NWS SPC Mesoscale Discussion

SPC MD 171

MD 0171 CONCERNING TORNADO WATCH 22... FOR PARTS OF WRN INTO CNTRL AR
      
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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
      
MD 0170 Thumbnail Image

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.