Month: June 2009

Thursday and Thursday night:

…OH VALLEY THROUGH TN VALLEY AREA…
   
   DAMAGING WIND AND LARGE HAIL ARE EXPECTED TO BE THE
   PRIMARY THREATS WITH  SCATTERED TO ISOLATED ACTIVITY IN THE CINCINNATI AREA.

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Friday and Friday night:

A POTENTIALLY SIGNIFICANT SEVERE WEATHER EVENT COULD EVOLVE DURING
   THE DAY2 PERIOD FROM PORTIONS OF THE MID MS VALLEY ACROSS THE OH
   VALLEY REGION AS STRENGTHENING FLOW ALOFT SPREADS ATOP A VERY
   UNSTABLE AIRMASS.  A POTPOURRI OF HAZARDOUS WEATHER CAN BE EXPECTED
   WITH LARGE HAIL…DAMAGING WINDS AND PERHAPS TORNADOES.

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It looks like an unsettled weather pattern with a daily severe weather threat through Saturday.  It will not rain all the time.  In fact, it will be dry, hot, and humid more than it is wet.  However, periodic thunderstorms with the potential for damaging wind, hail, and an isolated tornado will be possible for the next 3 days.

Today, the atmosphere will destabilize into the afternoon with the approach of a weather system, so keep your eyes to the skies.

This week’s Palmer Drought Index moved east-central Ohio into the moderate drought category.  Dry conditions extended back into southwest Ohio.  Rather localized heavy thunderstorms drenched parts of southwest Ohio Sunday with 1.40 inches at Hamilton-Fairfield Airport, 1.24 inches at Cheviot 0.9 SSE, and 2.20 in Sherwood Anderson Township.  The Sherwood location has had copious rainfall, over 6 inches, in the past month.

Whether or not you’ve seen the rain thus far, more heavy rain is expected over the next five days.  Some areas could be measuring rainfall by the inches, and severe storms are also possible.  Therefore, widespread drought does not appear to be a concern.  In fact, if the forecast holds, standing water, localized flooding, and root rot may be more likely than anything else.

Palmer Drought Index:  http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/regional_monitoring/palmer.gif

Drought Monitor:

http://drought.unl.edu/dm/monitor.html

CoCoRaHS reports:

http://www.cocorahs.org/ViewData/ListDailyPrecipReports.aspx

3 day rainfall forecast:

http://www.hpc.ncep.noaa.gov/qpf/d13_wbg.gif

Excessive rainfall outlook:

http://www.hpc.ncep.noaa.gov/qpf/94ewbg.gif