Weather Highlights - 2002
ROB'S OBS 2002 WEATHER EXTREMES
2002 Top Ten Weather Stories - Canada
DECEMBER 2002 HIGHLIGHTS
Wed Dec 18 - Storm
system finally brings snow to southern Manitoba
A storm system moving slowly over the Dakotas finally brought some much
anticipated snow to southern Manitoba, after being virtually snowfree so far this
December. The bulk of the snow fell over western Manitoba and eastern Saskatchewan where
30 to 50 cm of snow was recorded over 2 days through Thursday evening. Areas further east,
such as Winnipeg, received lesser amounts from the storm with about 5 to 10 cm up to
Thursday evening, but enough to ensure a white Christmas for southern Manitoba.
Sun Dec 15 -
Continuing above normal
Temperatures that have been hovering close to the freezing mark over the
weekend will begin to show a gradual decrease on Monday as gusty southeast winds tap a
cooler airmass over Ontario and the Great Lakes. Some snow is also possible for the Red
River valley over the next day or so as the remnants of a moist Pacific airmass spreads
over the Prairies. Snow has been a rarity this month over southern Manitoba with only 0.4
cm of snow so far this month in Winnipeg, and only a trace amount of snow left on the
ground. Temperatures most of this week will remain above normal, although they should be a
few degrees cooler than last week which averaged some 10 to 15 degrees above normal. Long
gange guidance is indicating that temperatures will gradually cool down by the end of the
week, but may still remain above normal right into the Christmas holidays.
Sun Dec 8 - Mild
week on tap
A mild Pacific flow is developing across the Prairies this week, which
will bring a pleasant week of above normal temperatures and dry conditions over southern
Manitoba. After a brisk weekend, temperatures in Winnipeg are expected to climb to the
freezing mark on Monday, and should remain at that level or even above through the week.
Friday looks especially mild with temperatures over southern Manitoba likely reaching or
exceeding +5C. Long range guidance is suggesting that any significantly cooler air will be
delayed until sometime next week.
NOVEMBER 2002 HIGHLIGHTS
Sun Nov 17 - Mid
November thaw on the way
After a very cold week which saw temperatures drop to the -20C mark for
the first time this season, a milder flow of Pacific air will bring a welcome thaw to
Winnipeg and Southern Manitoba this week. Brisk southerly winds on Sunday pushed
temperatures up to the freezing mark, but a shift of the winds into the west on Monday and
Tuesday will tap even milder air from the western Prairies where temperatures were around
the +5C mark on Sunday. As a result, temperatures in Winnipeg should climb to +4 or +5C
both Monday and Tuesday with a return to sunny skies. A brief cooldown midweek will be
replaced by milder conditions again for the end of the week before colder air returns next
weekend.
OCTOBER 2002 HIGHLIGHTS
Sun Oct 20 -
Another record low set at YWG airport
The continuing cold spell produced another record low at YWG airport as
the temperature fell to -12.8C early Sunday morning, eclipsing the previous record low for
Oct 20th of -11.1 set back in 1889. The record low is the 3rd within the past week as
Manitoba remains locked in a below normal temperature pattern. In the past 30 days,
Winnipeg has seen only 3 days above normal. The temperature has failed to reached the 10
degree mark since Oct 11th, and it's possible the 10 degree mark may not be reached for
the rest of the month.
Wed Oct 16 - Cold
night sets two record lows
A clear cold night over Southern Manitoba allowed temperatures to drop to
record lows at the Winnipeg airport for both Oct 15 and 16. The temperature dropped to
-10C by midnight of the 15th beating the previous record low of -8.2 for the date set back
in 1991. The thermometer continued to drop to a low of -12.4C by the morning of the 16th,
setting another record low (previous low -10.0C in 1952) The record lows come in the midst
of a cold snap over Manitoba that has seen below normal temperatures for most of October.
