DFW Heat Index & the Heat Advisory Criteria for North Texas

Currently at Dallas/Fort Worth (DFW) The temperature is: DFW’s heat index is: °F Current Conditions Around N. TX How many days until fall? It’s pretty much a given that summertime in North Texas will be hot. However, there is a fine line between “hot” and dangerously hot. In other words, “only” a few degrees can […]

Tropical Storm Colin Becomes Earliest “C” Storm on Record (June 5, 2016)

On Sunday June 5, 2016, Tropical Storm Colin formed in the Gulf of Mexico, making it the earliest “C” tropical storm on record.  View iWeatherNet’s tropical cyclone page for more information. See Also: January 2016 Hurricane Alex: Strongest Atlantic Winter Hurricane on Record The Earliest “C” Storms Found in the Historical Record For the Atlantic […]

Days Until Winter 2019 Countdown

2019 Winter Solstice Saturday, December 21 at 11:19 pm EST Duration of Winter 2019-20: 88 days, 23 hours, 30 minutes How many days until winter? Winter 2019 Begins In How many days until the first day of spring 2020?

May 24th, 2016, Western Kansas Tornado Outbreak

On Tuesday, May 24th, 2016, an outbreak of tornadoes occurred across western Kansas. There were 13 observed total tornadoes a cyclic supercell near Dodge City, Kansas including four sets of twin tornadoes, a set of triplets, and a large multi-vortex tornado and wedge tornado. So far, the National Weather Service in Dodge City, Kansas, surveyed 9 […]

Leoti, Kansas, and Woodward, Oklahoma, Supercells (May 21-23, 2016)

Saturday, May 21st, was the start of a week long period of severe weather across the Great Plains. From southern Texas to the High Plains in North Dakota, isolated tornadoes, large hail, and severe winds, were forecasted. Perusing model guidance the night before on Friday, May 20th, we had an idea of our target for Saturday: Western […]

Remembering the May 21-26, 2011 Tornado Outbreak

From May 21st to May 26th, 2011, destructive tornadoes tore through the Great Plains, impacting thousands of people and leaving billions of dollars in damage in its wake. During this time period, there were 241 total tornadoes, including two EF-5, three EF-4, eight EF-3, thirty-one EF-2, eighty-six EF-1, and one hundred [and] ten EF-0 tornadoes. […]

May 8th and 9th Central Plains Storm Chases

A multi-day dryline setup was in place across the central Plains on Sunday, May 8th; and Monday, May 9th, respectively. Observed conditions from radiosonde, or weather balloon, launches, indicated an environment conducive for widespread severe thunderstorms was starting to filter into the central Kansas and central Oklahoma region. Important to any storm chase is to […]

The Five Year Anniversary of the April 27th, 2011, Tornado Super Outbreak

April 27th, 2016, will be the five year anniversary of the April 27th, 2011, Super Outbreak of tornadoes that occurred across Dixie Alley in the southeastern United States. Between April 26th and April 28th, 2011, there were 363 total tornadoes. On April 27th alone, there were 219 tornadoes. This outbreak surpassed the 1974 Tornado Outbreak that […]

Dry line convergence & thunderstorm squall line formation

This phenomenon is NOT unusual, but it doesn’t always happen.  Today, the dry line and the resulting squall-line were perfectly aligned.  The data presented a teaching moment that I couldn’t pass up.  At the end of the animation, I zoom in so you can see the wind barbs pointing toward the dry line. The air […]

9 am Tuesday 4/26 partial surface analysis

Update on thunderstorm potential for tonight (Tuesday 4/26)

The Result [Tuesday 4/26 8:17 pm] ➡︎ NOTE: Read the original update from Monday 4/25. ***Quasi-Linear Convective System Has Evolved as Expected*** ***Moving toward DFW with winds of 65+ mph*** Winds of 65+ mph detected within the bowing segments… These will arrive in the metroplex over the next two hours… Some wind damage/power outages possible… […]

Forecast sounding for Fort Worth valid 7pm CDT April 26, 2016

DFW: Severe thunderstorms possible Tuesday Evening 4/26

I typically do not share model data because they can be very complex. I do want to show one of the state-of-the-art programs that I use in my operations to analyze model-simulated soundings. The models do not automatically compute these data; the additional software turns the raw output into meaningful information. At least one of […]

Mesoscale convective vortex (MCV) over southern Alabama on 3/24/16

On the afternoon of March 24, 2016, a stunning mesoscale convective vortex (MCV) formed within a mesoscale convective system as it moved over southern Alabama. I created the animation below using a sequence of radar images provided by the College of DuPage. What is an MCV (Mesoscale Convective Vortex)? An MCV is an area of […]

