Trans-Pecos Weather Modification Association
The Trans-Pecos Weather Modification Association started in 2002 and has been an active program since. The TPWMA is headquartered out of Barstow Texas and serves 3 full counties and portions of 2 others. In 2021, the TPWMA expanded into all of Pecos County and continues to do so today. The TPWMA now contracts the servies to the Rainmaker Technology Corporation.
27 March 2025
Seeding operations were conducted in Jeff Davis (6G) and Pecos (6G) counties. 12 glaciogenic flares were used to seed 2 clouds. This is the 1st day for seeding in March and the 1st day for seeding during the season.
View full report here.
16 April 2025
Seeding operations were conducted in Pecos County (20G). 20 glaciogenic flares were used to seed 2 clouds. This is the 1st day for seeding in April and the 2nd day for seeding during the season.
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19 April 2025
Seeding operations were conducted in Upton (6G) and Pecos (1H) counties. Note that although seeding was conducted in southwestern Upton County, the main portion of the precipitating storm being seeded was located in far eastern Pecos County. 6 glaciogenic flares and 1 hygroscopic flare were used to seed 2 clouds. This is the 2nd day for seeding in April and the 3rd day for seeding during the season.
View full report here.
22 April 2025
Seeding operations were conducted in Pecos (10G + 3H) and Reeves (2G) counties. 12 glaciogenic flares and 3 hygroscopic flares were used to seed 3 clouds. This is the 3rd day for seeding in April and the 4th day for seeding during the season.
View full report here.
23 April 2025
Seeding operations were conducted in Pecos County (2G). 2 glaciogenic flares were used to seed 1 cloud. This is the 4th day for seeding in April and the 5th day for seeding during the season.
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24 April 2025
Seeding operations were conducted in Pecos County (33G + 4H). 33 glaciogenic flares and 4 hygroscopic flares were used to seed 6 clouds. This is the 5th day for seeding in April and the 6th day for seeding during the season.
View full report here.
25 April 2025
Seeding operations were conducted in Pecos (16G + 2H), Reeves (34G + 3H), Culberson (10G) and Jeff Davis (2G) counties. 62 glaciogenic flares and 5 hygroscopic flares were used to seed 10 clouds. This is the 6th day for seeding in April and the 7th day for seeding during the season.
View full report here.
26 April 2025
A reconnaissance flight was conducted to investigate convection in Reeves County.
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April 27 2025
Seeding operations were conducted in Pecos County (6G + 1H). 6 glaciogenic flares and 1 hygroscopic flare were used to seed 1 cloud. This is the 7th day for seeding in April and the 8th day for seeding during the season.
View full report here.
4 May 2025
Seeding operations were conducted in Reeves County (17G + 2H). 17 glaciogenic flares and 2 hygroscopic flares were used to seed 3 clouds. This is the 1st day for seeding in May and the 9th day for seeding during the season.
View full report here.
22 May 2025
Seeding operations were conducted in Pecos County (6G + 1H). 6 glaciogenic flares and 1 hygroscopic flare were used to seed 1 cloud. This is the 2nd day for seeding in May and the 10th day for seeding during the season.
View full report here.
23 May 2025
Seeding operations were conducted in Jeff Davis (12G + 1H) and Ward (6G) counties. 18 glaciogenic flares and 1 hygroscopic flare were used to seed 2 clouds. This is the 3rd day for seeding in May and the 11th day for seeding during the season.
View full report here.
24 May 2025
Seeding operations were conducted in Pecos County (10G + 2H). 10 glaciogenic flares and 2 hygroscopic flares were used to seed 2 clouds. This is the 4th day for seeding in May and the 12th day for seeding during the season.
View full report here.
29 May 2025
Two reconnaissance flights were conducted to investigate convection in Reeves and Culberson counties.
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02 June 2025
Seeding operations were conducted in Reeves County (26G + 2H). 26 glaciogenic and 2 hygroscopic flares were used to seed 3 clouds. This is the 1st day for seeding in June and the 13th day for seeding during the season.
View full report here.
05 June 2025
A reconnaissance flight took place to investigate convection in Reeves and Jeff Davis counties.
View full report here.
06 June 2025
A reconnaissance flight took place to investigate convection in Reeves County.
View full report here.
13 June 2025
A reconnaissance flight took place to investigate convection in Reeves and Pecos counties.
View full report here.
22 June 2025
Seeding operations were conducted in Reeves County (18G + 1H). 18 glaciogenic flares and 1 hygroscopic flare were used to seed 2 clouds. This is the 3rd day for seeding in June and the 15th day for seeding during the season.
View full report here.
23 June 2025
Seeding operations were conducted in Pecos County (12G). 12 glaciogenic flares were used to seed 1 large cloud. This is the 4th day for seeding in June and the 16th day for seeding during the season.
View full report here.
24 June 2025
Seeding operations were conducted in Reeves County (6G + 1H). 6 glaciogenic flares and 1 hygroscopic flare were used to seed 1 large cloud. This is the 4th day for seeding in June and the 16th day for seeding during the season.
View full report here.
25 June 2025
Seeding operations were conducted in Pecos (54G) and Reeves (4G). 58 glaciogenic flares were used to seed 5 large clouds. This is the 5th day for seeding in June and the 17th day for seeding during the season.
View full report here.
26 June 2025
Seeding operations were conducted in Pecos (30G) and Reeves (24G). 54 glaciogenic flares were used to seed 5 clouds. This is the 6th day for seeding in June and the 18th day for seeding during the season.
View full report here.
30 June 2025
Seeding operations were conducted in Reeves (23G + 1H) and Ward (4G) counties. 27 glaciogenic flares and 1 hygroscopic flare were used to seed 2 clouds. This is the 7th day for seeding in June and the 19th day for seeding during the season.
