Andrew Revering

26+ yr President & CEO of F5Weather. Providing weather data to TV Meteorologists, storm chasers, NWS employees, private meteorologists & hobbyists.

[Andrew Revering @F5Weather]

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[Andrew Revering @F5Weather]

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[Andrew Revering @F5Weather]

This Week in Weather
October 19–25, 2026

An Active Southwest, Dry East, and Potential Atlantic Development

A somewhat erratic and disorganized jet stream will dominate the weather pattern across the country this week. While its exact position will fluctuate, the general flow will extend from the southwestern United States northeastward into southern Canada. This will keep the most active weather concentrated along that corridor, while much of the eastern United States enjoys an extended stretch of sunshine and dry conditions.

Heavy Rain Targets the Southwest

The Southwest will be one of the more active regions this week, with periods of heavy rainfall expected across portions of Arizona, New Mexico, and surrounding areas. With moisture streaming into the region, locally significant rainfall totals will be possible. Some locations could experience flash flooding, particularly in normally dry washes and flood-prone areas.

Severe Storms Possible in the Plains Friday

Farther northeast along the jet stream, unsettled weather will extend into the Plains. By Friday, atmospheric conditions may become favorable for isolated severe thunderstorms across portions of the central Plains. While widespread severe weather is not currently anticipated, a few stronger storms could develop depending on the timing and strength of passing disturbances. This will be an area to watch as the week progresses.

Sunshine and Dry Weather Dominate the East

East of the jet stream, high pressure will be firmly in control, bringing an unusually dry and sunny stretch of weather to much of the eastern half of the country. From the Mississippi Valley to the Atlantic Coast, many locations can expect several days of pleasant weather with little in the way of precipitation.

Temperatures will vary considerably across the country. Unseasonably warm conditions will dominate portions of the northern Plains, Upper Midwest, and Great Lakes region, while cooler air settles into the West and much of the Southeast. Below-normal temperatures will be most noticeable along and east of the Appalachians, particularly across portions of the Mid-Atlantic and Southeast.

Watching a Developing Atlantic Low

Meanwhile, an area of low pressure is developing along a frontal boundary over the western Atlantic, east of the Mid-Atlantic coast. Although this system is currently non-tropical, there is some potential for it to acquire subtropical characteristics later in the week.

Much will depend on its track and how long it remains over the warm waters of the Gulf Stream, where it could draw additional energy and become better organized. While development remains uncertain, the system bears watching over the coming days. Regardless of whether it becomes subtropical, it could generate rough seas and increased surf along portions of the East Coast.

The Bottom Line

This week's weather pattern will feature a sharp contrast across the nation. The Southwest faces the potential for heavy rain, the Plains could see isolated severe storms toward Friday, and much of the East will enjoy an extended period of dry, sunny weather. Meanwhile, an offshore Atlantic low adds another feature worth monitoring as the week unfolds.

Stay tuned to https://t.co/NBFeHG1Guo for the latest forecasts, weather maps, and updates throughout the week.

[Andrew Revering @F5Weather]

This week will generally be warm in the West, South and Northeast. Cooler temperatures will pool across the Upper Midwest into the Great Lakes and Ohio Valley.

The jet will be weak and snaking across the north, from the Northwest to the Northeast.

Some isolated to scattered severe storms are possible Tuesday and Wednesday in the central part of the country, northward into the Great Lakes. Thursday some more isolated storms may pop up over the Upper Midwest. More storms may trigger over the weekend in New England or the Mid Atlantic states, and again over the northern prairies of North Dakota and Montana into Saskatchewan.

Heavy rains are expected Thursday-Saturday across parts of Virginia and North Carolina.

It'll be dry over much of California, with above normal temperatures and abundant sunshine. It'll also be exceptionally warm and dry over the Rio Grande region of Texas.

Wildfire smoke continues primarily in the Northwest, with plentiful wildfire smoke in British Columbia and Washington.

Get the latest model forecasts from https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

This week a weaker jet will come down out of the northwest from central Canada into New England. This will focus the rain and storms in the vicinity of the jet and just to it's south where more moisture and instability will reside.