The Coldwater, Kansas, Supercell of March 7, 2016

On Monday, March 7th, 2016, a spectacular supercell formed in far northwestern Oklahoma and entered southern Kansas. A supercell is a thunderstorm that rotates. Conditions on Monday were favorable for a couple of supercells to initiate off the dryline in far western Oklahoma, and into western Kansas. However, given weak convergence along the dryline and meager […]

Snow Accumulation (Current): Snow Depth & Percent Coverage

Our high-resolution maps of accumulated snowfall are updated several times a day for the United States and much of Canada. ● Today’s Snow Cover Stats ● Interactive Map Snow Cover Map (Current – High-Resolution) Note: Refresh the browser if data fail to load Today’s Snow-Cover Percent, Depth, & Liquid Equivalent (SWE) These stats include the […]

Buy a Power Generator for Severe Weather Power Outages

Every emergency guide out there suggests you get a backup generator to power your home after the electricity goes out, so learning more about home generators work and what they can do is a must if you want to be prepared. Hurricanes, winter storms and even simple outages can happen at any time; no matter […]

A few thoughts on forecast techniques & forecast variance

Friday 2/12… For the sake of conversation, I wanted to share some thoughts about forecast variance (i.e., the tendency for forecasts to vary from one meteorologist to another), forecast advancements, and forecast techniques. It goes without saying that atmospheric prediction is *extremely* difficult and time consuming. During an active pattern, a forecast for a 36-hour […]

Light snow for Atlanta early next week (Feb 8-9)

Final Update [Tuesday, February 9, 2016] Forecast Verification  [Previous Forecasts Further Down the Page]     Forecast Update #2 for Atlanta – Posted Friday 2/5/16 ***No Forecast Changes*** ***Light snow Monday night/Tuesday*** ***Some light accumulations possible*** ◙ A strong cold front will bring drastic temperature changes to Georgia Monday night… ◙ To get caught up […]

How Many Days Until Spring 2020?

2020 Spring Equinox Thursday, March 19 at 11:49 pm EDT Duration of Spring 2020: 92 days, 17 hours, 54 minutes So how many days are left until Spring? Spring 2020 Begins In Related: How many days until summer? Number of days until fall 2019?

The 2016 Blizzard: Historic Snowstorm for the Ages

Brief Overview of the Storm’s Evolution SST Anomalies Evolution of the Surface Low (Animation) After the surface low emerged over the anomalously warm ocean water on the morning of January 23, it deepened and intensified for another 12 to 15 hours with the central pressure reaching a minimum of 983 mb on the evening of […]

January will end with springlike temperatures in North Texas

Forecast Update [Saturday 1/30 7:45 am] ***80º today ~ 25 deg above normal*** ***Wind gusts to 40 mph late afternoon/tonight*** This is an update to the original forecast from Monday 1/25 — The only change is to raise high temperatures for today as I mentioned would be possible in the Monday forecast update. The springlike […]

Snow Forecast for Atlanta Friday night

➡︎ Quick Links: ● Latest update ● Initial forecast (Tues 1/19) ● Snow forecast ● Radar Special Update (Thursday 1/21 3:30 pm) Flood Watch now in effect for tonight through Saturday morn Winter Weather Advisory for accumulating snow effective Fri 3 pm – Sat 7 am. NOTE:  I do not expect any snow in the […]

Hurricane Alex: Strongest Atlantic Winter Hurricane on Record

January 14, 2016 (1 pm EST) Max-Sustained Wind: 75 kt / 85 mph / 981 mb / Category 1 View the list of active tropical cyclones Interesting Statistics about Hurricane Alex Alex is only the 2nd-known Atlantic hurricane to form during the month of January since records began (partial record as far back as 1842). […]

Tropical Storm Alex in January? How rare are winter tropical storms?

Special (1/14/2016) Alex became a hurricane on Thursday Jan 14, 2016 Update [Wednesday January 13, 2016 at 5 pm AST] Sub-Tropical Storm Alex has formed in the East Atlantic.  As discussed below, Alex is only the second-known storm to form during the month of January in the 174-year database (1842-present). ➡︎ See also:  Forecast #1 […]

Atlanta: December 2015 is Atlanta’s warmest December on record

December 2015 was unseasonably warm for Atlanta, Georgia.  The temperature fell below freezing only one time, on December 19th when the low temperature was 29ºF. The day prior, on December 18th, the low was only 32ºF. In 2015, the average temperature (combined high and low) was 57.5ºF, which breaks the record previously set 126 years […]

Rainfall data for 2015 at DFW and the 117 year trend

DFW: 2015 is the wettest year on record for Dallas/Fort Worth

Rainfall Records for DFW (Since Records Began) : Rainfall so far this year DFW Records Summary: 2015 is the wettest year on record (rainfall in 2015) Wettest November on record The most rain ever recorded on any day in November (11/27/15) The greatest 2-day total ever recorded within the 215 days between September 23 and […]