rarity: northern manitoba tornado

WFCN12 CWWG 312139
TORNADO WARNING
ISSUED BY ENVIRONMENT CANADA
AT 4:39 PM CDT MONDAY 31 JULY 2006.
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TORNADO WARNING FOR:
=NEW= THOMPSON, THICKET PORTAGE AND PIKWITONEI.

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==DISCUSSION==
AT 4:32 PM, A TORNADO WAS OBSERVED TO THE NORTHEAST OF THE THOMPSON
AIRPORT MOVING IN A NORTHEASTERLY DIRECTION.

THIS IS A WARNING THAT SEVERE THUNDERSTORMS WITH TORNADOES ARE
IMMINENT OR OCCURRING IN THESE REGIONS. MONITOR WEATHER CONDITIONS.
TAKE IMMEDIATE SAFETY PRECAUTIONS.

NOTE..A SUMMARY OF ALL WARNINGS AND WATCHES FOR NORTHERN MANITOBA IS
AVAILABLE IN THE WWCN12 CWWG BULLETIN ISSUED IMMEDIATELY FOLLOWING
THIS BULLETIN.

END

and the metars:
CYTH 312100Z 03010KT 15SM FEW010 BKN020CB 20/17 A2917 RETSRARMK SF2CB5 SLP883=
CYTH 312132Z 25020G27KT 15SM +FC BKN020CB BKN070 RMK CB6AC1TORNADO N MOVG NE VIS SW 6=
CYTH 312138Z 26015G21KT 15SM TSRA FC BKN020CB BKN070 RMK CB6AC1FUNNEL CLOUD N MOVG E VIS SW 6=
CYTH 312138Z CCA 26015G21KT 15SM TSRA FC BKN020CB BKN070 RMKCB6AC1 FUNNEL CLOUD N MOVG E VIS SW 6=
CYTH 312148Z 21010G16KT 15SM +TSRA OVC020CB RMK CB8 180V240=
CYTH 312200Z 21007KT 15SM -TSRA BKN020CB BKN085 15/12 A2925RETSRA RMK CB6AC1 SLP907=

wow. not something you see every day, given the lack of radar observations and relative sparse population...