Wednesday, September 10, 2014

UPDATED: Tuesday Night/Wednesday Morning Rain

Rain moved into the Stateline area Tuesday night and continued through Wednesday morning. Thunderstorms stayed to the south of the viewing area, but we still picked up decent rainfall amounts. Many of us saw 1-2" of rain. Here's a look at some of the rainfall totals as of Tuesday evening:

Rain Totals Reported to the NWS
Rain Totals from NWS Weather Stations

Sterling: 1.48"
Newark (WI): 1.35"
Dixon: 1.26"
Paw Paw: 1.18"
DeKalb: 0.86"

Just south of the view area, Mendota saw some flooding with water covering parts of Route 251 and Route 34.

Tuesday, September 9, 2014

Tuesday Night Severe Weather Update

We are still monitoring the chance for severe weather and flooding across the Stateline Tuesday night into Wednesday morning.

The latest satellite and radar has a few showers in the Stateline with the bulk of Tuesday night's storms still off to our southwest. Those storms are expected to move in closer to midnight.

The primary concern will be flooding. A Flash Flood Watch is in effect for the entire Stateline through Wednesday morning. Most areas are looking at 1-2" of rain through the morning. Areas with stronger thunderstorms could see locally heavier amounts up to 4-5".

The secondary concern will be damaging winds. Even if we don't see any severe-strength winds, it will be breezy throughout the day Wednesday.

Storms will start wrapping up Wednesday afternoon with no major weather events expected for the rest of the week. -BA

Monday, September 8, 2014

Big Changes Coming In Forecast

Don't get used to the quiet weather we saw to start the work week. Plenty of big changes are coming over the next 48 hours.

Storms will be possible overnight Monday and into the day Tuesday, but storms become likely Tuesday night into Wednesday morning. These storms have the potential for heavy rain and even severe weather. Futurecast has the bulk of these storms rolling through Wednesday morning with our next low pressure system.

The timing of these storms should help suppress the severe threat a little, but we'll still have to keep an eye out for a few stronger storms. Typically, severe weather is more likely during the afternoon when storms can feed off the heat and humidity of the day. Since our storms will be mainly at night or early in the morning, our severe chances are reduced. Tuesday's severe threat should stay mostly to our west. Wednesday's severe threat will be mainly to our south. If we do see severe storms, damaging winds will be the biggest concern.

Heavy rain will be the most likely problem with this next system. Models are indicating that a good 1.5"-2" of rain will be possible through Wednesday evening. If we do see severe storms, locally higher amounts will be possible.

After these storms move out, an incredibly chilly blast of air moves in for the rest of the week. Right now, Friday will be the worst of the cold with highs potentially not making it out of the 50s. -BA

Friday, September 5, 2014

Friday Severe Weather Update

2:00pm Update: Severe T-Storm Warning for central DeKalb County until 2:30pm. Warning includes the cities of DeKalb and Sycamore. 60mph winds are possible.

Thursday, September 4, 2014

September 90s

The forecast high for the Rockford area today is 90°. A warm front passing through the area combined with strong winds from the south and minimal cloud cover are all contributing to the surge in heat. There has been some cooling this morning because of thunderstorms and cloud cover, so temperatures could be held back a bit this afternoon if the clouds hold together longer than expected. Highs in the 90s are more likely to the south and west of Rockford with heat index values in the mid and upper 90s.

But how likely are 90s in September? Looking back at past climate data, you can see that last year we had four 90 degree days. That number decreases every year we go back. In 2009, we saw no 90 degree days in September. While it's not extremely likely, it does happen occasionally.

We still could still hit 90 degrees here in Rockford on Thursday, but we will have to keep an eye on the clouds to see how long they hold together. Either way it will still be a humid day. Dew points in the low 70's will make for a sticky afternoon. The heat doesn't last long, though, as we drop into the 70's for the rest of the week! -KC

Wednesday, September 3, 2014

Don't Be Fooled: Late Season Heat Can Still Be Deadly

We haven't seen much extreme heat this summer, so when Thursday's forecast calls for a high of 90°, it's important to remember heat safety. Most of the reminders are obvious. Drink plenty of water. Wear light-colored and loose-fitting clothing. But the most important tip to remember is NEVER leave children or pets in a car. We've heard national stories all summer long of children being left in hot cars. Here's another reminder why that is so dangerous.

Data Provided by NWS Chicago
When the outside temperature is 90°, the temperature inside a closed car can top 100° in less than 10 minutes. After 30 minutes, the temperature inside a car is already flirting with 120°. Give it an hour and that temperature is almost 140°.

If you're out and about Thursday, remember the dangers of the heat and prepare according. The heat may not stick around for long, but it can still be dangerous. -BA

Tuesday, September 2, 2014

Are You Weather-Ready for Fall?

We haven't promoted this much yet, but the First Warn Weather team is the official Weather-Ready Nation ambassador for the Stateline. That means it's our goal to keep you prepared for extreme weather all year long.

As you may know, Monday was the official start to meteorological fall. With the changing seasons comes changes to our weather pattern, but severe weather can happen at any time. The two biggest threats we deal with this time of year are flooding and tornadoes, but this is also a good time to start preparing for winter. Whether it's a weather radio or an emergency kit, there are many great tools you can have to keep you safe. Below is more information on how to prepare for all these scenarios so you can "Be A Force of Nature". -BA

Flood Safety:

Tornado Safety (Including where to go during a tornado):

Winter Safety
Build Your Emergency Kit:
Weather Radio Information: