I left out the 14325 kHz Natl. Hurricane Watch Net, because I did not know whether or not it was still active for Harvey. There's another tropical disturbance off the US East Coast, and if it develops the HWN may activate again.
Frequencies that have already been confirmed active in Harvey are in boldface.
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3845.0 (LSB) Gulf Coast West, often takes H&W
3873.0 (LSB)
Regional ARES Emergency Frequency
3910.0 (LSB) Central
Texas Emergency Net
3930.0 (LSB) North
Texas Emergency Net
3935.0 (LSB) Health
& Welfare Traffic Net (Night)
3944.0 (LSB) West
Gulf Emergency Net
3955.0 (LSB) South
Texas Emergency Net
3957.0 (LSB)
Louisiana State EOC
3975.0 (LSB) RACES
Net H&W Alternate
4780.0 FEMA
5135.0 SECURE Gulf
Coast net ALE/USB VOICE
5136.4 Red Cross
F-93
5141.4 Red Cross
F-94
5211.0 National
Emergency Coordination Net night primary
5696.0 Old USCG
air-ground/safety of flight, now mostly on COTHEN
5896.5 SHARES night
primary
6910.0 SHARES Region
6
7235.0 (LSB)
Regional Emergency Hurricane Frequency
7240.0 (LSB) Texas
Emergency Net
7248.0 (LSB) Texas
RACES, Primary Tactical Freq
7250.0 (LSB) Texas
Emergency Frequency
7260.0 (LSB) West
Gulf Coast Hurricane Net (Alt)
7264.0 (LSB) Gulf
Coast Health & Welfare (Alt)
7268.0 ????????????
7273.0 (LSB) Texas
ARES (Alt)
7285.0 (LSB) Primary
ARES Regional Daytime Frequency
7290.0 (LSB) Primary
Regional Daytime H&W/WX Freq
7348.0 FEMA
10493.0 National
Emergency Coordination Net day primary
11108.0 FEMA
12216.0 FEMA
13446.0 FEMA
"Foxtrot-36" various modes
13457.0 SHARES
primary - also Federal Aviation Administration
13956.0 FEMA
"Foxtrot-48", some NECN use (USB/LSB)
14293.0 Red Cross
use
14303.0 ARRL
International Assistance & Traffic Net
14389.0 MARS Mission
Support Net
14390.5 MARS
disaster operations
14396.5 SHARES
National Day Primary
14450.0 FEMA
"Foxtrot-41"
14567.0 FEMA
"Foxtrot-39," NECN primary in past
17458.5 SHARES
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In addition, there is activity on the COTHEN net, though I haven't heard any voice comms here yet. This net was a mainstay in Katrina, and while I realize that's 12 years ago, and that its primary mission remains law enforcement, maybe it will be used again. It's primarily USB ALE, though follow-on voice comm is frequent.
5732.0
5909.5
7527.0
8912.0
10242.0
11494.0
12222.0
13312.0
13907.0
14582.0
15867.0
18594.0
20890.0
23214.0
24835.5