Amazingly, the cold temperatures are being registered without the help of snow on the
ground, just unseasonably cold dry air. That may change by Friday as a system moves
into southwestern Manitoba bringing the potential of 5 to 10 cm of snow.
Unfortunately below normal temperatures are expected to continue for the foreseeable
future over Manitoba as a strong Arctic vortex over Hudson Bay continues to pump cold air
over the eastern Prairies.
Thu Oct 10 - Get
ready for unseasonably cold Thanksgiving weekend
Manitobans eager for a few days of sun and mild temperatures this long
holiday weeekend are going to be disappointed as an unseasonably cold blast of Arctic air
moves in just in time for the holidays. A sharp cold front will cross Southern Manitoba on
Friday shifting winds into the northwest and tapping very cold air from the western
Prairies. By Saturday, temperatures in southern Manitoba will be hovering just above the
freezing mark with cold northwest winds and occasional flurries. Heavier lake effect snow
is possible southeast of Lakes Winnipeg and Manitoba Saturday and Saturday night. Sunday
should see a bit of moderation in wind and temperatures, but conditions will remain well
below normal for this time of year. By Thanksgiving Monday, a system tracking in from the
northwest may bring a coating of snow to southern Manitoba with highs remaining in the
single digits. Long range guidance offers little relief from the cold weather..
below normal temperatures are expected over Manitoba over the next 10 days.
Sat Oct 5 -
Winnipeggers awake to surprise snowfall
Residents of Winnipeg and southern Manitoba awoke to a blanket of snow
Saturday morning as the first snowfall
of the season made a surprise visit to the area. About 2 or 3 cm of wet snow
accumulated on lawns and rooftops in Winnipeg between 5 and 8 am as a weak disturbance
passed through Southern Manitoba. The snow had all melted by midday as temperatures
climbed to +4C and sunshine began to break through. This comes a year to the day
when the first snowflakes of the season were reported in Winnipeg, although no
accumulations were recorded. The first measurable snow cover last fall was recorded on the
morning of Oct 25th when 1-2 cm fell in Winnipeg, with much greater amounts south and east
of the city where an early season blizzard dumped 20 to 25 cm of snow in places like Grand
Forks, Emerson and Kenora. Persistent snow cover did not start in Winnipeg last year until
Nov 30th, after the city's 4th warmest November on record.
SEPTEMBER 2002 HIGHLIGHTS
Sun Sept 29 - What
happened to our sunny Sunday??
Sunday was forecast to be a sunny mild day over Winnipeg and Southern
Manitoba with gusty southerly winds sending temperatures close to the 20 degree mark.
Instead, residents awoke to a damp cool day with cloudy skies, fog and chilly winds.
Cloudy skies persisted much of the day with temperatures struggling to reach 15 degrees.
What happened? This was a classic case of "When good forecasts go bad",
which can often happen at this time of year. As the nights get longer, moisture close to
the ground has a better chance of condensing into low cloud and fog.. which can become
trapped under a low level inversion if warmer air is trying to move into the area.
This low level moisture is difficult to predict more than a few hours in advance.. and can
often develop and spread rapidly at night and early morning. This is exactly what
happened on this particular Sunday. Extensive low cloud and fog developed over the Dakotas
Saturday night and quickly spread north into southern Manitoba around sunrise Sunday. By
noon, gusty southerly winds had spread the low cloud throughout southern Manitoba into the
Interlake region. (see satellite
picture) Had this cloud not developed over the Dakotas early Sunday morning.. the
sunny and mild forecast for Manitoba would have verified. Welcome to fall in the
Prairies..
Sat Sept 28 -
Winnipeg sets record low
The temperature fell to a frosty -7.0C at the Winnipeg Airport Saturday
morning establishing a new record low for Sept 28. The previous record for the date was
-6.1C set back in 1961. The record low comes 3 days after Winnipeg's first frost of the
season on the morning of Sept 25th when the temperature hit -2C at the airport. The
average date for the first fall frost in Winnipeg is around Sept 22nd.
