A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday.
Showers and thunderstorms are expected to continue across the Upper Texas Gulf Coast into western Louisiana on Tuesday.
Central Texas
Additional thunderstorms are developing this evening. These cells will maintain the threat of flash flooding as they could train and overlap with areas of heavy rainfall earlier today. #txwx
www.wpc.ncep.noaa.gov/metwatch/met...
An informational weather graphic from the NOAA NWS Weather Prediction Center titled "SLIGHT RISK OF EXCESSIVE RAINFALL" for the afternoon into the overnight period, issued April 20, 2026, at 3:00 P.M. CDT. Map Description: The graphic includes a "Day One Excessive Rainfall Outlook" map focused on South Central Texas. A yellow shaded area (Slight risk) centers over San Antonio and extends toward Austin along the I-35 corridor. A larger green shaded area (Marginal risk) surrounds it, reaching toward Houston and the Gulf Coast. Flood Potential Points: Flash flooding is ongoing between Austin and San Antonio metros this afternoon, extending into the evening. An additional 1-2 inches of rain is forecast, with locally higher amounts possible. Extra travel time may be required for local state roads and parts of the I-35 corridor. Risk Definitions: High: At least 70% Moderate: At least 40% Slight: At least 15% Marginal: At least 5% Safety Advice: Stay weather aware. Have multiple ways to receive warning notifications. NEVER drive or walk into a flooded road—Turn Around, Don't Drown!
Heavy rainfall in the Texas Hill Country is leading to flash flooding this afternoon. Rain is expected to continue into the evening. Use caution on the roads if you have to travel.
Southern Florida
Slow moving thunderstorms capable of producing 2-3+ in/hr expected to impact southern FL over the next 4-6 hours. While a large portion of the area affected is covered by swamp, there could be impacts to urban areas along the SW/SE coast. #flwx
www.wpc.ncep.noaa.gov/metwatch/met...
Central Texas
Additional development of efficient, shallow convection containing periodic 1.5-2"/hr rainfall rates will maintain the threat of scattered flash flooding this afternoon. #txwx
www.wpc.ncep.noaa.gov/metwatch/met...
A NOAA/NWS Storm Prediction Center (SPC) Day 1 Fire Weather Outlook map for the United States, issued April 20, 2026. Map Details: The map highlights several regions of fire weather risk across the country: Elevated Risk (Orange): Areas include a large portion of the Central Plains (Nebraska, Kansas, and Oklahoma), parts of the Southeast (southern Georgia, Alabama, and northern Florida), and the Mid-Atlantic coast (North Carolina and Virginia). Isolated Dry Thunderstorms (Brown): A shaded region covers parts of the Southwest, specifically southern Arizona and southwestern New Mexico.
Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today.
Be sure to check your local forecast at weather.gov.
Record Snow, Record Rain, Rising Rivers
Flooding turned serious over the last week across Michigan and Wisconsin. Heavy rain & severe storms arrived on top of spring snowmelt.
www.weathernationtv.com/news/record-...
Severe Thunderstorms Ramp Back Up This Week
The Storm Prediction Center is already highlighting an area of potential severe weather on Thursday and Friday, from the Central Plains to the Lower Mississippi River Valley.
www.weathernationtv.com/news/severe-...
Powerful Earthquake Strikes Off Japan's Coast, Evacuations Ordered As Tsunami Warning Issued
A powerful 7.4 magnitude earthquake struck off Japan's northeast coast on Monday, prompting tsunami warnings and evacuations in coastal areas.
weather.com/news/weather...
NOAA NWS Storm Prediction Center
715 PM 4/19: Severe thunderstorm potential looks to increase later this week (Thursday and Friday) from the central/southern Great Plains into the Lower Mississippi Valley. Be sure to check back for later forecasts as risk areas may change.
Cold Blast Prompts Frost and Freeze Alerts
A blast of cold air has brought freeze warnings across portions of the Great Lakes, Midwest, and East. Temperatures will drop sub-freezing over the next few mornings.
www.weathernationtv.com/news/cold-ai...
Active Week Ahead for the West Coast
Heavy rain possible for N California, especially Monday/Tuesday.
Winter Storm Watches issued for portions of Sierra Nevada from Monday through Wednesday.
Winter weather advisories issued in N California near Mount Shasta.
www.weathernationtv.com/news/active-...
The Severe Threat Takes A Few Days Off Before Ramping Up Again Across Plains, Southern States Late This Week
It has been a very busy April when it comes to severe weather. Another round of severe weather could impact the Plains and South.
weather.com/storms/sever...
Tornado Outbreak Devastates Lena, Rochester, Marion: Midwest Communities Reel From Twisters
Multiple tornadoes tore through Illinois, Minnesota, Missouri, & Wisconsin Friday, leaving heavy damage in Lena, Illinois, & forcing evacuations in Rochester and Marion, Minnesota.
weather.com/news/weather...
