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2024 Hennepin County All -Jurisdiction Hazard Mitigation Plan <br />Volume 2 — Hazard Inventory <br />.., <br />1"h��� <br />ti. � _ b <br />11 4�uuu Ilu Illrll II II'ullllu ��ull �uuu1111 ��;u ou II � hull' �uuu II'rill II uuulluu <br />11� II II 11111111 10119! Io011 I � I1111111 i'! ll �IIIIII 11"BII11V11V1111 <br />G7 <br />iu <br />"I 10 0 E jrimi III�� o err �i <br />,- <br />r iii.... <br />L�� <br />, a r ��h <br />f <br />�i �h�h n h,lkk �blllh hlhl� 1008�r <br />vu m <br />d �mrrr a Y,ll <br />F. 1010 +urliG>�y�P �Vll �1y� J1JJ li 1 ili f0 P>rrrrr i �l ��lniiii�i �� � �° <br />I <br />1010 �rir <br />7 <br />II �i d� <br />w� <br />hpk <br />» W' i L <br />u1 U <br />SPC MCD #1638 <br />Mesoscale Discussion graphic issued in anticipation of National Night Out severe weather event <br />Watches are issued when atmospheric conditions are favorable for the development of severe <br />weather. They are more geographically specific than Convective Outlooks, and they have defined <br />geographic boundaries, as well as start and end times. Typically, a watch will cover about 50,000 <br />square miles --slightly more than half the size of Minnesota --and will last between 5 and 8 hours. <br />Tornado watches are used when conditions favor development of tornadoes, in addition to other <br />forms of severe weather. Severe thunderstorm watches are used when the tornado risk is <br />relatively low and hail or strong winds are expected. Large hail can be expected with both types <br />of watches, and neither connotes a greater or lesser risk of hail. <br />The National Night Out hail even was initially covered by a Tornado Watch, which was replaced by <br />a Severe Thunderstorm Watch after a few hours, when it became apparent there was not enough <br />low-level moisture or shear to produce tornadoes, but plenty instability aloft and mid -level shear <br />to produce large hail and strong winds. Below is the Severe Thunderstorm Watch outline with <br />radar overlay. <br />104 <br />