Mon Sept 16 -
Enjoy the summerlike weather, major cooldown by the end of the week
Sunny summerlike weather is on tap for Winnipeg and Southern Maniotba for
the first couple of days this week, but a major change in the weather pattern is being
forecast by long range models for the end of the week. After sunny skies and temperatures
in the upper twenties on Tuesday, a low pressure system and cold front will cross southern
Manitoba on Wednesday bringing a few showers. A second cold front will push through on
Friday bringing much cooler air in from Alberta on gusty northwest winds. By the weekend,
high temperatures may only be near 10 degrees over Southern Manitoba with a hard frost
likely by Sunday or Monday.
Sat Sept 7 - So
close, and yet so far..
A stubborn frontal system stalled over the Red River
Valley brought a dramatic contrast in temperatures over southern Manitoba today. While
areas west of the Red River saw overcast skies and temperatures only in the teens,
localities east of the Red broke into sunshine by afternoon allowing temperatures to soar
into the upper 20s and low 30s. Winnipeg remained right under the front line between the
two airmasses, climbing to 22 degrees at the airport and 25C at the Forks where winds
briefly went to the south in the afternoon. However, just an hour's drive south or east of
Winnipeg, temperatures climbed to 28 degrees at Emerson and Steinbach, while hitting 33C
in Sprague. Even hotter temperatures were recorded south of the border with Grand Forks,
ND climbing to a sizzling 35C, one of the hottest days of the year for them. In contrast,
areas west of the Perimeter failed to break 20C with Portage recording a high of only 16C.
A satellite picture
taken at 12:45 pm shows how close sunshine and warm temperatures got to Winnipeg.
Extensive low cloud covers most of the Red River valley and west, but southeastern
Manitoba and North Dakota have cleared nicely, allowing temperatures to soar into the
upper 20s. This cloud edge remained virtually stationary for the rest of the day as
the frontal trough stalled over Winnipeg. 19Z and 21Z surface analyses
clearly show the dramatic temperature contrast across southern Manitoba.
Highs across the Red River Valley and southeastern Manitoba for Sep 07..
Sprague..............32.5C
La Broquerie.........28.7C (just east of Steinbach)
Steinbach............28.0C
Emerson..............27.6C
Gretna...............23.4C
Winnipeg Forks.......24.7C
Whyte Ridge..........24.2C
Charleswood..........22.6C
Winnipeg Arpt........21.9C
Starbuck.............19.5C
Carman...............17.4C
Portage..............16.0C
Fri Sept 6 -
Unsettled weather for the next few days
A stationary storm track across the Dakotas will maintain cloudy skies and
occasional shower or thunderstorm activity for the next 3 or 4 days over southern
Manitoba. Some of the rainfall could be heavy, particularly with some nighttime
thunderstorm activity that is typical with these type of weather patterns. Those in
southern Manitoba wishing to see sunny and warm conditions this weekend will not have to
travel far. The warm air should sneak over areas south and east of Winnipeg on Saturday,
with highs of 32C expected in Grand Forks, only a 2 hour drive away.
AUGUST 2002 HIGHLIGHTS
Sun Aug 18 -
A return to warmer drier weather?
After a rather cool and unsettled first half of August, long range
guidance is suggesting that warmer and drier weather will be returning to the Prairies for
the latter half of the month. The weather pattern which has been dominated by a large
scale upper trough over the Prairies this month is forecast to return to a more zonal flow
this week before a strong upper ridge becomes established over the Rockies by next
weekend. This will mean a return to more seasonal temperatures this week over the
Pariries, followed by above normal temperatures next week. The drier flow will also mean
more sunshine and less precipitation over the next couple of weeks. This will be welcome
news for farmers who are now entering the critical harvest season. Since August 1st,
Winnipeg has seen only 3 days above normal, with at least 10 days of measureable rainfall
totalling 80 mm at my site.
