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Spring 2014 has been a quiet tornado season thus far, but that's about to change this weekend, if the predicted forecasts that meteorologists are looking at hold true. Weather experts say conditions are lining up for a series of powerful tornadoes to hit an area ranging between Tennessee and Texas from Saturday through Monday. The National Weather Service predicts a "significant multi-day severe event" in the South plains on Sunday, moving into the Mississippi Valley on Monday.
The extreme warnings stem from an interaction between an East-moving low-pressure system over the Rockies mixing with wetness from the Gulf of Mexico. That will cause the creation of supercell thunderstorms, Slate's Eric Holthaus explains, all kept in place in the South-Southwest by a high-pressure system in Canada. That makes the area ripe for a "big severe threat" this weekend, according to The Weather Channel, an extra level on top of today's "severe threat."
Holthaus notes that the best historical comparisons to a weather pattern like this point to some of the worst tornado outbreaks in U.S. history. That includes the April 26, 1991, stretch of tornadoes from Texas to Iowa that caused a billion dollars in damage and included a rare F5-strength tornado. For those in need of a refresher, here are FEMA's guidelines for how to prepare for tornadoes.
Saturday, April 26
Scattered severe thunderstorms and tornadoes likely by and in the evening in south NE, northwest MO, KS except extreme east, west and central OK (excluding west panhandle), east TX panhandle and west TX east of a line from near Childress to Del Rio and as far east at San Antonio and Dallas. TOR:CON - 4 south NE, central KS, west OK, northwest TX; 3 rest of area.
Severe thunderstorms are likely to continue past midnight in these areas and possibly spread into northeast NE, east OK, and northeast TX overnight. TOR:CON - 2 to 3 in these additional areas. At the moment the air looks rather dry and capped (warm layer aloft), which might hold down the tornado threat.
TOR:CON Saturday into Saturday Night
KS central - 4
KS northeast - 3 to 4
KS southeast night - 2 to 3
MO northwest - 3
NE south - 4
NE northeast night - 2 to 3
OK west half excluding west panhandle - 4
OK east night - 2 to 3
TX east panhandle, northwest - 4
TX strip near Childress and Fort Worth to Del Rio and San Antonio - 3
TX northeast night - 2 to 3
other areas - 1 or less
Sunday, April 27
Severe thunderstorms and isolated tornadoes in west and south SD, north and east NE, west and south IA, MO, west-central and south IL, west KY, west TN, extreme northwest MS, AR, northwest LA, east KS, east OK, east TX from east of Dallas to northwest of Houston eastward. TOR:CON - 4 east NE, southwest IA, east KS, MO, east OK, AR, northeast TX; 3 rest of area
TOR:CON Sunday
AR - 4
IA southwest - 4
IA northwest, southeast - 3
IL west-central, south - 3
KS east - 4
KY west - 3
LA northwest - 3
MO - 4
MS northwest - 3
NE east - 4
NE north - 3
OK east - 4
SD west, south - 3
TN west - 3
TX northeast - 4
other areas - 1 or less
Monday, April 28
Severe thunderstorms and isolated tornadoes in southeast SD, southwest MN, north and east IA, IL except northeast, west-central and south IN, west and central KY, west and middle TN, north and west AL, MS, LA, upper-coastal TX, south and east AR, southeast MO. TOR:CON - 5 south IL, southwest IN, west KY, west TN, MS; 4 north and central LA, northwest AL, middle TN, central KY, southeast IN; 3 rest of area
TOR:CON Monday
AL northwest - 4
AL northeast, southwest - 3
IA north, east - 3
IL south - 5
IL central, northwest - 3
IN southwest - 4
IN west-central, southeast - 3
KY west - 5
KY central - 4
LA north - 4
LA southwest - 3
LA southeast - 2 to 3
MN southwest - 3
MO southeast - 3
MS - 5
SD southeast - 3
TN west - 5
TN middle - 4
TX upper-coastal - 2 to 3
other areas - 1 or less
Tuesday, April 29
Severe thunderstorms, heavy rain and isolated tornadoes in north half IL (as far north as Chicago and Rockford), north, central, and southeast IN, west and south OH, west-central and south WV, east half KY, east half TN, southwest VA, west, central, and southeast NC, SC, north, central, and southwest GA, AL, east-central and south MS, southeast LA, west FL panhandle. TOR:CON - 4 AL, south MS, northwest GA; 3 east KY, east TN, south OH, southwest WV; 2 to 3 rest of area
TOR:CON Tuesday
AL - 4
FL west panhandle - 2 to 3
GA northwest - 4
GA central, southwest, northeast - 2 to 3
IL north half - 2 to 3
IN north, central, southeast - 2 to 3
KY east - 3
LA southeast - 2 to 3
MS south - 4
MS east-central - 3
NC west, central, southeast - 2 to 3
OH south - 3
OH northwest - 2 to 3
SC - 2 to 3
TN east - 3
VA southwest - 2 to 3
WV southwest, west-central - 3
other areas - 1 or less
Wednesday, April 30
Severe thunderstorms in VA (except southwest), central and east NC, central and east SC, east-central and south GA, central and east FL panhandle, north half FL peninsula. TOR:CON - 4 southeast VA, central and east NC; 3 east SC; 2 to 3 rest of area
TOR:CON Wednesday
FL central and east panhandle, north half peninsula - 2
GA east-central, south - 2 to 3
NC central, east - 4
SC east - 3
SC central - 2 to 3
VA southeast - 4
VA north, central - 3
other areas - 1 or less
Thursday, May 1
No severe thunderstorms. TOR:CON - near zero
originally posted by: stirling
Chemtrail that Canadian High......was it BC Grown?
originally posted by: Sremmos80
So is South Dakota it danger zone of the nados??
My madre lives east of rapid, inside the orange zone.
I ask because what is posted doesn't mention SD and nothing to click to read more
TOR:CON Value Descriptions
8+ Very high probability of a tornado
6 - High probability of a tornado
4 - Moderate chance of a tornado nearby, but hail and/or high wind gusts possible
2 - Low chance of a tornado, but hail and/or high wind gusts possible
0 - Near-zero chance of a tornado or a severe thunderstorm
The TOR:CON index ranges from 0 to 10. Multiply the value by 10 to get your percentage chance of a tornado within 50 miles of a location. For example, a TOR:CON index of 6 means there's a 60% chance of a tornado within 50 miles of any location in the indicated area.