SE Texas, SW Louisiana
Potent thunderstorms capable of producing >2"/hr rainfall rates over the urbanized communities of southeast TX and southwest LA could cause localized urban flash flooding. #lawx #txwx
www.wpc.ncep.noaa.gov/metwatch/met...
Portions of Edwards Plateau and Texas Hill Country
Isolated large hail and occasional strong wind gusts are possible across portions of Texas Hill Country and the Concho Valley this afternoon/evening. Watch issuance appears unlikely at this time. #txwx
www.spc.noaa.gov/products/md/...
N Kentucky into E Ohio, W Pennsylvania
Storms may strengthen through the afternoon with potential for strong to severe winds and some hail. Confidence in the thunderstorm activity remains low but trends will be monitored for watch issuance. #pawx #wvwx #ohwx #kywx
www.spc.noaa.gov/products/md/...
Tornado Watch 133
W-Central/Northern Indiana, Far SE Lower Michigan, Lake Michigan
Until 300 AM EDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging wind gusts to 70 mph possible
#inwx #miwx #lmwx
www.spc.noaa.gov/products/wat...
Severe Thunderstorm Watch 132
Far NW Arkansas, Ext SW Kansas, SW/S-Central Missouri, N/Central/W Oklahoma
Until 200 AM CDT
Large hail/isolated very large hail to 2.5" diameter
Damaging wind gusts to 70 mph
Tornado or two possible
#arwx #kswx #mowx #okwx
www.spc.noaa.gov/products/wat...
Northern/Central/Eastern Oklahoma, SE Kansas, Southern/Central Missouri, NW Arkansas
Isolated instances of flash flooding remain possible through 1am central. #mowx #ilwx #arwx #okwx #kswx
www.wpc.ncep.noaa.gov/metwatch/met...
Central/Northern Illinois, Much of Wisconsin, Upper Peninsula of Michigan, Western Indiana
Flash flood potential continues especially across Wisconsin and northern Illinois. This threat will shift eastward through the evening hours. #miwx #inwx #wiwx #ilwx #iawx
www.wpc.ncep.noaa.gov/metwatch/met...
Portions of Southern/Eastern Kansas into NW Missouri
Flash flooding is possible as storms expand in coverage and intensity across the discussion area through 7pm central. #mowx #kswx #newx #okwx
www.wpc.ncep.noaa.gov/metwatch/met...
Tornado Watch 131
Central/NE Illinois, NE Missouri, Lake Michigan
Until 1100 PM CDT
Couple tornadoes possible
Widespread damaging winds likely with isolated significant gusts to 75 mph
Scattered large hail/isolated very large hail to 2.5 " diameter
#ilwx #mowx #lmwx
www.spc.noaa.gov/products/wat...
Portions of Eastern Missouri into Western Illinois
Thunderstorms developing across the eastern portions of Missouri may bring the potential for all severe hazards this afternoon/evening. Watch issuance may be needed soon. #ilwx #mowx #iawx
www.spc.noaa.gov/products/md/...
Tornado Watch 130
S-Central/E Kansas, N/W-Central Missouri, N/W Oklahoma
Until 900 PM CDT
Tornadoes likely with a couple intense tornadoes
Damaging winds/isolated significant gusts to 85
Scattered large hail/isolated very large hail to 4" diameter
#kswx #mowx #okwx
www.spc.noaa.gov/products/wat...
NE Missouri, W/N Illinois, E Iowa, Far SE Minnesota, Central/S Wisconsin
Rapid convective development expected over highly saturated soils this afternoon. Cell-training will lead to totals of 2-4 inches, making flash flooding likely #wiwx #ilwx #iawx #mowx #mnwx
www.wpc.ncep.noaa.gov/metwatch/met...
Portions of the Southern/Central Great Plains into the Mid-Missouri Valley
Numerous severe thunderstorms are expected to form this afternoon. Storms will pose a threat for all hazards. Watch issuance will be needed in the next 1-2 hours. #mowx #kswx #okwx #newx
www.spc.noaa.gov/products/md/...
A few tornadoes likely with a couple intense tornadoes possible
Widespread large hail/isolated very large hail to 3.5" diameter likely
Scattered damaging wind gusts to 70 mph likely
#iawx #ilwx #mnwx #mowx #wiwx
Tornado Watch 129
Central/Eastern Iowa, Northern/W-Central Illinois, SE Minnesota, Far NE Missouri, Central/Southern Wisconsin
Until 800 PM CDT
#iawx #ilwx #mnwx #mowx #wiwx
www.spc.noaa.gov/products/wat...
NOAA NWS Storm Prediction Center
Here are our Key Messages for Friday (4/17).