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Impacts METAR Board
KIAD - Washington/Dulles In, VA, US
Updated at: 0100 UTC 28 May 2018
| Potential Impact | None | Slight | Moderate | High |
| Time | 27/13Z | 27/14Z | 27/15Z | 27/16Z | 27/17Z | 27/18Z | 27/19Z | 27/20Z | 27/21Z | 27/22Z | 27/23Z | 28/00Z | 28/01Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 76 | 79 | 83 | 84 | 86 | 83 | 82 | 78 | 74 | 74 | 74 | 75 | 73 |
| Dewpt | 71 | 70 | 71 | 70 | 68 | 70 | 71 | 74 | 71 | 70 | 71 | 71 | 69 |
| Altim | 29.93 | 29.94 | 29.94 | 29.94 | 29.93 | 29.92 | 29.91 | 29.91 | 29.92 | 29.94 | 29.94 | 29.96 | 29.97 |
| VIS | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| CIG | 180 | 180 | 250 | 250 | 42 | 45 | 110 | 80 | 100 | 90 | 85 | 45 | 45 |
| Cover | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN | BKN |
| FltCat | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR | VFR |
| WX | -- | -- | -- | -- | -- | -- | -RA | -RA | -RA | -- | -- | -- | -- |
| WDir | 290 | 220 | 0 | 80 | 300 | 0 | 210 | 210 | 210 | 200 | 0 | 100 | 110 |
| WSpd | 3 | 3 | 3 | 4 | 5 | 0 | 9 | 10 | 6 | 4 | 0 | 5 | 8 |
| WGst | -- | -- | -- | -- | -- | -- | -- | 20 | -- | -- | -- | -- | -- |
KIAD 271252Z 29003KT 10SM FEW020 SCT130 BKN180 BKN250 24/22 A2993 RMK AO2 SLP132 T02440217KIAD 271352Z 22003KT 10SM SCT027 SCT130 BKN180 BKN250 26/21 A2994 RMK AO2 SLP136 T02610211KIAD 271452Z VRB03KT 10SM SCT029 SCT140 BKN250 28/22 A2994 RMK AO2 SLP135 T02830217 50008KIAD 271552Z COR 08004KT 10SM SCT032 SCT140 BKN250 29/21 A2994 RMK AO2 SLP136 TCU DSNT W AND N T02890211KIAD 271652Z 30005KT 10SM BKN042 BKN100 BKN250 30/20 A2993 RMK AO2 SLP131 LTG DSNT SW CB DSNT SW MOV E T03000200KIAD 271752Z COR 00000KT 10SM BKN045CB BKN120 BKN250 28/21 A2992 RMK AO2 SLP127 LTG DSNT SW CBMAM OHD MOV E CB ALQDS MOV E T02830211 10300 20239 58008KIAD 271852Z 21009KT 10SM -RA SCT031 BKN110 BKN250 28/22 A2991 RMK AO2 RAB13E31B52 SLP126 LTG DSNT SW CB DSNT S-W AND NE MOV E P0000 T02780217KIAD 271952Z 21010G20KT 10SM -RA FEW028 SCT045CB BKN080 BKN130 BKN160 26/23 A2991 RMK AO2 SLP124 CB ALQDS MOV E P0000 T02560233KIAD 272052Z 21006KT 10SM -RA FEW050CB SCT065 BKN100 BKN130 BKN190 23/22 A2992 RMK AO2 SLP130 CB ALQDS MOV E P0001 60001 T02330217 53002KIAD 272152Z 20004KT 10SM FEW038 SCT065CB BKN090 BKN140 23/21 A2994 RMK AO2 RAE2054B33E51 SLP134 CB E MOV E P0000 T02330211KIAD 272252Z 00000KT 10SM FEW050 BKN085 BKN160 23/22 A2994 RMK AO2 SLP136 T02330217KIAD 272352Z 10005KT 10SM SCT024CB BKN045 BKN085 BKN160 24/22 A2996 RMK AO2 SLP143 CB ALQDS MOV E 60001 T02390217 10283 20233 53013KIAD 280052Z 11008KT 10SM SCT024CB BKN045 BKN075 23/21 A2997 RMK AO2 SLP145 CB ALQDS MOV E T02280206