RAINFALL..............4.55 AT CLL ON THE 17TH
THE FOLLOWING TABLE GIVES INDIVIDUAL SITE TEMPERATURE AND RAINFALL
EXTREMES FOR THE MONTH MEASURED AT THE FIRST- AND SECOND-ORDER
CLIMATE STATIONS...
DAILY MAX DAILY MIN DAILY AVERAGE TEMP MAX RNFALL
SITE TMP DATES TMP DATES MAX DATES MIN DATES PCPN DATES
IAH 99 28 72 30** 88 28 79 19 3.97 31
GLS 94 29 75 19 88 27 81 19## 0.70 18
CLL 97 28* 69 20 87 27# 76 18 4.55 17
HOU 97 28 73 6 87 28# 81 19## 0.43 23
CXO 96 28 68 30** 86 28 77 19 0.74& 18
UTS 96 14* 68 20 87 14 76 19## 1.67 17
DWH 96 28* 71 4 87 21 79 19 1.14 31
SGR 98 28 71 11 87 27# 81 6## 0.91 24
LBX 95 29 69 12** 84 29# 80 11## 2.12 20
PSX 93 25* 71 4 88 31# 81 18## 1.00 4
LVJ 97 28 74 19** 87 29# 81 18 1.17 23
HGX 97 28 69 3 87 28 78 18 2.42 23
NOTES...THE LAST DATE OF OCCURRENCE IS NOTED IN THE TABLE. OTHER DATES
THAT TIED ARE AS FOLLOWS...
* FOR HIGH TEMPERATURES...
CLL - 9TH...13TH...14TH...AND 27TH
UTS - 9TH
DWH - 21ST...25TH...AND 27TH
PSX - 21ST
** FOR LOW TEMPERATURES...
IAH - 4TH...6TH...11TH...AND 19TH
CXO - 6TH AND 11TH
LBX - 9TH AND 11TH
LVJ - 2ND...3RD...6TH...9TH...11TH...AND 12TH
# FOR MAX DAILY AVERAGE TEMPERATURES...
CLL - 14TH
HOU - 21ST AND 22ND
SGR - 20TH AND 21ST
LBX - 20TH...21ST...AND 22ND
PSX - 21ST
LVJ - 21ST AND 28TH
## FOR MIN DAILY AVERAGE TEMPERATURES...
GLS - 18TH
HOU - 6TH AND 18TH
UTS - 18TH
SGR - 5TH
LBX - 6TH AND 9TH
PSX - 6TH AND 10TH
& FOR MAX RAINFALL
CXO - 17TH
THE FOLLOWING TABLE LISTS THE MONTHLY TEMPERATURE AND RAINFALL DATA
FOR FIRST- AND SECOND-ORDER CLIMATE SITES ACROSS SOUTHEAST TEXAS...
JULY 2014 DATA
AVE AVE MONTHLY AVE MONTHLY YEAR-TO-DATE
SITE HIGH LOW DAILY DEP RAIN DEP RAIN DEP
IAH 93.1 74.3 83.7 -0.7 5.40 +1.61 26.65 -1.46
GLS 90.2 79.3 84.8 +0.3 1.08 -2.72 11.30 -15.49
CLL 92.8 73.6 83.2 -1.5 6.72 +4.58 22.36 -0.48
HOU 92.2 75.6 83.9 +0.1 1.26 -3.40 21.08 -8.96
CXO 91.3 71.5 81.4 -1.2 2.91 -0.52 26.05 +0.92
UTS 91.8 73.4 82.6 -1.5 4.40 +1.02 25.62 -0.36
DWH 92.5 74.0 83.2 +1.1 3.42 -0.42 25.77 -1.62
SGR 93.4 74.5 84.0 +0.4 2.68 -1.68 23.80 -3.60
LBX 90.9 72.3 81.6 -0.7 4.21 -0.35 18.37 -9.28
PSX 90.6 77.9 84.3 +0.3 1.75 -3.01 9.46 -15.32
LVJ 92.4 75.7 84.0 +1.0 3.00 -1.71 19.07 -9.68
HGX 91.2 74.7 82.9 +0.9 5.11 +0.53 22.28 -7.31
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey
Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
Member: National Weather Association
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Twitter @WeatherInfinity
Reminds me of 2002. Coastal areas were dry, while inland areas were wetter. Fall 2002 was very wet. Tropical Storm Fay paid a visit in September 2002.srainhoutx wrote:The July Climate Report for NWS Houston/Galveston is out and we did not hit 100F during this past month!
