Below normal rainfall for May

May 30th, 2012 at 10:43 am by under 4 Warn Weather

Written by Brittanny Snyder:

Brittanny is an weather intern and currently studies meteorology at SUNY Brockport.

While areas south of Buffalo have received plenty of rain lately, Buffalo and the Niagara Frontier have remained quite dry.  Yesterday, storms brought over 1.25” of rain to some places south and east of Buffalo.  Overall, in terms of precipitation, the northeast has been exceptionally dry. Buffalo is below normal for what you would expect this time of year.  So far, we have only 0.90” of rainfall this month. The normal value for precipitation in the month of May is 3.22”. Last year, Buffalo received an above normal amount of precipitation for the month of May totaling 8.09”.

Since January 1st, Buffalo has received 11.95” of precipitation.  The normal value is 14.77” and last year’s amount at a whopping 23.43”.

In response to such below normal precipitation amounts in Buffalo, topsoil moisture is struggling. According to the U.S. Drought Monitor, New York is being classified as dry with a percentage of topsoil moisture near 37% which is below the five year mean.  Although precipitation amounts are below normal, the northeast is not in a drought, as of yet.

To see Rainfall totals for Buffalo, NY click here: http://www.nws.noaa.gov/climate/getclimate.php?wfo=buf

To see Topsoil Moisture Percentages for the U.S, click here: http://www.cpc.ncep.noaa.gov/products/monitoring_and_data/soilmmap.gif

To see the U.S. Drought Monitor, click here: http://droughtmonitor.unl.edu/monitor.html

14 Responses to “Below normal rainfall for May”

  1. Don Paul says:

    Here is an NWS summary and discussion on yesterday’s severe weather outbreak:

    http://www.erh.noaa.gov/buf/svrwx/122905/5-29-12.html

  2. C from P says:

    Looks like the NWS has some decent qpf in their Friday point ‘n click forecasts for both metro Buffalo and areas farther North in Niagara County. Hopefully it will help put a dent in the moisture deficit.

  3. lois says:

    My section of Allegany Cty. measured 1.5″ in rain guage from yesterdays storm. Presently, 75 degrees but feels as tho we could have an isolated shower. Radar points to this also.

  4. Dave from Roc says:

    Here’s an article about possible man made changes to Lake Ontario that could soon have consequences (arguably, good for nature, bad for property) along the entire lake Ontario shore line:

    http://www.watertowndailytimes.com/article/20120527/NEWS03/705279838

  5. Don Paul says:

    As I already pointed out last night in a previous thread, there is the likelihood of widespread showers, if not stratiform rain, on Friday. However, there are now also signs of some convective elements entering the picture Friday afternoon, which could produce some spotty heavier amounts.

    Lois, not sure what you’re looking at, but radar does not point to any isolated shwr in your region, either from State College or Buffalo. Are you sure you don’t mean satellite imagery? I could see a sprinkle or 2 in the developing sct clouds down your way.

    Weekend showers look scattered and generally lighter, with more activity in dirurnal afternoon heating. Not that there’s going to be too much heating, especially on Saturday–but we could see a few breaks. Better chance of breaks on Sunday.

  6. Dave from Roc says:

    Now this is the kind of NAO we’d like to see in December (well, some of us). I suspect the indices have something to do with the troughy pattern which looks to keep reinforcing itself across the east over the next week or so?

    http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/new.nao_index_ensm.html

  7. lois says:

    SPC update at 1630Z has this locale is at the edge of mod risk for convection. Suppose it could include “lightning.” Anyway, my old bones says rain will happen today in parts of Alleg.Cty. Bets anyone??

  8. Thinksnow12 says:

    Latest NWS Text at 3:33p states that we could be looking at an 1″ or so on Friday due to the remnants of Beryl. However, the outlook has changed a bit as it now appears that the forecast through next Wednesday has us under the trough and more rain chances next monand tues and below normal temps.

  9. Don Paul says:

    Beryl may throw some extra water vapor into the eastern US atmosphere, but in no way will we be impacted by the remnants of its circulation:

    http://www.nhc.noaa.gov/refresh/graphics_at2+shtml/143138.shtml?5-daynl#contents

  10. Don Paul says:

    Both the operational Euro & GFS are very aggressive in keeping a cutoff low near the NE through much of next week, retarding the progress of a central US ridge from moving east very much. The ensemble mean in the MREF is only slightly less adamant about that trend.

Leave a Reply