Pilot Index / Maryland / Apr 21, 2017

Preliminary

Storms in Maryland on Apr 21, 2017

47 published severe reports across Maryland on Apr 21, 2017.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 32. Wind reports: 15. Tornado reports: 0.

The table and map show 40 of 47 reports.

TimeWhatSize or SpeedWhereDetails
Apr 21, 2017, 4:34 PM EDTWind60 mphGLEN
Record
  • Apr 21, 2017, 4:34 PM EDT. Wind, 60 mph, GLEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692133.
Apr 21, 2017, 4:36 PM EDTWind60 mphCARDEROCK SPGS
Record
  • Apr 21, 2017, 4:36 PM EDT. Wind, 60 mph, CARDEROCK SPGS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692134.
Apr 21, 2017, 4:42 PM EDTHail1.00 in2 NW GARRETT PARK
Record
  • Apr 21, 2017, 4:42 PM EDT. Hail, 1.00 in, 2 NW GARRETT PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c70200a6a70ae15e21e34d867ac0d69ae7996411190c9a5caa72eeab6c7ae0e4.
Apr 21, 2017, 4:42 PM EDTHail1.00 inLUXMANOR
Record
  • Apr 21, 2017, 4:42 PM EDT. Hail, 1.00 in, LUXMANOR. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691927.
Apr 21, 2017, 4:42 PM EDTWind60 mphPARKSIDE
Record
  • Apr 21, 2017, 4:42 PM EDT. Wind, 60 mph, PARKSIDE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692136.
Apr 21, 2017, 4:43 PM EDTWind60 mphPARKWOOD
Record
  • Apr 21, 2017, 4:43 PM EDT. Wind, 60 mph, PARKWOOD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692137.
Apr 21, 2017, 4:43 PM EDTWind60 mphPARKWOOD
Record
  • Apr 21, 2017, 4:43 PM EDT. Wind, 60 mph, PARKWOOD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692138.
Apr 21, 2017, 4:43 PM EDTWind60 mphWOODHAVEN
Record
  • Apr 21, 2017, 4:43 PM EDT. Wind, 60 mph, WOODHAVEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692139.
Apr 21, 2017, 4:43 PM EDTWind60 mphKENSINGTON ESTATES
Record
  • Apr 21, 2017, 4:43 PM EDT. Wind, 60 mph, KENSINGTON ESTATES. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692140.
Apr 21, 2017, 4:44 PM EDTWind60 mphPARKWOOD
Record
  • Apr 21, 2017, 4:44 PM EDT. Wind, 60 mph, PARKWOOD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692141.
Apr 21, 2017, 4:46 PM EDTWind60 mphGEORGETOWN JCT
Record
  • Apr 21, 2017, 4:46 PM EDT. Wind, 60 mph, GEORGETOWN JCT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692142.
Apr 21, 2017, 4:47 PM EDTHail1.50 in1 W CHEVY CHASE
Record
  • Apr 21, 2017, 4:47 PM EDT. Hail, 1.50 in, 1 W CHEVY CHASE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:7478d4ebf5ba8128c43fe5485440a6b16f1d624e9637a6433aedfdb2b9916f6c.
Apr 21, 2017, 4:47 PM EDTHail1.50 inFRIENDSHIP HGTS
Record
  • Apr 21, 2017, 4:47 PM EDT. Hail, 1.50 in, FRIENDSHIP HGTS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691928.
Apr 21, 2017, 4:47 PM EDTWind60 mphGEORGETOWN JCT
Record
  • Apr 21, 2017, 4:47 PM EDT. Wind, 60 mph, GEORGETOWN JCT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692143.
Apr 21, 2017, 4:48 PM EDTHail1.00 in1 W FAIRLAND
Record
  • Apr 21, 2017, 4:48 PM EDT. Hail, 1.00 in, 1 W FAIRLAND. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8e22e6760ae0663d4145f8d71d8307ad084643c6fe492812c10ef5121f14dfb9.
Apr 21, 2017, 4:49 PM EDTHail1.00 inCHEVY CHASE
Record
  • Apr 21, 2017, 4:49 PM EDT. Hail, 1.00 in, CHEVY CHASE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d152d6df6e9aea398fcbbebe6d62f82a6cc9f52b0bce49ed9fdbe05929f5b773.
Apr 21, 2017, 4:49 PM EDTHail1.00 inGEORGETOWN JCT
Record
  • Apr 21, 2017, 4:49 PM EDT. Hail, 1.00 in, GEORGETOWN JCT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691930.
Apr 21, 2017, 4:50 PM EDTHail1.50 in1 W CHEVY CHASE
Record
  • Apr 21, 2017, 4:50 PM EDT. Hail, 1.50 in, 1 W CHEVY CHASE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9ad72b53a301c69d40777a68027911fccfed64a03b7c4be03866fc75ad7cf508.
Apr 21, 2017, 4:50 PM EDTHail1.25 in1 NNW TAKOMA PARK
Record
  • Apr 21, 2017, 4:50 PM EDT. Hail, 1.25 in, 1 NNW TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b72bb2c879f1e88637548f5197d0c213ee41169c5ea70cede189cd2a1d58fa02.
Apr 21, 2017, 4:52 PM EDTHail1.00 inSILVER SPRING
Record