Code: Select all
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 403 PM CDT FRI AUG 1 2014 ...JULY 2014 ENDED SLIGHTLY COOLER AND DRIER THAN NORMAL... A SUM OF THE AVERAGE TEMPERATURE DEPARTURES ACROSS SOUTHEAST TEXAS SHOWS THAT THE MONTH OF JULY ENDED UP SLIGHTLY COOLER THAN NORMAL. CONVECTIVE RAINFALL EVENTS BROUGHT A MIX OF DRIER AND WETTER THAN NORMAL CONDITIONS...ALTHOUGH ONLY FOUR OF THE CLIMATE SITES RECEIVED WETTER THAN NORMAL RAINFALL. ONE UNUSUAL FACT FOR THE YEAR THROUGH JULY 31ST IS THAT NONE OF THE FOUR FIRST-ORDER CLIMATE SITES HAVE YET TO HIT THE 100 DEGREE MARK. HOW ODD IS THIS? FOR THE 30-YEAR PERIOD OF 1981 TO 2010...COLLEGE STATION NORMALLY REACHES 100 DEGREES BY JULY 21ST WITH THE AVERAGE NUMBER OF 100-DEGREE DAYS BEING 5.7 DAYS THROUGH JULY 31ST. THE CITY OF HOUSTON NORMALLY EXPERIENCES A 100 DEGREE DATE BY JULY 24TH...WITH THE AVERAGE BEING 1.8 THROUGH JULY 31ST. EVEN THOUGH BELOW NORMAL RAINFALL WAS RECORDED AT MOST OF THE CLIMATE SITES...HEAVIER RAINFALL FELL OVER COLLEGE STATION...HUNTSVILLE... INTERCONTINENTAL AIRPORT...AND LEAGUE CITY. THE AVERAGE RAINFALL DEPARTURES FOR THESE SITES RANGED FROM +0.53 TO +4.58 INCHES. DRIEST CONDITIONS WERE EXPERIENCED ALONG THE COASTAL AREAS...ESPECIALLY BETWEEN SUGAR LAND AND PALACIOS. OVERALL RAINFALL AMOUNTS WERE ENOUGH TO EASE MOST OF SOUTHEAST TEXAS OUT OF DROUGHT. HOWEVER...THE JULY 31ST DROUGHT MONITOR REPORTED ABNORMALLY DRY CONDITIONS ACROSS BURLESON...NORTHERN AUSTIN...WESTERN COLORADO...MOST OF JACKSON...AND MOST OF MATAGORDA COUNTIES. MODERATE DROUGHT CONDITIONS WERE REPORTED NEAR MATAGORDA BAY ACROSS FAR SOUTHERN JACKSON AND WESTERN MATAGORDA COUNTIES. THE FOLLOWING IS A LIST OF SOME HIGH AND LOW EXTREMES RECORDED AT THE FIRST- AND SECOND-ORDER CLIMATE SITES. NOTE SOME OF THESE ARE THE LAST DATE OF OCCURRENCE FOR EACH SITE. SEE THE TABLE FOLLOWING THIS LIST FOR MORE DETAILS. - WARMEST DAILY AVERAGE TEMPERATURE...88 AT IAH ON THE 28TH 88 AT GLS ON THE 27TH 88 AT PSX ON THE 31ST - COOLEST DAILY AVERAGE TEMPERATURE...76 AT CLL ON THE 18TH 76 AT UTS ON THE 19TH - COLDEST DAILY MINIMUM TEMPERATURE...68 AT CXO ON THE 30TH 68 AT UTS ON THE 20TH - WARMEST DAILY MAXIMUM TEMPERATURE...99 AT IAH ON THE 28TH - HIGHEST DAILY RAINFALL..............4.55 AT CLL ON THE 17TH THE FOLLOWING TABLE GIVES INDIVIDUAL SITE TEMPERATURE AND RAINFALL EXTREMES FOR THE MONTH MEASURED AT THE FIRST- AND