diff --git a/datasets/tornadoes2024-dow.data.mdx b/datasets/tornadoes2024-dow.data.mdx
index 6bf13758c..a7e10efe2 100644
--- a/datasets/tornadoes2024-dow.data.mdx
+++ b/datasets/tornadoes2024-dow.data.mdx
@@ -257,6 +257,152 @@ layers:
spatialExtent: Local
temporalResolution: N/A
unit: dBZ
+ compare:
+ datasetId: tornadoes-2024-dow
+ layerId: tornadoes-2024-dow-v-harlan
+ mapLabel: |
+ ::js ({ dateFns, datetime, compareDatetime }) => {
+ return `${dateFns.format(datetime, 'DD LLL yyyy')}`;
+ }
+
+- id: tornadoes-2024-dow-v-greenfield
+ stacCol: tornadoes-2024-dow-v-greenfield
+ name: DOW7 Velocity (Ground; Harlan, IA)
+ type: raster
+ description: "Velocities (m/s) of the EF-3 Harlan, IA tornado on April 26, 2024 collected by DOW7. Scan taken at 23:08:12."
+ initialDatetime: newest
+ zoomExtent:
+ - 0
+ - 20
+ sourceParams:
+ colormap_name: seismic
+ nodata: -32768
+ rescale:
+ - -75
+ - 75
+ legend:
+ type: gradient
+ min: "-75 m/s"
+ max: "75 m/s"
+ stops:
+ - [ "#0000FF", -75 ] # Deep blue (negative extreme)
+ - [ "#3399FF", -50 ] # Light blue
+ - [ "#66CCFF", -25 ] # Very light blue
+ - [ "#FFFFFF", 0 ] # White (zero velocity)
+ - [ "#FF9999", 25 ] # Light pink
+ - [ "#FF6666", 50 ] # Light red
+ - [ "#FF0000", 75 ] # Deep red (positive extreme)
+ info:
+ source: Doppler on Wheels (DOW)
+ spatialExtent: Local
+ temporalResolution: N/A
+ unit: m/s
+ compare:
+ datasetId: tornadoes-2024-dow
+ layerId: tornadoes-2024-dow-refl-harlan
+ mapLabel: |
+ ::js ({ dateFns, datetime, compareDatetime }) => {
+ return `${dateFns.format(datetime, 'DD LLL yyyy')}`;
+ }
+
+ - id: tornadoes-2024-dow-rhohv-harlan
+ stacCol: tornadoes-2024-dow-rhohv-harlan
+ name: DOW7 Correlation Coefficient (Harlan, IA)
+ type: raster
+ description: "Correlation Coefficient values from the EF-3 Harlan, IA tornado on April 26, 2024 collected by DOW7. Scan taken at 23:08:12."
+ initialDatetime: newest
+ zoomExtent:
+ - 0
+ - 20
+ sourceParams:
+ colormap_name: turbo
+ nodata: -32768
+ rescale:
+ - 0
+ - 1
+ legend:
+ type: gradient
+ min: "0"
+ max: "1"
+ stops:
+ - [ "#30123B", 0.0 ] # Deep purple (low correlation)
+ - [ "#443983", 0.2 ] # Dark blue
+ - [ "#31678E", 0.4 ] # Cyan
+ - [ "#35B779", 0.6 ] # Green
+ - [ "#FDE725", 0.8 ] # Yellow
+ - [ "#FF0000", 1.0 ] # Red (high correlation)
+ info:
+ source: Doppler on Wheels (DOW)
+ spatialExtent: Local
+ temporalResolution: N/A
+ unit: unitless
+
+ - id: tornadoes-2024-dow-sw-harlan
+ stacCol: tornadoes-2024-dow-sw-harlan
+ name: DOW7 Spectrum Width (Harlan, IA)
+ type: raster
+ description: "Spectrum Width values (m/s) from the EF-3 Harlan, IA tornado on April 26, 2024 collected by DOW7. Scan taken at 23:08:12."
