<alert><identifier>urn:oid:2.49.0.1.840.0.77e1e5e5609b2e57904cfeb39458de5374a916fb.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2025-12-24T14:53:00-08:00</sent><status>Actual</status><msgType>Update</msgType><scope>Public</scope><code>IPAWSv1.0</code><references>w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.6acaf150357fe9c7b69a70d75c1c328c9afb4d48.001.1.IPAWS,2025-12-24T12:56:00-08:00</references><info><language>en-US</language><category>Met</category><event>Flash Flood Warning</event><responseType>Avoid</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>FFW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>FFW</value></eventCode><effective>2025-12-24T14:53:00-08:00</effective><onset>2025-12-24T14:53:00-08:00</onset><expires>2025-12-24T16:30:00-08:00</expires><senderName>NWS San Diego CA</senderName><headline>Flash Flood Warning issued December 24 at 2:53PM PST until December 24 at 4:30PM PST by NWS San Diego CA</headline><description>FFWSGX

The National Weather Service in San Diego has extended the

* Flash Flood Warning for...
San Bernardino County in southern California...

* Until 430 PM PST.

* At 253 PM PST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. The expected rainfall rate is 0.25 to 0.75 inches in
1 hour. Additional rainfall amounts of 1 to 2 inches are possible
in the warned area. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
San Bernardino, Hesperia, Apple Valley, Lake Arrowhead, Hwy 173
Between Lake Arrowhead And Hesperia, Crestline, Rimforest,
Skyforest, Hwy 18 Between San Bernardino And Crestline and
Silverwood Lake Rec Area.
</description><instruction>Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWSGX</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS56 KSGX 242253</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>flashFloodDamageThreat</valueName><value>CONSIDERABLE</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>EAS</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>NWEM</value></parameter><parameter><valueName>EAS-ORG</valueName><value>WXR</value></parameter><parameter><valueName>VTEC</valueName><value>/O.EXT.KSGX.FF.W.0034.000000T0000Z-251225T0030Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2025-12-24T16:30:00-08:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS: FLASH FLOOD WARNING this area til 4:30 PM PST. Avoid flooded areas.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 4:30 PM PST. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.</value></parameter><area><areaDesc>San Bernardino, CA</areaDesc><polygon>34.15,-117.19 34.16,-117.32 34.4,-117.32 34.4,-117.14 34.15,-117.19</polygon><geocode><valueName>SAME</valueName><value>006071</value></geocode><geocode><valueName>UGC</valueName><value>CAC071</value></geocode></area></info><info><language>es-US</language><category>Met</category><event>Flash Flood Warning</event><responseType>Avoid</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>FFW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>FFW</value></eventCode><effective>2025-12-24T14:53:00-08:00</effective><onset>2025-12-24T14:53:00-08:00</onset><expires>2025-12-24T16:30:00-08:00</expires><senderName>NWS San Diego CA</senderName><headline>Flash Flood Warning issued December 24 at 2:53PM PST until December 24 at 4:30PM PST by NWS San Diego CA</headline><description>FFWSGX

The National Weather Service in San Diego has extended the

* Flash Flood Warning for...
San Bernardino County in southern California...

* Until 430 PM PST.

* At 253 PM PST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. The expected rainfall rate is 0.25 to 0.75 inches in
1 hour. Additional rainfall amounts of 1 to 2 inches are possible
in the warned area. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
San Bernardino, Hesperia, Apple Valley, Lake Arrowhead, Hwy 173
Between Lake Arrowhead And Hesperia, Crestline, Rimforest,
Skyforest, Hwy 18 Between San Bernardino And Crestline and
Silverwood Lake Rec Area.
</description><instruction>Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWSGX</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS56 KSGX 242253</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>flashFloodDamageThreat</valueName><value>CONSIDERABLE</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>EAS</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>NWEM</value></parameter><parameter><valueName>EAS-ORG</valueName><value>WXR</value></parameter><parameter><valueName>VTEC</valueName><value>/O.EXT.KSGX.FF.W.0034.000000T0000Z-251225T0030Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2025-12-24T16:30:00-08:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM: AVISO DE INUNDACIONES REPENTINAS hasta 4:30 PM PST. Evite areas inundadas.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 4:30 PM PST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.</value></parameter><area><areaDesc>San Bernardino, CA</areaDesc><polygon>34.15,-117.19 34.16,-117.32 34.4,-117.32 34.4,-117.14 34.15,-117.19</polygon><geocode><valueName>SAME</valueName><value>006071</value></geocode><geocode><valueName>UGC</valueName><value>CAC071</value></geocode></area></info><Signature xmlns="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="http://gov.fema.ipaws.services/IPAWS_CAPService/" xmlns:ns2="urn:oasis:names:tc:emergency:cap:1.2" xmlns:ns4="http://gov.fema.ipaws.services/capresponse" xmlns:ns3="http://gov.fema.ipaws.services/caprequest"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>V+2EqH8SyGjlcHK2N+JlyL3APDSolOPB6tdDR2oOofY=</DigestValue></Reference></SignedInfo><SignatureValue>G4DiWbbywgn5r61J+y/1RH17INVTEiZSd72DG6KHHx5u3yiGujgFfWb8rDjj6MmzxfFsnQA25WgG&#13;
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