Current Operations
South Texas Weather Modification Association
Monthly Summaries for 2020:















April 09 -
Seeding operations were conducted in Bandera (14+0H), Bexar (10+0H),
Frio (6+0H), Medina (12+0H), and Wilson (6+0H) Counties. 48 flares plus 0
hygroscopic flares were burned within 4 clouds. This is the 1st day for seeding in April
and the 1st day for seeding during the season. Operation summary
here.

May 05 - Seeding operations were conducted in Bee (12+0H), and McMullen (6+0H)
Counties. 18 flares plus 0 hygroscopic flares were burned within 2 clouds. This is the 1st
day for seeding in May and the 2nd day for seeding during the season. Operation
summary
here.

May 08 - Seeding operations were conducted in Bee (6+0H) County. 6 flares plus 0
hygroscopic flares were burned within 1 cloud. This is the 2nd day for seeding in May
and the 3rd day for seeding during the season. Operation summary
here.

May 12 - Seeding operations were conducted in Atascosa (12+12H), Bexar (6+12H),
Frio (6+12H), Medina (2+4H), and Wilson (14+0H) Counties. 40 flares plus 40
hygroscopic flares were burned within 6 clouds. This is the 3rd day for seeding in May
and the 4th day for seeding during the season. Operation summary
here.

May 23 - Seeding operations were conducted in Uvalde (10+20H) County. 10 flares
plus 20 hygroscopic flares were burned within 1 cloud. This is the 4th day for seeding in
May and the 5th day for seeding during the season. Operation summary
here.

May 24 - Seeding operations were conducted in Frio (10 + 0H), Medina (10 + 20H) and
Uvalde (14+28H) Counties. 34 flares plus 48 hygroscopic flares were burned within 3
clouds. This is the 5th day for seeding in May and the 6th day for seeding during the
season. Operation summary
here.

May 26 - Seeding operations were conducted in Wilson (10 + 0H) County. 10 flares
plus 0 hygroscopic flares were burned within 1 cloud. This is the 6th day for seeding in
May and the 7th day for seeding during the season. Operation summary
here.

May 30 - Seeding operations were conducted in Bee (6+0H) and Wilson (6 + 0H)
Counties. 12 flares plus 0 hygroscopic flares were burned within 2 clouds. This is the 7th
day for seeding in May and the 8th day for seeding during the season. Operation
summary
here.

May 31 - Seeding operations were conducted in Atascosa (20+0H), Bandera (40+0H),
Bexar (4+0H), Medina (10+0H), and Uvalde (16+ 0H) Counties. 90 flares plus 0
hygroscopic flares were burned within 12 clouds. This is the 8th day for seeding in May
and the 9th day for seeding during the season. Operation summary
here.

June 02 - Seeding operations were conducted in Atascosa (6+0H), Bee (6+0H), Bexar
(6+0H), Karnes (8+0H), McMullen (6+0H), Medina (2+0H), and Wilson (22+0H)
Counties. 56 flares plus 0 hygroscopic flares were burned within 6 clouds. This is the 1st
day for seeding in June and the 10th day for seeding during the season. Operation
summary
here.

June 03 - Seeding operations were conducted in Atascosa (6+0H), and Karnes
(12+0H) Counties. 15 flares plus 0 hygroscopic flares were burned within 3 clouds. This
is the 2nd day for seeding in June and the 11th day for seeding during the season.
Operation summary
here.

June 15 - Seeding operations were conducted in Atascosa (32+0H), McMullen
(16+0H), and Wilson (8+0H) Counties. 15 flares plus 0 hygroscopic flares were burned
within 8 clouds. This is the 3rd day for seeding in June and the 12th day for seeding
during the season. Operation summary
here.

June 16 - Seeding operations were conducted in Frio (12+0H), and McMullen (8+0H)
Counties. 20 flares plus 0 hygroscopic flares were burned within 4 clouds. This is the 4th
day for seeding in June and the 13th day for seeding during the season. Operation
summary
here.

June 19 - Seeding operations were conducted in Bee (12+0H) County. 12 flares plus 0
hygroscopic flares were burned within 2 clouds. This is the 5th day for seeding in June
and the 14th day for seeding during the season. Operation summary
here.

June 21 - Seeding operations were conducted in Uvalde (10+0H) County. 10 flares
plus 0 hygroscopic flares were burned within 1 cloud. This is the 6th day for seeding in
June and the 15th day for seeding during the season. Operation summary
here.

