Mesoscale discussions

Here is more information about the mesoscale analysis page and a detailed description of the parameter fields. These new mesoscale analysis pages, implemented during the Spring of 2010, incorporate the use of layered transparent images and a javascript display system. They have been thoroughly tested for compatibility with …

RadarScope Pro Tier Two is an annual or monthly subscription that combines all the features in Tier One with more advanced features, including 50-frame loops, SPC outlooks, special weather statements, mesoscale discussions, local storm reports, hail size and probability contours, and azimuthal shear contours in the U.S., a 30-day archive of all ...Mesoscale Discussion 2232. Mesoscale Discussion 2232 NWS Storm Prediction Center Norman OK 0521 PM CDT Wed Oct 04 2023 Areas affected...central and eastern OK into portions of western AR and north TX Concerning...Severe Thunderstorm Watch 705 ... Valid 042221Z - 042345Z The severe weather threat for Severe Thunderstorm Watch 705 continues. Mesoscale Discussion 2260. Mesoscale Discussion 2260 NWS Storm Prediction Center Norman OK 0509 PM CDT Tue Oct 24 2023 Areas affected...southeastern New Mexico and southwestern Texas Concerning...Severe potential...Watch unlikely Valid 242209Z - 250045Z Probability of Watch Issuance...20 percent SUMMARY...Thunderstorms posing a risk for ... Mesoscale Discussion 2255. Mesoscale Discussion 2255 NWS Storm Prediction Center Norman OK 0145 PM CDT Fri Oct 20 2023 Areas affected...Northeast GA...western/central SC...and southwest/south-central NC Concerning...Severe potential...Watch unlikely Valid 201845Z - 202115Z Probability of Watch Issuance...20 percent …Mesoscale Discussion 2265 NWS Storm Prediction Center Norman OK 0416 PM CDT Fri Oct 27 2023 Areas affected...portions of central Illinois...eastern Missouri...and northern Arkansas Concerning...Severe potential...Watch unlikely Valid 272116Z - 272245Z Probability of Watch Issuance...5 percent SUMMARY...A damaging gust or two is …

Issued: 231908Z. Valid: 241200Z - 251200Z. Forecast Risk of Fire Weather: No Critical Areas. Note: Critical Fire Weather Criteria document in MS-Word or PDF . Day 3-8 Fire Weather Outlooks ( Product Info) Day 3-8 Fire Weather Outlook. Forecaster: LYONS. Issued: 232126Z.Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us: NOAA / National Weather Service National Centers for Environmental Prediction Storm Prediction Center 120 David L. Boren Blvd. Norman, OK 73072 U.S.A. [email protected] Page last ...Jul 22, 2023 · Mesoscale discussions are an essential tool for meteorologists to communicate the potential development of hazardous weather events within the mesoscale range. These discussions serve as a vital link between forecasters and the public, providing early warnings and detailed analyses of developing weather situations. This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center during high-confidence and high-impact severe weather events.Current Mesoscale Discussions Updated: Fri Oct 20 06:35:03 UTC 2023 No Mesoscale Discussions are currently in effect. Most recently issued Mesoscale Discussion #2253. Notice: The responsibility for Heavy Rain Mesoscale Discussions has been transferred to the Weather Prediction Center (WPC) on April 9, 2013.

