A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >
Overview
The remnants of Hurricane Helene moved into Kentucky, bringing damaging winds to central Indiana on September 27. Power lines were downed, and widespread tree damage occurred. Over 100,000 people without power at one point. For a larger scale overview of wind and rainfall, please see this Storm Summary from the WPC.Wind:
Winds gusted to nearly 70 mph at Indianapolis, with gusts between 40 and 60 mph common across central Indiana.
Public Information Statement National Weather Service Indianapolis IN 837 AM EDT Sat Sep 28 2024 ...HIGHEST WIND REPORTS FROM HELENE REMNANTS... Location Speed Time/Date Provider Indianapolis 68 MPH 0656 PM 09/27 ASOS Columbus Balkalar 58 MPH 0445 PM 09/27 AWOS Indianapolis (Eagle Creek) 55 MPH 0640 PM 09/27 ASOS Indianapolis Reg 54 MPH 0624 PM 09/27 AWOS Terre Haute 53 MPH 0833 PM 09/27 ASOS Muncie 53 MPH 0738 PM 09/27 ASOS Frankfort 52 MPH 0715 PM 09/27 AWOS Shelbyville 49 MPH 0524 PM 09/27 ASOS Bellmore 48 MPH 0718 PM 09/27 CWOP Bloomington 48 MPH 0602 PM 09/27 ASOS Greencastle 48 MPH 0755 PM 09/27 AWOS Indianapolis Exc 48 MPH 0715 PM 09/27 AWOS BROWNSBURG 47 MPH 0800 PM 09/27 CWOP 1.8 SE Whitestown (WEATHERST 46 MPH 0740 PM 09/27 MESOWEST NEW PALESTINE 46 MPH 0545 PM 09/27 CWOP Anderson Municipal Apt 46 MPH 0655 PM 09/27 AWOS Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official.
Radar
Below are a snapshot of radar velocity near the peak wind at Indianapolis, a loop of radar for central Indiana during the time of peak winds, and a radar overview of Helene:
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| Velocity at 6:54 PM EDT |
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Indianapolis IN
432 AM EDT Sat Sep 28 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0833 PM Non-Tstm Wnd Gst 4 SSW Seelyville 39.45N 87.30W
09/27/2024 M53 MPH Vigo IN ASOS
ASOS station KHUF Terre Haute.
0951 PM Non-Tstm Wnd Gst 1 SW Purdue University 40.42N 86.93W
09/27/2024 M44 MPH Tippecanoe IN ASOS
ASOS station KLAF W. Lafayette - Purdue
Univ. Arpt.
0524 PM Non-Tstm Wnd Gst 3 ESE Fairland 39.58N 85.80W
09/27/2024 M49 MPH Shelby IN ASOS
ASOS station KGEZ Shelbyville.
0545 PM Non-Tstm Wnd Gst 2 SSE New Palestine 39.70N 85.88W
09/27/2024 M46 MPH Shelby IN Mesonet
Mesonet station AV182 NEW PALESTINE.
0705 PM Non-Tstm Wnd Gst 3 E Edinburgh 39.36N 85.91W
09/27/2024 M44 MPH Shelby IN Mesonet
Mesonet station EW1771 Edinburgh.
0650 PM Non-Tstm Wnd Dmg Winchester 40.17N 84.98W
09/27/2024 Randolph IN Public
Large tree branches snapped.
0755 PM Non-Tstm Wnd Gst 1 ESE Greencastle 39.63N 86.82W
09/27/2024 M48 MPH Putnam IN AWOS
AWOS station KGPC Greencastle.
0718 PM Non-Tstm Wnd Gst 3 W Cecil Harden Lake 39.75N 87.10W
09/27/2024 M48 MPH Parke IN Mesonet
Mesonet station GW2509 Bellmore.
0700 PM Non-Tstm Wnd Dmg 1 NW Martinsville 39.43N 86.43W
09/27/2024 Morgan IN Public
Many trees and powerlines reported down
across Morgan county. Time estimated from
observations.
0602 PM Non-Tstm Wnd Gst 3 WSW Whitehall 39.15N 86.62W
09/27/2024 M48 MPH Monroe IN ASOS
ASOS station KBMG Bloomington.
0635 PM Non-Tstm Wnd Dmg 1 W Wynnedale 39.83N 86.22W
09/27/2024 Marion IN Public
Social media picture shared of large tree
limb snapped and fallen on top of a house.
0640 PM Non-Tstm Wnd Gst 1 SSE Eagle Creek Reser 39.83N 86.30W
09/27/2024 M55 MPH Marion IN ASOS
ASOS station KEYE Indianapolis (Eagle
Creek).
0644 PM Non-Tstm Wnd Gst Indianapolis Int`l Airp 39.72N 86.30W
09/27/2024 M61 MPH Marion IN Public
ASOS site reported 61 mph wind gust.
0656 PM Non-Tstm Wnd Gst 1 SW Indianapolis Int`l 39.72N 86.30W
09/27/2024 M68 MPH Marion IN ASOS
ASOS station KIND Indianapolis.
0658 PM Non-Tstm Wnd Dmg 1 SSW Broad Ripple 39.86N 86.13W
09/27/2024 Marion IN Public
Photo of large tree snapped shared on social
media. Approximately 2ft in diameter. Time
estimated from wind observations.