June 25 - Seeding operations were conducted in Atascosa (8+0H), McMullen (10+0H),
Medina (10+0H), and Wilson (20+0H) County. 48 flares plus 0 hygroscopic flares were
burned within 6 clouds. This is the 7th day for seeding in June and the 16th day for
seeding during the season. Operation summary
here.

July 17 - Seeding operations were conducted in Bee (10+0H) County. 10 flares plus 0
hygroscopic flares were burned within 1 cloud. This is the 1st day for seeding in July and
the 17th day for seeding during the season. Operation summary
here.

July 18 - Seeding operations were conducted in Atascosa (4+0H), Frio (16+0H),
Karnes (6+0H), and Uvalde (8+0H) Counties. 34 flares plus 0 hygroscopic flares were
burned within 5 clouds. This is the 2nd day for seeding in July and the 18th day for
seeding during the season. Operation summary
here.

July 21 - Seeding operations were conducted in Uvalde (19+1H) County. 19 flares plus
1 hygroscopic flare were burned within 2 clouds. This is the 3rd day for seeding in July
and the 19th day for seeding during the season. Operation summary
here.

July 27 - Seeding operations were conducted in Bee (4+0H), Karnes (16+0H), and
Wilson (14+0H) Counties.  34 flares plus 0 hygroscopic flares were burned within 5
clouds. This is the 4th day for seeding in July and the 20th day for seeding during the
season. Operation summary
here.

July 28 - Seeding operations were conducted in Bee (10+0H), Karnes (4+0H), and Frio
(10+0H) Counties.  24 flares plus 0 hygroscopic flares were burned within 4 clouds. This
is the 5th day for seeding in July and the 21st day for seeding during the season.
Operation summary
here.

July 29 - Seeding operations were conducted in Atascosa (10+0H), Frio (4+0H), and
Uvalde (20+0H) Counties.  34 flares plus 0 hygroscopic flares were burned within 4
clouds. This is the 6th day for seeding in July and the 22nd day for seeding during the
season. Operation summary
here.

July 31 - Seeding operations were conducted in Karnes (16+0H), Frio (8+0H),
McMullen (8+0H and Medina(12+0H) Counties.  44 flares plus 0 hygroscopic flares
were burned within 4 clouds. This is the 7th day for seeding in July and the 23rd day for
seeding during the season. Operation summary
here.

August 01 - Seeding operations were conducted in Bee (10+0H), and Uvalde (15+2H)
Counties.  25 flares plus 2 hygroscopic flares were burned within 3 clouds. This is the
1st day for seeding in August and the 24th day for seeding during the season. Operation
summary
here.

August 02 - Seeding operations were conducted in Atascosa (16+1H), Bee (4+0H),
Bexar (4+0H), Frio (4+0H), Karnes (4+0H), Uvalde (10+2H), and Wilson (2+0H)
Counties.  44 flares plus 3 hygroscopic flares were burned within 7 clouds. This is the
2nd day for seeding in August and the 25th day for seeding during the season.
Operation summary
here.

August 03 - Seeding operations were conducted in Atascosa (10+0H), Bandera
(8+0H), Bexar (11+1H), Medina (10+1H), and Uvalde (10+0H) Counties.  49 flares plus
2 hygroscopic flares were burned within 6 clouds. This is the 3rd day for seeding in
August and the 26th day for seeding during the season. Operation summary here.

August 17 - Seeding operations were conducted in Bandera (7+0H), Medina (17+0H),
McMullen (8+0H), Uvalde (22+0H), and Wilson (6+OH) Counties. 60 flares plus 0
hygroscopic flares were burned within 7 clouds. This is the 4th day for seeding in August
and the 27th day for seeding during the season. Operation summary
here.

August 18 - Seeding operations were conducted in Atascosa (16+1H), Bexar (8+0H),
Bee (18+2H), Frio (22+0H), Karnes (18+0H), Medina (10+0H), Uvalde (30+0H), and
Wilson (4+0H) Counties. 126 flares plus 3 hygroscopic flares were burned within 20
clouds. This is the 5th day for seeding in August and the 28th day for seeding during the
season. Operation summary
here.