Tuesday the SPC has a risk for severe storms out over parts of South Dakota, as well as the Midwest from Iowa to Virginia. More storms look likely across western and central Nebraska on Wednesday, northern Minnesota on Friday, and the lower Great Lakes into parts of the Northeast and Mid Atlantic by Sunday.

Warmer than normal temps are likely across the central and eastern part of the country south of that jet. Cooler than normal temps will set up in the Rockies and western states. This will be welcome to help fight forest fires in the Northwest, but it won't be enough without some much needed rain. Most of the beneficial rain in that region will stay up in Alberta.

It will be very dry in areas like northern California and in the vicinity of the Ark-La-Tex region. Sunshine will be dominant from Arkansas through the southwest and southern California.

The Atlantic is starting to look a little more interesting with the NHC watching 3 areas for possible development. The area with the greatest chance for development should be approaching the Lesser Antilles in about a week. Similarly, another system may develop and approach Hawaii at about the same time.

See the latest at https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

Want more than a generic weather forecast? Want to look at the models yourself? Check out exactly how hot it might actually get in Death Valley this week, or see where the wildfire smoke plumes are tracking next.

New and existing customers can add on 2 years of Professional level service for $250 with coupon code 250 at https://t.co/NBFeHG1Guo at check-out.

[Andrew Revering @F5Weather]

The first week of August will bisect the lower 48 states with wildfire smoke and hot, dry conditions in the west, and heavy rain and scattered severe storms in the east.

The jet will snake across the northern International border. Heavy rain is expected from Florida to Maine, especially Sunday and Monday, but light to moderate rain will continue for most of the week. Isolated severe storms look possible on Sunday in parts of the Northeast, and into New England on Monday. More isolated to scattered severe storms become possible in the Upper Midwest on Tuesday and tracks east through the period. Perhaps with another wave of storms moving through again at the end of the period.

A band of cooler than normal temperatures will be welcome from the Northern Rockies toward the Midwest into parts of the southeast.

Above normal temperatures will exist to the northeast and southwest of this area. The west coast and southwest will be smoky, hot and dry. Where smoke is not obscuring the sky -- expect sunny conditions. Highs in the desert southwest valleys will be in the 110s all week long. This includes Las Vegas, Yuma, Phoenix, Death Valley and other California Valleys.

Fires in the west are expanding and there will be no relief this week. This suggests the expanse of wildfire smoke across the northwest will likely expand to include more parts of the nation with time.

See the latest at https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

Enter to win a Retro Bluetooth/FM/Weatherband Radio! Go to https://t.co/5zu8FMelIs to submit your email for a chance to win this week's item, and see a list of upcoming weather gadgets! Be sure to tell your friends!

[Andrew Revering @F5Weather]

There's a lot going on this week across the country. The jet stream will sag a little farther south than it did last week, with more dips giving some in the northern tier some brief relief from the unseasonably high heat. Areas of eastern Canada down into the Great Lakes and Midwest into the Northeast and Mid-Atlantic will have below normal temperatures. This will be mainly early in the week, associated with a dip in the jet and some storms passing through the Northeast today.

Scattered strong to severe thunderstorms are ongoing today across parts of the Northeast. The Storm Prediction Center has a slight risk and enhanced risk for severe storms primarily from the Mid-Atlantic into the Ohio Valley today.

In the Gulf, Tropical Storm Bertha has formed and is expected to drift westward, hugging the Louisiana coast through Thursday. It will the make landfall near Houston, TX as a Tropical Depression. Damaging winds and heavy rains are expected along it's path.

It'll be hot across Florida, across he deep south into the west this week. It'll be generally dry out there, especially in parts of California. This will further the wildfire risk there. In the Pacific Northwest, many wildfires are contributing to a large plume of wildfire smoke from British Columbia through Washington, Oregon and Idaho into western Montana.

Late in the period, new storms are expected to develop in the Canadian Prairies on Friday and move to the northern Great Lakes by Sunday.

https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

We're in the thick of the year's hottest days and we're even running above normal for this time of year over much of the US. The only cool areas are parts of Quebec just north of the jet stream, and Texas & vicinity.

