Archive for February 2007
Currently under a Day 2 Moderate risk for tornadoes tomorrow:
…AR/MO/IL…LOWER OH VALLEY REGION…
PRIOR-OVERNIGHT SVR POTENTIAL DESCRIBED IN DAY-1 OUTLOOK IS EXPECTED
TO CONTINUE UNABATED THROUGH EARLY DAY-2 PERIOD…WITH DAMAGING WIND
AND TORNADOES BEING MAIN CONCERNS. ONE OR MORE LINES OF SVR TSTMS
ARE EXPECTED TO SWEEP NEWD ACROSS OZARKS AND ADJACENT PORTIONS
MO/AR…THEN INTO WRN/SRN IL THROUGH MIDDAY. DEEP-LAYER VERTICAL
SHEAR PROFILES ARE STRONGLY FAVORABLE FOR BOWS AND SUPERCELLS.
BUOYANCY WILL BE MRGL…WITH MLCAPES GENERALLY UNDER 500
J/KG…HOWEVER MODIFIED FCST SOUNDINGS SUGGEST SFC-BASED INFLOW IS
POSSIBLE AS FAR N AS PORTIONS IL/INDIANA. FAST STORM MOTIONS
EXCEEDING 45 KT ARE LIKELY…WHICH WOULD ENHANCE THREAT OF
LONG-TRACK TORNADOES FOR ANY RELATIVELY DISCRETE/SUSTAINED
SUPERCELLS THAT CAN DEVELOP IN THIS ENVIRONMENT.
...ICE STORM WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS ISSUED AN ICE STORM WARNING...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. FREEZING RAIN WILL CONTINUE INTO THE AFTERNOON HOURS...THEN CHANGE TO ALL RAIN BY THIS EVENING. ICE ACCUMULATIONS AROUND A QUARTER OF AN INCH HAVE ALREADY OCCURRED IN A FEW LOCATIONS. AN ADDITIONAL ONE OR TWO TENTHS OF ICE IS STILL EXPECTED. THE HEAVY ICE ACCUMULATION COMBINED WITH STRONG EAST WINDS GUSTING TO 40 MPH AT TIMES WILL CAUSE SOME TREES AND POWERS LINES TO COME DOWN. AN ICE STORM WARNING MEANS SIGNIFICANT ICE ACCUMULATIONS OF ONE- QUARTER INCH OR MORE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS HAZARDOUS OR IMPOSSIBLE...SO ONLY TRAVEL IN AN EMERGENCY AND TAKE YOUR WINTER SURVIVAL KIT. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO FALLING TREE BRANCHES...SNAPPED POWER LINES AND LOSS OF POWER.
Thursday is March 1st…bring on the storms!
Currently under a Winter Storm Warning with a possible upgrade to Blizzard Warning; expecting 10+ inches of snow here.
Storm Chasing news: Plains trip from May 19-28
