"We've had to do things like work with large church groups, and open up gymnasiums," she said. She recalled several occasions where ICE released several hundred people at a time, and CCS rented out hotel rooms and provided services for the migrants there.
"So for us as we're considering something like a caravan and how you would respond to that, it's going to be deploying those same types of efforts," she said.
Tucson is located further north and west than the Diocese of Las Cruces in New Mexico, or the five border dioceses of Texas. Cavendish said while at first the Honduras caravan was expected to land in Arizona, now it seems it will head toward the Rio Grande Valley in Texas. ICE will transfer migrants to other locations as needed, if aid facilities become too overwhelmed, she said.
In the Archdiocese of San Antonio, Catholic Charities Executive Director Antonio Fernandez told local media that the agency is planning to take 200 refugees from detention centers in Laredo and El Paso in order to free up room for migrants from the caravans.
Fernandez also asked for increased donations of food, water and clothing as the agency prepares for the influx of refugees. "We help everybody, we are not here to judge," Fernandez told Channel 4 News of San Antonio.
Jordan McMorrough of the Archdiocese of San Antonio told CNA that the archdiocese plans to partner with Catholic Charities of the Rio Grande Valley based in the Diocese of Brownsville, Texas to help with migrant caravan relief efforts.
McMorrough said the archdiocese is still monitoring the specifics of the situation to know how many people to expect and how that will affect their efforts, but he said the caravans are not unlike other surges of migrants that they've seen in the past.
Brenda Riojas, the media relations director for the Diocese of Brownsville, told CNA that Catholic Charities of the Rio Grande Valley is also keeping an eye on the migrant caravan situation.
"Sister Norma Pimentel (the executive director of CCRGV) and hundreds of volunteers (Catholics and other faiths communities) are continuing their day to day efforts at the Respite Center that has been receiving up to 550 to 600 people a day," she said.
"We are also in close contact with shelters on the Mexican side of the border and will be sending donations their way."
Deacon Lonnie Briseno, director of the Office of Marriage and Family Life for the Diocese of Las Cruces, New Mexico, told CNA that he is concerned the migrant caravan could overwhelm an already-full immigration relief system.
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"Our hands are full right now with the overflow that are currently in our system," he told CNA.
"Our ICE detention facilities on the border are completely full, you're having double the people in a cell that was it was designed for, so we're talking about parents with children, parents with infants," he said.
"And so what ICE does then is they release them on their own recognizance, so we received an email, and today is the day we run a shelter. So they released 260 refugees, and the church I work with tonight will receive 40," Briseno said.
Different parishes in the Las Cruces area volunteer to serve as a temporary 24-hour shelters for the migrants throughout the week. Like CCS in Tucson, the shelters in Las Cruces feed and clothe the migrants, and help connect them with family and transportation.
The parishes that trade off hosting the migrants are very active parishes, Briseno said, and so they can typically only house migrants for their allotted 24 hour period.
What concerns Briseno is what happens when both ICE and the parishes run out of room.