Sat Aug 17 -
Cool wet weather hits southern Manitoba
An unseasonably strong low pressure system moved across the Dakotas into
Northwestern Ontario Aug 16-17th bringing significant rain across southeastern Manitoba
along with gusty northwest winds and very cool temperatures. Rain from the system
began in Winnipeg around 6 pm Fri Aug 16th and continued through the night into Saturday
morning. 40.4 mm of rain was recorded at my site in Charleswood, with general rainfalls of
40-50 mm recorded across the Red River Valley and southeastern Manitoba. Some rainfall
amounts recorded with this system included..
Starbuck.............47.3 mm
Winnipeg Ft Rouge....45.2 mm
YWG Airport..........42.0 mm
Whyte Ridge..........42.0 mm
Steinbach............41.6 mm
Charleswood..........40.4 mm
Winnipeg Forks.......36.6 mm
Sun Aug 11 -
Is summer over?
After a sunny and warm July, cooler and unsettled weather has dominated
the weather so far in August over the Prairies, and long range models are indicating that
this pattern will likely prevail for the next couple of weeks at least. Long range
guidance is indicating that below normal temperatures are likely over the Prairies over
the next 10 days, along with below normal sunshine and above normal precipitation as a
long wave trough settles over the Prairies. Warm weather will be confined over
southern Ontario/eastern Canada as well as the West Coast where blocking ridges of high
pressure will maintain warm and dry conditions in these areas. Our weather pattern in
Winnipeg this year has been remarkably similar to that of 1979, which saw a very cool
spring (especially May), followed by a nice warm July. Cooler weather returned in
August which averaged about 2 degrees below normal, with no 30 degree days during the
month. Maximum temperature during August 1979 was only 29.5C (20th) and the lowest was 4.0
(15th) Precipitation was near normal at 76 mm. Could we seeing a repeat this
August? Only time will tell, but for the time being, it looks like the summer of
2002 will be winding down on the cool side.
JULY 2002 HIGHLIGHTS
Thu Jul 04 -
Heavy Rain swamps Winnipeg and southeastern Manitoba
A slow moving area of thunderstorms Thursday evening brought another round
of heavy rain over Winnipeg and southeastern Manitoba. Rainfall amounts ranged from 45 mm
downtown to over 80 mm in southern and western parts of the city. At my station, 70
mm fell during the evening, the bulk of it between 8 pm and 10 pm. 35 mm of rain fell
between 8 and 9 pm with a peak rainfall intensity of 75 mm/hr recorded during that time.
Even heavier rain was recorded southeast of Winnipeg where up to 130 mm of rain was
recorded in Steinbach Thursday evening.
(See rainfall map)
JUNE 2002 HIGHLIGHTS
Fri June 28 -
Prairie heat wave spreads over Manitoba
Record heat that has been baking Alberta and Saskatchewan over the past
couple of days is spreading eastward, and promises to bring a stifling Saturday over
Southern Manitoba. On Thursday, 38C temperatures were recorded at Meadow Lake,
Lloydminster and North Battleford. On Friday, The Pas set a new record with a high of
37.6C. On Saturday, the crest of the heat is expected over the Dakotas and Southern
Manitoba, where highs of 35-38C are likely. Winnipeg's record for June 29th is 36.7C
set in 1912, and this record may be challenged or broken tomorrow. In addition, humidex
values are expected to rise into the low-mid 40s which can lead to heat stroke or heat
exhaustion with prolonged outdoor activity. Keep cool and hydrated. The heat wave will be
broken Saturday night as a cold front sweeps through the province. This front may trigger
some powerful thunderstorms over southern Manitoba, with torrental rains, strong winds,
and frequent vivid lightning. Warm but drier and more comfortable conditions are expected
to close out the holiday weekend for Sunday and Monday.