+ initialDatetime: newest
+ zoomExtent:
+ - 0
+ - 20
+ sourceParams:
+ colormap_name: rdpu
+ nodata: -32768
+ rescale:
+ - 0
+ - 25
+ legend:
+ type: gradient
+ min: "0 m/s"
+ max: "25 m/s"
+ stops:
+ - [ "#f7f4f9", 0 ] # Light pink (low spectrum width)
+ - [ "#fddbc7", 5 ] # Very light pink
+ - [ "#f4a582", 10 ] # Pinkish-orange
+ - [ "#d6604d", 15 ] # Orange-red
+ - [ "#b2182b", 20 ] # Deep red
+ - [ "#67001f", 25 ] # Deepest purple (high spectrum width)
+ info:
+ source: Doppler on Wheels (DOW)
+ spatialExtent: Local
+ temporalResolution: N/A
+ unit: m/s
+
+ - id: tornadoes-2024-dow-zdr-harlan
+ stacCol: tornadoes-2024-dow-zdr-harlan
+ name: DOW7 Differential Reflectivity (Harlan, IA)
+ type: raster
+ description: "Differential Reflectivity values (dB) from the EF-3 Harlan, IA tornado on April 26, 2024 collected by DOW7. Scan taken at 23:08:12."
+ initialDatetime: newest
+ zoomExtent:
+ - 0
+ - 20
+ sourceParams:
+ colormap_name: nipy_spectral
+ nodata: -32768
+ rescale:
+ - -5
+ - 7
+ legend:
+ type: gradient
+ min: "-5 dB"
+ max: "7 dB"
+ stops:
+ - [ "#000080", -5 ] # Dark blue (low ZDR)
+ - [ "#0000FF", -3 ] # Blue
+ - [ "#00FFFF", -1 ] # Cyan
+ - [ "#00FF00", 1 ] # Green
+ - [ "#FFFF00", 3 ] # Yellow
+ - [ "#FFA500", 5 ] # Orange
+ - [ "#FF0000", 6 ] # Red
+ - [ "#800080", 7 ] # Purple (high ZDR)
+ info:
+ source: Doppler on Wheels (DOW)
+ spatialExtent: Local
+ temporalResolution: N/A
+ unit: dB
+
---
diff --git a/stories/tornadoes2024.stories.mdx b/stories/tornadoes2024.stories.mdx
index bd8805040..101b10d39 100644
--- a/stories/tornadoes2024.stories.mdx
+++ b/stories/tornadoes2024.stories.mdx
@@ -1022,13 +1022,27 @@ Intense tornadoes are defined as those that receive an EF-3 rating or higher. Fr
##### Minden-Harlan, IA EF-3
The final intense tornado of the day, likely stronger than its official rating, hit Pottawattamie and Shelby Counties in Iowa, covering 40.9 miles with peak winds of 160 mph. Beginning at 5:25 PM and lifting at 6:29 PM, the tornado caused one fatality and three injuries. Starting east of McClelland, the tornado intensified near Sycamore Road and grew to 800 yards wide as it approached Minden, causing severe EF-3 damage to homes and buildings. Multiple vortices were observed in Minden, where it caused the most destruction, leading to all of the reported casualties. Northeast of Minden, it widened to nearly a mile, flipping a semi-truck on Interstate 80 and damaging homes, trees, and vehicles along the way. Near Harlan, Doppler radar detected wind speeds up to 224 mph just above the ground, suggesting potential for EF-5 damage. The tornado weakened near Defiance, eventually dissipating at the Crawford-Shelby county line, with radar indicating it may have continued briefly into Crawford County.
-
- DOW Data?
-
-
+
+
+
+
+ Comparison of DOW-collected reflectivity and velocity values from the Minden-Harlan, Iowa EF-3 tornado on April 26, 2024 as it passed northwest of Harlan. Negative velocity values indicate the wind is moving towards the radar, while positive values indicate the wind is moving away from the radar.
+