August 19 - Seeding operations were conducted in Bee (10+0H) County. 8 flares plus
0 hygroscopic flares were burned within 1 cloud. This is the 6th day for seeding in
August and the 29th day for seeding during the season. Operation summary
here.

August 20 - Seeding operations were conducted in Bee (8+0H), Medina (10+0H), and
Uvalde (22+0H) Counties. 48 flares plus 0 hygroscopic flares were burned within 5
clouds. This is the 7th day for seeding in August and the 30th day for seeding during the
season. Operation summary
here.

August 22 - Seeding operations were conducted in Karnes (10+0H) County. 10 flares
plus 0 hygroscopic flares were burned within 1 cloud. This is the 1st day for seeding in
September and the 33rd day for seeding during the season.  Operation summary
here.

August 24 - Seeding operations were conducted in Bee (14+0H) County. 14 flares plus
0 hygroscopic flares were burned within 2 clouds. This is the 9th day for seeding in
August and the 32nd day for seeding during the season.  Operation summary
here.

September 02 - Seeding operations were conducted in Karnes (10+0H) County. 10
flares plus 0 hygroscopic flares were burned within 1 cloud. This is the 1st day for
seeding in September and the 33rd day for seeding during the season. Operation
summary
here.

September 03 - Seeding operations were conducted in Bandera (10+1H), Bexar
(8+0H), Frio (6+1H), McMullen (6+1H), and Wilson (8+0H) Counties. 38 flares plus 3
hygroscopic flares were burned within 4 clouds. This is the 2nd day for seeding in
September and the 34th day for seeding during the season. Operation summary
here.

September 04 - Seeding operations were conducted in Atascosa (2+0H), Bee
(10+0H), Frio (16+0H), Medina (13+1H), and Uvalde (10+1H) Counties. 51 flares plus 1
hygroscopic flare were burned within 6 clouds. This is the
3rd day for seeding in
September and the 35th day for seeding during the season. Operation summary
here.

September 05 - Seeding operations were conducted in Medina (30+0H), Uvalde
(10+0H), and Wilson (18+1H) Counties. 58 flares plus 0 hygroscopic flare were burned
within 8 clouds. This is the
4th day for seeding in September and the 36th day for
seeding during the season. Operation summary
here.

September 08 - Seeding operations were conducted in Bee (6+0H), Karnes(16+0H),
and McMullen (4+0H) Counties. 26 flares plus 0 hygroscopic flares were burned within 5
clouds. This is the
5th day for seeding in September and the 37th day for seeding during
the season. Operation summary
here.

September 09 -
Seeding operations were conducted in Bee (4+0H), Karnes(10+0H),
and Wilson (12+0H) Counties. 26 flares plus 0 hygroscopic flares were burned within 4
clouds. This is the 6th day for seeding in September and the 38th day for seeding during
the season. Operation summary
here.

September 13 - Seeding operations were conducted in Bandera(10+0H) County. 10
flares plus 0 hygroscopic flares were burned within 1 cloud. This is the 7th day for
seeding in September and the 39th day for seeding during the season. Operation
summary
here.

September 14 - Seeding operations were conducted in Bee(6+0H) County. 6 flares
plus 0 hygroscopic flares were burned within 1 cloud. This is the 8th day for seeding in
September and the 40th day for seeding during the season. Operation summary
here.

September 16 - Seeding operations were conducted in Uvalde(11+0H) County. 11
flares plus 0 hygroscopic flares were burned within 2 clouds. This is the 9th day for
seeding in September and the 41st day for seeding during the season. Operation
summary
here.

September 17 - Seeding operations were conducted in Atascosa(18+0H),
Bee(10+0H), Frio(16+0H), McMullen(6+0H), and Uvalde(28+0H) Counties. 78 flares
plus 0 hygroscopic flares were burned within 11 clouds. This is the 10th day for seeding
in September and the 42nd day for seeding during the season. Operation summary
here.















































All data, documents, and images on this site are property of the South Texas Weather
Modification Association. No one may use, modify, edit, or duplicate any data,
documents, or images unless granted by written permission from the Chairman or
webmaster.
Month
Flight Time
(hours)
Glaciogenic Flares
Hygroscopic
Flares
Silver (g)
April
4.50
48
0
187
May
18.00
220
108
1210
June
22.70
211
0
1161
July
15.6
162
3
891
August
33.50
399
11
2195
September
26.40
306
3
1683
October
0
0
0
0