Weekly Global Climate Highlights

1. Northeastern Alaska and Northwestern Canada:

COLD CONDITIONS DEVELOP Temperatures were 2°C to 6°C below normal across the region, with lows ranging from 1°C down to -5°C [COLD - Up to 5 weeks].

2. British Columbia:

DRY ANOMALY DEVELOPS Fewer than 25 mm of rain fell on British Columbia during the past week as unusually dry conditions overspread the province. During June and July, less than 200 mm of rain accumulated on British Columbia, yielding 8-week shortfalls of 50 to 165 mm [DRY - Up to 8 weeks].

3. Southern High Plains:

RAINFALL DEFICITS PERSIST A few isolated showers yielded up to 100 mm of rain, but most of the southern High Plains received little or none. Generally less than 200 mm of precipitation accumulated during the last 13 weeks, resulting in moisture shortages of 50 to 150 mm. See the United States Drought Monitor for complete details [DRY - Up to 15 weeks].

4. Eastern United States:

PROLONGED DRYNESS CONTINUES Scattered showers delivered 25 to 100 mm of rain to the southern portions of the Appalachians and Piedmont and to some areas of Pennsylvania and southeastern New York. Precipitation totaled 100 to 320 mm during the last 13 weeks, yielding moisture deficits of 75 to 340 mm. According to press reports, significant water conservation measures have been implemented in many jurisdictions. The current situation is more thoroughly covered in the United States Drought Monitor [DRY - Up to 21 weeks].

5. Central South America:

UNUSUALLY MILD CONDITIONS OVERSPREAD REGION Weekly departures of +2°C to +6°C dominated South America from central Argentina northward to southern portions of Bolivia and Brazil. Highs were in the thirties (°C) except across central Argentina, where readings were in the twenties (°C). Subfreezing lows were confined to La Pampa [WARM - Up to 3 weeks].

6. Northern Europe:

WARM ANOMALY PERSISTS Temperatures were 4°C to 10°C above normal across most of northern Europe, with highs in the twenties (°C) and lows above the freezing mark throughout the region [WARM - Up to 8 weeks].

7. Central and Eastern Europe:

A FAVORABLY DRY WEEK Moderate precipitation (25 to 50 mm) was restricted to the Alps while lighter amounts (up to 25 mm) were reported elsewhere. The lack of precipitation assisted in flood recovery operations [WET - Up to 9 weeks].

8. Western Sahel:

MOISTURE SHORTAGES GROW AS ABOVE-NORMAL TEMPERATURES PERSIST Although weekly precipitation totals reached as high as 100 mm, 8-week rainfall accumulations varied from 60 to 230 mm, with short-term moisture deficits of 150 to 500 mm [DRY - Up to 9 weeks]. Temperatures averaging 2°C to 4°C above normal and highs of 35°C to 45°C exacerbated the dry conditions across the region [WARM - Up to 5 weeks].

9. South Africa:

PRECIPITATION SURPLUSES ACCUMULATE Between 25 and 100 mm of rain fell on the southern portion of South Africa during the past week. Between 170 and 655 mm of precipitation has accumulated during June and July, resulting in short-term moisture surpluses of 100 to 300 mm [WET - Up to 9 weeks].

10. Central Asia:

STILL UNUSUALLY WARM Weekly departures of +6°C to +8°C prevailed across Mongolia while temperatures were 2°C to 6°C above normal in south-central Siberia and western China. Highs were generally in the thirties (°C), with the mercury pushing above 40°C at a few locations in northwestern China [WARM - Up to 11 weeks].

11. Pakistan and Northwestern India:

PRECIPITATION DEFICITS REMAIN Moderate to heavy rains (25 to 200 mm) fell on west-central and north-central India, but fewer than 25 mm of precipitation were reported further north and west. Between 100 and 1000 mm of rain fell on northwestern India, yielding short-term moisture deficits of 100 to 620 mm. Meanwhile, Pakistan received less than 150 mm of rain at most locations, resulting in precipitation shortfalls of 50 to 120 mm [DRY - Up to 8 weeks].

12. Central China:

BELOW-NORMAL TEMPERATURES PREVAIL Weekly temperature departures of -2°C to -5°C covered much of central China, with lows ranging from 6°C to 20°C. Highs, however, were generally in the thirties (°C) across much of China [COLD - Up to 3 weeks].

13. Southern China:

MORE HEAVY RAINS Torrential rains (100 to 200 mm) drenched northern Guangxi, southeastern Sichuan, and southern Hunan while 25 to 100 mm of rain fell on the remainder of the region. Precipitation totaled 400 to 1000 mm during the past 8 weeks, allowing short-term moisture excesses of 200 to 700 mm to accumulate. According to press reports, the heavy rains exacerbated flooding in several parts of China [WET - Up to 10 weeks].

14. Central Australia:

UNUSUALLY COOL CONDITIONS DOMINATE Temperatures averaged 2°C to 5°C below normal, with highs in the twenties (°C) across most of the region while readings in the thirties (°C) were limited to regions north of 20°S [COLD - Up to 3 weeks].

15. Victoria:

VERY DRY WEATHER CONTINUES Little or no rain fell on Victoria during the past week. Most of the region received less than 100 mm of precipitation during the past 8 weeks, but short-term moisture deficits were generally less than 100 mm [DRY - Up to 11 weeks].