View full report here.
4 August 2025
A reconnaissance flight took place to investigate convection in Pecos County.
View full report here.
11 August 2025
A reconnaissance flight took place to investigate convection in Reeves and Pecos counties.
View full report here.
12 August 2025
Seeding operations were conducted over Pecos County (57G + 2H). 57 glaciogenic flares and 2 hygroscopic flares were burned within 6 clouds. This is the 1st day for seeding in August and the 20th day for seeding during the season.
View full report here.
17 August 2025
Seeding oSeeding operations were conducted in Reeves (55G+3H), Culberson (8G) and Pecos (10G) counties. 73 glaciogenic flares and 3 hygroscopic flares were burned within 11 clouds. This is the 2nd day for seeding in August and the 21st day for seeding during the season.
View full report here.
18 August 2025
Seeding operations were conducted in Pecos County (44G). 44 glaciogenic flares were burned within 7 clouds. This is the 3rd day for seeding in August and the 22nd day for seeding during the season.
View full report here.
19 August 2025
Seeding operations were conducted over Pecos (48G+2H) and Reeves (8G) counties. 56 glaciogenic flares and 2 hygroscopic flares were burned within 8 clouds. This is the 4th day for seeding in August and the 23rd day for seeding during the season.
View full report here.
20 August 2025
Seeding operations were conducted in Pecos (24G+1H) and Ward (2G) counties. 26 glaciogenic flares and 1 hygroscopic flare were burned within 5 clouds. This is the 5th day for seeding in August and the 24th day for seeding during the season.
View full report here.
27 August 2025
Seeding operations were conducted over Pecos (61G) and Brewster (2G) counties. 63 glaciogenic flares were burned within 8 clouds. This is the 6th day for seeding in August and the 25th day for seeding during the season.
View full report here.
29 August 2025
Seeding operations were conducted over Reeves (8G), Loving (2G) and Pecos (18G) counties. 28 glaciogenic flares were burned within 4 clouds. This is the 7th day for seeding in August and the 26th day for seeding during the season.
View full report here.
30 August 2025
Seeding operations were conducted over Pecos County (45G+3H) and along the Brewster County line (5G) where activity was pushing into Pecos County. 50 glaciogenic flares and 3 hygroscopic flares were burned within 7 clouds. This is the 8th day for seeding in August and the 27th day for seeding during the season.
View full report here.
31 August 2025
Seeding operations were conducted over Pecos (28G), Ward (4G) and Crane (10G) counties. 42 glaciogenic flares were burned within 5 clouds. This is the 9th day for seeding in August and the 28th day for seeding during the season.
View full report here.
7 September 2025
A reconnaissance flight took place to investigate convection in Pecos County.
View full report here.
13 September 2025
Seeding operations were conducted over Pecos (46G + 2H) and Culberson (20G + 1H) counties. 66 glaciogenic flares and 3 hygroscopic flares were burned within 5 clouds. This is the 1st day for seeding in September and the 29th day for seeding during the season.
View full report here.
14 September 2025
Seeding operations were conducted over Culberson County (8G + 1H). 8 glaciogenic flares and 1 hygroscopic flares were burned within 1 cloud. This is the 2nd day for seeding in September and the 30th day for seeding during the season.
View full report here.
15 September 2025
Seeding operations were conducted over Reeves County (56G + 2H). 56 glaciogenic flares and 2 hygroscopic flares were burned within 6 clouds. This is the 3rd day for seeding in September and the 31st day for seeding during the season.
View full report here.
18 September 2025
Seeding operations were conducted over Pecos County (2G). 2 glaciogenic flares were burned within 1 cloud. This is the 4th day for seeding in September and the 32nd day for seeding during the season.
View full report here.
20 September 2025
Seeding operations were conducted over Pecos County (6G). 6 glaciogenic flares were burned within 1 cloud. This is the 5th day for seeding in September and the 33rd day for seeding during the season.
View full report here.
23 September 2025
A reconnaissance flight took place to investigate convection in Pecos County.
View full report here.
27 September 2025
Seeding operations were conducted along the Jeff Davis/Reeves County line (8G). 8 glaciogenic flares were burned within 1 cloud. This is the 7th day for seeding in September and the 35th day for seeding during the season.
View full report here.
28 September 2025
Seeding operations were conducted over Reeves (28G+1H) and Pecos (2G) counties. 30 glaciogenic flares and 1 hygroscopic flare were burned within 4 clouds. This is the 8th day for seeding in September and the 36th day for seeding during the season.
View full report here.
8 October 2025
Seeding operations were conducted over Terrell (10G+1H), Pecos (16G + 1H) and Crockett (18G) counties. 44 glaciogenic flares and 2 hygroscopic flares were burned within 5 clouds. This is the 1st day for seeding in October and the 37th day for seeding during the season.
View full report here.
16 October 2025
Seeding operations were conducted over Pecos (8G), Jeff Davis (8G + 1H) and Reeves (18G + 2H) counties. 42 glaciogenic flares and 3 hygroscopic flares were burned within 5 clouds. This is the 2nd day for seeding in October and the 38th day for seeding during the season.
View full report here.
17 October 2025
Seeding operations were conducted over Pecos County (8G + 1H). 8 glaciogenic flares and 1 hygroscopic flare were burned within 1 cloud. This is the 3rd day for seeding in October and the 39th day for seeding during the season.
View full report here.
24 October 2025
Seeding operations were conducted over Pecos County (29G + 2H). 29 glaciogenic flares and 2 hygroscopic flares were burned within 2 large clouds. This is the 4th day for seeding in October and the 40th day for seeding during the season.
View full report here.