 April 13-16 Plains/MW/OV/GL Severe Weather, SPC Risk Level: Day 1 Moderate Risk - Forecasts & OBS |
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 Apr 13 2012, 05:42 PM
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#181
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 Rank: F5 Superstorm  Group: Member Posts: 1,113 Joined: 4-September 10 From: Honesdale, PA Member No.: 23,585  |
QUOTE(East Dubzz @ Apr 13 2012, 06:34 PM)  Can someone explain to me what I should be looking for when you post the velocity stuff?   The first is from March 2 and the second from earlier this afternoon. See the bright red and green colors right next to each other? Those are high inbound and outbound velocities in virtually the same location, which indicates strong rotation. It's not always a guarantee that a tornado is in progress, but it's a good indication. |
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Apr 13 2012, 05:43 PM
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#182
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 Rank: Tornado Group: Member Posts: 313 Joined: 7-August 11 Member No.: 25,873 |
QUOTE(East Dubzz @ Apr 13 2012, 05:34 PM) Can someone explain to me what I should be looking for when you post the velocity stuff? Velocity data is very useful in determining the wind patterns in the storms. Obviously if you know how to read these maps it can be a very good tool to see rotating wind patterns in storms. Basically, green colors are winds moving towards the radar, while red colors are winds moving away from the radar. So, you are looking for "couplets", or red colors touching green colors. I like to especially look for couplets with counterclockwise rotation since the vast majority of tornados are spinning counterclockwise. -------------------- USA Weather Blog(Click Here) [Currently not being updated]
2013 Severe Weather: Slight Risks: 1 Moderate Risks: 0 High Risks: 0 |
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Apr 13 2012, 05:44 PM
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#183
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 Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
 QUOTE MESOSCALE DISCUSSION 0511 NWS STORM PREDICTION CENTER NORMAN OK 0540 PM CDT FRI APR 13 2012 AREAS AFFECTED...SE KS AND PORTIONS OF SW AND W CNTRL MO CONCERNING...SEVERE THUNDERSTORM WATCH 161... VALID 132240Z - 132345Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 161 CONTINUES. TORNADO POTENTIAL IS INCREASING LATE THIS AFTERNOON ACROSS ERN PORTIONS OF WW 161 MAY NEED AN UPGRADE TO A TORNADO WATCH. CONVECTIVE TRENDS WILL CONTINUE TO BE MONITORED. AS LOW LEVEL SHEAR INCREASES ACROSS SERN KS INTO SW/W-CNTRL MO...SUPERCELL THUNDERSTORMS HAVE SHOWN SIGNS OF STRONGER ROTATION OVER THE LAST HALF HOUR OR SO. IN FACT...WSR-88D VAD WIND PROFILES FROM KINX SHOW LARGE LOW LEVEL HODOGRAPHS FAVORABLE FOR LOW LEVEL ROTATION. AS THE LLJ CONTINUES TO STRENGTHEN THIS EVENING ACROSS THE MOIST/UNSTABLE WARM SECTOR...THE TORNADO THREAT MAY INCREASE FOR SEVERAL HOURS INTO THE MID EVENING HOURS. THIS AREA WILL CONTINUE TO BE MONITORED. ..LEITMAN.. 04/13/2012 ATTN...WFO...SGF...EAX...TOP...ICT... LAT...LON 37089705 38659585 38899503 38919445 38819393 38299367 37459371 37029375 37009455 37089705 |
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Apr 13 2012, 05:52 PM
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#184
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 Rank: Tornado Group: Member Posts: 420 Joined: 3-December 10 From: Elburn, IL. Member No.: 24,502 |