Monday June 10 -
Heavy rains swamp Southern Manitoba
Another round of showers and thunderstorms spread across Southern Manitoba
early Monday morning bringing a second day of heavy rain across the area. Once again,
areas south of the TransCanada saw the bulk of the rainfall with 90 mm or more reported
along the U.S. border by Monday evening. This now brings two day rain totals of over
150 mm along the international border since Saturday night with estimates of 300 mm over
extreme southeastern Manitoba around the Sprague area. Some rainfall statistics up to 7 pm
Monday evening include..
June 10 rainfall 48 hr rainfall total
1 am - 7 pm til 7 pm Jun 10
Winnipeg South (Ft Rouge).. 50 mm ........... 85 mm
Winnipeg Forks............. 41 mm ........... 74 mm
Charleswood (Rob's Obs).... 39 mm ...........
71 mm
Winnipeg Airport........... 29 mm ........... 59 mm
Sprague.................... 100+ mm (est)..... 300+ mm (est)
Gretna..................... 83 mm ........... 148 mm
Emerson.................... 88 mm ........... 138 mm
Carman..................... 73 mm ........... 111 mm
Starbuck................... 77 mm ........... 111 mm
Steinbach.................. 54 mm ........... 91 mm
Morden..................... 57 mm ........... 90 mm
Kenora..................... 26 mm ........... 83 mm
Brandon.................... 22 mm ........... 38 mm
Portage.................... 18 mm ........... 33 mm
Gimli...................... 23 mm ........... 31 mm
24 hr rainfall
map ending 7 am June 11 (Monday event)
24 hr rainfall
map ending 7 am June 9 (Sunday event)
The good news is that it
appears the bulk of the heavy rain is over.. although scattered showers and thunderstorms
are still possible mainly Tuesday afternoon into Tuesday evening. The drenching rains of
the past two days however should be over as the main instability moves into
Ontario.
Sunday June 9
Heavy rains spread across southern Manitoba early Sunday morning before
moving into Northwestern Ontario during the day. The rain was a result of a warm
front that developed showers and thunderstorms over the Dakotas Saturday evening and
spread northward into Manitoba. The heaviest rain fell over southeastern Manitoba with
lesser amounts north of the TransCanada. Some rainfall totals by 7 pm Sunday evening
included..
Winnipeg Forks.....30.8 mm
Charleswood........30.5 mm (Rob's Obs)
Winnipeg South.....29.7 mm (Fort Rouge)
Winnipeg Airport...28.5 mm
Gretna.............64.2 mm
Kenora.............57.2 mm
Emerson............50.0 mm
Steinbach..........36.8 mm
Carman.............35.0 mm
Morden.............32.2 mm
Starbuck...........32.0 mm
Brandon............13.8 mm
Portage............12.8 mm
Gimli.............. 8.0 mm
Even heavier rainfall was reported south of the border in North Dakota. Grand Forks was drenched with 4.29" (109 mm) at the airport, with 5.27" (134 mm) falling at the Grand Forks NWS office on the UND campus. (See radar estimated rainfall map for 24 hr period ending 7 am June 9)
At my station, the heaviest rain fell between 6 and 8 am when 24 mm was recorded. Another round of showers and thunderstorms is expected Sunday night into Monday with another 20 to 30 mm possible over southern Manitoba.
MAY 2002 HIGHLIGHTS
Wednesday May 29
A heavy thunderstorm moved across Winnipeg during the afternoon dumping
heavy rain, small hail and frequent lightning to the city. At my station, the storm
began around 2:50 pm, with a peak rainfall intensity of 79.5 mm/hour recorded at 2:59
pm. By the time the rain stopped around 5 pm, 14.5 mm of rain had fallen at my
site. Local rainfall amounts included 8.0 mm at YWG airport, 13.8 mm at the Forks,
8.6 mm in Whyte Ridge, and 18 mm in East Kildonan.