Although the North American Monsoon season is currently active, it's effects are largely limited to Arizona, New Mexico and far West Texas. The heavy rains farther east in Texas are primarily driven by the heat dome shift, The Ring of Fire, and a stalled front with Gulf moisture.

The massive high pressure ridge has moved into the Northern Plains and has caused a clockwise circulation around the outer edge, steering slow moving atmospheric disturbances across Texas. In addition, a stalled front and deep, stagnant Gulf air over the area are helping to fuel the rains.

This precipitation in the area is contributing to a bubble of cooler than normal air in the region.

Elsewhere, it'll continue to be hot across the lower 48 and southern Canada. The Jet Stream is ridging well into central Canada, helping to bottle up this extreme heat. It was 115° on Sunday in Glendive & Miles City , MT -- just 2 degrees shy of an all-time state record.

This heat is fueling forest fires in Canada and northern Minnesota. This will cause a plume of smoke to ride down through the Great Lakes and into the Northeast over the next few days.

Where this smoke exists, slightly cooler air from smoke filtering out the sun and adding particulates helping to create clouds may contribute toward chances for storms across the Great Lakes on Friday and into the northeast on Saturday. More storms from a synoptic shift in the Jet to start dragging farther south may fire off storms in Manitoba into Minnesota on Sunday.

It will be unusually dry across the Front Range of Colorado and southern and central California.

Although no organized tropical disturbances are expected in the next several days in the Atlantic, some tropical energy in the Gulf could contribute to heavy rains over parts of the southeast by this weekend.

Most of the west will have sunny conditions this week under that hot dome.

See the latest at https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

Today is your last chance to enter to win an Acurite Weather Forecaster Wireless Digital Color Display! Go to https://t.co/5zu8FMelIs to submit your email for a chance to win this week's item, and see a list of upcoming weather gadgets! Be sure to tell your friends!

[Andrew Revering @F5Weather]

Our first giveaway has completed, and Matt S. of Isanti, MN won an Acurite Lightning Detector!

This week's giveaway is an Acurite Weather Forecaster Wireless Digital Color Display! Go to https://t.co/J8kB3nQE9t to submit your email for a chance to win this week's item, and see a list of upcoming weather gadgets! Be sure to tell your friends!

[Andrew Revering @F5Weather]

Happy 250th birthday America! To help celebrate this 4th of July, we're offering F5Weather Professional for 2 years for $250 (normally $319.90). New and existing customers of our weather model forecast maps site can add on this time to their account, but the offer is only available through the 4th of July weekend.

Enter coupon code 250 at check-out, this weekend only!
https://t.co/oIlXcjT6DH

[Andrew Revering @F5Weather]

Happy 250th birthday America! To help celebrate this 4th of July, we're offering F5Weather Professional for 2 years for $250 (normally $319.90). New and existing customers of our weather model forecast maps site can add on this time to their account, but the offer is only available through the 4th of July weekend.

Enter coupon code 250 at check-out, while it lasts!
https://t.co/oIlXcjT6DH

[Andrew Revering @F5Weather]

Our first giveaway has completed, and one lucky winner is going to receive an Acurite Lightning Detector! If you entered in our first drawing, check your email to see if you are the winner! Winners will be posted on the drawing web page (link below) once the winner has been contacted.

Our next bi-weekly weather-related giveaway has begun! Every couple weeks we will give away weather-related items like rain gauges, thermometers, barometers, hygrometers, lightning detectors, weather stations, weather radios, and related items. No purchase is necessary to have your chance to win! Each giveaway you will get to see what the item is, and then choose to enter via an online form. There is no catch -- we're just trying to drum up some traffic, so help us out and tell your friends!

You will have to re-enter for each giveaway because we don't want to send it off to someone who doesn't actually want the item. Each person can only register once. Your odds of winning will depend on the size of the entry pool.

This week's giveaway is an Acurite Weather Forecaster Wireless Digital Color Display! Go to https://t.co/J8kB3nQE9t to submit your email for a chance to win this week's item, and see a list of upcoming weather gadgets! Be sure to tell your friends!

