Hydrologic Outlook issued May 26 at 8:25AM AKDT by NWS Fairbanks AK
ESFAFG A moderate to heavy run of ice on the Porcupine River will be passing Fort Yukon today. The heavy run of ice from Old Crow breaking up on Saturday morning was about 100 miles upstream from Fort Yukon as of 1pm Sunday. Water and ice levels with this run of ice are covering sand bars, but no significant water or ice has been seen overbank. Light runs of ice will continue through the week. The Porcupine River at Old Crow broke up Friday night and jammed just downstream from Old Crow causing moderate flooding before releasing Saturday morning. The
SPC May 27, 2025 0100 UTC Day 1 Convective Outlook
SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Mon May 26 2025 Valid 270100Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTH CENTRAL TEXAS... ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PORTIONS OF THE SOUTHERN PLAINS INTO THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Severe thunderstorms will propagate across south central Texas this evening. Large hail and damaging winds remain the primary severe threats. ...01z Update... Early-evening water-vapor imagery depicts a slow-moving upper trough over the High Plains. This feature appears to be handled
SPC May 26, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1226 PM CDT Mon May 26 2025 Valid 271200Z - 281200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM SOUTHWEST INTO SOUTH CENTRAL TEXAS...AND FROM SOUTHEAST MISSISSIPPI ACROSS ALABAMA INTO WEST CENTRAL GEORGIA... ...SUMMARY... Scattered strong to severe storms are expected on Tuesday from parts of the southern Plains eastward into the Southeast. The greatest threat of large hail and wind damage will be over parts of southwest and south-central Texas. A locally greater threat for wind damage could also occur in the lower
SPC May 26, 2025 1630 UTC Day 1 Convective Outlook
SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1145 AM CDT Mon May 26 2025 Valid 261630Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS TEXAS EDWARDS PLATEAU/SOUTH-CENTRAL TEXAS... ...SUMMARY... Severe thunderstorms are expected from parts of the southern Plains eastward into the lower Mississippi Valley. Very large hail is possible in parts of west-central/south-central Texas including the Edwards Plateau/Hill Country, with severe/damaging winds becoming a greater concern this afternoon/evening. ...Texas Edwards Plateau/Hill Country and South-central Texas... Post-MCS outflow continues to settle southward across south-central/southeast Texas at midday. Strong daytime
SPC May 26, 2025 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0736 AM CDT Mon May 26 2025 Valid 261300Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF WEST-CENTRAL TEXAS... ...SUMMARY... Severe thunderstorms are likely today from parts of the southern Plains eastward into the lower Mississippi Valley. Very large hail should occur with initial development in parts of west-central Texas, with severe/damaging winds becoming a greater concern this afternoon/evening. ...Edwards Plateau to the ArkLaTex... A large complex of thunderstorms is ongoing this morning across parts of central/east TX into the
Hydrologic Outlook issued May 25 at 1:17PM AKDT by NWS Fairbanks AK
ESFAFG The Porcupine River at Old Crow broke up Friday night and jammed just downstream from Old Crow causing moderate flooding before releasing Saturday morning. As of noon Saturday the Porcupine River had broken up past the US border. The Porcupine River at Fort Yukon is currently ice free, but light to moderate runs of ice can be expected to begin today through the middle of the week with water levels on the Porcupine River rising through the week into next weekend. At this time no flooding is expected as these runs of ice move past Fort Yukon.
SPC May 26, 2025 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1232 AM CDT Mon May 26 2025 Valid 261200Z - 271200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM WEST CENTRAL TEXAS TO THE LOWER MISSISSIPPI VALLEY... ...SUMMARY... Severe storms are expected from west-central Texas eastward into the lower Mississippi Valley. Areas of large hail will be possible with the primary risk becoming damaging winds. Marginally severe storms will also be possible outside the Slight Risk area from the southern Plains into the Southeast. ...Texas to the lower Mississippi Valley... Large-scale height field will
SPC May 25, 2025 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0748 AM CDT Sun May 25 2025 Valid 251300Z - 261200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN PLAINS... ...SUMMARY... Severe thunderstorms, including the risk for very large hail, swaths of severe winds with isolated 75+ mph gusts, and a few tornadoes, are expected across parts of the southern Plains this afternoon and evening. Scattered severe thunderstorms with large hail and damaging winds will also be a concern across the lower Mississippi Valley into the Deep South. ...Synopsis... A
Hydrologic Outlook issued May 24 at 2:13PM AKDT by NWS Fairbanks AK
ESFAFG The Porcupine River at Old Crow broke up overnight and jammed just downstream from Old Crow causing moderate flooding before releasing Saturday morning. As of noon Saturday the Porcupine River had broken up past the US border. The Porcupine River at Fort Yukon is currently ice free, but light to moderate runs of ice can be expected to begin tomorrow through the middle of the week with water levels on the Porcupine River rising through the week into next weekend. At this time no flooding is expected as these runs of ice move past Fort Yukon.
Hydrologic Outlook issued May 24 at 10:27PM CDT by NWS Brownsville TX
ESFBRO The Brownsville Texas National Weather Service Office has implemented Advanced Hydrologic Prediction Service (AHPS) for the Los Olmos Creek basin in Deep South Texas. AHPS enables the National Weather Service to provide long-range probabilistic outlooks. This service is also available on the internet. In the table below...the 90 through 10 percent columns indicate the chance the creek could rise above the listed stage levels in the next 90 days. Example: The Los Olmos Creek near Falfurrias has a flood stage of 11 feet. There is a 50 percent chance the Falfurrias forecast point will rise above 2.4 feet during