http://water.usgs.gov/floods/ Make USGS information about emergency situations convenient and available for use by local, State, and Federal agencies and the news media, and to make policy officials aware of our role and contributions. en-us h2oteam@usgs.gov (USGS Water Web Team) http://water.usgs.gov/alerts/icons/USGS-logo.png http://water.usgs.gov/alerts/ Cleaning up from storm over the weekend. CA River Flooding CA state http://water.usgs.gov/alerts/item_2026-01-05_12:06:05.html http://water.usgs.gov/alerts/item_2026-01-05_12:06:05.html Mon, 05 Jan 2026 12:06:05 EST USGS field crews measure elevated stream flows sustained by ongoing precipitation at USGS streamgages near the western end of the Santa Ynez Mountains. CA River Flooding CA state http://water.usgs.gov/alerts/item_2026-01-03_14:08:42.html http://water.usgs.gov/alerts/item_2026-01-03_14:08:42.html Sat, 03 Jan 2026 14:08:42 EST Overnight precip requiring some follow up measurements. CA River Flooding CA state http://water.usgs.gov/alerts/item_2026-01-01_13:24:26.html http://water.usgs.gov/alerts/item_2026-01-01_13:24:26.html Thu, 01 Jan 2026 13:24:26 EST Today, USGS streamgages in CA are in recession after a week of storms CA River Flooding state CA http://water.usgs.gov/alerts/item_2025-12-27_14:38:39.html http://water.usgs.gov/alerts/item_2025-12-27_14:38:39.html Sat, 27 Dec 2025 14:38:39 EST Field Crews mopping up in Santa Barbara and LA areas. CA River Flooding state CA http://water.usgs.gov/alerts/item_2025-12-26_12:55:17.html http://water.usgs.gov/alerts/item_2025-12-26_12:55:17.html Fri, 26 Dec 2025 12:55:17 EST Rain over the last 24 hours were not impactful to the USGS streamgages, and recession measurements and streamgages are being prepped in the Russian River Basin. CA River Flooding state CA http://water.usgs.gov/alerts/item_2025-12-23_13:27:30.html http://water.usgs.gov/alerts/item_2025-12-23_13:27:30.html Tue, 23 Dec 2025 13:27:30 EST Crews deployed today from Ukiah FO CA CO River Flooding http://water.usgs.gov/alerts/item_2025-12-22_12:46:23.html http://water.usgs.gov/alerts/item_2025-12-22_12:46:23.html Mon, 22 Dec 2025 12:46:23 EST AR impact on California North Coast, etc CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-12-22_12:37:25.html http://water.usgs.gov/alerts/item_2025-12-22_12:37:25.html Mon, 22 Dec 2025 12:37:25 EST High rainfall in the Russian River Basin causes elevated flows in the Russian River CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-12-21_17:02:39.html http://water.usgs.gov/alerts/item_2025-12-21_17:02:39.html Sun, 21 Dec 2025 17:02:39 EST USGS CAWSC field crews measuring high flow at USGS streamgages in Southern California due to intense rainfall. CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-11-17_16:32:43.html http://water.usgs.gov/alerts/item_2025-11-17_16:32:43.html Mon, 17 Nov 2025 16:32:43 EST Low pressure system moved ashore in Southern California this morning bringing moderate to heavy intensity precipitation of short duration. CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-03-13_12:33:50.html http://water.usgs.gov/alerts/item_2025-03-13_12:33:50.html Thu, 13 Mar 2025 12:33:50 EDT CAWSC field crews measuring high flows due to ongoing atmospheric river CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-02-14_19:56:38.html http://water.usgs.gov/alerts/item_2025-02-14_19:56:38.html Fri, 14 Feb 2025 19:56:38 EST CAWSC field crews measuring elevated flows after atmospheric river event CA River Flooding state CA http://water.usgs.gov/alerts/item_2025-02-13_15:11:05.html http://water.usgs.gov/alerts/item_2025-02-13_15:11:05.html Thu, 13 Feb 2025 15:11:05 EST Pacific storms brought strong winds, moderate rain with a risk for flooding to northern and central California, and heavy mountain snow in the Sierras. CA River Flooding state CA http://water.usgs.gov/alerts/item_2025-02-05_13:19:00.html http://water.usgs.gov/alerts/item_2025-02-05_13:19:00.html Wed, 05 Feb 2025 13:19:00 EST CAWSC field crews measuring high flows after atmospheric river event CA River Flooding CA state http://water.usgs.gov/alerts/item_2025-02-03_14:37:56.html http://water.usgs.gov/alerts/item_2025-02-03_14:37:56.html Mon, 03 Feb 2025 14:37:56 EST Predicted moderate event failed to materialize in CA overnight. CA River Flooding Drought state CA http://water.usgs.gov/alerts/item_2024-12-27_10:16:41.html http://water.usgs.gov/alerts/item_2024-12-27_10:16:41.html Fri, 27 Dec 2024 10:16:41 EST USGS field crews continue measuring high flows in Northern CA CA River Flooding CA state