The official website for Xtreme WX Forecasting. Welcome to Xtreme WX, we aim at providing the most accurate, and consistent outlooks possible with our team of trained analysts. Here, you can view all current outlooks, as well as Archived Outlooks. You can also view our full team of analysts, here.mesoscale. Pertaining to atmospheric phenomena having horizontal scales ranging from a few to several hundred kilometers, including thunderstorms, squall lines, fronts, precipitation bands in tropical and extratropical cyclones, and topographically generated weather systems such as mountain waves and sea and land breezes. From a …A mesoscale discussion may refer to: Mesoscale convective discussion, a forecast concerning thunderstorms issued by the Storm Prediction Center (SPC) Mesoscale …Mesoscale discussion archive A deep cyclone Gaetan heads across the UK tonight, explodes into a monster winter storm across southern Scandinavia on Thursday Significantly worsening conditions are underway across western Europe as two named storms, Christoph and Gaetan, are heading for the UK, the North Sea, and southern …

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Jun 29, 2023 · Mesoscale forecasters compose concise short-term guidance messages called Mesoscale Discussions (MDs) that address areas of current or expected hazardous weather. The mesoscale forecaster also issues Status Reports for every severe weather watch in effect, at the bottom of the hour during the watch. Status Reports are guidance products which ... AllisonHouse is a data aggregation company that provides weather data to a wide variety of customers. AllisonHouse customers can log into their AllisonHouse account to access an alternative source of radar data as well as premium feeds for SPC watches, outlooks, and mesoscale discussions, lightning data, and local storm reports.Recent Mesoscale Discussions. MCD #2261 - issued 1011 PM CDT Tuesday, October 24 CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY AREAS AFFECTED...WEST TEXAS VALID 250311Z - 250545ZMesoscale Discussion When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion (MCD) statement anywhere from roughly half an hour to several hours before issuing a weather watch.wx training and profession. mike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukesNWS Cleveland Weather Quick Brief. WPC Fronts 48-hr. SPC Mesoscale Discussions. SPC Day 2 Discussion. SPC Days 4-8 Discussion. Visible/Infrared Sandwich Satellite. Current Wind Chill Observations (Map) Minimum Apparent Temperature (24-hr) CPC Temperature Outlook (8-14 days)

{"payload":{"allShortcutsEnabled":false,"fileTree":{"postproc":{"items":[{"name":"README.md","path":"postproc/README.md","contentType":"file"},{"name":"newa2nc.py ...Abstract. The representation of aerosol–cloud interaction (ACI) and its impacts in the current climate or weather model remains a challenge, especially for severely polluted regions with high aerosol concentration, which is even more important and worthy of study. Here, ACI is first implemented in the atmospheric chemistry model …{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Procfile","path":"Procfile","contentType":"file"},{"name":"README.md","path":"README.md ...Mesoscale Discussion 2221. Mesoscale Discussion 2221 NWS Storm Prediction Center Norman OK 0504 PM CDT Tue Oct 03 2023 Areas affected...portions of central KS and far northwest OK Concerning...Severe potential...Watch needed soon Valid 032204Z - 032300Z Probability of Watch Issuance...95 percent SUMMARY...Deepening convection will likely ... At 12:15PM CDT, SPC issued a mesoscale discussion regarding the evolving environment across portions of Arkansas. The cap at this time had nearly eroded across western Arkansas as noted by 18Z (1 PM CDT) cloud cover surface observations. Temperatures had warmed to the upper 70s with dewpoints in the upper 60s ahead of the cold front.As electric vehicles become more popular, the need for charging stations is increasing. If you are an EV owner, you know the importance of finding charging stations near your location. In this article, we will discuss how to find the best c...Oct 24, 2023 · Mesoscale Precipitation Discussion: #1149 (Issued at 459 AM EDT Tue Oct 24 2023 ) MPD Selection . Mesoscale Precipitation Discussion 1149 NWS Weather Prediction ... Archived Mesoscale Discussions To view mesoscale discussions for a previous day, type in the date you wish to retrieve (e.g. 20140503 for May 3, 2014). Data …Click on the NWS Warnings and Advisories Map above for more details. Weather Topics: Watches , Mesoscale Discussions , Outlooks , Fire Weather , All Products , Contact Us. NOAA / National Weather Service. National Centers for Environmental Prediction. Storm Prediction Center.Select only tornado warnings, or select custom sets of alerts including severe thunderstorm watches, flood warnings, and tropical alerts. Then, select alerts for your GPS location or for a home or office. Advanced users will enjoy access to Area Forecast Discussions, Mesoscale Discussions, and Severe Weather Outlooks pushed right to …

A severe thunderstorm refers to a thunderstorm producing hail that is at least 1 inch in diameter or larger, and/or wind gusts of 58 mph or greater, and/or a tornado. Although lightning can be deadly, the NWS doesn't use it to define a severe thunderstorm. If it did, every thunderstorm would be severe, by definition.

