Recent Seeding missions
This year daily reports will be posted on this page in order to allow who ever wishes to see what happened on particular seeding day. These reports will include information about the weather pattern that day, seeding operations and in particular, information about where seeding occurred and how much seeding material was used. The files will be in PDF format and will be located at the end of each monthly summary. If there are any questions about these reports, please feel free to email Stephanie Beall, the meteorologist for the project.
July 2010
July was a tale of two months as it usually tends to be in south Texas. During the first part of the month, a very active tropical pattern occurred over south Texas, with a Tropical Upper Tropospheric Trough (TUTT) and a Tropical Depression making landfall near Brownsville. This allowed for a lot of rainfall over the area just in the first week of the month. However, it seemed by the mid part of the month to dry out across most locations, especially locations near the Rio Grande, where historic flooding occurred during most of the month. Seeding operations were suspended for most of July over the Rio Grande watershed and along the Rio Grande River as not to aggravate an already major flooding situation. During the last part of the month, activity really picked up across the area as a number of tropical disturbances moved into south Texas from the Gulf of Mexico. With such an active pattern over the month, weather modification activities were also active. The month of July yielded a total of 13 seeding flights on 9 seeding days. Additionally, two reconnaissance flights occurred during July. More detailed information about the flights can be found below on the monthly flight activity sheet. Rainfall wise, the entire target area was above average for this time of year. Webb County saw the highest rainfall amounts with 8 inches above normal in some locations there. For more information about rainfall, please refer to the rainfall graphic below.
| Town (County) | July 2010 Precipitation (inches) | 2010 Year to Date Precipitation (inches) |
| Carrizo Springs (Dimmit) | 3.23 | 19.82 |
| Cotulla (LaSalle) | 3.03 | 16.71 |
| Crystal City (Zavala) | 4.41 | 12.34 |
| Laredo (Webb) | 4.83 | 24.25 |
| Uvalde (Uvalde) | 3.94 | 17.76 |
Below is the flight information spreadsheet and the monthly precipitation graphic for the month of June.
July 2010 flight activity spreadsheet
July Flight reports
June 2010
June was a very progressive month for the target area and most of south Texas as about every type of weather pattern occurred. At the beginning of the month, severe weather plagued the area when a two large MCS's moved across the target area, bringing heavy rain, very strong winds and some small hail. The mid part of the month things began to dry out quickly and a strong area of high pressure produced hot temperatures for the area. And finally, at the end of the month, Hurricane Alex, made landfall about 100 miles south of Brownsville, bringing very heavy rainfall to parts of the target area. Weather modification wise, the month was somewhat active but by no means above normal. Flight activity was spread out during the entire month, but there were a couple weeks out of the month where the high pressure dominated the weather pattern. To see more details about flight activity during the month, refer to the flight activity sheet below. Rainfall wise, Webb County was above normal for this time of year while the rest of the target area was at or below normal. Locations in northern Zavala County were the driest with rainfall totals about 4 inches below normal for this time of year. Please view the precipitation graphic below for more information.
| Town (County) | June 2010 Precipitation (inches) | 2010 Year to Date Precipitation (inches) |
| Carrizo Springs (Dimmit) | 2.11 | 16.59 |
| Cotulla (LaSalle) | 1.94 | 13.68 |
| Crystal City (Zavala) | 0.48 | 7.93 |
| Laredo (Webb) | 5.31 | 19.42 |
| Uvalde (Uvalde) | 1.12 | 13.82 |
Below is the flight information spreadsheet and the monthly precipitation graphic for the month of June.
June 2010 flight activity spreadsheet
June Flight reports
May 2010
Some locations across the target area were wet and some were dry during the month. This was classified by convective type rain over the area for most of the month. Locations in LaSalle, eastern Webb, eastern Dimmit and southern Zavala counties saw the best rainfall for the month with near normal amounts all the way up to some isolated spots of 4 inches. The rest of the target area was drier, with deficits up to 2 inches. Weather modification wise, the month was somewhat active with a total of six seeding flights on three seeding days. Of the six flights, two were classified as hail suppression and four were classified as rain enhancement. Additionally, two reconnaissance flights occurred during the month.
| Town (County) | May 2010 Precipitation (inches) | 2010 Year to Date Precipitation (inches) |
| Carrizo Springs (Dimmit) | 3.01 | 14.48 |
| Cotulla (LaSalle) | 4.08 | 11.74 |
| Crystal City (Zavala) | 1.85 | 7.45 |
| Laredo (Webb) | 2.89 | 14.11 |
| Uvalde (Uvalde) | 4.39 | 12.70 |
Below is the flight information spreadsheet and the monthly precipitation graphic for the month of May.
May 2010 flight activity spreadsheet
May Flight Reports
April 2010
April finally began to offer the target area a couple of seeding opportunities.
Even with a late start, seeding activities became active, especially near the mid
point of the month. A number of large scale weather systems moved through
to give the area rainfall . Some portions of the target area saw well over 7-8 inches of
their normal April rainfall. Locations in northwestern and eastern
Webb, southwestern Zavala and eastern Uvalde County all saw anywhere from 5-8
inches of rainfall for the month of April. The rest of the target area
received normal or near normal precipitation for the month. As there
are always drier spots, eastern Dimmit, most of LaSalle, and northern Zavala
were about 1-2 inches below normal for April. Weather modification wise, a
total of 5 seeding flights occurred on 5 seeding days. Of the five flights, three
were rain enhancement and two were hail suppression. A total of 66(40g) BIP flares and 2,640g of AgI were used during the month of April.
| Town (County) | April 2010 Precipitation (inches) | 2010 Year to Date Precipitation (inches) |
| Carrizo Springs (Dimmit) | 4.40 | 11.22 |
| Cotulla (LaSalle) | 1.11 | 8.31 |
| Crystal City (Zavala) | 2.17 | 7.66 |
| Laredo (Webb) | 2.80 | 5.60 |
| Uvalde (Uvalde) | 3.06 | 11.47 |
April Flight Reports
April 16, 2010 report April 23-24, 2010 report
March 2010
March got off to a slow start weather modification wise, as most of the systems that moved through south Texas were rather stable. The stable atmosphere only gave rise to heavy rain events across the area and not the thunderstorms needed for cloud seeding. Most of the area saw about normal precipitation for the month. Portions of central/eastern Zavala and south/southwest Dimmit county were about 1-2 inches above normal. The southern parts of the target area, especially southern LaSalle and northern Webb faired the worst with precipitation totals about 1-2 inches below normal. There were no flights for the month of March. The table below shows some rainfall totals from around the target area.
| Town (County) | March 2010 Precipitation (inches) | 2010 Year to Date Precipitation (inches) |
| Carrizo Springs (Dimmit) | 4.40 | 6.82 |
| Cotulla (LaSalle) | 1.16 | 7.15 |
| Crystal City (Zavala) | 1.14 | 5.49 |
| Laredo (Webb) | 0.50 | 2.80 |
| Uvalde (Uvalde) | 1.46 | 7.87 |