0700 PM Non-Tstm Wnd Dmg Speedway 39.79N 86.25W
09/27/2024 Marion IN Public
Large tree limb in road.
0722 PM Non-Tstm Wnd Dmg 2 NE Broad Ripple 39.88N 86.10W
09/27/2024 Marion IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken.
0730 PM Non-Tstm Wnd Dmg 2 SW Indiana State Fair 39.81N 86.15W
09/27/2024 Marion IN Broadcast Media
Large tree snapped at a residence on N
Washington Blvd, blocking part of the
street.
0750 PM Non-Tstm Wnd Dmg 1 SSW Broad Ripple 39.86N 86.13W
09/27/2024 Marion IN Amateur Radio
Large tree downed on Rosslyn Ave.
0650 PM Non-Tstm Wnd Dmg 2 N Country Club Height 40.15N 85.69W
09/27/2024 Madison IN Public
Social media picture shared of large tree
branches down. Time estimated from
observations.
0655 PM Non-Tstm Wnd Gst 1 WNW Chesterfield 40.12N 85.62W
09/27/2024 M46 MPH Madison IN AWOS
AWOS station KAID Anderson Municipal Apt.
0800 PM Non-Tstm Wnd Dmg Vincennes 38.69N 87.51W
09/27/2024 Knox IN Emergency Mngr
Numerous trees and utility lines down across
Knox County.
0605 PM Tstm Wnd Dmg 3 NW Trafalgar 39.44N 86.18W
09/27/2024 Johnson IN Public
Report from mPING: 1-inch tree limbs broken;
Shingles blown off.
0540 PM Non-Tstm Wnd Dmg Seymour 38.96N 85.89W
09/27/2024 Jackson IN Public
Large branches downed.
0651 PM Non-Tstm Wnd Gst 3 ESE Danville 39.75N 86.47W
09/27/2024 M44 MPH Hendricks IN AWOS
AWOS station K2R2 2 ESE Danville.
0800 PM Non-Tstm Wnd Gst 2 NW Brownsburg 39.86N 86.42W
09/27/2024 M47 MPH Hendricks IN Mesonet
Mesonet station GW4766 BROWNSBURG.
0624 PM Non-Tstm Wnd Gst 4 SSE Mccordsville 39.85N 85.90W
09/27/2024 M54 MPH Hancock IN AWOS
AWOS station KMQJ Indianapolis Reg.
0640 PM Non-Tstm Wnd Dmg 1 N Greenfield 39.80N 85.77W
09/27/2024 Hancock IN Public
Social media report of tree down on
powerlines. Time estimated from
observations.
0640 PM Non-Tstm Wnd Gst 2 NNW Mccordsville 39.93N 85.95W
09/27/2024 E65 MPH Hamilton IN Trained Spotter
Healthy tree limbs down. Time estimated from
observations.
0714 PM Non-Tstm Wnd Gst 2 N Castleton 39.93N 86.05W
09/27/2024 M43 MPH Hamilton IN AWOS
AWOS station KUMP 1 N Castleton.
0650 PM Non-Tstm Wnd Dmg Muncie 40.20N 85.39W
09/27/2024 Delaware IN Public
Social media picture shared of large tree
limbs and powerlines snapped. Time estimated
from observations.
0704 PM Non-Tstm Wnd Dmg 1 S Ball State Universi 40.18N 85.41W
09/27/2024 Delaware IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken.
0738 PM Non-Tstm Wnd Gst 3 NNE Ball State Univer 40.23N 85.40W
09/27/2024 M53 MPH Delaware IN ASOS
ASOS station KMIE Muncie.
0715 PM Non-Tstm Wnd Gst 3 WSW Frankfort 40.27N 86.57W
09/27/2024 M52 MPH Clinton IN AWOS
AWOS station KFKR Frankfort.
0635 AM Non-Tstm Wnd Gst 1 N Nashville 39.21N 86.24W
09/27/2024 M52 MPH Brown IN Public
0539 PM Non-Tstm Wnd Dmg 1 W Spurgeons Corner 39.07N 86.16W
09/27/2024 Brown IN Public
Tree branches down.
0715 PM Non-Tstm Wnd Gst 6 NNE Zionsville 40.03N 86.25W
09/27/2024 M48 MPH Boone IN AWOS
AWOS station KTYQ Indianapolis Exc.
0740 PM Non-Tstm Wnd Gst 2 ESE Whitestown 39.98N 86.32W
09/27/2024 M46 MPH Boone IN Mesonet
Mesonet station 1321W 1.8 SE Whitestown
(WEATHERSTEM).
0445 PM Non-Tstm Wnd Gst 2 SW Clifford 39.27N 85.90W
09/27/2024 M58 MPH Bartholomew IN AWOS
AWOS station KBAK Columbus Balkala.
0550 PM Non-Tstm Wnd Dmg Columbus 39.21N 85.91W
09/27/2024 Bartholomew IN Law Enforcement
Multiple trees reported down.
Rainfall
Environment
Hurricane Helene moved quickly north and became an extratropical low pressure system, which then moved into the Ohio Valley.
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| Figure 1: Zoomed Surface Map at 8 PM EDT | Figure 2: Surface Pressure and 2 Hour Pressure Change at 7 PM EDT | Figure 3: Precipitable Water and Moisture Transport at 7 PM EDT |
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