Rip Current Statement issued April 21 at 2:09PM EDT until April 22 at 8:00PM EDT by NWS Miami FL
* WHAT...Dangerous rip currents. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Tuesday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.
Rip Current Statement issued April 21 at 11:32AM EDT until April 21 at 11:00PM EDT by NWS Tallahassee FL
* WHAT...Dangerous rip currents. * WHERE...Walton, Bay, and Gulf County Beaches. * WHEN...Until 11 PM EDT /10 PM CDT/ this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.
SPC Apr 21, 2025 1300 UTC Day 1 Convective Outlook
SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0730 AM CDT Mon Apr 21 2025 Valid 211300Z - 221200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE UPPER OHIO VALLEY AND LOWER GREAT LAKES...AND PORTIONS OF THE SOUTHEAST... ...SUMMARY... Isolated strong to severe thunderstorms are possible today across the upper Ohio Valley/lower Great Lakes and parts of the Southeast. Damaging winds and marginally severe hail are the primary risks. ...Upper Ohio Valley to the Lower Great Lakes... An upper trough with an attendant 55-70 kt mid-level jet will advance
SPC – No watches are valid as of Mon Apr 21 12:35:01 UTC 2025
No watches are valid as of Mon Apr 21 12:35:01 UTC 2025.
SPC – No MDs are in effect as of Mon Apr 21 12:35:01 UTC 2025
No Mesoscale Discussions are in effect as of Mon Apr 21 12:35:01 UTC 2025.
SPC Apr 21, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0307 AM CDT Mon Apr 21 2025 Valid 241200Z - 291200Z ...DISCUSSION... ...Day 4/Thu -- Central/Southern Plains... Some severe thunderstorm potential is possible across the southern/central Plains on Day 4/Thu. Similar to the Day 2-3/Tue-Wed period, a low-amplitude, and generally modest deep-layer southwesterly flow regime will persist. Southerly low level flow ahead of a southward sagging front across the central Plains, and to the east of a dryline extending southward across the southern High Plains will sustain advection of Gulf moisture across the region. At least some
Red Flag Warning issued April 21 at 4:01AM MDT until April 21 at 7:00PM MDT by NWS Denver CO
* AFFECTED AREA...Fire Weather Zones 242, 244, 246, 247, 248, 249, 250 and 251. * TIMING...From noon today to 7 PM MDT this evening. * WINDS...Southwest 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
Frost Advisory issued April 21 at 3:03AM PDT until April 21 at 8:00AM PDT by NWS Eureka CA
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Trinity County. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Freeze Warning issued April 21 at 1:56AM MDT until April 21 at 9:00AM MDT by NWS Grand Junction CO
* WHAT...Sub-freezing temperatures as low as 25 expected. * WHERE...Animas River Basin and Four Corners/Upper Dolores River. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Red Flag Warning issued April 20 at 8:58PM MDT until April 21 at 8:00PM MDT by NWS Goodland KS
...Critical fire weather conditions are expected across the area Monday afternoon... .The combination of dry fuels, southwest winds gusting up to 30 mph and low relative humidity will support critical fire weather conditions across the area Monday afternoon. * AFFECTED AREA...Fire Weather Zones 001 Cheyenne, 002 Rawlins, 003 Decatur, 004 Norton, 013 Sherman, 014 Thomas, 015 Sheridan, 016 Graham, 027 Wallace, 028 Logan, 029 Gove, 041 Greeley, 042 Wichita, 079 Dundy, 080 Hitchcock, 081 Red Willow, 252 Yuma, 253 Kit Carson and 254 Cheyenne. * TIMING...From noon MDT /1 PM CDT/ to 8 PM MDT /9 PM CDT/ Monday. *