NWS SPC Mesoscale Discussion
SPC MD 171
MD 0171 CONCERNING TORNADO WATCH 22... FOR PARTS OF WRN INTO CNTRL AR
MESOSCALE DISCUSSION 0171
NWS STORM PREDICTION CENTER NORMAN OK
0518 PM CST WED MAR 10 2010
AREAS AFFECTED...PARTS OF WRN INTO CNTRL AR
CONCERNING...TORNADO WATCH 22...
VALID 102318Z - 110045Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 22 CONTINUES.
THE THREAT FOR ISOLATED TORNADOES IS EXPECTED TO INCREASE ACROSS WW
AREA THROUGH 03Z.
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SPC MD 170
MD 0170 CONCERNING TORNADO WATCH 21... FOR PORTIONS OF MS/AL
MESOSCALE DISCUSSION 0170
NWS STORM PREDICTION CENTER NORMAN OK
0515 PM CST WED MAR 10 2010
AREAS AFFECTED...PORTIONS OF MS/AL
CONCERNING...TORNADO WATCH 21...
VALID 102315Z - 110015Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 21 CONTINUES.
THREAT OF SEVERE HAIL AND ISOLD TORNADOES CONTINUES ACROSS PORTIONS
OF MS/AL. A WW MAY BE NEEDED WEST OF THE CURRENT WATCH AS CONVECTION
GRADUALLY DEVELOPS UPSTREAM.
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Glendora Random Weather Fact
SEVERE WEATHER
Most of the severe weather is seen in the LA Metro area, is caused by micro bursts--not tornadoes. A "micro burst" is a small area of rapidly descending air beneath a thunderstorm. When the descending air hits the ground, it quickly spreads out in all directions, causing very strong, straight-line winds. These winds are commonly as strong as 40-60 mph but can exceed 100 mph at times. Micro bursts occur over a rather small space-scale, typically the area affected is less than 2.5 miles in diameter.