The WPC Mesoscale Precipitation Discussions (MPD) and accompanying graphics are modeled after SPC's Mesoscale Discussions with a particular emphasis on the potential for flash flooding. There is a proposal to transfer the responsibility for heavy rainfall discussions from SPC to WPC by the end of the year, although SPC will retain …wx training and profession. mike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukesMesoscale Discussion 2232. Mesoscale Discussion 2232 NWS Storm Prediction Center Norman OK 0521 PM CDT Wed Oct 04 2023 Areas affected...central and eastern OK into portions of western AR and north TX Concerning...Severe Thunderstorm Watch 705 ... Valid 042221Z - 042345Z The severe weather threat for Severe Thunderstorm Watch 705 continues. Mesoscale forecast discussions regarding weather across Europe. A Massive Cold Outbreak Heads for Europe This Week, but what about Snow and White Christmas Forecast? After dynamic weather through autumn season, Europe has seen a lot of changes back and forth also this month.RealEarth collects, displays, and animates satellite, weather, earth science, and other GIS dataIf you’re looking for a way to connect with like-minded readers, a book club is the perfect solution. Book clubs offer an opportunity to discuss literature, share ideas, and make new friends.Мы хотели бы показать здесь описание, но сайт, который вы просматриваете, этого не позволяет.Are you looking for a new mattress from Mattress Firm but don’t know where to start? With so many options available, it can be hard to decide which one is the best for you. In this guide, we’ll discuss the different types of mattresses and ...No Mesoscale Discussions are currently in effect. Most recently issued Mesoscale Discussion #2253. Notice: The responsibility for Heavy Rain Mesoscale Discussions has been transferred to the Weather Prediction Center (WPC) on April 9, 2013.A mesoscale discussion (MD) is a short-term technical weather forecast (and nowcast) issued by the NOAA National Centers for Environmental Prediction (NCEP) national guidance centers. They typically are issued 1-6 hours prior to a weather event and contain a map illustrating relevant meteorological variables and the area covered.

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Here is more information about the mesoscale analysis page and a detailed description of the parameter fields. These new mesoscale analysis pages, implemented during the Spring of 2010, incorporate the use of layered transparent images and a javascript display system. They have been thoroughly tested for compatibility with …Mesoscale Discussion. When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion (MCD) statement …Mesoscale Discussion 2140 NWS Storm Prediction Center Norman OK 0245 PM CDT Tue Sep 12 2023 Areas affected...parts of southern Virginia southwestward to northeastern Georgia Concerning...Severe potential...Watch unlikely Valid 121945Z - 122145Z Probability of Watch Issuance...20 percent SUMMARY...A couple of stronger storms/storm clusters may ... A large Mesoscale Convective System (MCS), generally round or oval-shaped, which normally reaches peak intensity at night. The formal definition includes specific minimum criteria for size, duration, and eccentricity (i.e., "roundness"), based on the cloud shield as seen on infrared satellite photographs: * Size: Area of cloud top -32 degrees C ... About. Heartland READY was formed and incorporated in 2021 as a non-profit, 501 (c) (3) tax exempt organization. READY primarily works as an extension of local Emergency Management and National Weather Service. Its primary purpose is dedicated to public safety in all types of situations. We also help with Heart Walk, Omaha Corporate Cup …In book clubs and literary discussions, chapter summaries play a crucial role in facilitating deeper engagement with the text. One of the primary benefits of chapter summaries is their ability to aid readers in understanding the plot progre...Severe weather, tornado, thunderstorm, fire weather, storm report, tornado watch, severe thunderstorm watch, mesoscale discussion, convective outlook products from the Storm Prediction Center.The WPC Mesoscale Precipitation Discussions (MPD) and accompanying graphics are modeled after SPC's Mesoscale Discussions with a particular emphasis on the potential for flash flooding. There is a proposal to transfer the responsibility for heavy rainfall discussions from SPC to WPC by the end of the year, although SPC will retain …1 Introduction. The ocean-atmosphere system is primarily turbulent. In the mesoscale band, oceanic eddies play a crucial role in transporting heat, salt, momentum, and biogeochemical tracers along their trajectories, significantly impacting the ocean dynamics and fluxes [Olson, 1991; Wunsch, 1999; Morrow et al., 2003].Mesoscale eddies are coherent rotating features with typical horizontal ...Mesoscale Discussion 338. Mesoscale Discussion 0338 NWS Storm Prediction Center Norman OK 0854 AM CDT Sat Mar 25 2023 Areas affected...Eastern Wisconsin and northern Michigan Concerning...Heavy snow Valid 251354Z - 251800Z SUMMARY...Heavy snowfall rates on the order of one to two inches per hour are expected to continue across eastern Wisconsin ... Abbreviations and acronyms used in this product Geographic Boundaries - Map 1: Color Black/White Map 2: Color Black/White. Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Mon Oct 23 2023 Valid 00Z Tue Oct 24 2023 - 00Z Thu Oct 26 2023 ...A significant early season winter storm will bring heavy snowfall ... ….