Friday May 24:
YWG hits record low
Early morning temperatures plunged to a new record low at YWG airport
Friday morning as the thermometer dipped to a frosty -6.3C, eclipsing the previous record
low of -4.4C for May 24th set in 1897. The chilly temperatures followed an
unseasonably cold day over Winnipeg on the 23rd that saw highs of only 6.5C along with a
dusting of snow in the morning.
Thursday May 9:
Worst May snowstorm in 35 years blasts Winnipeg
A strong storm system tracking across North Dakota into Northwestern Ontario brought heavy
snow to much of southern Manitoba Wednesday night into Thursday. In Winnipeg, the
storm began with rain on Wednesday before changing to snow by midnight Thursday. The heavy
wet snow continued on Thursday along with strong northerly winds gusting over 70 km/h
making for miserable conditions. By the time the snow ended Thursday afternoon, 20.0 cm of
snow had been reported at the Winnipeg airport, the heaviest May snowfall since 1967 when
21.1 cm was registered on May 1st. The 20.0 cm snowfall however is somewhat
misleading since much of the snow was melting on contact as it fell during the day. As a
result, the actual snow depth was never more than 10 cm of heavy wet slush. In
total, 30.6 mm of rain and snow was recorded at YWG from the storm since Wednesday
afternoon leading to extensive ponding on roadways and some flooded basements.
All time heaviest May snowfalls in Winnipeg
1. May 1, 1967.....21.1 cm
2. May 19, 1931.....20.3 cm
3. May 9, 2002.....20.0 cm
4. May 20, 1882.....15.2 cm
5. May 5, 1938.....13.0 cm
6. May 5, 1931.....12.2 cm
This latest snowfall now puts the May 2002 monthly snowfall total at 29.0 cm, the 2nd
snowiest May in Winnipeg since records began in 1872, second only to the 32.5 cm monthly
snowfall set in May 1931.
Sunday May 5:
Say it isn't snow! - Winter returns to southern Manitoba..
A low pressure system tracking across the Dakotas spread an area of snow over
southern Manitoba Sunday morning bringing 5 cm of snow to Winnipeg between 7 am and 1 pm.
The snow was accompanied by cold northeast winds of 30 to 50 km/h that created some
blowing and drifting snow at times making it feel more like March than May. The 5 cm
of snow was the heaviest single day May snowfall in Winnipeg since May 17, 1968 when 7.9
cm fell on the city (although there was a 7.2 cm snowfall that fell over two days on May
10-11, 1979), and also marks the first measureable snowfall in May since May 1997.
The snowfall is just the latest reminder that spring has yet to arrive in Manitoba which
has seen almost daily below normal temperatures since the end of February. In the 70
days since Feb 24th, Winnipeg has seen only 14 days above normal, and the extended outlook
calls for a continuation of below normal temperatures over the next week at least.
In fact, there's another chance of measureable snow over Winnipeg and southern
Manitoba Wednesday night into Thursday morning (May 8-9th).
Previous occurrences of 1.0 cm or more snowfalls in Winnipeg in May (past 35 years)
1. May 12 1997 1.4 cm
2. May 4 1991 1.8 cm
3. May 1 1991 2.0 cm
4. May 11 1979 2.8 cm
5. May 10 1979 4.4 cm
6. May 1 1975 2.8 cm
7. May 5 1972 3.0 cm
8. May 17 1968 7.9 cm
9. May 20 1967 1.5 cm
10. May 1 1967 21.1 cm
APRIL 2002 HIGHLIGHTS
The below normal temperature regime that characterized
March persisted through much of April as residents of the Prairies began to wonder if
spring was ever going to arrive this year. Mean monthly temperatures at my station were
1.4 deg below normal for April.. a somewhat misleading statistic thanks to a 7 day warm
spell in mid April that masked the more prevalent cold pattern for the month. In fact, 22
out of the 30 days were below normal.. which continues a trend that became established in
the last week of February over the Prairies. In the period from Feb 24 - April 30, only 13
of 66 days have seen above normal temperatures in Winnipeg, or about 1 in 5.