http://water.usgs.gov/alerts/item_2024-12-14_14:05:57.html http://water.usgs.gov/alerts/item_2024-12-14_14:05:57.html Sat, 14 Dec 2024 14:05:57 EST USGS field crews continue measuring high flows in Northern CA CA River Flooding CA state http://water.usgs.gov/alerts/item_2024-11-23_17:39:15.html http://water.usgs.gov/alerts/item_2024-11-23_17:39:15.html Sat, 23 Nov 2024 17:39:15 EST Bomb Cyclone and AR combined CA River Flooding CA state http://water.usgs.gov/alerts/item_2024-11-22_12:42:02.html http://water.usgs.gov/alerts/item_2024-11-22_12:42:02.html Fri, 22 Nov 2024 12:42:02 EST Field crews measuring high flows at select streamgages. CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-03-30_17:15:17.html http://water.usgs.gov/alerts/item_2024-03-30_17:15:17.html Sat, 30 Mar 2024 17:15:17 EDT Field crews measuring high flows at select streamgages. CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-20_14:29:08.html http://water.usgs.gov/alerts/item_2024-02-20_14:29:08.html Tue, 20 Feb 2024 14:29:08 EST Field crews measuring high flows at select streamgages. CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-19_16:16:33.html http://water.usgs.gov/alerts/item_2024-02-19_16:16:33.html Mon, 19 Feb 2024 16:16:33 EST CA WSC field crews continue recession measurements after atmospheric river CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-07_15:50:55.html http://water.usgs.gov/alerts/item_2024-02-07_15:50:55.html Wed, 07 Feb 2024 15:50:55 EST CA WSC field crews make recession measurements after atmospheric river CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-06_16:30:17.html http://water.usgs.gov/alerts/item_2024-02-06_16:30:17.html Tue, 06 Feb 2024 16:30:17 EST atmospheric river brings strong wind and rains to parts of CA CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-05_13:25:01.html http://water.usgs.gov/alerts/item_2024-02-05_13:25:01.html Mon, 05 Feb 2024 13:25:01 EST Field crews measuring high flows due to high rainfall brought by an atmospheric river CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-04_16:51:07.html http://water.usgs.gov/alerts/item_2024-02-04_16:51:07.html Sun, 04 Feb 2024 16:51:07 EST Minor impact from AR through out California CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-02-01_16:13:30.html http://water.usgs.gov/alerts/item_2024-02-01_16:13:30.html Thu, 01 Feb 2024 16:13:30 EST Mid Pacific Storm focus on Southern California CA River Flooding state CA http://water.usgs.gov/alerts/item_2024-01-23_14:02:14.html http://water.usgs.gov/alerts/item_2024-01-23_14:02:14.html Tue, 23 Jan 2024 14:02:14 EST USGS field crews measuring streamflow during and after intense rainfall in the Santa Barbara to Oxnard areas CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-12-22_15:00:37.html http://water.usgs.gov/alerts/item_2023-12-22_15:00:37.html Fri, 22 Dec 2023 15:00:37 EST The CAWSC continues to repair gages after TS Hilary floods the Palm Springs and Whitewater area. CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-08-22_20:29:42.html http://water.usgs.gov/alerts/item_2023-08-22_20:29:42.html Tue, 22 Aug 2023 20:29:42 EDT Hurricane Hilary resulted in high water from southern California to southern Nevada. CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-08-21_11:26:02.html http://water.usgs.gov/alerts/item_2023-08-21_11:26:02.html Mon, 21 Aug 2023 11:26:02 EDT RDGs installed on Deer Creek and Tule River below Lake Success CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-24_20:47:40.html http://water.usgs.gov/alerts/item_2023-03-24_20:47:40.html Fri, 24 Mar 2023 20:47:40 EDT RDGs installed on Deer Creek and Tule River below Lake Success CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-24_20:47:39.html http://water.usgs.gov/alerts/item_2023-03-24_20:47:39.html Fri, 24 Mar 2023 20:47:39 EDT RDGs installed on Deer Creek and Tule River below Lake Success CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-24_20:47:19.html http://water.usgs.gov/alerts/item_2023-03-24_20:47:19.html Fri, 24 Mar 2023 20:47:19 EDT RDGs installed on Deer Creek and Tule River below Lake Success CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-24_20:47:11.html http://water.usgs.gov/alerts/item_2023-03-24_20:47:11.html Fri, 24 Mar 2023 20:47:11 EDT Follow up work after latest storms, RDG installations near Porterville CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-23_14:25:43.html http://water.usgs.gov/alerts/item_2023-03-23_14:25:43.html Thu, 23 Mar 2023 14:25:43 EDT Follow up work after the latest storms CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-22_15:40:13.html