Aug 8, 2023 · Current Mesoscale Discussions. This is the current graphic showing any mesoscale discussions (MD's) which are in effect over the contiguous United States. Please read the description of the purpose of our MD's for further information. Details on all valid MD's may be found on our Current Mesoscale Discussions page . Good to see everyone back. Hopefully, this season allows us to go way off topic and just shoot the shit instead of crapping our pants! Cheers to all! E Aug 27, 2023 at 12:19pm. dwill31: Just donated $100 and the message to to Im you Aug 25, 2023 at 3:58pm. grisairgasm: Hope u are doing well.A large Mesoscale Convective System (MCS), generally round or oval-shaped, which normally reaches peak intensity at night. The formal definition includes specific minimum criteria for size, duration, and eccentricity (i.e., "roundness"), based on the cloud shield as seen on infrared satellite photographs: * Size: Area of cloud top -32 degrees C ... No Mesoscale Discussions are currently in effect. Most recently issued Mesoscale Discussion #2253. Notice: The responsibility for Heavy Rain Mesoscale …Mesoscale Discussion 0147 NWS Storm Prediction Center Norman OK 0317 PM CST Thu Feb 17 2022 Areas affected...portions of central into northern Illinois Concerning...Heavy snow Valid 172117Z - 172315Z SUMMARY...Moderate to occasionally heavy snow is expected to continue for at least a few more hours across central into northern Illinois. Up …This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center during high-confidence and high-impact severe weather events. These can be for tornadoes believed to be at least EF2 on the Enhanced Fujita scale, or winds at least 100 miles per hour (160 km/h). So far, the Storm Prediction Center has issued 41 meso-gamma mesoscale discussions. Mesoscale Discussion 2260 NWS Storm Prediction Center Norman OK 0509 PM CDT Tue Oct 24 2023 Areas affected...southeastern New Mexico and southwestern Texas Concerning...Severe potential...Watch unlikely Valid 242209Z - 250045Z Probability of Watch Issuance...20 percent SUMMARY...Thunderstorms posing a risk for marginally …Mesoscale forecast discussions regarding weather across Europe. A Massive Cold Outbreak Heads for Europe This Week, but what about Snow and White Christmas Forecast? After dynamic weather through autumn season, Europe has seen a lot of changes back and forth also this month.Jan 1, 2001 · Mesoscale Discussion 561. Mesoscale Discussion 0561 NWS Storm Prediction Center Norman OK 0827 PM CDT Sun Apr 24 2022 Areas affected...Southeast Missouri into southern Illinois Concerning...Severe potential...Watch unlikely Valid 250127Z - 250330Z Probability of Watch Issuance...5 percent SUMMARY...Developing thunderstorms may be capable of ... Note: The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended. Note: Click for Watch Status Reports. SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 17 NWS Storm Prediction Center Norman OK 215 PM CST Wed Jan 19 2022 The NWS Storm … Mesoscale discussions, The MASP is located between two mountain chains ("Serra da Mantiqueira" and "Serra do Mar") with approximately 750 m of altitude, 60 km from the seashore, and being the wind regime in the region strongly influenced by mesoscale phenomena such as sea breeze, urban heat island, and mountain-valley circulations (Freitas et al. 2007). Hourly O 3, NO, NO 2, and CO concentrations measured at ..., Mesoscale Discussion When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion (MCD) statement anywhere from roughly half an hour to several hours before issuing a weather watch., Instructions for install: 1) Go to your apps button (On KitKat and greater after long press on the homescreen you'll see widgets at the bottom of the screen.) 2) Select the Widgets tab. Long press on the SPC Widget (light blue background). 3) Drag to the area you want it on your homescreen. 