QUOTE(The Snowman @ Apr 13 2012, 04:04 PM) FWIW, since the popular thing now seems to be sharing outlooks, here's mine. This is the type of system that amateur chasers will be all over. That's just the opposite of what should be happening, considering the severity of this event... makes me very nervous... I've also made a map; hopefully everyone stays safe tomorrow. http://www.centraluswxcenter.com/2012/04/1...sible-tomorrow/ -------------------- My Weather Blog: http://usweather50.com
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Apr 13 2012, 06:09 PM
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#185
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
 QUOTE MESOSCALE DISCUSSION 0512
NWS STORM PREDICTION CENTER NORMAN OK 0547 PM CDT FRI APR 13 2012 AREAS AFFECTED...MUCH OF WESTERN/CENTRAL/NORTHEAST OK CONCERNING...TORNADO WATCH 160... VALID 132247Z - 140015Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 160 CONTINUES. TORNADO WATCH 160 CONTINUES UNTIL 02Z. LARGE HAIL ASIDE...TORNADO POTENTIAL MAY FURTHER INCREASE THROUGH SUNSET...ESPECIALLY ACROSS SOUTHWEST/WEST-CENTRAL OK. WW 160 ADJACENT PORTIONS OF NORTHWEST TX/EASTERN TX PANHANDLE ARE BEING MONITORED FOR AN ADDITIONAL WATCH THIS EVENING. SUPERCELLS CONTINUE TO DEVELOP/SPLIT OVER THE PAST FEW HOURS ACROSS SOUTHWEST OK INTO MUCH OF CENTRAL OK...WITH LONGER-LIVED/SEVERE PRODUCING EAST-NORTHEASTWARD MOVING RIGHT-MOVING SUPERCELLS. WITHIN A CORRIDOR OF MODERATE INSTABILITY /1500-2500 J PER KG MLCAPE/...VERY FAVORABLE WIND PROFILES WILL CONTINUE TO SUPPORT LONG-LIVED SUPERCELLS CAPABLE OF LARGE HAIL/TORNADOES WITHIN THIS SAME CORRIDOR...WITH A NORTHWARD EXPANSION INTO ADDITIONAL PORTIONS OF WESTERN/NORTHERN OK AND PERHAPS ADJACENT NORTHWEST TX AS A LOW LEVEL JET INCREASES AND FRONTAL BOUNDARY/DRYLINE AND ASSOCIATED MOIST SECTOR RETREATS. REGARDING THE TORNADO THREAT...THE AFOREMENTIONED SOUTHERLY LOW LEVEL JET IS EXPECTED TO STRENGTHEN ESPECIALLY TOWARD/AFTER SUNSET. THIS LLJ INCREASE...COUPLED WITH A MORE DISCRETE INITIATION/LONG-LIVED SUPERCELLULAR MODE AND MODIFYING OUTFLOW-AIDED TRIPLE POINT...MAY LEAD TO A HEIGHTENED TORNADO THREAT ESPECIALLY ACROSS SOUTHWEST/WEST-CENTRAL OK. THIS INCLUDES THE POTENTIAL FOR A STRONG TORNADO. ..GUYER.. 04/13/2012 ATTN...WFO...TSA...OUN...LUB...AMA... LAT...LON 34250016 34860023 36939732 36559509 35489574 35069711 34039882 34250016 |
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Apr 13 2012, 06:14 PM
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#186
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
QUOTE BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 612 PM CDT FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... KIOWA COUNTY IN SOUTHWESTERN OKLAHOMA... EXTREME NORTHEASTERN JACKSON COUNTY IN SOUTHWESTERN OKLAHOMA... * UNTIL 645 PM CDT * AT 611 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR BLAIR...MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... BLAIR...MOUNTAIN PARK...ROOSEVELT...WARREN AND TOM STEED RESERVOIR. |
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Apr 13 2012, 06:22 PM
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#187
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
Photobucket app not cooperating
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Apr 13 2012, 06:24 PM
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#188
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
Wrapping up, wow
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Apr 13 2012, 06:29 PM
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#189
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
Is the proximity of Frederick radar skewing things?