[Andrew Revering @F5Weather]

This Week in Weather — June 30 - July 5

The first few days of July will be dictated by the jet laying way north, along the international border. This will help to build unusually hot air across the United States, with temperatures above normal, even for this time of year, across the east.

Highs could get to 100° or even warmer in cities like Washington D.C., Baltimore and Philadelphia. Even Detroit has a shot at 100° on Wednesday & Thursday.

Parts of the Southwest will be unusually cool for this time of year. Coastal Southern California will be in the 70s. Even most of the Desert Southwest will have highs only in the 90s early in the period, but those temperatures will creep up into the 100s by the weekend, with places like Yuma and Phoenix approaching 110° by Sunday.

It'll be wet across Florida where heavy rains are expected. The severe storms should primarily be from the Northern High Plains toward the Great Lakes and Northeast, into southern Canada. Several rounds of severe storms, and perhaps even a Derecho or two can be expected over the next several days in these areas. All facets of severe weather look possible, with primarily damaging high straightline winds, large hail and a few tornadoes being possible.

It should be largely sunny across the central and southern plains into the Rockies, with dry conditions over much of the west.

Wildfire smoke is building, especially over Colorado and adjacent states. Another batch of wildfire smoke is developing over western Quebec thanks to fires there as well. With the unusually warm summer heat in place, and dry conditions -- especially in the west -- more fires and additional smoke is expected to develop as we get deeper into summer.

See the latest at https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

Weather geek? -- New & existing F5Weather customers can add on 3 or even 5 years of subscription time to our weather forecast maps & data tables, and save hundreds of dollars!

It's a non-recurring one time fee, so there are no surprising charges afterwards. Eliminate those monthly fees and save money in the process. Enter coupon code BIGDISC at check-out, while it lasts! https://t.co/Va87y9pHkX

[Andrew Revering @F5Weather]

F5Weather has begun our bi-weekly Weather-related giveaways! We have begun a giveaway program where every couple weeks we will give away weather-related items like rain gauges, thermometers, barometers, hygrometers, lightning detectors, weather stations, weather radios, and related items. No purchase is necessary to have your chance to win! Each giveaway you will get to see what the item is, and then choose to enter via an online form. There is no catch -- we're just trying to drum up some traffic, so help us out and tell your friends!

You will have to re-enter for each giveaway because we don't want to send it off to someone who doesn't actually want the item. Each person can only register once. Your odds of winning will depend on the size of the entry pool.

This week's giveaway is an Acurite Lightning Detector! Go to https://t.co/J8kB3nQE9t to submit your email for a chance to win this week's item, and see a list of upcoming weather gadgets! Be sure to tell your friends!

[Andrew Revering @F5Weather]

This Week in Weather — June 23 - June 28

The jet stream this week will be relatively zonal, and reside across the northern tier of the country, until next weekend. Then on Saturday a significant system will come ashore in the Pacific Northwest and disrupt that flow, amplifying the jet. This will set the stage for more organized severe storms across the northern plains by Sunday into early next week.

But before then, isolated severe storms are expected from the Mid-Atlantic and Great Lakes through the Midwest and to the Front Range. The next few days an upslope flow in the central Rockies will coincide with a decent mid level flow and orographic lifting with surface based moisture to produce severe storms and tornadoes there. This will be especially true from the high plains of Wyoming, Colorado, Nebraska and Kansas.

Elsewhere, heavy rains and isolated severe storms will be possible from the Upper Midwest, through the Midwest and to the East Coast. It will be warmer than normal over Florida, Quebec, British Columbia and parts of the Southwest.

Cooler than normal conditions are expected across the Eastern Rockies and Upper Midwest to the Western Great Lakes.

It should be largely sunny from Texas into the Southwest toward the Central and Southern Pacific Coast. The one exception is over much of Utah, which is dealing with wildfire smoke from wildfires in Utah and Nevada.

See the latest at https://t.co/CB1e7ybMM2

[Andrew Revering @F5Weather]

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