Multiple-Radar/Multiple-Sensor (MRMS) Data now Available in AWIPS

During the past week, a sub-set of Multi-Radar/Multi-Sensor (MRMS) data has begun flowing across the SBN into AWIPS. The MRMS is a single 4D grid of radar, lightning, environmental, and satellite data spanning the continental US and adjacent areas of Canada. The MRMS uses advanced quality control and data integration to create consistent and accurate information for a variety of forecast and warning uses including severe weather, hydrology, and aviation.  While this data has been available outside of AWIPS for a few years, its availability in AWIPS will provide significant opportunities for operations.  Note that not all MRMS products are being transmitted at this time; a list of the 26 products currently available in AWIPS is shown at the bottom of this post.

During the past 24 hours, several good examples of the application or utility of MRMS data have been noted in the Carolinas. Here are three of them:

24-hour MRMS 0.5km low-level rotational track product in the 0-2km layer for the 24-hour period ending at 12 UTC on 25 September.

24-hour MRMS 0.5km low-level rotational track product in the 0-2km layer for the 24-hour period ending at 12 UTC on 25 September.

The 24-hour MRMS 0.5km low-level rotational track product in the 0-2km layer shows the elevated rotational track values associated with the thunderstorm that produced the possible tornado a little before 05 UTC on 25 September near Charleston, SC. What appear to be several other supercells have traversed the coastal waters of the Carolinas during past 24 hours.

24-hour MRMS radar with gauge adjusted bias correction precipitation product for the 24-hour period ending at 12 UTC on 25 September.

24-hour MRMS radar with gauge adjusted bias correction precipitation product for the 24-hour period ending at 12 UTC on 25 September.

The 24-hour MRMS radar with gauge adjusted bias correction precipitation product shows the estimated rainfall during the 24-hour period ending at 12 UTC on 25 September across the Carolinas with observed 24-hour METAR precipitation observations. MRMS provides a full suite of hydrological products to improve the understanding of pat precipitation. The MRMS radar with gauge adjusted bias correction product uses QC gauge data to provide corrections from ground observations to improve the radar only estimates.

Animation of the MRMS 2-min isothermal reflectivity at reflectivity at -10°C and NLDN lightning data over the Sandhills of North Carolina from 1208 to 1230 UTC on 24 September.

Animation of the MRMS 2-min isothermal reflectivity at reflectivity at -10°C and NLDN lightning data over the Sandhills of North Carolina from 1208 to 1230 UTC on 24 September.

The animation of the MRMS 2-min isothermal reflectivity at reflectivity at -10°C over the Sandhills of North Carolina, centered over Moore County, demonstrates the utility of this product to anticipate lightning activity. Research has shown that lightning is increasingly probable as the 40+ dBZ reflectivities grow to and exceed the -10°C  height.  In this example, a couple of pixels of 40+ dBZ appear over southern Moore County and two CG lightning strikes are observed with the NLDN network a few minutes later.

The Warning Decision Training Division (WDTD) has developed several training courses and will be adding more resources soon. You can access the WDTD training at: http://www.wdtb.noaa.gov/courses/MRMS/

List of the 26 products currently available in AWIPS:
Low-Level Rotation Tracks (60 min. accum.)
Low-Level Rotation Tracks (1440 min. accum.)
Reflectivity At Lowest Altitude (RALA)
Surface Precipitation Type
Composite Reflectivity
MESH Tracks (60 min. accum.)
MESH Tracks (1440 min. accum.)
Cloud-to-Ground Lightning Density (1 min.)
Cloud-to-Ground Lightning Density (5 min.)
Cloud-to-Ground Lightning Density (15 min.)
Cloud-to-Ground Lightning Density (30 min.)
Local Gauge Bias Corrected 1H QPE
Local Gauge Bias Corrected 3H QPE
Local Gauge Bias Corrected 6H QPE
Local Gauge Bias Corrected 12H QPE
Local Gauge Bias Corrected 24H QPE
Local Gauge Bias Corrected 48H QPE
Local Gauge Bias Corrected 72H QPE
Mid-Level Rotation Tracks (60 min. accum.)
Mid-Level Rotation Tracks (1440 min. accum.)
Cloud-to-Ground Lightning Probability (0-30 min.)
Maximum Estimated Size of Hail (MESH)
Vertically Integrated Liquid (VIL)
Instantaneous Radar Precipitation Rate
Mountain Mapper 1H QPE
Mountain Mapper 3H QPE
Mountain Mapper 6H QPE
Mountain Mapper 12H QPE
Mountain Mapper 24H QPE
Mountain Mapper 48H QPE
Mountain Mapper 72H QPE
Vertically Integrated Ice (VII)
Height of 50dBZ Echo Above -20°C
Height of 50dBZ Echo Above 0°C
18 dBZ Echo Top (ET)
50 dBZ Echo Top (ET)
Radar 1H QPE
Radar 3H QPE
Radar 6H QPE
Radar 12H QPE
Radar 24H QPE
Radar 48H QPE
Radar 72H QPE
Radar Quality Index
Height of 60dBZ Echo Above 0°C
Reflectivity at 0°C
Reflectivity at -10°C
Reflectivity at -20°C
60 dBZ Echo Top (ET)
30 dBZ Echo Top (ET)
Seamless Hybrid Scan Reflectivity
Composite Reflectivity Height
Probability of Warm Rain (POWR)
Composite Reflectivity [0-4 km]
Base Reflectivity

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