  • Apr 21, 2017, 4:52 PM EDT. Hail, 1.00 in, SILVER SPRING. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:082136e2c4336a2a6a9654106b57d67ee326f17aae6ae334cc5ff923c00ac3be.
Apr 21, 2017, 4:52 PM EDTHail1.00 in1 N TAKOMA PARK
Record
  • Apr 21, 2017, 4:52 PM EDT. Hail, 1.00 in, 1 N TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:3ffad53c120230834aae77f5601cec0f6acf0cfc5a494bfb5c819686d87b1a70.
Apr 21, 2017, 4:52 PM EDTHail1.00 inNORTHWEST PARK
Record
  • Apr 21, 2017, 4:52 PM EDT. Hail, 1.00 in, NORTHWEST PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691929.
Apr 21, 2017, 4:52 PM EDTHail1.25 inGEORGETOWN JCT
Record
  • Apr 21, 2017, 4:52 PM EDT. Hail, 1.25 in, GEORGETOWN JCT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691932.
Apr 21, 2017, 4:53 PM EDTHail1.25 in1 NNW TAKOMA PARK
Record
  • Apr 21, 2017, 4:53 PM EDT. Hail, 1.25 in, 1 NNW TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2f4c09efc64a9ca4e03df7e1c1e68c65f3b9b05eacc5daef91b93d618247799f.
Apr 21, 2017, 4:53 PM EDTHail1.25 inTAKOMA PARK
Record
  • Apr 21, 2017, 4:53 PM EDT. Hail, 1.25 in, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691931.
Apr 21, 2017, 4:53 PM EDTHail1.25 inTAKOMA PARK
Record
  • Apr 21, 2017, 4:53 PM EDT. Hail, 1.25 in, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691933.
Apr 21, 2017, 4:53 PM EDTWind60 mphTAKOMA PARK
Record
  • Apr 21, 2017, 4:53 PM EDT. Wind, 60 mph, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692144.
Apr 21, 2017, 4:54 PM EDTHail1.75 in1 NW TAKOMA PARK
Record
  • Apr 21, 2017, 4:54 PM EDT. Hail, 1.75 in, 1 NW TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:26e1817e4823fe517344030ec2849886a9cfaacb9a9f86fdf0d401047a123b09.
Apr 21, 2017, 4:54 PM EDTHail1.75 inTAKOMA PARK
Record
  • Apr 21, 2017, 4:54 PM EDT. Hail, 1.75 in, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691934.
Apr 21, 2017, 4:54 PM EDTWind60 mphTAKOMA PARK
Record
  • Apr 21, 2017, 4:54 PM EDT. Wind, 60 mph, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692145.
Apr 21, 2017, 4:54 PM EDTWind60 mphTAKOMA PARK
Record
  • Apr 21, 2017, 4:54 PM EDT. Wind, 60 mph, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692146.
Apr 21, 2017, 4:54 PM EDTWind60 mphTAKOMA PARK
Record
  • Apr 21, 2017, 4:54 PM EDT. Wind, 60 mph, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:692147.
Apr 21, 2017, 4:55 PM EDTHail1.00 in1 ESE SILVER SPRING
Record
  • Apr 21, 2017, 4:55 PM EDT. Hail, 1.00 in, 1 ESE SILVER SPRING. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:73155991b367b2a5d9d0ef88eac27d259fe495fe4904394dd01bb5b436cb101e.
Apr 21, 2017, 4:55 PM EDTHail1.00 in1 NW TAKOMA PARK
Record
  • Apr 21, 2017, 4:55 PM EDT. Hail, 1.00 in, 1 NW TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b2bd06bb4e29622b74cbd601c67698118efeabf4f5d71ba5e4645ade7ae55da2.
Apr 21, 2017, 4:55 PM EDTHail1.00 inTAKOMA PARK
Record
  • Apr 21, 2017, 4:55 PM EDT. Hail, 1.00 in, TAKOMA PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691935.
Apr 21, 2017, 4:58 PM EDTHail1.75 in1 NW TAKOMA PARK
Record
  • Apr 21, 2017, 4:58 PM EDT. Hail, 1.75 in, 1 NW TAKOMA PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0ab8efc39810c0bd7893a7e0b14830f1921ca5dd9a1f17bd72c29573d48fea03.
Apr 21, 2017, 5:03 PM EDTHail1.00 inCOLLEGE PARK
Record
  • Apr 21, 2017, 5:03 PM EDT. Hail, 1.00 in, COLLEGE PARK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b23f1bdc8d28896d93ae927c897e41daea33c53215766014efc9c6c297c8b29b.
Apr 21, 2017, 5:03 PM EDTHail1.00 inBRANCHVILLE
Record
  • Apr 21, 2017, 5:03 PM EDT. Hail, 1.00 in, BRANCHVILLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:691936.
Apr 21, 2017, 5:05 PM EDTHail1.00 inSILVER SPRING
Record
  • Apr 21, 2017, 5:05 PM EDT. Hail, 1.00 in, SILVER SPRING. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:20d88edd5fba29ca38587e0d583e50896cf10c56ddeb8e7f8387e12b5c68ea77.
Apr 21, 2017, 5:12 PM EDTHail1.00 inCHEVERLY
Record
  • Apr 21, 2017, 5:12 PM EDT. Hail, 1.00 in, CHEVERLY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:438d9f2faf708226c51293d542385e53f8c688618f1b49c0defb68bfeb33713a.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.