Heavy Rainfall Threat for Mid-Atlantic into Southern New England; Fire Weather Hazards for the West

Heavy rain and isolated severe thunderstorms may cause flash flooding in the northern Mid-Atlantic today. The Mid-Atlantic and Southeast heatwave is slowly easing, while cooler, drier air spreads across the Central and Eastern U.S. for the start of August. Critical fire conditions persist in the Pacific Northwest and Four Corners due to dry storms and gusty winds. Read More >

May 14, 2014
Straight Line Winds and Hail in Adams County, OH

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
233 PM EDT THU MAY 15 2014

...STRAIGHT LINE WIND DAMAGE IN ADAMS COUNTY OHIO...

THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS CONCLUDED THAT
TREE DAMAGE IN ADAMS COUNTY THAT OCCURED DURING THE SEVERE
WEATHER OF MAY 14 2014 WAS STRAIGHT LINE WIND DAMAGE.

FOR REFERENCE...STRAIGHT-LINE WINDS ARE GENERALLY ANY WIND THAT
IS NOT ASSOCIATED WITH ROTATION...USED MAINLY TO DIFFERENTIATE
THEM FROM TORNADIC WINDS.

$$

Pictures from the storm survey:

Vertical Loop of KILN Radar Imagery near Peak Intensity (4:23 PM)
0.5° Reflectivity	0.5° Storm-Relative Motion	0.5° Correlation Coefficient	0.5° Differential Reflectivity

0.5° Specific Differential Phase	0.5° Velocity	0.5° Spectrum Width	0.5° Hydrometeor Classification

0.9° Reflectivity	0.9° Storm-Relative Motion	0.9° Correlation Coefficient	0.9° Differential Reflectivity

1.3° Reflectivity	1.3° Storm-Relative Motion	1.3° Correlation Coefficient	1.3° Differential Reflectivity

2.4° Reflectivity	2.4° Storm-Relative Motion	2.4° Correlation Coefficient	2.4° Differential Reflectivity

4.0° Reflectivity	4.0° Storm-Relative Motion	4.0° Correlation Coefficient	4.0° Differential Reflectivity

5.1° Reflectivity	5.1° Storm-Relative Motion	5.1° Correlation Coefficient	5.1° Differential Reflectivity

6.4° Reflectivity	6.4° Storm-Relative Motion	6.4° Correlation Coefficient	6.4° Differential Reflectivity

8.0° Reflectivity	8.0° Storm-Relative Motion	8.0° Correlation Coefficient	8.0° Differential Reflectivity

10.0° Reflectivity	10.0° Storm-Relative Motion	10.0° Correlation Coefficient	10.0° Differential Reflectivity

12.5° Reflectivity	12.5° Storm-Relative Motion	12.5° Correlation Coefficient	12.5° Differential Reflectivity

3-Dimensional KILN Radar Imagery
4:19 PM (>20 dBZ)	4:19 PM (>50 dBZ)

4:23 PM (>20 dBZ)	4:23 PM (>50 dBZ)

KILN Radar Cross-Sections
4:23 PM	4:28 PM

Full Radar Loops from NWS Wilmington Ohio (3:08 PM - 5:14 PM)	Storm Statistics
KILN 0.5° Reflectivity (3000-4000 feet AGL) \| Animation	75 dBZ Height: ~24,000 feet 65 dBZ Height: ~30,000 feet 50 dBZ Height: ~36,000 feet Max Echo Top: ~48,000 feet
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
KILN 0.5° Storm-Relative Motion (3000-4000 feet AGL)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
KILN 1.3° Reflectivity (6000-8000 feet AGL)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
KILN 4.0° Reflectivity (16000-20000 feet AGL)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30