4) See the config screen and choose your settings for ..., The Storm Prediction Center (SPC) issues Mesoscale Discussions (MDs or MCDs) that focus on severe thunderstorm potential over the continental U.S. for the next 6 hours with an emphasis on the first 1-3 hours. SPC also issues MDs for mesoscale aspects of hazardous winter weather events including heavy snow, blizzards, and freezing rain., Shortcuts. There are some extra features tucked away in RadarScope that aren’t immediately obvious but can make your use of the app more efficient. They’re invoked by a long press, or via 3D touch on supported devices. Product Picker - Long press or 3D touch the product name to reveal a grid of commonly used radar products and tilts., A mesoscale discussion may refer to: Mesoscale convective discussion, a forecast concerning thunderstorms issued by the Storm Prediction Center (SPC) Mesoscale …, This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center during high-confidence and high-impact severe weather events. , Mesoscale Discussion 2259. Mesoscale Discussion 2259 NWS Storm Prediction Center Norman OK 0507 PM CDT Tue Oct 24 2023 Areas affected...Coulee Region into central Wisconsin Concerning...Severe potential...Watch unlikely Valid 242207Z - 250000Z Probability of Watch Issuance...5 percent SUMMARY...Isolated marginally severe hail (1 …, Mesoscale Discussion 2254  Previous MD Next MD >: Mesoscale Discussion 2254 NWS Storm Prediction Center Norman OK 1251 PM CDT Fri Oct 20 2023 Areas affected...Southeast GA into eastern SC Concerning...Severe potential...Watch unlikely Valid 201751Z - 201945Z Probability of Watch Issuance...20 percent SUMMARY...Storms capable of isolated damaging gusts and perhaps some marginal hail are ... , Mesoscale Discussion 2248. Mesoscale Discussion 2248 NWS Storm Prediction Center Norman OK 0344 PM CDT Thu Oct 12 2023 Areas affected...south-central NE...far northern KS Concerning...Tornado Watch 709 ... Valid 122044Z - 122145Z The severe weather threat for Tornado Watch 709 continues. , Mesoscale Precipitation Discussion #1161 is currently in effect. Latest Key Messages for Early Season Winter Storm . ... surface pressure, etc) over the last 1/3/6/24 hours. Data is provided from the Real-Time Mesoscale Analysis (RTMA) or the Rapid Refresh (RAP). Other Favorite Forecast Tools., Mesoscale discussions are an essential tool for meteorologists to communicate the potential development of hazardous weather events within the mesoscale range. These discussions serve as a vital link between forecasters and the public, providing early warnings and detailed analyses of developing weather situations., Mesoscale Size scale referring to weather systems smaller than synoptic-scale systems but larger than storm-scale systems. Horizontal dimensions generally range from around 50 miles to several hundred miles. Squall lines, MCCs, and MCSs are examples of mesoscale weather systems Mesoscale Convective Complex (abbrev. , Sep 25, 2002 · Archived Mesoscale Discussions To view mesoscale discussions for a previous day, type in the date you wish to retrieve (e.g. 20140503 for May 3, 2014). Data available since September 25, 2002 . , Mesoscale Discussions. Describe what is currently happening, what is expected in the next few hours, the meteorological reasoning for the forecast, and when / where SPC plans to issue the watch. Current Mesoscale Discussions : Upper Air Soundings. Skew-T charts for all observed soundings across the United States., Are you looking for the nearest depot office near you? If so, you’ve come to the right place. In this article, we will discuss how to find the closest depot office in your area. One of the easiest ways to find a depot office near you is by ..., Severe weather, tornado, thunderstorm, fire weather, storm report, tornado watch, severe thunderstorm watch, mesoscale discussion, convective outlook products from the Storm Prediction Center. weather.gov : Site Map: News: Organization : Search for: SPC NCEP All NOAA Local forecast by "City, St ..., wx training and