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Apr 13 2012, 06:32 PM
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#190
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
QUOTE SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK 629 PM CDT FRI APR 13 2012 OKC065-075-132345- /O.CON.KOUN.TO.W.0011.000000T0000Z-120413T2345Z/ KIOWA OK-JACKSON OK- 629 PM CDT FRI APR 13 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR KIOWA AND EXTREME NORTHEASTERN JACKSON COUNTIES... AT 625 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR WARREN...MOVING EAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... MOUNTAIN PARK...ROOSEVELT...WARREN AND TOM STEED RESERVOIR. |
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Apr 13 2012, 06:33 PM
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#191
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Rank: Whirlwind Group: Member Posts: 31 Joined: 8-April 08 Member No.: 14,610 |
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Apr 13 2012, 06:37 PM
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#192
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 Rank: F5 Superstorm Group: Member Posts: 1,539 Joined: 2-December 10 From: East Dubuque/Dubuque Member No.: 24,488 |
Thanks to everyone for answering my question! I really appreciate that and understand it more now as well.
Do you guys have a place where I can zoom further in on the velocity? I'm looking at the NWS's radar, but that's too far out. This post has been edited by East Dubzz: Apr 13 2012, 06:43 PM |
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Apr 13 2012, 06:48 PM
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#193
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Rank: Tornado Group: Member Posts: 313 Joined: 7-August 11 Member No.: 25,873 |
QUOTE(East Dubzz @ Apr 13 2012, 06:37 PM) Thanks to everyone for answering my question! I really appreciate that and understand it more now as well. Do you guys have a place where I can zoom further in on the velocity? I'm looking at the NWS's radar, but that's too far out. Go to the radar site you want on the NWS. Then, choose the product you want on the sidebar. Instead of clicking it directly though, click the "loop" link. Then you just click on the radar image to zoom in. If you don't want the looping, you can just click pause. Also, you can buy certain radar software packages such as those made by Gibson Ridge if you want sharper images. I believe Wunderground also lets you zoom in. This post has been edited by USA Weather: Apr 13 2012, 06:49 PM -------------------- USA Weather Blog(Click Here) [Currently not being updated]
2013 Severe Weather: Slight Risks: 1 Moderate Risks: 0 High Risks: 0 |
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Apr 13 2012, 06:49 PM
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#194
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Rank: Whirlwind Group: Member Posts: 49 Joined: 29-October 09 Member No.: 19,618 |
If you click on the NWS Radar it will zoom in with each left click.... just click on the area you want to take a closer look at....
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Apr 13 2012, 06:51 PM
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#195
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
Another powerful storm heading in Normans direction
QUOTE BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 646 PM CDT FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN COMANCHE COUNTY IN SOUTHWESTERN OKLAHOMA... EXTREME SOUTHEASTERN GREER COUNTY IN SOUTHWESTERN OKLAHOMA... EXTREME NORTHEASTERN JACKSON COUNTY IN SOUTHWESTERN OKLAHOMA... KIOWA COUNTY IN SOUTHWESTERN OKLAHOMA... EXTREME SOUTHEASTERN WASHITA COUNTY IN WEST CENTRAL OKLAHOMA... * UNTIL 745 PM CDT * AT 644 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND DESTRUCTIVE WINDS IN EXCESS OF 75 MPH. THIS STORM WAS LOCATED NEAR WARREN...MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... MOUNTAIN VIEW...ROOSEVELT...GOTEBO...COOPERTON... WARREN AND TOM STEED RESERVOIR. |
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Apr 13 2012, 06:57 PM
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#196
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Rank: F5 Superstorm Group: Member Posts: 1,539 Joined: 2-December 10 From: East Dubuque/Dubuque Member No.: 24,488 |
Thanks again guys (or girls)!
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Apr 13 2012, 07:31 PM
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#197
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
QUOTE BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 728 PM CDT FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... EXTREME NORTHWESTERN COMANCHE COUNTY IN SOUTHWESTERN OKLAHOMA... EXTREME EAST CENTRAL KIOWA COUNTY IN SOUTHWESTERN OKLAHOMA... * UNTIL 800 PM CDT * AT 726 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR COOPERTON...MOVING EAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... COOPERTON. |
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Apr 13 2012, 07:32 PM
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#198
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
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Apr 13 2012, 07:35 PM
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#199
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
Newest scan doesn't look good at all
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Apr 13 2012, 07:38 PM
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#200
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Rank: F5 Superstorm Group: Member Posts: 9,453 Joined: 26-January 10 From: Springfield, IL Member No.: 21,113 |
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