10 p.m. - All 64 Tulsa street crews to work on roads overnight, focusing on bridges and overpasses. - Dan Pearlman
8 p.m. - EMSA has responded to 25 motor vehicle accidents, according to spokewoman Kelli Bruer.
6:20 p.m. - Sleet and snow mix falling in Woods, Alfalfa, Blaine and Major County. Use extreme caution. Possibility of slick spots remains in Woods, Alfalfa, Blaine, Garfield, Grant and Major counties.
4:18 p.m. - Tulsa International Airport not experiencing serious delays or cancellations. Some delays of 20-40 minutes expected. Check flight info here.
4:09 p.m. - EMSA spokeswoman Kelli Bruer says paramedics have now responded to 22 motor vehicle collisions, which have resulted in nine transports. EMSA has also received calls for five outdoor falls, and have transported three. No injuries have been serious or critical.
3:56 p.m. - No Tulsa streets are closed due to weather.
2:25 p.m. - EMSA spokeswoman Kelli Bruer says paramedics have responded to 20 motor vehicle collisions and four outdoor, slip-n-fall injuries in the Tulsa metro area. None were serious or critical.
1:22 p.m. - There is still light snow falling in Tulsa, Creek, Okmulgee and Rogers Counties. Snow accumulations on grassy areas but most roads are just wet now. Caution still advised for icing as we get into evening hours. Bridges and overpasses may still be slick. From DPS.
12:27 p.m. - City of Tulsa street crews are treating arterial streets with salt. As of noon, the City's green waste collection crews were diverted to street maintenance duties, so collection is behind. Supervisors in the STreets & Stormwater Department continue monitoring forecasts and street conditions and crews will remain on duty as long as conditions require.
12:17 p.m. - Snow continues but has lightened up. Street crews monitoring and sanding heavily traveled roads. So far roads are fine, just wet - Reporter Brandon Richard.
11:12 a.m. - Pine Street is closed from 177th East to 193rd East Avenue in Catoosa because vehicles keep sliding off the road on the hill - Reporter Casey Roebuck.
10:30 a.m. - Turner Turnpike has become extremely hazardous east of Stroud. Travel is discouraged.
10:15 a.m. - From SH18/US60 to the south and east roads are snow covered to the west roads are slushy.
10 a.m. - Troopers are reporting slick and hazardous roads in Wagoner, Cherokee, Adair, Muskogee, Sequoyah and Haskell counties. Moderate to heavy snow is falling in the area and roads are covered with thick slush, creating problems for some driveers. Temperatures are dropping and the roads will become hazardous quickly.
9:46 a.m. - EMSA spokeswoman Kelli Bruer says paramedics have responded to 12 injury motor vehicle collisions since 7:45 a.m. On an average day, Bruer says EMSA responds to only about two or three collisions. Paramedics have also responded to three slip-and-fall injuries.
9:23 a.m. - Roads in Tulsa, Rogers, Creek and Okmulgee counties are becoming slick and hazardous. Numerous collisions in Tulsa at this time. Caution is advised.
9:04 a.m. - Moderate snow falling in Bartlesville. City street crews have stand trucks on patrol, hitting bridges and overpasses. No accidents reported. Snow not sticking to roads. Conditions will be monitored throughout the day and night.
8:55 a.m. - I-44 slushy in the Sapulpa area, visibility low - Reporter Liz Bryant.
8:15 a.m. - Caddo and Grady counties are experiencing blizzard like conditions. Travel is discouraged. Comanche Cotton, Jefferson and Stephens counties are experiencing moderate rainfall at this time. Use caution while traveling.
8 a.m. - Roads are wet and now getting accumulation on grassy areas and roadways in Tulsa and Creek counties. I-40 at Henryetta area in Okmulgee County is slushy and becoming hazardous.
7:55 a.m. - Woods, Alfalfa, Major, Garfield, Grant, Blaine and Kingfisher counties receiving heavy snow and winter precipitation. Roadways have deteriorated throughout the morning hours. Travel is discouraged.
7:26 a.m. - Tulsa Police Department now on " Operation Slick Streets ." Officers not responding to non-injury collisions. Instead of calling police, police say drivers should exchange insurance information. Incidents can then be reported by filling out a form available at most QuikTrip's or online at http://bit.ly/VllWof .
7:19 a.m. - City of Tulsa street crews now driving city's routes, monitoring road conditions.
6:53 a.m. - DPS reports slick bridges and overpasses in Creek, Tulsa and Rogers counties.
6:36 a.m. - Garvin, Pontotoc counties receiving heavy snowfall at this time. Murray, Johnston counties receiving a mix of rain/snow. Love, Carter and Marshall counties receiving moderate rain. All temperatures at or below freezing. Motorist encouraged to use caution and reduce speed.
6:30 a.m. - Light snow beginning in the Tulsa area, road conditions remain mostly normal throughout the state.
6:22 a.m. - Heavy rain, intermittent snow falling in the Central Oklahoma