The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| event_type | Drought |
|---|---|
| ncei_event_id | 5,710,603 |
| episode_id | 2,411,955 |
| begin_utc | 1999-07-01T05:00:00+00:00 |
| end_utc | 1999-08-01T04:59:00+00:00 |
| state | DISTRICT OF COLUMBIA |
| cz_type | Z |
| cz_name | DISTRICT OF COLUMBIA |
| deaths_direct | 0 |
| deaths_indirect | 0 |
| injuries_direct | 0 |
| injuries_indirect | 0 |
| wfo_source | OFFICIAL NWS OBS. |
| episode_narrative | High pressure was the dominant weather feature during the month. This forced most rain producing storm systems to steer north of the area and resulted in the continuation of the climatological, meteorological, and hydrological drought that has plagued the region since last summer. This was the 2nd warmest July on record, with an average temperature of 82.9 degrees. Record high temperatures were set on the 5th and 6th, and temperatures rose above 90 degrees on 22 of the 31 days. By the last week of July the Palmer Drought Index, a measure of long term drought conditions, indicated the Washington D.C. metropolitan area was in an extreme drought. July was the 10th month in the past 12 months that precipitation was below normal. From August 1998 through July 1999 precipitation was a staggering 14. 5 inches below average, the 2nd driest 12 months on record. Reagan National Airport reported a monthly rainfall total of only 1.01 inches, 2.79 inches below normal. Measureable rain only fell on 8 days during the month. The lack of precipitation affected water reserves. The flow of water past Washington D.C. has been below average for the last 11 months. During July, the average daily flow of the river was only 18% of the long term average. Many upstream tributaries also reported extremely low water levels. For the first time, water was released from the Randolph and Little Seneca reservoirs near the Potomac headwaters on July 11th and 15th respectively to help maintain a safe water level for wildlife and human consumption. |
| year | 1,999 |
Provenance
This slot's source list is not carried on the manifest row; open the dossier below.
Storage: spine