ZNR UUUUU
R 231800Z OCT 2025
FM FLEET NAVAL WEATHER CENTER NORFOLK VA
TO COMSIXTHFLT
INFO RN NORTHWOOD HQ
NATO STANAVFORLANT
CTG SIX FOUR POINT FIVE
CTF SIX ZERO
BT
UNCLAS //N03145//
MSGID/GENADMIN/FLEWEACEN NORFOLK VA/231800ZOCT25//
SUBJ/NORTH ATLANTIC OPERATIONAL WX FCST POST-STRIKE//
REF/A/OPORD WW3/STRIKE SUMMARY ICELAND/AZORES/GIBRALTAR//
RMKS/1. SYNOPSIS: RAPIDLY DEEPENING LOW PRES SYS (956MB) LOCATED 300NM W OF
ICELAND MOVG ENE.
FALLOUT DISPERSION FROM NUDET EVENTS AT KEFLAVIK, AKUREYRI, LAJES, AND
GIBRALTAR CONTRIBUTING
TO ELEVATED RAD LVLS IN DOWNWIND SECTORS.
2. FCST VALID 240000Z TO 251200Z OCT 25:
A. WIND: NW BECMG W 35-50KT G60KT NR FRONTAL BNDYS.
B. SEA STATE: 5-8, SIG WAVE HTS 4-9M.
C. VIS: 500-1500M IN PCPN AND FALLOUT HAZE.
D. CEILING: 200-800FT AGL, LOCALLY LWR NR ICELAND/AZORES.
E. WX: FREQ SHWRS RA/SL/HAIL. ISOL TSTMS PSBL.
F. TEMP: SFC 0C TO +3C. WIND CHILL BLW -5C.
G. RAD ADVISORY:
(1) KEFLAVIK/AKUREYRI: 6-7 RAD/HR WITHIN 50NM.
(2) LAJES: 5 RAD/HR WITHIN 30NM.
(3) GIBRALTAR: 5-6 RAD/HR, HOTSPOTS NR COASTAL RIDGELINES.
(4) PLUME TRAJ: NW-SE, DESCENDING TWD MID-ATLANTIC.
3. OPS IMPACT:
A. SURFACE OPS IN ICELANDIC WATERS HIGH RISK DUE TO COMBINED WX AND RAD.
B. AVOID AERIAL OPS BLW 1000FT AGL.
C. INITIATE DECON PROTOCOLS FOR UNITS TRANSITING CONTAM ZONES.
D. SECURE TOPSIDE EQUIP. EXPECT INTERMITTENT HF COMMS DISRUPTION DUE TO
IONOSPHERIC INSTABILITY.
4. NEXT FCST UPDATE 240600Z OR AS CONDS WARRANT.
BT
#231800Z/OCT25/FLEWEACEN NORFOLK//
NNNN
// CLEAR TEXT SUMMARY //
A powerful North Atlantic storm is forming west of Iceland, bringing
gale-force winds, rough seas, and freezing temperatures. Fallout from recent
nuclear strikes in Iceland, the Azores, and Gibraltar is spreading
southeastward, raising radiation levels in affected zones. Visibility is
poor, ceilings are low, and precipitation includes rain, sleet, and hail.
Naval operations near Iceland are considered high risk due to both weather
and radiation. Aircraft should avoid flying below 1,000 feet, and ships
transiting fallout zones must follow decontamination protocols.
Communications may be disrupted due to ionospheric instability. Next update
expected at 0600Z.