The only warm weather for the month was a warm spell from April 11th to 17th during which
time temperatures climbed to a record high of 22 degrees on the 12th. (old record 21 in
1931) After the 17th, daily highs struggled to reach the 10 degree mark, except for a 21
degree day on April 23rd.
Precipitation was a little below normal.. with 30 mm recorded at my station (normal 36 mm)
The bulk of the precipitation fell during the season's first thunderstorm on the evening
of the 16th when 13.0 mm fell in just over 30 minutes along with 1 cm hail. Snow for the
month totalled 5.4 cm falling on 6 days.. the latest occurrence on April 25th. Persistent
snowcover was gone by April 8th.
But as bad as this April has been, things have been worse. In April 1996, the average high
was only 3.1 degrees, with a high of only 12.4 for the entire month. April 1956 saw only 1
daily max above 10 degrees all month, with a monthly max of only 11.1C. And after a cool
April in 1979, the first 11 days of May 1979 saw highs only in the single digits with some
snow observed on 10 of the 11 days.
MARCH 2002 HIGHLIGHTS
The winter that wouldn't start turned into the winter that wouldn't finish as cold weather finally settled over the Prairies during March. Daily temperatures were below normal on all but 5 days for the month, with the monthly mean of -10.3 at my site being over 3 degrees below normal, the first month below normal since last October. Precipitation for the month was normal at 23.4 mm, with all but 0.6 mm falling as snow. The greatest pcpn event was a 9.0 cm snowfall from the 8th-9th. Snow cover was persistent through the month, with 5 cm left on the ground by the 31st at my location.
FEB 2002 HIGHLIGHTS
The abnormally mild winter of 2001-2002 continued
through much of February. Temperatures averaged 6 degrees above normal at my station, and
officially ranked as th 12th mildest Feb on record at YWG airport since 1872 with a mean
of -10.0C. Mean daily temps were above normal every day from Feb 4th through 23rd, with a
maximum of 5.5C on the 11th. Pcpn was light, with only 8.0 mm for the month on only 5
days.
February marks the 4th consecutive month above normal, and makes the winter of 2001-2002
the 8th warmest on record at YWG since 1872 with a mean of -11.7C, some 4 degrees above
normal.
JAN 2002 HIGHLIGHTS
Very mild first half followed by colder than normal
second half. Temperatures averaged almost 12 degrees above normal up to Jan 15th.. with
temperaturs peaking at 6.6C on Jan 8th. Temps
cooled off for the latter half of the month with a minimum of -31.6C on the 29th. Even so,
temperatures for the month finished 5.2 degrees above normal thanks to the abnormally mild
start.
Snowfall totalled 33.4 cm, about 14 cm above normal, with almost all of it falling in the
colder second half of the month. The heaviest snowfall was 10 cm on the 16th.
A NOTE ABOUT ENVIRONMENT CANADA'S LONG RANGE FORECASTS
Since June 2001, the long range forecast (Day 3 to 5) for the Prairies has been a totally automated computer generated product from Montreal, with no intervention from local human forecasters. This automated product does not forecast abnormally warm or cold conditions well, since the output is skewed towards climatology, i.e. "normal" temperatures, especially towards Day 4 and 5. There are plans to improve long range temperature forecasts based on real time biases, but results are still being evaluated. In the meantime, long range temperature forecasts (Day 3 to 5) from Environment Canada for the Prairies should be used taking the above considerations into account, especially if the weather pattern suggests an extended period of well above or below normal temperatures. Consulting other long range guidance (such as the links below) is recommended to give a better idea of temperature trends expected in the next 5 to 10 days.
Long Range Guidance:
* 5 day Max temp anomaly -
HPC
* 10 day MRF loop
* 10 day mean
temperature anomaly forecast - Canada (CMC)
* 10 day mean temperature anomaly
forecast - North America (MRF)
* 6-10
day outlook (CPC)
* 8-14 day
outlook (CPC)