http://water.usgs.gov/alerts/item_2023-03-22_15:40:13.html Wed, 22 Mar 2023 15:40:13 EDT Crews measuring high flows in the central coast and from LA to San Diego CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-21_12:58:54.html http://water.usgs.gov/alerts/item_2023-03-21_12:58:54.html Tue, 21 Mar 2023 12:58:54 EDT Crews repairing streamgages and measuring Santa Maria River upstream and downstream of Twitchell Reservoir releases CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-20_14:04:42.html http://water.usgs.gov/alerts/item_2023-03-20_14:04:42.html Mon, 20 Mar 2023 14:04:42 EDT One crew flagging high-water marks in Pajaro CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-18_12:00:16.html http://water.usgs.gov/alerts/item_2023-03-18_12:00:16.html Sat, 18 Mar 2023 12:00:16 EDT Quiet day through out California, weather wise. CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-17_15:26:57.html http://water.usgs.gov/alerts/item_2023-03-17_15:26:57.html Fri, 17 Mar 2023 15:26:57 EDT Mopping up through out the state. CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-16_15:05:14.html http://water.usgs.gov/alerts/item_2023-03-16_15:05:14.html Thu, 16 Mar 2023 15:05:14 EDT Overnight AR continues to impact California CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-15_14:02:52.html http://water.usgs.gov/alerts/item_2023-03-15_14:02:52.html Wed, 15 Mar 2023 14:02:52 EDT Latest storm causes high flows in CA CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-14_16:44:00.html http://water.usgs.gov/alerts/item_2023-03-14_16:44:00.html Tue, 14 Mar 2023 16:44:00 EDT high flow measurements and gage repairs CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-13_12:57:02.html http://water.usgs.gov/alerts/item_2023-03-13_12:57:02.html Mon, 13 Mar 2023 12:57:02 EDT Crew measuring high flows in the Pajaro River CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-12_13:54:28.html http://water.usgs.gov/alerts/item_2023-03-12_13:54:28.html Sun, 12 Mar 2023 13:54:28 EDT Storm causes flooding from the Central Coast to the Southern Sierras CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-11_14:18:05.html http://water.usgs.gov/alerts/item_2023-03-11_14:18:05.html Sat, 11 Mar 2023 14:18:05 EST Storm causes minor flooding in parts of Northern and Central California CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-03-10_12:19:56.html http://water.usgs.gov/alerts/item_2023-03-10_12:19:56.html Fri, 10 Mar 2023 12:19:56 EST high flows from Santa Maria to San Diego CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-02-25_12:57:22.html http://water.usgs.gov/alerts/item_2023-02-25_12:57:22.html Sat, 25 Feb 2023 12:57:22 EST additional precipitation causing high flows in southern California CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-15_16:53:54.html http://water.usgs.gov/alerts/item_2023-01-15_16:53:54.html Sun, 15 Jan 2023 16:53:54 EST new storm causing additional high flows/flooding CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-09_15:36:48.html http://water.usgs.gov/alerts/item_2023-01-09_15:36:48.html Mon, 09 Jan 2023 15:36:48 EST flooding in the Santa Rosa/Ukiah area CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-08_15:31:13.html http://water.usgs.gov/alerts/item_2023-01-08_15:31:13.html Sun, 08 Jan 2023 15:31:13 EST Field work continues after week of strong storms CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-07_18:25:50.html http://water.usgs.gov/alerts/item_2023-01-07_18:25:50.html Sat, 07 Jan 2023 18:25:50 EST More high-flow measurements after strong tropical storm on New Year's Eve CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-02_19:09:01.html http://water.usgs.gov/alerts/item_2023-01-02_19:09:01.html Mon, 02 Jan 2023 19:09:01 EST Strong tropical storm causes flooding in California CA River Flooding state CA http://water.usgs.gov/alerts/item_2023-01-01_14:27:38.html http://water.usgs.gov/alerts/item_2023-01-01_14:27:38.html Sun, 01 Jan 2023 14:27:38 EST Continued rainfall causing minor flooding in parts of northern California CA River Flooding state CA http://water.usgs.gov/alerts/item_2022-12-31_15:02:26.html http://water.usgs.gov/alerts/item_2022-12-31_15:02:26.html Sat, 31 Dec 2022 15:02:26 EST Heavy rainfall from the outer bands of Hurricane Kay is expected to cause widespread flooding and landslides in parts of Southern California. CA River Flooding state CA http://water.usgs.gov/alerts/item_2022-09-09_12:09:17.html http://water.usgs.gov/alerts/item_2022-09-09_12:09:17.html Fri, 09 Sep 2022 12:09:17 EDT