1. Southern Alberta:
COOL CONDITIONS PREVAIL
Temperatures were 2°C to 6°C below normal again last week as unusually
cool weather persisted across southern Alberta. Subfreezing lows dominated
the province while highs failed to reach 20°C at several locations
[COLD - Up to 4 weeks].
2. Southwestern United States:
EARLY-SEASON HEAT
Temperatures averaged 2°C to 4°C above normal across the Desert
Southwest and southwestern High Plains, with departures reaching 6°C
in parts of northern Arizona, southern Utah, and southwestern Colorado.
The mercury soared above 40°C in Arizona, southern Nevada, and southeastern
California while highs exceeded 30°C elsewhere. The high temperatures
exacerbated wildfires in the region [WARM - Up to 3 weeks].
3. Southeastern United States:
STILL VERY DRY
Little or no rain fell on the southeastern United States, except for locally
moderate to heavy showers (25 to 100 mm) in parts of central and eastern
North Carolina and in southern Florida. During the past 8 weeks, fewer
than 150 mm of rain fell on the region, allowing short-term moisture shortages
of 100 to 200 mm to accumulate. The abnormally dry weather has aggravated
the wildfire situation across much of Florida [DRY - Up to 8 weeks].
4. Central South America:
FAVORABLY DRY WEATHER
Little or no rain fell on Uruguay and northern Argentina during the past
week. Eight-week precipitation totals ranged from 100 to almost 1000
mm, resulting in moisture excesses of 100 to 800 mm [WET - Up to 12 weeks].
5. Eastern Europe:
DRYNESS CONTINUES
Scattered light to moderate showers (up to 30 mm) brought some relief to
Lithuania, Poland, Belarus, and Ukraine but little or no rain again fell
over the remainder of the region. Since April 9th, less than 110 mm of
precipitation has accumulated in the region, yielding shortfalls of 50
to 170 mm [DRY - Up to 9 weeks].
6. Southwestern Europe and Northwestern Africa:
WARM ANOMALY REMAINS
Abnormally warm weather continued over the western Mediterranean littoral.
Temperatures averaged 2°C to 4°C above normal over southern France,
Italy, Switzerland, and Austria and 3°C to 6°C above normal over
much of Spain, northern Algeria, and northern Tunisia. The mercury reached
30°C as far north as Geneva, Switzerland (46°N) [WARM - Up to 9
weeks].
7. Western Sahel:
TEMPERATURES REMAIN ABOVE NORMAL
Weekly departures of +2°C to +3°C prevailed across the region,
with localized larger temperature departures (up to +7°C) reported
in western Mauritania. Highs of 40°C to 47°C dominated the southern
portions of Mauritania, Mali, and Niger and the northern section of Burkina
Faso, but remained below 40°C elsewhere [WARM - Up to 14 weeks].
8. East-Central Africa:
SHORT-TERM MOISTURE DEFICITS PERSIST
Scanty rains were reported again last week as 8-week moisture shortages
of up to 275 mm dominated Ethiopia, Kenya, and Tanzania [DRY - Up to 19
weeks].
9. East-Central China:
STORMS BRING RAIN, EASE DRYNESS
Thunderstorms brought scattered moderate to heavy rain (25 to 125 mm) to
east-central China from western Sichuan Province eastward to the central
China coast. Short-term moisture deficits range from 50 to 250 mm [DRY
- Up to 15 weeks].
10. Southeastern Asia:
MORE HEAVY RAIN
A tropical depression contributed to heavy rains (50 to 200 mm) that saturated
much of southeast Asia. Torrential rains of more than 200 mm inundated
parts of southern Thailand and coastal Cambodia. During the last 8 weeks,
amounts of 200 to 1250 mm have drenched the region, leaving moisture surpluses
of 80 to 500 mm [WET - Up to 20 weeks].
11. Australia:
UNUSUALLY COLD WEATHER DOMINATES AUSTRALIA
Temperatures averaged 2°C to 6°C below normal across much of Australia,
with weekly departures approaching 7°C at a few locations. The mercury
failed to reach 20°C as far north as central Northern Territory and
southern Queensland while subfreezing lows were widespread along the Great
Dividing Range, and were recorded as far north as southern Northern Territory
[COLD - Up to 7 weeks].
12. Southeastern Australia:
RAINS BRING SOME RELIEF
Between 25 and 50 mm of rain fell on much of southern and eastern Victoria
and on the southern and western coasts of Tasmania, but fewer than 25 mm
were reported elsewhere. Short-term moisture deficits were generally less
than 100 mm, but precipitation shortfalls reached as high as 200 mm along
the coast of New South Wales [DRY - Up to 10 weeks].