You had one job, Ticker. ONE JOB! And that was to send OCTOBER'S U.S. Monthly Drought Outlook...not Septembers.
Here's a link to the new one. Will now go eat the egg off my face.
http://www.cpc.ncep.noaa.gov/products/expert_assessment/month_drought.png
MESONET TICKER ... MESONET TICKER ... MESONET TICKER ... MESONET TICKER ... October 1, 2015 October 1, 2015 October 1, 2015 October 1, 2015
Drought Charges Ahead During September
http://ticker.mesonet.org/archive/20151001/september.jpg
As we enjoy the rain
http://ticker.mesonet.org/archive/20151001/oklahoma-radar.png
and a few days worth of fall
http://ticker.mesonet.org/archive/20151001/current-temps.png http://ticker.mesonet.org/archive/20151001/nws-norman-7day.jpg
we have but one message for September: way to go, loser! You had one job. ONE JOB! And that was to keep pace with 1957 for the wettest year on record. But what did you do? You went all dry on us, allowed flash drought to flourish, and ended as the 33rd driest (and 15th warmest, which didn't help matters any) September on record. So now we're pushed back to 4th place, 2.46 behind 1957's record-setting pace of 41.3 inches. We're also behind 1915's 40.49 inches, and 1945's 39.78 inches.
1915, for crying out loud! You know what happened in 1915? Well, nothing!
Okay, there was that whole "Typhoid Mary" incident. And WWI. But other than that...meh.
At any rate, here's a look back at September, a dry, hot month that saw drought spread and little else. -------------------------------------------------------------------------------
Flash drought continued to spread across southern Oklahoma during a dry, hot September, and had enveloped nearly 17 percent of the state by month?s end.
http://ticker.mesonet.org/archive/20151001/20150929_OK_trd.png
According to preliminary data from the Oklahoma Mesonet, the statewide average rainfall total was 1.43 inches below normal at 2.1 inches, the 33rd driest September since records began in 1895. It was particularly dry across south central and southeastern Oklahoma, areas that had seen record rainfall from April through July. The Mesonet site at Idabel recorded a measly 0.38 inches of rainfall for the month, nearly 4 inches below normal and the lowest total in the state. Eighteen of the 119 Mesonet sites recorded less than an inch of rain during September, concentrated mostly in southern Oklahoma. Fifty-seven stations received less than 2 inches. There were a few isolated areas that had good moisture, however. Oilton reported 7.5 inches, and seven other stations recorded at least 4 inches of rain.
http://ticker.mesonet.org/archive/20151001/sept-rain-depart.png http://ticker.mesonet.org/archive/20151001/sept-rain-pct.png http://ticker.mesonet.org/archive/20151001/sept-rain-totals.png
The dry September combined with a dry August to enable the flash drought to develop and intensify. The August-September statewide average of 4.54 inches was over 2 inches below normal and the 33rd driest on record. In some cases, the deficits stretch even farther back. Madill in south central Oklahoma recorded nearly 43 inches of rain between April 13 and July 8, but only 1.16 inches since. Idabel, so dry during September, has seen less than an inch dating back to July 9. The drier than normal months also took a bite out of 2015?s chances to eclipse 1957 as the wettest year on record for Oklahoma. The January-September statewide average rainfall total of 38.84 inches is still 10.45 inches above normal, but fell to fourth place in the rankings behind 1957?s top mark of 41.3 inches. The record-setting total that year was 47.88 inches. In order to surpass 1957?s total, 2015 has a mere three months to add another 9 inches. The normal October-December precipitation total for Oklahoma is 8.11 inches.
Despite a few cool spells, the majority of September was warmer than normal, and emphatically hot at times. Those periods of intense heat further worsened moisture stress on the state and invigorated the flash drought. The statewide average temperature according to preliminary Mesonet data was 76.3 degrees, 4 degrees above normal to rank this September as the 15th warmest on record.
http://ticker.mesonet.org/archive/20151001/sept-tavg-depart.png http://ticker.mesonet.org/archive/20151001/sept-tavg.png
The Mesonet recorded its last triple-digit temperature for the year, barring any unusual October occurrences, on Sept. 17 with readings of 103 degrees at Freedom and Buffalo. September?s highest temperature was 108 degrees at Freedom on the seventh while the lowest was a chilly 42 degrees at Kenton on the 19th. September boosted the year-to-date average temperature to 63.6 degrees, 0.2 degrees above normal, to rank the January-September ranking to 47th warmest.
Although most of the state remains drought free, the latest U.S. Drought Monitor report does show over 30 percent of the state in ?abnormally dry? conditions. While that designation is not considered drought by the Drought Monitor, it can be considered a pre-cursor to further drought development. Of the 16.79 percent of the state in drought, 10.42 percent was considered ?moderate,? 5.4 percent ?severe? and 0.97 percent ?extreme.? The Drought Monitor?s intensity scale slides from moderate-severe-extreme-exceptional, with exceptional being the worst classification.
The October precipitation outlook from the Climate Prediction Center (CPC) indicates increased odds of above normal moisture for the southwestern half of the state. The temperature outlook was non-committal with equal chances of above-, below- or near-normal conditions.
http://ticker.mesonet.org/archive/20151001/october-precip-outlook.gif http://ticker.mesonet.org/archive/20151001/october-temp-outlook.gif The precipitation outlook lends confidence for possible drought relief. The U.S. Monthly Drought Outlook portrays the drought stricken areas in southern Oklahoma as seeing drought either improving or disappearing by the end of the month.
http://ticker.mesonet.org/archive/20151001/october-drought-outlook.png
Gary McManus State Climatologist Oklahoma Mesonet Oklahoma Climatological Survey (405) 325-2253 gmcmanus@mesonet.org
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