Temps | Gusts | WU KORD KPWK

CLICK for this month's BIG night sky ...




Cardinal SAT


MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.


Tuesday, February 7, 2023

SPC Feb 7, 2023 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1150 PM CST Mon Feb 06 2023 Valid 071200Z - 081200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHEAST TEXAS... ...SUMMARY... Isolated strong to severe thunderstorms are possible this evening and overnight across portions of southeast Texas. ...Texas... Late Monday evening satellite imagery depicts a notable upper trough shifting slowly east toward the southern Rockies. This feature is forecast to eject into the southern High Plains by early Wednesday morning. Given the slow movement of the trough, appreciable height falls will lag the cold front, and large-scale forcing should remain fairly weak across the warm sector. Currently, scattered convection has developed along the cool side of the boundary over Oklahoma. This elevated activity is driven in large part by low-level warm advection which will be the predominant forcing mechanism for convection through the period. Surface dew points have risen into the mid 50s to lower 60s across the warm sector over east TX. While surface dew points may continue to rise a few degrees, warm 700mb temperatures will cap the warm sector most of the period. Weak lapse rates will also limit overall buoyancy across this region. Latest thinking is warm advection will drive episodic convective bouts within a post-frontal regime most of the period. However, during the latter half of the period, uncapped surface-based buoyancy will develop from the middle TX Coast into portions of southeast TX. Forecast soundings suggest some supercell threat, though low-level shear is not expected to be that strong. Greatest risk with this activity is isolated damaging wind gusts and perhaps a brief tornado. ..Darrow/Weinman.. 02/07/2023 Read more CHECK UPDATE ZOOM GRAPHIC
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)