SECOND-ORDER CLIMATE STATIONS... DAILY MAX DAILY MIN DAILY AVERAGE TEMP MAX RNFALL SITE TMP DATES TMP DATES MAX DATES MIN DATES PCPN DATES IAH 99 28 72 30** 88 28 79 19 3.97 31 GLS 94 29 75 19 88 27 81 19## 0.70 18 CLL 97 28* 69 20 87 27# 76 18 4.55 17 HOU 97 28 73 6 87 28# 81 19## 0.43 23 CXO 96 28 68 30** 86 28 77 19 0.74& 18 UTS 96 14* 68 20 87 14 76 19## 1.67 17 DWH 96 28* 71 4 87 21 79 19 1.14 31 SGR 98 28 71 11 87 27# 81 6## 0.91 24 LBX 95 29 69 12** 84 29# 80 11## 2.12 20 PSX 93 25* 71 4 88 31# 81 18## 1.00 4 LVJ 97 28 74 19** 87 29# 81 18 1.17 23 HGX 97 28 69 3 87 28 78 18 2.42 23 NOTES...THE LAST DATE OF OCCURRENCE IS NOTED IN THE TABLE. OTHER DATES THAT TIED ARE AS FOLLOWS... * FOR HIGH TEMPERATURES... CLL - 9TH...13TH...14TH...AND 27TH UTS - 9TH DWH - 21ST...25TH...AND 27TH PSX - 21ST ** FOR LOW TEMPERATURES... IAH - 4TH...6TH...11TH...AND 19TH CXO - 6TH AND 11TH LBX - 9TH AND 11TH LVJ - 2ND...3RD...6TH...9TH...11TH...AND 12TH # FOR MAX DAILY AVERAGE TEMPERATURES... CLL - 14TH HOU - 21ST AND 22ND SGR - 20TH AND 21ST LBX - 20TH...21ST...AND 22ND PSX - 21ST LVJ - 21ST AND 28TH ## FOR MIN DAILY AVERAGE TEMPERATURES... GLS - 18TH HOU - 6TH AND 18TH UTS - 18TH SGR - 5TH LBX - 6TH AND 9TH PSX - 6TH AND 10TH & FOR MAX RAINFALL CXO - 17TH THE FOLLOWING TABLE LISTS THE MONTHLY TEMPERATURE AND RAINFALL DATA FOR FIRST- AND SECOND-ORDER CLIMATE SITES ACROSS SOUTHEAST TEXAS... JULY 2014 DATA AVE AVE MONTHLY AVE MONTHLY YEAR-TO-DATE SITE HIGH LOW DAILY DEP RAIN DEP RAIN DEP IAH 93.1 74.3 83.7 -0.7 5.40 +1.61 26.65 -1.46 GLS 90.2 79.3 84.8 +0.3 1.08 -2.72 11.30 -15.49 CLL 92.8 73.6 83.2 -1.5 6.72 +4.58 22.36 -0.48 HOU 92.2 75.6 83.9 +0.1 1.26 -3.40 21.08 -8.96 CXO 91.3 71.5 81.4 -1.2 2.91 -0.52 26.05 +0.92 UTS 91.8 73.4 82.6 -1.5 4.40 +1.02 25.62 -0.36 DWH 92.5 74.0 83.2 +1.1 3.42 -0.42 25.77 -1.62 SGR 93.4 74.5 84.0 +0.4 2.68 -1.68 23.80 -3.60 LBX 90.9 72.3 81.6 -0.7 4.21 -0.35 18.37 -9.28 PSX 90.6 77.9 84.3 +0.3 1.75 -3.01 9.46 -15.32 LVJ 92.4 75.7 84.0 +1.0 3.00 -1.71 19.07 -9.68 HGX 91.2 74.7 82.9 +0.9 5.11 +0.53 22.28 -7.31
Crazy here in Porter too. Our lights were out from 11 pm to 6pm. That was one of the craziest storm I''ve seen probably since the storms that came through in the Spring before Alicia. The lightening was spectacular.
No rain, no rainbows.
It feels like California out here tonight.
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