profession. mike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukesmike geukes, On April 9th, 2013 at 1500 UTC responsibility for Heavy Rain Mesoscale Discussions will transfer to the Weather Prediction Center (WPC). Click here for the Service Change Notice. (Updated: April 5 2013) We added population information potentially impacted by the categorical convective and fire weather outlooks., Abstract. Weather forecasting is the practice of operational meteorology. Thus, forecasting problems can be separated into those that are meteorological, and those that are operational. Examples of the former are quickly learned by all students and become familiar to all. Mesoscale meteorological problems are dealt with extensively in other ..., Select only tornado warnings, or select custom sets of alerts including severe thunderstorm watches, flood warnings, and tropical alerts. Then, select alerts for your GPS location or for a home or office. Advanced users will enjoy access to Area Forecast Discussions, Mesoscale Discussions, and Severe Weather Outlooks pushed right to …, Posted in Live Blogs, Mesoscale Discussions on May 7, 2019 by Justin. The CIRA Merged TPW and All Sky LAP in the TX panhandle show some differences in the …, Mesoscale Discussion When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion (MCD) statement anywhere from roughly half an hour to several hours before issuing a weather watch., In today’s digital age, live streaming has become a powerful tool for content marketing. It allows individuals from all around the world to connect in real-time and experience events as they happen., Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us: NOAA / National Weather Service National Centers for Environmental Prediction Storm Prediction Center 120 David L. Boren Blvd. Norman, OK 73072 U.S.A. [email protected] Page last ..., No Mesoscale Discussions are currently in effect. Most recently issued Mesoscale Discussion #2253. Notice: The responsibility for Heavy Rain Mesoscale …, Mesoscale Analysis Parameter Decsriptions. Temperature. A measure of the warmth of the ambient air measured by a suitable instrument such as a thermometer. Dew Point (Dew-Point Temperature) A measure of atmospheric moisture. The temperature to which air must be cooled, at constant pressure and moisture content, in order for saturation to occur. , Because of the increasing number and frequency of SPC forecasts in 1997, product files were zipped by day instead of by month. These daily zipfiles contain all available Day-1 and Day-2 Convective Outlooks, all forms of Mesoscale Discussions and Status Reports issued within that UTC day (roughly 6 p.m. to 6 p.m. CST)., Mesoscale Discussion 954  Previous MD Next MD >: Mesoscale Discussion 0954 NWS Storm Prediction Center Norman OK 1121 PM CDT Sat May 28 2022 Areas affected...South-Central SD Concerning...Severe Thunderstorm Watch 284...Valid 290421Z - 290545Z The severe weather threat for Severe Thunderstorm …, This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center during high-confidence and high-impact severe weather events., RealEarth™ is a data discovery and visualization platform developed at SSEC/CIMSS at the University of Wisconsin-Madison to support outreach and collaboration efforts of scientists. For more information, visit our homepage. Quick-Start Guide. Collections Select a Collection to filter the list of categories and products.; Products, Next in our spectrum of spatial scales is the synoptic scale, which refers to features ranging from about 1000 kilometers (about 600 miles) to 5000 kilometers. However, I want to again emphasize some murkiness here. Many meteorologists take the smaller end of the synoptic-scale to be 2000 kilometers (about 1200 miles), so just realize that when ..., Mesoscale Discussion . SPC Activity Chart. Showing a 1 hour radar loop, the current Day 1 convective outlook, and all active watches. SPC Mesoanalysis Chart. Click on the image for a detailed look at severe weather parameters for …